Click on the title of the abstract to see the abstract and CV.

Plenary Lecture

The New Age of Orthodontics with New Innovations: Overcoming the Limitations and Charting the Unknown Territories with MSE and Aligner Systems…How Does a Lingual System Fit In?
Prof. Won Moon (Department of Orthodontics, Ajou University School of Medicine, Korea)

The discipline of orthodontics is going through drastic changes with the advent of new concepts and technologies. Among these, the non-surgical maxillary expansion in mature patients and clear aligner treatment have taken the center stages of the clinical interests. Although numerous research data and successful clinical cases were presented in recent years, there are many unanswered questions, shortcomings, and challenges we must overcome as we learn to adapt these novel treatment concepts. The shortcomings associated with the maxillary expansion and the current aligner systems will be discussed in detail, and potential solutions by the use of bone-borne expander and novel aligner systems will be proposed. The Maxillary Skeletal Expander (MSE) has evolved since 2004, and overcoming its shortcomings will be illustrated through a trouble shooting exercise. Despite the continuous improvements with various aligner systems, there exist many limitations of their applications. A novel aligner concepts designed to overcome these shortcomings will be introduced, and combining these two devices for optimal treatments of difficult cases will be discussed.

Furthermore, many other novel products have been introduced in the market place, with claims of certain advantages over the existing systems. As these new innovations flood the orthodontic world, the obvious question becomes the relevance of the existing system, including the lingual appliances. The world of orthodontics is evolving at a furious speed, and it is easy to lose sight of the fundamental concepts of orthodontic biomechanics. This presentation will shed some light into incorporating the common-sense biomechanics and fundamental principles of orthodontics as we embrace the changes.

Learning Objectives:

  • Overall concept of MSE; differentiating craniofacial and dentoalveolar changes with MSE
  • Proper use and fabrication of MSE; optimal activation protocol based on mechanical and biological considerations
  • Managing challenging cases with MSE and troubleshooting
  • Shortcomings with current aligner systems
  • Novel concepts in aligner systems and future directions
  • Aligner vs Lingual System vs Labial System


Won Moon, DMD, MS
Professor, Department of Orthodontics, Ajou University School of Medicine
Adjunct Professor, The Forsyth Institute
Adjunct Professor, Kyung Hee University
Former Thomas R. Bales Endowed Chair in Orthodontics, UCLA (2013-2020)
Founder, the Moon Principles International Research Institute
Co-Founder, BioTech Innovations
Diplomate of the American Board of Orthodontics, since 2002

Dr. Won Moon is the Founder/CEO of the Moon Principles Institute (“the MoonLab”) and a Co-founder/Chief Innovations Officer of BioTech Innovations. He served as the Thomas R. Bales Endowed Chair in Orthodontics for the orthodontic residency program at UCLA School of Dentistry (2013-2020), and he currently holds three academic positions: Full-Professorship at Ajou University School of Medicine, and Adjunct Professorship at the Forsyth Institute and Kyung Hee University. He has been a Diplomate of the American Board of Orthodontics since 2002.

He completed his dental education at Harvard and orthodontic education at UCLA. He studied mathematics prior to dentistry. His work has been published in various journals, not necessarily limited to orthodontics because of his physical science background, and he is a co-author of seven textbooks, including the Graber’s 7th Edition. He has presented these findings in over 42 countries, totaling over 550 presentations. He received multiple research grants during his tenure at UCLA, including the Groundbreaking Research Project Grant Award in 2014. Besides the numerous research and presentation awards over the years, he has received the “Faculty of the Year Award” multiple times, and he was the recipient of the “Lifetime Achievement and Faculty Dedication/Excellence Award” in 2019 and the “Best Mentor Award” in 2022. His current focus has been establishing protocols for orthopedic corrections with MI, improving the airway for patients with nasal obstruction, creating virtual patients utilizing image analysis and FEM, and developing a novel Aligner System.

His interest in aligner systems began in 2010 as the aligner systems became popular, but they had countless shortcomings and could not achieve optimal orthodontic results. He has won the Center Award Grant from the American Association of Orthodontic Foundation (AAOF) in 2018 as a Co-PI of the research project, “Standard Characterization of Clear Orthodontic Aligner”, and the goal of the project was to develop protocols that can be used to evaluate the mechanical properties of clear aligners. He was also invited as a keynote speaker for the Congress of the Spanish Society of Aligners (SEDA) and National Congress of Italian Aligner Society (SIALIGN) in 2021. He is currently involved in multiple aligner research projects in collaboration with national and international colleagues.

His interest in mid-facial expansion began in 2004 as micro-implant became available in the USA, and he is responsible for developing Maxillary Skeletal Expander (MSE), a unique micro-implant assisted rapid palatal expander (MARPE). He has been active in advocating non-surgical skeletal expansion in both children and adult patients, especially for those who may suffer from airway restrictions. His presentation in MSE has been widely accepted internationally, and numerous peer-reviewed publications are available.


Lingual Appliances

Possibilities and Perspectives of Aligner Orthodontics
Dr. Hirohide Arimoto (E-smaile International Orthodontics, Japan)
有本 博英先生(イースマイル国際矯正歯科)



大阪歯科大学・大学院卒 歯学博士(歯科矯正学)。1998-2004大阪歯科大学助教。イースマイル国際矯正歯科を大阪市と芦屋市に開設。ノーマンセトリンの非抜歯矯正治療を基本とした治療を行う。1996年、日本非抜歯矯正研究会(JANO)の創立メンバー。2002年にアメリカ矯正歯科医会で招待講演。同年Joseph E. JohnsonテーブルクリニックアワードをJANOメンバーとして受賞。『非抜歯矯正治療 – Molar Oriented Orthodontics (MOO) の実際』『未来志向の歯科医ライフ』共著者。MOOや連携治療、アライナー治療、加速矯正などについて国内外で講演を行う。アラインテクノロジー社ファカルティ。デンタルモニタリング社KOL。EHアングルソサエティ正会員。EZアタッチメント、パワーボタンの発明者。


Both lingual treatment and clear aligner treatment are known as invisible orthodontic treatments, but their characteristics are quite different. Due to the different mechanical properties of the materials, modes of orthodontic force exertion, and treatment progression methods, aligner orthodontics was initially thought to be suitable only for simple cases. However, through the use of various attachments and staging innovations, clear aligner treatment can now be used in almost all types of orthodontic cases.
In addition, one of the unique features of clear aligners is that the appliance covers the entire crown of the tooth. This allows treatment to proceed while protecting the patient from occlusal interference that may occur during orthodontic treatment. This is a feature not found in multi-bracket treatment. This feature is especially advantageous in orthodontic treatment with periodontal problems, where occlusal interference must be avoided.
In this presentation, we will report a case that take advantage of these unique features of clear aligners, as well as how to deal with bodily tooth movement and rotational movement, which are conventionally considered to be difficult by clear aligner.


Dr. Hirohide Arimoto is a graduate of Osaka Dental University with a DDS and a PhD degree in Orthodontics and was an Assistant Professor at Department of Orthodontics from 1998 to 2004. He has two private practices, E-Smile International Orthodontics in Osaka and in Ashiya Japan from 2001. His orthodontic technique is based on Norman Cetlin’s nonextraction treatment and he is one of the founder member of Japanese Academy of Nonextraction Orthodontics (JANO). He was an invited speaker at the Scientific Session of American Association of Orthodontists 2002 and received Joseph E. Johnson Table Clinic Award as a member of JANO. He is a coauthor of two Japanese books, “Molar Oriented Orthodontics (2011)” and “A Life of Visionary Dentist (2014)”. He has lectured extensively both nationally and internationally, teaching courses on subjects with Molar Oriented Orthodontics, Interdisciplinary Treatment, Clear Aligner Treatment. He is a Faculty of Align Technology, KOL of Dental Monitoring, and an active member of Edward H. Angle Society of Orthodontists. Inventor of EZ Attachment and Power Button.

Lingual orthodontics in the era of aligners: allies or enemies?
Dr. Giuseppe Scuzzo (E-Line Clinic, University of Ferrara- Orthodontic Department, Italy)

New digital technologies have changed the way traditional orthodontics is practiced. Excellence in lingual orthodontics is rarely achieved suddenly or spontaneously, considering that great refinement begins at the beginning and continues throughout the treatment. Furthermore, the Clear aligner system has been radically improved in many aspects, but many movements still remain unpredictable, outlining the limits of aligner treatment.
The combination of lingual orthodontics with clear aligners in a “hybrid approach” shows a new and efficient treatment alternative. This solution significantly reduces the overall treatment time and unpredictable movements of the aligners alone.
Furthermore, digital planning through an exclusive software for both Lingual and Hybrid treatment allows you to precisely customize the position of the teeth, the design of the final torque and the coordination of the arches, improving mechanical control allowing highly predictable results with a significant reduction of treatment times

Introduce the hybrid concepts and mechanical benefits of the LSW (Lingual Straight Wire) Square Slot Bracket System combined with Clear Aligners
Explain the digitally customized design aspects of complete LSW and Hybrid systems, describing different types of mechanics that can be used combined or individually depending on the difficulty of the case
Learning outcomes
Delegates will learn about the diversity of this lingual / hybrid system and will be able to discuss how this could be introduced into their own clinical practice.


Dr. Giuseppe Scuzzo, graduated in medicine in 1983 (Rome University), specialized in dentistry (Rome University) and orthodontics at Ferrara University. He has always worked exclusively in orthodontics, with a special interest in lingual orthodontics since 1983 .
He is adjunct professor in the lingual technique at University Vita-Salute San Raffaele (Milan)and adjunct Professor at Complutense University (Madrid) and University of Salamanca (Spain). He was also director of the First International Master in Lingual orthodontics at Ferrara University and Co-Director of the PG Program in Lingual Orthodontics at the Complutense University of Madrid and at MASLO (Master Advanced Study Lingual Ortho) Basel University Swiss.
Dr. Scuzzo has spoken and published extensively in Italy and abroad on lingual orthodontics publishing 80 articles and 3 books translated in 6 languages. Together with Dr. Takemoto he developed and patented several lingual orthodontic appliances Lingual Straight Wire, STb, Alias. Light Lingual System.
Dr. Scuzzo has a private practice limited to lingual orthodontics in Rome, Italy.
EBO diplomate (European Board of Orthodontists) the only one in Europe diplomated with all lingual cases.
WBLO diplomate(World Board of Lingual Orthodontists)
Fellow member of the Royal College of Surgeons of Edinburgh.
Past president of the World Society of Lingual Orthodontics (WSLO)
Past president of World Board of Lingual Orthodontists (WBLO)
Past-President of the Italian Society of Lingual Orthodontic (AIOL)
Past .President of European Society of Lingual Orthodontics (ESLO)
President of AIDOR (Italian Academy of Orthodontics) 2016

Aligner Orthodontics for mixed dentition
Dr. John K. Kaku (Supersmile International Orthodontics, Japan)
賀久 浩生先生(スーパースマイル国際矯正歯科)



ヘンリーシャイン矯正歯科 国際講演者(2014年~現在)
アラインテクノロジー社 クリニカルコンサルタント&スピーカー(2015年~現在)
アドバイザリーボードメンバー、Align Technology (2018年 – 現在)
ミズーリ大学カンザスシティ校歯学部歯科矯正科 客員講師(2020年~現在)


The American Association of Orthodontists (AAO) recommends children get their first check-up at the first recognition of an orthodontic problem or at age 7.
Around that age, children have a mix of baby (primary) and permanent teeth. An examination at this age gives the child orthodontist a wealth of information.

The kinds of problems orthodontists may recommend treating while a child still has some baby teeth include: Underbites, Crossbites, Very crowded teeth, Excessively spaced teeth, Extra or missing teeth.

Regardless of how treatment goals are reached, the bottom line is that some orthodontic problems may be easier to correct if they are found and treated early. Waiting until all the permanent teeth have come in, or until facial growth is nearly complete, may make correction of some problems more difficult.

We have been treating anterior crossbite cases and children having missing teeth during mixed dentition. We discuss how to manage those cases treated by Aligner option.


Private Practice (SuperSmile International Orthodontics) (1994 – present)
Instructor, Japanese Academy of Non-Extraction Orthodontics (1994 – present)
Fellow, American Association of Orthodontists (1990 – present)
Fellow, Japan Orthodontic Society (1989 – present)
Fellow, Japan Association of Adult Orthodontics (1994 – present)
Clinical Consultant, TP Orthodontics (1994 – 2014)
International Speaker, Henry Schein Orthodontics (2014 – present)
Clinical Consultant & Speaker, Align Technology (2015 – present)
Advisory Board member, Align Technology (2018 – Present)
Visiting Lecturer, University of Missouri-Kansas City, School of Dentistry, Department of Orthodontics (2020 – Present)
Fellow, International College of Dentists (2021-)

Lingual Straight Wire System with Square Slot Self Ligation Bracket
Dr. Kyoto Takemoto (E-Line lingual Orthodontic Clinic, Japan)
竹元 京人先生(イーライン矯正歯科)

ALIAS には 3つの新しい概念がある。
1. 正方形のスロットにより、歯の動きをより細かくコントロールできるため、治療をより正確に計画する事ができる。
2. 治療ではストレートアーチワイヤーを使用する。そのためワイヤーベンディングを大幅に減少する事が出来る。
3. パッシブセルフライゲーションシステムを採用することでフリクションが減少し、弱い持続的な矯正力にする事が出来る。
このプレゼンテーションでは、 アリアスリンガルストレートワイヤーシステムを使った理論と症例を詳しく解説する。


ヨーロッパ舌側矯正学会の専門医、ニューヨーク大学(アメリカ)および香港大学の客員教授でもあり、世界舌側矯正学会の会長を4 年間 (2008 年から 2011 年)務めた。
2001年リンガルストレートワイヤー法(LSW)を考案し、その後Dr. Scuzzo(イタリア)と共同でSTbライトリンガルブラケットを開発。その後、正方形のスロットを備えたALIAS リンガルストレートワイヤーシステムを開発した。現在までに 20 か国以上でセミナーを開催し、5,000 人以上の矯正歯科医が参加している。
World Board of Lingual Orthodontists (WBLO会長)
英国王立エジンバラ大学医学部、M-ortho Examiner、Fellow
日本成人矯正歯科学会 (臨床指導医、総合指導医)


The mushroom arch-wire is mainly used in conventional lingual orthodontic treatment but the complicated wire bending it requires affects both the treatment results and the time spent in the chair. Since the inter bracket distance is short, it becomes difficult to control the teeth and there is a tendency that the correction force becomes too strong. In order to control teeth with a proper orthodontic force, we have developed ALIAS with a square slot bracket for precise teeth control with light orthodontic force.
With ALIAS there are 3 new concepts.
1.Square slot – the square slot gives more control over tooth movement enabling the orthodontist to more accurately predict treatment outcome.
2.Straight wire – treatment employs a plane arch-wire. With brackets bonded accurately and a full size wire the amount of wire bending is very significantly reduced.
3.Passive self-ligation system – employing a passive ligation system reduces friction and light orthodontic force can be employed.
These concepts make for simplified handing from the lingual side, and achieve better treatment. In this presentation, I will explain in detail of the theory and cases using the ALIAS Lingual straight wire system.


After graduating from the Tokyo Dental College, Dr. Kyoto Takemoto belonged to the Department of Orthodontics of Tokyo Medical – Dental University for 2 years and received a doctorate from Tokyo Dental College afterwards.
In 1983, he opened an orthodontic dental clinic in Matsudo-shi, Chiba prefecture, and in 1988 opened the first lingual orthodontic clinic in Japan (E-Line Orthodontic Clinic) in Minato-ku, Tokyo, now in Chiyoda and Matsudo.
He is a member of the World Society of Lingual Orthodontics and served as chairman (2008-2011) for four years, advancing the lingual orthodontic treatment.
He is currently a specialist of the World Society of Lingual Orthodontics and the European Society of Lingual Orthodontics, a visiting professor of Ferrara University (Italy), and has been visiting professor at New York University (USA) and Hong Kong University in the past.
Dr. Takemoto devised the 2001 Lingual straight wire method (LSW), then developed STb light lingual system with Dr. Scuzzo (Italy). They also developed ALIAS Lingual straight wire system which has a square slot. Up to now, his seminar has been held in more than 20 countries, and more than 5,000 orthodontists have participated.
Official Positions
World Society of Lingual Orthodontics, former president
Ferrara University, visiting professor
Royal college of Surgeons Edinburgh, M-ortho examiner, Fellow
Tokyo Dental College, Part time lecturer
New York University, former visiting professor
Hong Kong University, former visiting professor
World Society of Lingual Orthodontics(founding member, former president, Specialist)
European Society of Lingual Orthodontics(Specialist)
Japan Orthodontic Society(Specialist)
Japan Association of Adult Orthodontics,(Specialist and medical instructor)
Japan Lingual Orthodontic Association,( Honorary member ,Certified Physician)

The Limits and Possibilities of Aligner Orthodontic Treatment
Dr. Kenji Ojima (Hongo Sakura Orthodontics Tokyo, Japan)
尾島 賢治先生(本郷さくら矯正歯科)

2006年よりマルチブラケットによる矯正治療からアライナー型矯正治療へ推移して現在に至るまで、約 4,000症例のアライナー型矯正治療を行なってきました。マルチブラケット矯正とアライナー型矯正は治療の組み立て方や考え方も大きく異なり、歯の移動のバイオメカニクスを考慮し且つアライナー型装置の特性を最大限に発揮させることでより良い治療結果へ導くことができます。
私がアライナー型矯正治療を開始した16年前と比較して、現在アライナー型矯正治療の適応範囲の可能性は大きく広がったと考えております。現在当院では、外科的矯正治療を除く全ての症例をアライナー型矯正治療単独で治療を行なっています。しかし一方で、あらゆる先生方が新たにアライナー型矯正治療に取り組む中で、予想外の失敗や障害に向かっている現状も耳にします。国内でアライナー型矯正治療のスキルアップ目的に 2014年に立ち上げた日本アライナー矯正歯科研究会を立ち上げ、定期的な勉強会や症例検討会を開催しておりますが、会員の先生方からも多くのそのような報告を受けています。今回は、私の16年間の治療の推移と、現在取り組んでいるアライナー矯正治療の最新トピックを世界の矯正治療の現状などを織り交ぜながら供覧させていただきます。様々な症例ごとにトピックをまとめてアライナー型矯正治療ならではの治療経過をお見せできることを大変嬉しく思っております。


尾島 賢治
インビザライン社 元ファカルティ・クリニカルスピーカー
Adjunct Professor トリノ大学 矯正歯科学教室日本アライナー矯正歯科研究会 大会長
Editor of Journal of Aligner Orthodontic Quintessence


Since switching from multi-bracket system orthodontics to treating only with aligners in 2006, I have treated ever 4,000 unique cases. Treatment planning with aligners is significantly different from treatments with MBS, and with proper knowledge of the biomechanics of tooth movement, as well as the unique characteristics of aligner appliances, we are able to reach better and more predictable treatment outcomes.
When I compare the state of aligner orthodontics now with when I began using them 16 years ago, the range of treatable cases has increased dramatically. At our clinic, with the exception of orthognathic surgery, we treat exclusively using aligner appliances. At the same time, I have heard that many doctors making the transition to aligner treatments are meeting unexpected challenges and obstacles on their journey. In 2014, I founded the Japan Academy of Aligner Orthodontics (JAAO) with the objective of raising the overall skill level of aligner orthodontists in Japan. The JAAO hosts regular study groups, small-scale symposia, and case study sessions, and still I hear about the challenges of aligner orthodontic treatments from JAAO regular members. In this presentation, I will first outline the last 16 years of my journey in aligner orthodontics. Then, I will present and discuss the most cutting edge topics in modern aligner orthodontics from around the world. It is a distinct pleasure and an honor to be able to share not only my knowledge and experience, but through my cases display the true possibility of the aligner orthodontic workflow.


Dr. Kenji Ojima D.D.S M.D.Sc
Former Invisalign clinical speaker and faculty
Adjunct Professor University of Torino Italy Orthodontics Department President of Japan Academy of Aligner Orthodontics
Editor of Journal of Aligner Orthodontic Quintessence

My passion for Lingual Orthodontics
Dr. Toshiaki Hiro (Hiro Orthodontic Office、Japan)
廣 俊明先生(ひろ矯正歯科)



1985-1994; 松本歯科大学歯科矯正学講座助手
1990; 日本矯正歯科学会認定医
1993; 博士(歯学、乙)、福岡歯科大学
1994; 松本歯科大学歯科矯正学講座退職、ひろ矯正歯科開業
1997; 日本矯正歯科学会指導医
2002; 英国矯正歯科認定医(M-Ortho RCSEd)
2004; 日本成人矯正歯科学会認定医
2005; ヨーロッパ矯正歯科専門医(EBO)
2006; 日本矯正歯科学会専門医
2004; 日本成人矯正歯科学会指導医
2007; 日本成人矯正歯科学会専門医
2008; 世界舌側矯正専門医(World Board of Lingual Orthodontics)


38 years have passed since I began to work as an Orthodontic specialist, 35 years for my Lingual Orthodontic practice. At that time, there were no Lingual textbooks nor seminars, the only thing I could learn Lingual was a couple of JCO issues. My Lingual practice was trial-and-errors every day, but I never gave it up. It was a challenge for myself against the negative rumors that Lingual requires long treatment term, results are not good, provides incredible tongue pain with speech difficulties, and induce severe root resorption. I was sure that I could overcome them by solving problems associated with Lingual. Soon I could obtain quite excellent results with Lingual, so I took the board examinations such as EBO, JOB, M-Orth, etc. in order to get the evaluations by the third parties. The results were perfect, all of my Lingual cases were accepted. Also, I took the exam for Angle society, submitting not yet started cases, same as ABO, and passed it.
I proved that Lingual works same as Labial Orthodontics.
Labial Orthodontics is difficult enough for myself, but Lingual is much difficult than Labial. I have been doing them more than 35 years because they are difficult, and interesting. I would like to leave my message for the younger orthodontists, please do not take easiest way but difficult ones. Struggling with difficult, troublesome problems improve your skills as an Orthodontist. At the congress, I would introduce my practice, presenting some Lingual cases.


1985-1994; Senior Instructor, Dept.of Orthod., Matsumoto Dental Univ.
1990; Accredited Orthodontist, Japan Orthodontic Society (JOS)
1993; PhD degree from Dept. of Orthodontics, Fukuoka Dental Univ.
1994; Private practice, Shiojiri city, Nagano, Japan
1997; Accredited Orthodontic Instructor, JOS
2002; European Specialist License, Membership of Orthodontics. (M-Ortho RCSEd).
2004; License of Instructor, Japan Adult Orthodontic Society (JAOS)
2005; European Board of Orthodontists
2006; Board-Certified, Japan Orthodontic Society
2007; Board-Certified, Japan Adult Orthodontic Society
2008; World Board of Lingual Orthodontics, the first trophy in the world

Memorial Letucure

Lingual technique:passion – smile of patients
Dr. Didier Fillion (UT Health San Antonio, France)

Aesthetic and efficiency qualify the lingual technique for a long time.
3D technology, customized appliance and rigor in clinical procedures, also bring accuracy, harmony and optimisation of dental movements.
The torque control during the retraction phase of treatment with extraction requires the proper choice of brackets, archwire, anchorage and direction of force.
Several clinical examples of no friction mechanics will be presented.


Didier FILLION has been practicing lingual orthodontics exclusively for 35 years.
He has held courses in Lingual orthodontics around the world and lectured in all important adult orthodontic congress.
Founding member and Honorary President of the French Lingual Orthodontic Society (SFOL)
Founding member of the European Society of Lingual Orthodontics (ESLO)
Founding member and 1st President of the World Society of Lingual Orthodontics (WSLO)
Course Director of the two-year Lingual Orthodontic Post-graduate program at Paris-V University from 1996 to 2010
Co-Director of the Lingual Orthodontic Fellowship at the University of Texas, San Antonio, USA
Course Director of the International School of Lingual Orthodontics of Paris

Clinical Invited Lecture

Ideal Dental Arches: fundamental concepts and treatment principles relevant for all appliance types
Dr. Will A. Andrews (University of California at San Francisco, USA)

Despite being the oldest dental specialty, orthodontics remains beleaguered by some very basic questions. Where do the teeth belong within each jaw? When are premolar extractions warranted? Where do the jaws belong? Are we measuring these things the right way? What are the best ways to move teeth and jaws to their intended positions? Something akin to an epiphany occurs when realizing that orthodontic diagnosis, classification, and treatment must be focused on the individual arch rather than the malocclusion. This seemingly simple precept profoundly influences treatment decisions regardless of the appliance used. The parameters of an ideal arch are defined by individual tooth positions (inclination, angulation, rotation, height, and relative prominence) as well as by collective tooth positions (arch width, shape, depth, length, and symmetry). The goals for individual tooth positions can be succinctly summarized by the Six Keys to Optimal Occlusion. Defining goals for collective tooth positions (ideal arches) is where most discord exists among orthodontists. Scientifically supported goals for ideal arches (Element I of the Six Elements of Orofacial Harmony™) will be presented along with methods suitable for achieving them. Idealized dental arches are then the prerequisites for diagnosing and classifying jaw positions in all three planes of space (Elements II-V). Optimal occlusion (Element VI) occurs when arches and jaws are in harmony with each other, with supporting tissues, and with the face.


Dr. Will A. Andrews completed orthodontic training at the University of California at San Francisco (UCSF). He is a Diplomate of the American Board of Orthodontics, past-president of the Southern California Component of the Edward H. Angle Society of Orthodontists, and the Co-Director of the L.F. Andrews Foundation for Orthodontic Education and Research. He is a visiting lecturer at UCSF, an adjunct professor at West Virginia University and an adjunct associate professor at the University of North Carolina. He has published articles and lectured worldwide about the Six Elements Orthodontic Philosophy and maintains a private practice limited to orthodontics in San Diego, California.

Invited Lecture of Basic Study

Lingual versus labial bracket system - Comparison of tooth movement pattern from the perspective of biomechanics
Prof. Noriaki Yoshida (Nagasaki University, Japan)
吉田 教明先生(長崎大学)

本講演では、バイオメカニクスの観点から、舌側ブラケットシステムと唇側ブラケットシステムにおけるen-masse retraction時の歯の移動パターンを比較検討したいと思います。舌側ブラケットシステムでは、抜歯症例において空隙閉鎖時に切歯のアンコントロールド・ティッピング(制御されない傾斜移動)や垂直および水平方向のボーイングエフェクトなどの副作用が発生します。その結果、長い治療期間を要する可能性もあります。また,歯の舌側面にブラケットを装着することが歯の移動に大きな影響を及ぼすことが知られています。われわれは,有限要素法を用いた長期的な歯の移動シミュレーションシステムを開発し,様々な治療メカニクスを適用した際の歯の移動様相を可視化することが可能となりました。このバイオメカニクス研究により,以下のような様々な臨床上の疑問に対する解答を得ることができます。1.舌側ブラケットシステムでは,なぜボーイングエフェクトが顕著に現れるのか?2. En-masse retraction時において、スライディングメカニクスに組み合わされたパワーアームがどの程度有効なのか?3. スライディングメカニクスとループメカニクスはどちらが有効なのか?4. ワイヤー断面(ホリゾンタル・スロットとバーティカル・スロットにおける力系の違い)の効果は?5.アーチワイヤーに組み込まれたコンペンセーティング・カーブの効果は? 最後に、舌側ブラケットシステムにおける最適な荷重条件について考察を加えたいと思います。


1986年   長崎大学歯学部卒業
1990年   長崎大学歯学部附属病院矯正科 助手
1992~1994年  ベルリン自由大学(ドイツ) 研究員
1994年   フンボルト大学(ドイツ) 研究員
2000年  長崎大学歯学部附属病院矯正科 講師
2001年  長崎大学歯学部歯科矯正学講座 教授
2005年  南カリフォルニア大学(米国) 客員教授
2002年~現在 長崎大学大学院医歯薬学総合研究科 歯科矯正学分野 教授


This presentation will deal with comparison of tooth movement pattern during en-masse retraction when using lingual and labial bracket systems from the perspective of biomechanics. The lingual bracket system generates side effects such as uncontrolled tipping of the incisors, and vertical and horizontal bowing effects during space closure in extraction cases. Consequently, treatment duration could be extended. The placement of brackets on the lingual side of teeth exerts a major influence on the force system and resultant tooth movement. We developed a simulation system of long-term orthodontic tooth movement using the finite element method. Using this system, the tooth movement pattern on the application of the different mechanics can be visualized. This biomechanical study brought us answers to a variety of clinical questions as follows: 1. Why are bowing effects more remarkable with the lingual bracket system ? 2. How effective are power arms in sliding mechanics during en-masse retraction ? 3. Which is better, sliding or loop mechanics ? 4. How is the effect of wire cross-section (horizontal vs. vertical slot) ? 5. How is the effect of compensating curve incorporated into the archwire ? and so on. Finally, the optimal loading condition in the lingual bracket system will be discussed.


1980-1986 DDS from Nagasaki University School of Dentistry, Japan
1990-2000 Assistant Professor, Department of Orthodontics, Nagasaki University School of Dentistry
1992-1994 Research fellow, Department of Orthodontics and Dentofacial Orthopedics, Free University Berlin, Germany
1994 Research fellow, Humboldt University, Germany
2000-2001 Senior Assistant Professor, Department of Orthodontics, Nagasaki University School of Dentistry
2005 Visiting Professor, Orthodontics, Division of Craniofacial Sciences and Therapeutics, University of Southern California, USA
2001-present Professor and Chair, Department of Orthodontics and Dentofacial Orthopedics, Nagasaki University Graduate School of Biomedical Sciences

Invited Lecture for Staff

Effective combination of orthodontics and myofunctional therapy.
Dr. Osamu Takahashi and Dr. Miyako Takahashi (Takahashi Orthodontic Office, Japan)
高橋 治先生、高橋未哉子先生(高橋歯科矯正クリニック)



高橋 治
1986年 日本大学松戸歯学部卒業
1991年‐2000年 日本大学松戸歯学部専任教員
2000年‐ 高橋矯正歯科クリニック開設

1975年 日本歯科大学付属歯科専門学校歯科衛生士科卒業
1975年‐1980年 大野矯正クリニック勤務
1980年 米国にてBarrett氏、Zickefoose氏よりMFTを修得
2000年‐ 高橋矯正歯科クリニックにて口腔筋機能療法担当


There is a close relationship between oral functions and dentition. Good oral functions such as chewing, swallowing, and pronunciation require favorable dentition and occlusion morphology, and the maintenance of good oral function is essential for the dentition and occlusion to remain in good condition.
Dentition receives pressure from the tongue, lips, cheeks, and other muscles. When there are problems with oral function, there is an imbalance of muscle pressure over the dentition, resulting in various dental problems such as malocclusion, retroversion of orthodontic treatment, prosthesis mismatch, and induction of periodontal disease.
Oral myofunctional therapy (MFT) is “a training method to improve the function of the perioral muscles surrounding the dentition,” and by linking orthodontic treatment and MFT, both morphological and functional approaches can be taken.
 In this lecture, the points necessary for effective collaboration between orthodontic treatment and MFT will be introduced with actual treatment examples.


Osamu Takahashi, DDS, COM
1986 Graduated from Nihon University School of Dentistry at Matsudo.
1991-2000 Faculty member of Nihon University School of Dentistry at Matsudo.
2000- Director of Takahashi Orthodontic Office.
Certified Orthodontist and Accredited Orthodontic Instructor of JOS.
Certified Orofacial Myologist of International Association of Orofacial Myology.
Executive Adviser of Japanese Society of Oral Myofunctional Therapy.

Miyako Takahashi, DH, COM
1975 Graduated from Nippon Dental College School of Dental Hygiene.
1975-1980 Worked at Ohno Orthodontic Clinic.
1980- Learned MFT from Mr. Barrett and Mr. Zickefoose in the USA.
2000- In charge of MFT at Takahashi Orthodontic Clinic.
Certified Orofacial Myologist of International Association of Orofacial Myology.
Committee Member of Japanese Society of Oral Myofunctional Therapy.

Invited Lecture


Digital Set-Up, Object-Based Outcome Planning & Delivery for Lingual Braces

Dr. Geoffrey Wexler(Australia会長)
Presdient, Australasian Society of Lingual Orthodontists (ASLO)


Digital Set-Up and Delivery for Lingual Braces removes huge barriers of expensive, laborious manual components and simplifies delivery of treatment.
I will show you a super-capable, simple-to-use, yet very sophisticated digital set-up for lingual braces delivery. This system enables Hidden Lingual Braces but with major cost savings through high efficiency. Such features make lingual braces as easy and fast to set up and deliver as are labial braces, in your every-day orthodontic practice.
Digital Lingual employs the use of Object-Based Outcome Planning.
Object Based Outcome Planning in a digital set-up easily and quickly remediates bracket position errors without the use of bracket placement jigs. It eliminates wire-bending by the doctor. Object Based Outcome Planning enables machine-bending of archwires wires that are made of the most advanced materials, being Super-Elastic NiTi, TMA or CoCr. The outcomes are extremely precise, having “WYSIWYG” accuracy. The system employs simple, inexpensive design & execution. Robust, super-accurate Self-Ligation brackets are my preferred brackets but *any stock bracket may be used*. Elimination of so many barriers to entry makes Lingual Braces completely routine in my every-day practice, so that Lingual braces blend seamlessly into my everyday orthodontic practice. We combine lingual braces with labial braces and clear aligners. We truly can deliver what every adult patient wants – for every malocclusion, Fast Reliable, *Invisible*, in-expensive Teeth Straightening.


Dr Geoffrey Wexler (Australia)

  • 1981 BDSc Uni Of Melbourne
  • 1982 FRACDS Children’s Dentistry
  • 1983 MDSc Children’s & Preventive Dentistry 1983, University of Melbourne
  • 1988 MSc Orthodontics, Eastman University of London
  • 1988 Dip Orth RCS Eng
  • Held a number of Dental Society offices in Australia
  • Presented to ASLO and other meetings
  • 1989-Current- Practices privately in Melbourne. Australia
  • 23 years Lingual Practice
  • 12 Years a SureSmile® Practitioner
  • 2019 – President of Australasian Society of Lingual Orthodontists
Inspired by teachings of Dr Stuart McCrostie, Drs Scuzzo, Takemoto, Fillion, Wiechmann, Rohit Sachdeva and many brilliant SureSmile doctors. Dr Wexler currently has no financial or other beneficial arrangement with any dental supplier or manufacturer


Lingual vs Aligners

Dr. Jessy Asker(France)
President of the French lingual society


Adult patients nowadays are taking a big part of our orthodontic practice.
They want mostly esthetic treatments, confortable appliances and treatment’s time must be as short as possible.
I will share with you my daily practice and my own perception of adult’s treatment in lingual orthodontics.


Specialist in Orthodontics working in Paris, France
President of the French lingual society since 2016
Active Member in the ESLO and the WSLO
Titularised of the French Board of orthodontics
Teacher at the university of Paris VII in the Lingual orthodontic Master.

Breaking down the barriers to treatment with hybrid appliances

Dr. Asif Chatoo(England)
Fellow in Dental Surgery of the Royal College of Surgeons of England Fellow of the Pierre Fauchard Academy


Hybrid appliance therapy may be defined as the use different orthodontic appliances in opposing arches to carry out orthodontic treatment.

We now face some new challenges in providing orthodontic treatment.

  • Though we all aim to follow the same high standards of orthodontic treatment, it appears that the “University of Google” and focussed marketing shapes the minds of our patients. Many more patients attend our clinics with pre-conceived ideas on which treatment will be most suitable for them.
  • We need to explain that the provision of orthodontic treatment is not generic. Treatment is patient specific and not ‘one size fits all’.
  • As the technology improves, each type of orthodontic appliance treatment has its own treatment planning platform. The complexity arises when we can not integrate these platforms to provide a cohesive plan.
Working through the myriad of new challenges, how can we provide effective treatment and inform the patients, who now have ‘greater knowledge’, on how successful orthodontic treatment can be achieved?


Dr Chatoo qualified as a Dentist from King’s College, London in 1993. He gained his Master’s Degree in Orthodontics at GKT Dental Institute, London in 2001. Following this he embarked on a course of specialist training in lingual orthodontics in Paris in 2002. Dr Chatoo was the co-founder of The London Lingual Orthodontic Clinic, the first clinic in the UK dedicated to lingual braces. He was also a founding member of the British Lingual Orthodontic Society.
Dr Chatoo has a keen interest in the multidisciplinary treatment of adult patients. He has exclusively been using digital technology for treatment planning since 2013 during which time he has been able to treat a variety of complex interdisciplinary cases in adults and teenagers.
Dr Chatoo has lectured around the world on a variety of topics involving treatment with lingual braces. He runs a successful in office course teaching the benefits of lingual braces and the various applications to orthodontic therapy.
Dr Chatoo is a member of the following societies:

  • Fellow in Dental Surgery of the Royal College of Surgeons of England
  • Accredited member of the World Society of Lingual Orthodontics (WSLO)
  • Accredited member of the European Society of Lingual Orthodontics (ESLO)
  • Founding member and past Secretary of the British Lingual Orthodontic Society
  • Honorary Secretary of ESLO (since 2016)
  • Past Chairman of the Scientific Committee for WSLO 2019
  • Past Chairman of the Scientific Committee for ESLO 2018
  • President of The London Dental Fellowship (2014-2015)
  • Clinical Lecturer and advisor to IAS (since 2017)
  • Fellow of the Pierre Fauchard Academy

Protocol to treat patients with craneo-mandibular disorders using Lingual orthodontics

Dr. Pablo Echarri(Spain)
President of the Asociación Iberoamericana de Ortodoncistas (AIO)
from October 2016 to September 2020.


In this lecture, the author, will discuss the diagnosis of the most common craneo-mandibular disorders, as well as the protocol of the interaction between lingual orthodontics, TMJ and muscles.
Which signs and symptoms should be treated before the orthodontic treatment; which are the special considerations during the lingual orthodontic treatment regarding the care of the articulation and muscles; which are the warning alarms during the orthodontic treatment that should be taking into account; which are the protocols at the finishing and detailing stage to achieve the orthopedic stability of the mandible and which are the retention protocols for these patients.


  • Practice limited to Orthodontics.
  • DDS, University of Montevideo, Uruguay (1981).
  • Head of Master of Orthodontics and Dentofacial Orthopedics of Athenea Dental Institute, validated by the University of San Jorge, Zaragoza, Spain.
  • President of the Asociación Iberoamericana de Ortodoncistas (AIO) from October 2016 to September 2020.
  • Author of the CSW, CLO and SARDAC technique.
  • Lecturer at courses and conferences in Germany, Argentina, Australia, Austria, Azerbaijan, Belgium, Bolivia, Brazil, Bulgaria, Cambodia, Canada, Chile, China, Colombia, South Korea, Costa Rica, Ecuador, Spain, USA, Finland, France, Guatemala, Honduras, India, Italy, Japan, Jordan, Kuwait, Mexico, Monaco, Morocco, Netherlands, Panama, Paragüay, Peru, Poland, Portugal, Great Britain, Greece, Dominican Republic, Romania, Switzerland, Taiwan, Thailand, Uruguay, Uganda, United Emirates of Arabia, Venezuela, Vietnam.
  • President of the SIAOL (Sociedad Iberoamericana de Ortodoncia Lingual) (2001-2013).
  • Chairman of the 3rd International Congress of the World Society of Lingual Orthodontics (WSLO) (2007-2009).
  • 6th President of the ESLO (European Society of Lingual Orthodontics) (2002-2004).
  • President of the Scientific Committee of COEC (Catalonian Dental Society) (2004- 2014)
  • Member of the Directors Board of COEC (1999-2014)
  • Vice President of the Scientific Committee of AIO (Iberoamerican Association of Orthodontists) (2004-2010).
  • Member of the Editorial Committee of Orthodontics – The art and practice of dentofacial enhancement Journal (2010).
  • Member of ESLO Board of Directors (European Society of Lingual orthodontics) from 2012.
  • Member of Organizing Committee of 11th ESLO Congress (2014), Italy.
  • President of the Scientific Committee of 11th ESLO Congress (2014), Italy.
  • Editor-in-Chief of Tribuna Books Ripano Lingual Orthodontic Journal (from 2013-2015).
  • Saint Apolonia Medal, granted by COEC (2014)
  • Active member of the Sociedad Española de Ortodoncia (SEDO).
  • Member of the World Federation of Orthodontics (WFO).
  • International member of the American Association of Orthodontics (AAO).
  • Member of the Asociación Iberoamericana de Ortodoncistas (AIO).
  • Diplomate member of Iberoamerican Board of Orthodontists (IABO).
  • Member of the European Orthodontic Society (EOS).
  • Founding member of the Lingual Study Group in USA.
  • Member of the Director Board of the American Lingual Orthodontics Association (ALOA).
  • Diplomate Member of the European Society of Lingual Orthodontics (ESLO).
  • Member of the Société Française d’Orthodontie Linguale (SFOL).
  • Member of the Associazione Italiana Ortodonzia Linguale (AIOL).
  • Member of the Sociedad Española de Disfunción Craneomandibular (SEDC).
  • Member of the Sociedad Española de Odontopediatría (SEOP).
  • Member of the International Committee of the JLOA (Japanese Lingual Orthodontics Association) meeting, Tokyo, Japan, 2005.
  • Founding member of WSLO (World Society of Lingual Orthodontics).
  • Member of honor of the Ukrainian Society of Lingual Orthodontics (USLO).
  • Member of honor of the Bulgarian Society of Lingual Orthodontics.
  • Member of honor of the Brazilian Society of Lingual Orthodontics (ABOL).
  • Member of the European Aligner Society (EAS).
  • Outstanding Visitor of the Municipality of La Paz in 2019.
  • Echarri P, editor. Diagnóstico en ortodoncia. Estudio multidisciplinario. Barcelona (Spain): Quintessence; 1998.
  • Echarri P, Lucea A. Ortodoncia para Asistentes e Higienistas Dentales. Barcelona (Spain): Nexus Ediciones S. L.; 2002.
  • Echarri P, editor. Diagnóstico en ortodoncia. Estudio multidisciplinario. 2ª Ed. Barcelona (Spain): Nexus Ediciones S. L.; 2003.
  • Echarri P. Ortodoncia Lingual. Técnica completa paso a paso. Barcelona (España): Nexus Ediciones S. L.; 2003. (Spanish, English and Corean) 1. Echarri P. Lingual orthodontics. Complete technique, step by step. Barcelona (Spain): Nexus Ediciones S. L.; 2003. 2. Echarri P. Ortodoncia Lingual. Técnica completa paso a paso. Seoul (South Korea): Public; 2003.
  • Echarri P. Progressive Stripping Technique. [CE Course]. Cleeveland (USA):Odontos World Media, 2005.
  • Echarri P. Tratamiento ortodóncico y ortopédico de primera fase en dentición mixta. Barcelona (Spain): Nexus Ediciones S. L.; 2004.
  • Echarri P, Fernández Herrera JM, Geli Burgues J. Meseguer Planas JR. Marketing para la clínica ortodóncica. Barcelona (Spain): Nexus Ediciones S. L.; 2006.
  • Echarri P, Kim TW, Favero L. Clear Aligner. Aplicaciones clínicas y presentación de casos. Madrid (Spain): Ripano Médica; 2007.
  • Echarri P, Kim TW, Favero L, Kim HJ. Ortodoncia & Microimplantes. Técnica completa paso a paso, Madrid (Spain): Ripano, Ed. Médica; 2007. (Spanish and English) 1. Echarri P, Kim TW, Favero L, Kim HJ. Orthodontics & Microimplants. Complete technique, step by step. Madrid (Spain): Ripano Médica; 2007.
  • Echarri P. Tratamiento ortodóncico y ortopédico de primera fase en dentición mixta. 2ª ed. Madrid (Spain): Ripano Médica; 2008.
  • Echarri P. Tratamiento ortodóncico con extracciones. Madrid (Spain): Ripano Médica 2009.
  • Echarri P. Lucea A, Carrasco A. Ortodoncia para asistentes e higienistas dentales. Madrid (Spain): Ripano Médica; 2010.
  • Echarri P, editor. Nuevo enfoque en ortodoncia lingual. Madrid (Spain):Ripano Médica; 2010 (Spanish and English). 1. Echarri P, editor. New approach in lingual orthodontics. Madrid (Spain):Ripano Médica; 2010
  • Echarri P, Favero L. Ortodoncia & Microimplantes. 2ª Edition. Madrid (Spain): Ripano Médica; 2012
  • Echarri P. Clear Aligner. 1ª Edition. Madrid (Spain): Ripano Médica; 2012 (Spanish, English, German, Japanese, Corean, Chinese)
  • Echarri P. Diagnóstico y plan de tratamiento en ortodoncia. Madrid (Spain):Ripano Médica;2014.
  • Echarri P. CA CLEAR ALIGNER Advanced. 1ª Edition. Barcelona (Spain):Ladent, SL;2016.
  • Echarri P. Pérez Campoy MA, Pedernera M, Echarri J. Principles of the CSW technique. Brackets direct and indirect cementation. Mexico City (Mexico): Current Odontology;2016 (english, german and japanese)
  • Echarri P. Orthodontic and Orthopedic Treatment of the 1st phase in mix dentition . Barcelona (Spain):Athenea Dental Institute; 2017.
  • Echarri P., Lucea A., Carrasco A. Orthodontics for dental assistants and hygienists. Barcelona (Spain): Athenea Dental Institute; 2018.
  • Echarri P. CA CLEAR ALIGNER. Advanced. First Edition. Japan: Ladent, SL;2018
  • Echarri P., Echarri J., Pérez Campoy MA, Drewling I. Advanced Orthodontic Diagnosis and Treatment Plan. Barcelona (España): Athenea Dental Institute; 2019
  • Echarri P., Echarri J., Pérez Campoy MA. Treatment of Malocclusions in the vertical plane: Open and deep bites and occlusal plane rotations. Barcelona (España): Athenea Dental Institure; 2020
  • Echarri P., Ricketts RM, Kurz C, Creekmore TD, Bimler HP, Bimler AB, Drechsler TS, Mülick JF, Georgouss N. Diagnosis and Treatment Plan in Orthodontics. Barcelona (España) : Athenea Dental Institute; 2020
  • More than 190 articles published in orthodontic journals in Spain, USA, Germany, Canada, Lebanon, Mexico, Peru, Portugal, Poland, France, Korea, Japan, Thailand, India, Chile, Ecuador, Venezuela, Uruguay and Argentina.

2021: beyond lingual orthodontics.

Dr. LECOCQ Guillaume(ESLO会長)
President of ESLO


Every 15-20 years the orthodontic field faces a revolution that creates a new paradigm.
– 1978: the first patents for lingual brackets were delivered: since that date, lingual orthodontics has improved with new brackets and more sophisticated laboratory procedures.
– 1997: the first patents for aligners were delivered and introduced CAD-CAM technology as well as the use of 3D printers.
At that time the laboratory procedures for lingual and aligner therapy were kept secret, exclusive to companies and needed expensive investments. There was also a stimulating competition between companies to develop new features for their appliances.
– Mid-2010’s, 3D technology has become affordable and available on mass market so that doctors have been able to use them for lingual and aligner therapy: in-office design and manufacturing became possible.
Therefore in 2021, the new paradigm is based on understanding and mastering the digital environment : digital setups for lingual or aligner therapy, combination of both techniques with the objectives to improve the results and reduce costs for the patients. That way more patients accept the treatment and doctors get a better control of the appliance because they manage its design.
I will illustrate with cases how I manage the in-office setups and combine advantages of lingual and aligner therapy.


– Doctor in Dental Surgery and Master’s Degree in Orthodontics
– Master’s Degree in Lingual Orthodontics
– Private practice in Valenciennes, France
– Scientific director of the post graduate diploma in Lingual Orthodontic and Aesthetic at Paris V University, France
– Past President of the European Society of Lingual Orthodontics, ESLO (2016- 2022)
– Graduated with an Executive MBA from EDHEC Business School, Lille-Paris

Oral Impacts of Aligners versus Fixed Self-Ligating Lingual Orthodontic Appliances

Dr. Takis Kanarelis(Greece)
Vice President of the Association International des Orthodontistes(2015-2018).


The aim of this prospective study was to compare a fixed lingual orthodontic appliance with a commonly used aligner system, focusing on oral impacts and speech disturbances, during the first 3 months of orthodontic treatment. Two groups of adults were evaluated: 21 treated with Invisalign® and 26 with In-Ovation L® lingual brackets. Health-related quality of life questionnaires were used to assess the oral impacts, and speech samples were collected for speech evaluation by professionals. The levels of pain and painkiller intake were similar, increasing on the first day, and decreasing at 3 months. Subtle injuries on the lip and cheeks were initially reported in the aligner group. Lingual patients experienced more discomfort in swallowing and opening the mouth, tongue injuries and food residues, even at 3 months. The consonants “s” and “z” were mainly affected in both groups immediately after appliance insertion, but more of- ten in the aligner group. These speech disturbances recovered in the following 3 months. In conclusion, both groups reported disturbances in quality-of-life measures; however, patients wearing lingual appliances experienced more disturbances, which persisted af- ter three months. Speech disturbances were slightly more pronounced in the aligner group and recovered after three months.


Graduated from the Dental University of Athens.
Postgraduate studies in Orthodontics and Lingual Orthodontics in Paris
(1988-1992 and 2000-2002).
Private practice limited to Orthodontics in France and Greece.
Dental laboratory exclusively in lingual orthodontics (G.L.O.S Greek Lingual Orthodontic Services 2000 since now).
President Elect of the European Society of Lingual Orthodontics. (2014-2016).
President Elect of the Greek Society of Lingual Orthodontics. (2015-2018).
Vice President of the Association International des Orthodontistes Francophones (since 2019).
From 1994 until 2008 Professor of Orthodontics at the Technical University of Athens.
Instructor of the DUOL program at Paris V 2003-2018.
Inventor of more than 30 prototype lingual brackets.

Lingual therapy and interdisciplinary dentistry

Dr. Hatto Loidl(Germany)
Former Associate Professor Benjamin Franklin, University Hospital


There is an ever growing number of different lingual treatment- and transfer systems on the market today.
Most utilise conventional elastics or metal ligatures to fix the archwires to the brackets.
In the following lecture, complex interdisciplinary treatments using the first lingual self-ligating bracket system EVOLUTION® are outlined and examined.
The treatment of patients with complicated malocclusions, that require multiple disciplines of dentistry to work hand in hand, are illustrated in detail. Furthermore, the differences between conventional brackets, self-ligating brackets and the application of the QMS® transfer-system with regards to different wire gauges and different clinical situations are portrayed.


1992 Degree in Dentistry from the Free University of Berlin, Germany

1992-1997 Assistant in private orthodontic practice (Dr. Rausendorff), Berlin, Germany 1996 Doctoral Thesis on aesthetic brackets

1998 Orthodontic Specialist

1997-2001 Associate Professor at the University Hospital Benjamin Franklin (Head Prof. Dr. Holtgrave), Berlin, Germany

Since 2001 Private orthodontic practice, Berlin, Germany

Speaker engagement/publications since 1998

  1. Frequent speaker and instructor at conferences (AAO, WSLO, ESLO, SIAOL, ALOA, DGLO, DGKFO) in Germany, Austria, Italy, France, Spain, Hungary, Belgium, Great Britain, Turkey, USA, Canada, Argentina, China, South Korea, Taiwan, etc.
  2. Invitations for lingual courses and speaker for the orthodontic department at the Universities of Rostock, Berlin, Mainz, Munich, Peking, Istanbul, etc.
  3. Various publications and contributions to orthodontic books, e. g. Lingual & Esthetic Orthodontics – edited by Rafi Romano, Lingual Tribune, KN
Clinical Focus
  1. Treatment of adult patients with self-ligating lingual appliances
  2. Absolute anchorage
  3. Surgical treatments
  4. Clinical advisor for the Evolution Lingual Bracket System, the Joy Lingual Bracket and the Distal Glide
  1. Berlin Society of Orthodontics
  2. German Orthodontic Society
  3. World Society for Lingual Orthodontics (WSLO)

Driving the car from the digital to the clinic in lingual orthodontics

Dr. Roberto Stradi(ESLO2022大会長)
Teacher in Italian and International Education Project in Lingual Orthodontics
Scientific President of ESLO Congress 2020 and (extended) 2022 .


In the lecture, the author will try to highlight the role of the “Old Classic Biomechanic Principles” that should drive our everyday choices.
It’s a common feeling that sometimes, in our profession, there is a certain “marketing pressure” toward the latest innovations, often boosted by social media…times have truly changed!
Maximum respect and gratitude, of course, for all the researchers and pioneers paving the way and supporting the innovations with strong scientific evidence (always?).
Nothing against high-tech support for a more modern, highly performing, super bombastic orthodontic therapy, of course, but… is “the latest” always the best choice? Was it really widely tested, or maybe it comes right from the fantasy of some good, skilled clinician?
And about “transparencies”…always great and performing? Treating all and all is good?
In the talk, different types of malocclusions, exclusively treated with lingual appliances, will be shown to support my belief, with pretty unusual…and dated… bibliographic references
Let’s do it efficiently… let’s keep it simple…and hidden!


Assignments @ University of Naples “Federico II” Postgraduate programme in Orthodontics.
2001 Post Graduation in Orthodontics
2016 Master of Science in Lingual Orthodontics
2004-11 “Professore a contratto of lingual orthodontics” 2001-2019 Clinical Instructor of lingual orthodontics
2013-2017 Manager, Main Teacher and Tutor of the International II Level Master in Lingual Orthodontics
Assignments @ Aarhus University, Postgraduate programme in Orthodontics.
2019-2020 Clinical Tutor (six months) of Lingual Orthodontics
Private Assignments
– International Certification Provider of IncognitoTM Lingual System (3M Company)
– European Society of Lingual Orthodontics (ESLO) : Active and Titular Member
– World Society of Lingual Orthodontics (WSLO) : Active Member
– National and International Lecturer
– Teacher in Italian and International Education Project in Lingual Orthodontics Scientific President of ESLO Congress 2020 and (extended) 2022.

A multidisciplinary approach combining Lingual and Other Disciplines for the treatment of Complex Cases

Dr. Vittorio Cacciafesta(Itary)
President of ESLO for the years 2013-14


Treatment of complex cases, where multiple clinical problems need to be faced, can be demanding if a comprehensive treatment plan is not performed. The presentation will focus on a combined workflow, where Lingual or Invisible Orthodontic procedures are associated with Digital Design of the Smile and previsualization techniques, Implant Dentistry with soft and hard tissues augmentation, Perioplastic Surgery and Prosthetic procedures including ceramic minimally invasive bonded restorations. Multidisciplinary treatment strategies will be presented in this lecture to highlight the importance of combining different clinical procedures to achieve an improved result. The lecture will include step by step clinical presentation of different cases.


Dr. Vittorio Cacciafesta received his dental training at the University of Naples “Federico II”, Italy. From July 1995 until August 1996 he was Research Fellow at the Department of Orthodontics, Humboldt-University of Berlin, Germany. From September 1996 until August 1999 he was Orthodontic Resident at the Department of Orthodontics, Royal Dental College, Aarhus University, Denmark, where he received the Specialty and Master of Science in Orthodontics. He is “Dottore di Ricerca” (Research Doctorate) in Biotechnology of Dental Materials. From 1999 to 2009 he was Assistant Clinical Professor at the Department of Orthodontics, University of Pavia, Italy. From 1999 until 2002 he was Visiting Professor at the Department of Orthodontics, Aarhus University, Denmark, and Visiting Professor at Temple University, Philadelphia, USA.
From August 2008 he has been working at Studio Cacciafesta till present time as Specialist in Orthodontics. He is certified Invisalign, Incognito and Win, and performs all the available lingual techniques.
He was the President of ESLO (European Society of Lingual Orthodontics) for the years 2013-14, and Assistant Secretary of FEO (European Federation of Orthodontics) for the years 2003-2004.
He has published over 100 refereed publications, 2 books and 5 book chapters.
His main research interests are bonding materials, brackets, metallurgy, friction between brackets and wires. His main clinical interests are Lingual Orthodontics, TADs, Biomechanics, Orthodontic treatment of Adults and Multidisciplinary cases. He has been lecturing extensively in Europe, Middle East, Asia and North and South America, Africa. Currently, he practices in his own clinic in Milan, Italy and Stevenage, UK.


Lingual, Aligners and TADS – The NewAge digital technology and mechanics.

Dr. Pravin Shetty
Managing Trustee & Director , – Vasantdada Patil Dental College & Hospital & Institute of Post-Graduate Studies and Professor


The newer Digital Esthetic appliance such as Lingual and Aligners has challenged the way we think in treating complex malocclusion cases.

The state of the art Lingualmatrix Cad/cam system is an excellent lingual system for Orthodontists, who wish to have a customised appliance for their patients which can provide them with complete 3 dimensional control, accuracy, good finish, patient comfort , reduced chair side time and minimal appointments.

With the advent of Aligners, plastic polymers , 3D printing technology and virtual tooth movement software, it has enabled us to use Aligners in complex cases and this form of treatment is becoming more popular as it opens up new diamension in current orthodontics ERA.

The presentation shall enlighten on concept , technology features ,and pathbreaking combination of cad/cam lingual appliance ,Aligners with Microimplants for management of complex malocclusion.


-Managing Trustee & Director , – Vasantdada Patil Dental College & Hospital & Institute of Post-Graduate Studies and Professor -Department of Orthodontics.
-Past-Vice-President, Indian Orthodontic Society.
-Founder Member & Past President – of Lingual Orthodontic Society[India].
-Active Member-European Society Of Lingual Orthodontics [ESLO] and World Society of Lingual Orthodontics[WSLO]
-Inventor of Cad/cam based customized 3d-lingual bracket system – Lingualmatrix. [process patent] and Smilealign- 3-d aligners.

  • Has been invited as Guest speaker at –
  • Australasian society of lingual Orthodontics –Sydney,Australia
  • World society of Lingual Orthodontics- Barcelona ,Spain
  • University of tecknologia Mara-Malaysia.
  • European society of Lingual Orthodontics-Cascais-Portugal.
  • Srilanka orthodontic society- Colombo.
  • European society of lingual orthodontics-Athens-Greece.
  • World Society Lingual Orthodontics – Seoul-Korea.
  • Asian lingual Orthodontic meeting [ALOM]-Korea
  • Australasian Lingual Society –Melbourne-Australia.
  • APOC-Bali, Indonesia,
  • South Asian Orthodontic Congress-Nepal,
  • Was keynote speaker at MYC conducted at Istanbul, malyasia.
  • Conducted numerous hands-on Training on LingualMatrix and smilealign – digital systems
  • Has published numerous articles in International and National Journal of Orthodontics.
  • Recently, JCO has published the technology of lingualmatrix on the coverpage of Nov.2016 issue.
He has received –
1st prize at INCOGNITO – fastest ligating competition held at European society of lingual orthodontiocs [ESLO] Cannes ,France ,2009 and

2nd prize at world society of lingual orthodontics[WSLO], Seoul,Korea,2008.


My Twenty-Year Journey in Lingual Treatment
~ From ESLO 2002 in Barcelona to WSLO 2023 in Kobe ~

Dr. Ryuzou Fukawa(WSLO会長)
布川矯正歯科 Fukawa Orthodontic Office President, WSLO


今回の講演では、20年間余りの私のリンガル治療について各種不正咬合の症例を通してその治療の特徴と進化についてお話をしたい。フィリオン先生直伝のリンガル治療をベースにして、そこにミニスクリュー・オーソアンカーやMOON先生直伝のMaxillary Skeletal Expander、管原淳二先生のプレートタイプのオーソアンカー等を治療に組み込む事で、上下顎歯列の3次元的コントロールが可能となり、外科矯正なしにもかかわらず、咬合のみならず劇的な顔貌の変化を得ることができたので報告したい。特にリンガル特性を活かした患者固有のトルク処方、エイジングを考慮したIncisor displayにもこだわったリンガル治療にフォーカスを当ててみた。


1980年 大阪歯科大学卒業後、同大学矯正学教室にて歯科矯正学を専攻
1983~1985年 南カリフォルニア大学 Dr. Dougherty course 修了
1985~1991年 兵庫県西宮市中西矯正歯科勤務
1990年 大阪歯科大学歯科矯正学講座にて歯学博士取得
1991年 布川矯正歯科専門開業(東大阪市にて)
1993年 米国カリフォルニア F.A.C.E(医学生涯継続教育財団) course 修了
2001年 英国矯正歯科認定医試験(M-Ortho RCSEd)に合格
2002~2019年 フランス、パリ大学Dr.Didier FILLIONのもとで、毎年舌側矯正治療を研鑚
2006年 第1回日本矯正歯科学会専門医試験に合格
2006年 日本成人矯正歯科学会専門医審査に合格
2010年 WBLO(The World Board of Lingual Orthodontists)Founding Member
2010年 ヨーロッパ舌側矯正歯科上級専門医 Titular member
2011年 WBLO初代会長に就任(2011~2015)
2016年 ヨーロッパ矯正上級専門医(EBO: European Board of Orthodontists)
2018年 米国Edward H. Angle Southern CaliforniaComponent矯正歯科学会Regular member

米国Edward H. Angle(Southern California component)矯正歯科学会正会員
ヨーロッパ矯正歯科上級専門医(Member of the European Board of Orthodontists)
英国ロイヤルエジンバラ矯正歯科認定医(M Orth RCSEd)
日本矯正歯科学会 臨床指導医•指導医•認定医
日本成人矯正歯科学会 総合指導医•指導医•認定医
世界舌側矯正歯科上級専門医(The World Board of Lingual Orthodontists・初代会長)
ヨーロッパ舌側矯正歯科上級専門医Titular member of European Society of Lingual Orthodontics)
米国Tweed foundation regular member

The 1st president of the World Board of Lingual Orthodontists
2020~2022年度 World Society of Lingual Orthodontics 会長


I made my debut in lingual orthodontics at the ESLO meeting in Barcelona in 2002, when I presented two cases to become its member. These cases were the second and third cases that I treated using Kurz’s brackets as taught by Dr. Didier Fillion. I went on to learn about mini-screw anchors from Dr. Hi-Moon Kyung and Dr. Choi-Ho Paik, titanium plates from Dr. Junji Sugawara, and Maxillary Skeletal Expander from Dr. Won Moon. Furthermore, the base of my orthodontic treatment was built on the teachings of Dr. Harry Dougherty and Dr. Keith Tanaka at USC, Dr. Terrell Root, and Dr. Richard McLaughlin. This has become the foundation of my current lingual practice enabling me to maximize its clinical effectiveness. I would like to introduce some of the highlights of my lingual orthodontic journey.


– Education
1980 Graduated from Osaka Dental University, and entered Graduate Orthodontic Program of the same university
1990 Obtained Ph.D. from Osaka Dental University

– Post Graduate Education  
1993 Completed the course of Foundation for Advanced Continuing Education (FACE) of California, USA
– Professional Appointments  
The first president of the World Board of Lingual Orthodontists
2019-2023 President of the World Society of Lingual Orthodontics
2009-2011 President of the Japan of Lingual Orthodontic Association
2006-present Japanese Orthodontic Society Instructor
1998~2021 Part-time lecturer, Osaka Medical College
2004-2005 President-elect, Association of Orthodontic Research
in Kinki Districts

– Professional Memberships
European Board of Orthodontists
Regular Member of the Edward H. Angle Society Southern California Component
Royal College of Surgeons of Edinburgh (M-ortho)
Tweed Foundation
Board Member of the Japanese Orthodontic Society
Titular Member of the European Society of Lingual Orthodontics

– Awards
2017 Received the Francesca Miotti Best Clinical Poster Award at the 93th EOS Congress (Switzerland)
2019 Best Finished Case Award from the Southern California Component of the Edward H. Angle Society of Orthodontists

– Publications
-Fukawa,R.; Paik Cheol-Ho.; Fillion Didier.; Application of Temporary Anchorage to the Upper Arch in Lingual Appliance Therapy -Use of Mini-screws- Reprint from J.Jpn.Assoc. Orthod.Vol.18 No.1 September 2006

-Ryuzo FUKAWA : Lingual orthodontics in the new era treatment according to criteria for occlusion and aesthetics International Orthodontics. Vol.7, December 2009

-Ryuzo Fukawa, Won Moon, Toru Deguchi : Posterior crossbite with mandibular asymmetry treated with lingual appliances, maxillary skeletal expanders, and alveolar bone miniscrews. Published an article in the CLINICIAN’S CORNER of the American Journal of Orthodontics & and Dentofacial Orthopedics Volume161 Number2 February 2022

Facial changes in maxillary protrusion cases with lingual orthodontic treatment

Dr. Chiori Hashiba(WSLO大会長)
はしば矯正歯科 Hashiba Orthodontic Office Chairperson, the 9th Congress of WSLO




EBO(European board of Orthodontists)
Angle Society 正会員(South west)
WSLO(World Society of lingual orthodontics)Active member, 
ESLO (European Society of lingual orthodontics) Active member、


It is well known that facial changes can be improved after orthodontic treatment.
There are two types of invisible orthodontic appliances, aligners and lingual appliances, and I think the advantage of lingual appliances is that they can significantly change facial changes.
There are two types of facial changes: profile changes and smile changes.
For the profile change, the tooth axis and mandibular plane angle have a great influence.
I try to improve not only occlusion but also profile changes while achieving bone housing.
I use my own unique analysis method to evaluate the profile, which I would like to share with you today. I would also like to introduce the orthodontic treatment based on my smile design concept, which I have been working on for over 25 years to achieve a beautiful smile.
Today, I would like to present two cases of significant maxillary protrusion.


Graduated from Nippon Dental University, School of Dentistry (DDS)
Graduated from Nippon Dental University Graduated School of Dentistry (Orthodontics)
Accredited of Japan Orthodontics Society
Certificate of M Orth RCS (Edinburgh)
Accredited Member of American Society for Dental Aesthetics(ASDA)
Active Member of European society of Lingual Orthodontics (ESLO)
European Board of Orthodontists (EBO)
Certificate of Japan Academy of Esthetic Dentistry
Certificate of Japan Association of Adult Orthodontics Active Member of WSLO(World Society of lingual orthodontics)
Japanese board of Orthodontists
Certificate of Japan Society for Dental Anti-aging
Active member of Angle Society of Orthodontist (South West)
Accredited Member of Japan Lingual Orthodontic
Member of WFO (World Federation of orthodontist)
Director of Japan Lingual Orthodontic
Executive Director of Japan Academy of Esthetic Dentistry
Executive Director of Japan Association of Adult Orthodontics
Executive Director of Japan Academy of Digital dentistry

上部構造が取り外しできる歯科矯正用アンカースクリュー(i-station)をさらに進化させた i-stationα の紹介
Introduction of i-stationα which is further evolved the orthodontic anchor screw (i-station) that allows the superstructure to be removed.

Dr. Yasuhiro Ituki
神宮前矯正歯科 Jingumae Orthodontics




平成3年 東北大学歯学部 卒業
平成4年 鶴見大学歯学部矯正学教室
平成10年 横浜労災病院歯科口腔外科 研修医
平成13年 神宮前矯正歯科開設
平成18年 医療法人社団スマイルクリエート開設

日本矯正歯科学会 認定医、専門医
Angle Society member
World Federation of Orthodontists
歯学博士 DDS PHD


An anchor screw (i-station) with a removable superstructure has increased the range of tooth movement. Therefore, it is possible to treat difficult cases that could only be cured by surgical orthodontic treatment. However, this system required complicated adjustments and was not easy to master.
The newly developed detachable anchor screw (i-stationα) does not require complicated adjustments, has a strong fixation source, and can place the power point at the optimum position for tooth movement. This has made it possible to treat even more complex and difficult cases more easily.
This time, we will introduce a newly developed anchor screw and examine its possibilities.


Graduated from Faculty of Dentistry, Tohoku University, Japan (D.D.S.)
Received degree of PhD from Graduate School of Dentistry, Tsurumi University, Japan
Maintain a private clinic, Jingumae Orthodontics, in Tokyo, Japan
Diplomate of Japanese Orthodontic Board
Member of Japanese Orthodontic Society, Japanese Society of Oral Implantology, Japanese Cleft Palate Association, Japanese Society of Jaw deformities, European Orthodontic Society, American Association of Orthodontists and WFO.
Member of Angle Society

Esthetics or Occlusion?

Dr. Isao Matsuno
赤坂まつの矯正歯科 Akasaka Matsuno Orthodontic Office




1983 北海道大学歯学部卒業
1987 北海道大大学院修了 歯学博士PhD
1993 北海道大学歯学部講師
   赤坂まつの矯正歯科 開設
Angle Society Active member (Northern California)
日本舌側矯正歯科学会 元会長
日本口蓋裂学会 理事
・Main speaker
2002 2008 APOC 依頼講演
2005 2016 ALOA 講演者
2006 2007 2009 2010 2013 2015 2017 WSLO 依頼、特別講演
2004 2006 2008 2010 2016 ESLO key-note講演者
2008 2014 KALO 招待講演
2009 2019 台湾Lingual フォーラム特別講演
2010 WFO 依頼講演
2011 TOS 依頼講演
2014 Harmony meeting 依頼講演
2015 インドLingual矯正学会 特別講演
2016 アジアLingual 矯正フォーラム 依頼講演


Recently there is a strong tendency that chief complaint of the orthodontic patients are almost their esthetics problems. For example, they have an interest of the Gummy smile than the deep bite, the facial protrusion than the big overjet.
Of course, both improvement of the occlusion and esthetics are treatment purposes. However, if the patients whose first purpose is esthetics and second is occlusion, finished with excellent occlusion, remains esthetics problem slightly, they cannot be satisfied with the result, they would want the further treatment as they want. This treatment is almost surgical one, and then explain treatment progress, some patient suspects the orthodontic treatment has failed. So, we must explain any possibility including surgery before starting the treatment to avoid the trouble. I feel like it has become more surgery cases to meet such patient’s demands in future.


1983 Graduated from Hokkaido University School of Dentistry(DDS)
1987 Graduated from Hokkaido University Graduate school of Dental Medicine(PhD)
   Instractor Dept. of Orthodontics,
Hokkaido University
1993 Assistant Professor -Dept. of Orthodontics, Hokkaido University
Director : Akasaka Matsuno Orthodontic Office
Board & Membership
JOS (Japan Orthodontic Society) Board Member
WBLO Board member
Angle Society Active member (Northern California)
Belonged Meetings
President of JLOA (Japan Lingual Orthodontic Association) 2007-2009
Director of Japan Cleft Palate Association
Member of W.F.O
Member of A.O
Main speaker
2002 2008 APOC Meeting Invited Speaker
2005 2016 ALOA Speaker
2006 2007 2009 2010 2013 2015 2017 WSLO Speaker, key note speaker
Pre-congress lecturer
2004 2006 2008 2010 2016 ESLO Speaker, Key note speaker
2008 2014 KALO meeting Special lecturer
2009 2019 Taiwan Lingual Forum special lecturer
2010 WFO in Sydney  Invited Speaker
2011 TOS invited Speaker
2014 Harmony user meeting lecturer in USA
2015 India Lingual Orthodontic Conference Special lecturer
2016 ALOM meeting Invited speaker Seoul

Camouflage orthodontic treatment of skeletal Class III (advantages of lingual orthodontics) : Case reports.

Dr. Akiyuki Sakai
エンゼル矯正歯科 Angel Orthodontic Clinic




1982年 日本大学松戸歯学部卒業
1982年 日本大学松戸歯学部補綴学第三講座入局
1986年 千葉県松戸市 竹元矯正歯科勤務
1989年 大分にてエンゼル矯正歯科開院
2003年 F.O.S.C.(Face Occlusion Study Club)主宰
2011年より L.O.M.C.(Lingual Ortodontic Master Couse)開催
日本矯正歯科学会  臨床指導医 認定医
ヨーロッパ舌側矯正歯科学会アクティブメンバー テチュラーメンバー
日本顎咬合学会 指導医
Roth Study Club Japan


In most cases, orthognathic surgery is the ideal treatment for adults for esthetic improvement as well as functional improvement such as masticatory efficiency, but orthodontic camouflage should be considered as an alternative treatment option, considering the risks of surgery.
However, treatment of skeletal Class III is difficult for lingual orthodontics because it is accompanied by lingual tipping of the mandibular incisors.
This case report shows several cases in which achieved good treatment results by taking advantage of the unique tooth movement of lingual orthodontics.


<Career History>
1982 DDS, Nihon University of dentistry at Matsudo
1982 Prosthodontic department of Nihon University of dentistry at Matsudo
1986 Takemoto Orthodontic Clinic
1989  Private practice, Angel Orthodontic office in Oita, Japan
2003〜 F.O.S.C.(Face Occlusion Study Club)
2011〜 L.O.M.C.(Lingual Orthodontic Master Couse)
・Clinical Supervisor of Japan Orthodontic Society
・Active member of Japan Lingual Orthodontic Association
・Titular , Active member of European Society of Lingual Orthodontics
・Active member of World Society of Lingual Orthodontics
・Supervisor of the Academy of Clinical Dentistry
・Member of Roth Study Club Japan

The Era of Customized and Custom-Made Appliances
Orthodontic Treatment System with ZERO TUBE and Lingual Self-Ligating Brackets

Dr. Tetsuya Shimoda
しもだ矯正歯科クリニック Shimoda Orthodontic Clinic


デジタルテクノロジーの普及が進んでいる矯正歯科治療の中で、その恩恵を最も多く受けているのがマウスピース型カスタムメイド矯正治療である。その原形であるTooth positionerは1946年にDr.Keslingにより開発され、約50年後の1997年にCAD/CAMを用い、模型からアライナーを作製するシステムが導入され世界的に急速に広まったことは皆様周知の事実である。
今回お話しさせていただくZERO SYSTEMはそのようなリンガルシステムの中でも特にマウスピース型矯正装置との共通項が多く、ZERO SYSTEMの構成要素であるZEROチューブはマウスピース型矯正装置と組み合わせて使う事も可能である。


1990年 Graduated from Fukuoka Dental College:福岡歯科大学卒業 
1995年 日本矯正歯科学会 認定医取得 
1998年 しもだ矯正歯科クリニック
2004年 ヨーロッパ舌側矯正歯科学会認定医
2006年 世界舌側矯正歯科学会認定医
2008年 日本矯正歯科学会 臨床指導医(旧専門医)取得
2010年 日本舌側矯正歯科学会 認定医取得
2011年 WBLO menber 世界舌側矯正歯科学会専門医


The custom-made orthodontic treatments with mouthpieces are the most benefited from digital technology which is becoming increasing popular in the Orthodontic treatments.
The original tooth positioner was developed by Dr. Kesling in 1946. It is becoming popular worldwide rapidly after the system to manufacture aligners from models with CAD/CAM was introduced in 1997.
On the other hand, there is a thing in common lingual orthodontic treatments and treatments by aligners.
I will talk about “ZERO SYSTEM” which have a lot of common point of aligner treatment.
The important point is that “ZERO TUBE” is custom-made tube, not customize tube.


1990 Graduated from Fukuoka Dental College 
1995 Obtained certification from the Japanese Association of Orthodontics 
1998 Opened the Orthodontic Clinic in Shimoda, Japan.
2004 Certified by European Association of Orthodontics
2006 Certified by the World Association of Orthodontics
2008 Clinical Instructor of the Japanese Association of Orthodontics (formerly Specialist)
2010 Certified Doctor of the Japanese Association of Orthodontics
2011 WBLO menber Specialist of the World Board of Orthodontics

CBCT 画像からみた歯牙移動の限界と留意点、ガミースマイル改善の診査診断、治療について。
Limits and points to note teeth movement in bone housing and diagnosis and treatment mechanics of gummy smile correction with CBCT data.

Dr. Shoji Sugiyama
杉山矯正歯科 Sugiyama Orthodontic Clinic


フルデジタルカスタムリンガル矯正装置であるインコグニトが矯正臨床に導入されて16年が経過し、世界で16万以上のケースが、インコグニトにより治療され、良好な治療結果を得ている。今回CBCT 画像からみた、歯牙移動の限界と留意点、ガミースマイル改善の診査診断、治療について述べてみたい。


杉山 晶二
医療法人社団矯晶会 理事長 杉山矯正歯科 院長

昭和60年 3月 日本歯科大学卒業
平成 3年 3月 日本歯科大学歯科矯正学大学院博士課程修了
平成 6年11月 東京都渋谷区にて医療法人社団矯晶会
日本矯正歯科学会 認定医 臨床指導医
Incognito System K.O.L. Member
WFO フェロー


It’s progressing over 16years since Incognito was introduced in Orthodontic treatment, then it has excellent treatment results in the world. In this lecture I want to mention limits and points to note teeth movement in bone housing and diagnosis and treatment mechanics of gummy smile correction with CBCT data.


Shoji Sugiyama DDS. PhD

Graduate Nippon Dental University
Private Orthodontic Practice, Shibuya Tokyo
Japanese Board of Orthodontics Member
Incognito Key Opinion Leader
WFO fellow

Combination of Lingual Orthodontic Treatment and Aligner Appliance

Dr. Ichiro Aizawa
ソフィア歯列矯正歯科医院 Sophia Orthodontics Clinic


動的治療中においては緊密な咬合が獲得し難い場合もあり、その場合は動的治療後にダイナミックポジショナーを用いて緊密な噛み合わせを獲得する場合もあるが 、装着感に関しては違和感も強く、患者の協力を得られないことも多い。


1988~1991 日本大学補綴学第III講座
1991~現在 医療法人社団 矯相会 ソフィア歯列矯正歯科医院 理事長
2018-2022 日本舌側矯正歯科学会 理事長
ヨーロッパリンガル矯正歯科学会 認定医、Tittular member
WSLO Active member


Compared to labial orthodontic treatment, lingual orthodontic treatment reduces the distance between brackets. Depending on conditions such as the position of the bracket position from the center of resistance, the tooth movement pattern also differs, and in the case of lingual orthodontics, the level of difficulty in treatment may be higher. In addition, in the detailing stage of lingual orthodontic treatment, repeated detachment of brackets may necessitate extension of active treatment period and chair time. In some cases, it is difficult to achieve a close occlusion during active treatment, and in such cases, a dynamic positioner may be used after active treatment to achieve a close occlusion.
However, for whatever the reason, if a dynamic positioner is not comfortable, cooperation is often not obtained. At this time, we will report on the combination treatment which we switched, to a custom-made aligner appliance at the detailing stage. We were able to shorten the bracket treatment period and improve efficiency.


Curriculum Vitae
1988 Graduated from Nihon University School of Dentistry
1988~Department of Prothodontics in Nihon University School of Dentistry
1991~Sophia Orthodontic Clinic
2018~2022 President of JLOA
Active member of the JLOA.
Active member of the ESLO.
Titular member of the ESLO
Active member of the WSLO

Clinical Application of TAD in lingual orthodontics

Dr. Tetsuya Yoshida
アーク歯科・矯正歯科Arc Dental Orthodontic Office
日本舌側矯正歯科学会理事長Chairman of JLOA




吉田 哲也 (Tetsuya Yoshida)
東京歯科大学 卒業

東京歯科大学歯科矯正学講座 特別研究生

東京歯科大学歯科矯正学講座 助手

平成6年4月~平成9年4 月
小谷田矯正歯科クリニック 勤務

アーク歯科・矯正歯科 開院

日本舌側矯正歯科学会 理事長
JLOA 認定医
WSLO Active Member
ESLO Titular Member


In lingual orthodontic treatment, it is often more difficult to control the anterior torque at the time of tooth extraction void closure than on the buccal side because the brackets are attached on the lingual and palatal sides. In recent years, the use of orthodontic anchor screws has enabled effective traction and dramatically improved the accuracy of treatment in lingual extraction cases. In this article, we will introduce the use of orthodontic anchor screws useful for lingual orthodontic treatment through case examples of different placement sites and attachments.



Department of Orthodontics Dentistry of Tokyo Dental College

Koyata Orthodontic Office

Arc Dental Orthodontic Office

President of JLOA
JLOA Active Member
WSLO Active Member
ESLO  Titular Member


Lingual orthodontic method mimicking Le Fort Ⅰ maxillary impaction surgery to improve gummy smile in both the anterior and posterior areas

Dr. Ryoon-Ki Hong(WSLO副会長)
2010-2012President, Korean Association of Lingual Orthodontists (KALO)
2011-2015Vice President, World Society of Lingual Orthodontics (WSLO)


The reasons for a gummy smile include excessive maxillary vertical growth, over-eruption of the maxillary incisors, incomplete anatomic crown exposure, hyperactivity of the elevator muscles of the upper lip, or a combination of these factors. A gummy smile of skeletal origin requires orthognathic surgery for correction. Dentoalveolar gummy smiles caused by overeruption of the maxillary incisors can be corrected by intruding the extruded maxillary incisors. The dentogingival type of gummy smile is related to abnormal dental eruption or lack of gingival recession and requires lengthening of the anatomic crown. The neuromuscular type of gummy smile is caused by hypercontractibility or excessive muscle contraction and can be improved temporarily by injecting botulinum toxin type A.
With the advent of temporary skeletal anchorage devices (TSADs), the conventional concepts of anchorage control and biomechanics in orthodontics have changed, and many case reports have demonstrated orthodontic correction of gummy smile. Most studies have demonstrated management of gummy smile in the anterior area and facial profile in extraction cases by performing intrusive retraction of the maxillary anterior teeth with labial appliances and TSADs.
Considering the center of resistance and the forces applied, this presentation describes the orthodontic impaction method of the maxillary whole dentition to improve gummy smile in both the anterior and posterior areas and facial profile in a nonextraction case with the use of lingual appliances and one midpalatal TSAD.


Ryoon-Ki Hong, DDS, PHD

DDS, College of Dentistry, Seoul National University, Korea

PhD, Dental School, Tsurumi University, Japan

Practice in private office

Chairman, Department of Orthodontics, Chong-A Dental Hospital

Adjunct Professor, Department of Orthodontics,
College of Dentistry, Seoul National University

Councilor, Korean Association of Orthodontists (KAO)

Diplomate, WBLO (World Board of Lingual Orthodontists)

President, Korean Association of Lingual Orthodontists (KALO)

Vice President, World Society of Lingual Orthodontics (WSLO)

Comparison of Various Lingual Orthodontic Brackets

Dr. Hee-Moon Kyung
Dept. of Orthodontics, School of Dentistry Kyungpook National University


Since the introduction of the modern orthodontic bracket by Dr. Angle, there has been great progress in orthodontic treatment using fixed appliance. Unfortunately, the major components of fixed appliances including brackets, bands, and archwires are attached to the labial and buccal surface of the teeth, which makes conventional orthodontic appliances very unaesthetic, but esthetics was improved in the 1970’s with the introduction of appliances that used a direct bonding system. Orthodontic bands for brackets were discarded, especially in anterior and premolar segments, however, labial appliances still had esthetic limitations.
These days, there has been a marked increase in the number of adults seeking orthodontic treatment, with most of them desiring invisible orthodontic appliances. In order to avoid the unaesthetic nature of labial appliances, Dr. Fujita and Dr. Kurz have developed a lingual bracket appliance in the middle of 1970’s, and many different kinds of lingual brackets were introduced since then.
Dr. Angle first introduced 2 kinds of orthodontic brackets, vertical slot (ribbonwise) and horizontal slot (edgewise) ones, and nowadays, most of orthodontists tend to use edgewise brackets instead of ribbonwise ones. However, so many different kinds of lingual brackets, compare to labial brackets, are used in daily practice.
In this presentation, I am going to share my experience in dealing with different kinds of lingual brackets and to introduce newly developed lingual brackets as well.


College of Dentistry, Kyungpook National University, Daegu, Korea

Orthodontic training,
Infirmary Hospital of Dental College, Kyungpook Natl. University

Fulltime Instructor–> Prof.,Dental School, Kyungpook Natl. Univ.

Visiting Professor, Department of Orthodontics,
Faculty of Dentistry, Osaka University, Japan

Visiting & Clinical Associate Professor,
Department of Orthodontics, Faculty of Dentistry,
The University of British Columbia, Canada

Dean, College of Dentistry, Kyungpook National University

President, Korean Association of Lingual Orthodontists

Active member of Angle Society (East Branch)

President of World Society of Lingual Orthodontics

President of Korean Association of Orthodontists

Effective incisor intrusion with lingual appliance

Dr. Lim(KALO前会長)
Clinical professor Dept. of Orthodontics,College of Dentistry, Yonsei University


Since the lingual appliance is located near the center of resistance of the tooth compared to the labial appliance, there is a difference in tooth movement. This difference makes orthodontic treatment itself more difficult and sometimes makes treatment easier and more efficient.
Incisor intrusion is more likely to occur when lingual appliance is used. This is because pure intrusion without tipping is possible because the intrusion force passes near the center of resistance of the tooth. If these characteristics are used, treatment can be performed easily and efficiently in gummy smile correction requiring maxillary anterior intrusion or deepbite treatment where mandibular anterior intrusion is required.

1.Upper incisor intrusion
If there is a mild gummy smile, it can be improved with just the curve of the archwire without using the miniscrew for incisor intrusion.
For moderate or severe gummy smiles, miniscrews are used for incisor intrusion. In this presentation, in addition to the J screw, whose line of action is similar to the J hook headgear, I would like to present an improvement treatment modality using a miniscrew placed in the midpalate area.

2.Lower incisor intrusion
Mandibular anterior intrusion is necessary for deepbite with normal upper incisor exposure. In general, pure intrusion is required because the mandibular incisors are already labially tipping before treatment.
In the case of using the lingual appliance, since the force application point is directly above the center of resistance, it is easy to obtain pure intrusion without using additional archwires or miniscrews. Again, I would like to present its effectiveness through clinical cases.


Post Graduated Course, Graduate School, Yonsei University (M.S.D., Ph.D.)

Certificate in Orthodontics, Yonsei University Dental Hospital

Graduate from Dental College, Yonsei University, (Diploma D.D.S.)

Clinical professor Dept. of Orthodontics,

College of Dentistry, Yonsei University, Seoul, KOREA
Former director of Finance of KAO (Korean Association of Orthodontists)
Vice president of KAOF (Korean Association of Orthodontists Foundation)
President of KALO (Korean Association of Lingual Orthodontists)
Yon orthodontic clinic, Seoul, KOREA

New update for esthetic anterior alignment

Dr. Sangho Noh(KALO会長)
The President of KALO


For efficient lingual orthodontic treatment, accurate indirect bonding, proper mechanic application and esthetic finishing process are essential. In many cases of past lingual correction, the lack of understanding or lack of experience of general lingual orthodontic treatment often leads to difficulties in post-orthodontic treatment, difficulty in finishing,
It is generally difficult to confirm the presence of an orthodontic appliance at the beginning of treatment, and it is often difficult to confirm the prescription given to achieve individual treatment goals. In most cases, until the insertion of the rectangular archwire used in the mid-treatment phase, it is possible to assess the presence of an incorrectly attached orthodontic device and prescription. So, we need an understanding of the exact process In lingual orthodontic treatment.
In particular, vertical problems occur during orthodontic treatment accompanied by extraction of premolars. To prevent this during orthodontic treatment, a prescription on the setup model is given.
However, the prescription on the setup model may change due to advances in laboratory techniques, improvements in lingual brackets, advances in mechanics of lingual orthodontic treatment, and accumulation of clinical experience by orthodontists.
For this reason, orthodontists must update their clinical results while gaining clinical experience and apply them to the process of establishing a treatment plan.
In the lecture, based on the updated treatment results based on one’s own clinical experience, these considerations will be discussed in relation to how to arrange the anterior segment according to the individual patient prescription from the production of the setup model and the precautions for archwire bending applied to the patient during the treatment process.


Education and experience
Graduate from College of Dentistry, Kyunghee University, Korea

Residency program at the Department of Orthodontics,
Kyunghee University Dental Hospital, Korea

MSD from College of Dentistry, Kyunghee University, Korea

PhD from College of Dentistry, Kyunghee University, Korea

Chairman, Department of Orthodontics,
Chun-A Dental Hospital, Inchoen, Korea

Director, Beautiful Orthodontic Clinic, Koyang, Korea

Clinical Professor in College of Dentistry, Kyunghee University, Korea

Clinical Professor in College of Dentistry, Soonchenyang University, Korea

– Active member, Korean Association of Orthodontists (KAO)
– Active member of Korean Society of Lingual Orthodontists (KSLO)
– Active member of the European Society of Lingual Orthodontics (ESLO)
– Active member of the World Society of Lingual Orthodontics (WSLO)
– Clinical professor College of Dentistry, Kyunghee University, Korea,
– President of Korean Association of Lingual Orthodontists (KALO)
– Private practice, Beautiful Orthodontic Clinic, Koyang, Korea

North and South America

Distalization of maxillary molars in hyperdivergent patients

Dr. Rita Baratela(Brazil会長)
Former President of the Brazilian Association of Lingual Orthodontics


The molar distalization and skeletal anchorage have a great importance for Lingual Orthodontics biomechanics, especially in hyperdivergent patients. There are different sites for the installation of temporary anchorage devices taking into account the quality of the local bone. In this lecture I will present the technique of installing the skeletal anchorage in the tuber region of the maxilla. Installation technique, indications and contraindications.



  • Former President of the Brazilian Association of Lingual Orthodontics
  • Doctor of Odontology, Area of Concentration in Laser – Universidade Cruzeiro do Sul [Cruzeiro do Sul University].
  • Master Degree in Orthodontics – Universidade da Cidade de São Paulo [University of the City of São Paulo].
  • Specialist in Orthodontics – Universidade da Cidade de São Paulo [University of the City of São Paulo].
  • Coordinator of the Internship Lingual Orthodontics Program at Universidade Cruzeiro do Sul.
  • Coordinator of the Internship Lingual Orthodontics and Esthetics Alingners Program at TMCS Dental School.
  • Coordinator of the Especialization Orthodontics Program at Universidade Cruzeiro do Sul.
  • Researcher in the areas of Adhesion Materials and Laser in Orthodontics.
  • Effective member of the Lingual Orthodontics Brazilian Association – “ABOL”.
  • International Speaker for eBrace Lingual System
  • Member of the World Laser Federation.
  • Member of the American Association of Orthodontics.
  • Co-authored the book on Lingual Aesthetic Orthodontics.
  • Co-authored the book on Nuevo Enfoque en Ortodoncia Lingual.
  • Co-authored the book on Ortodontia Lingual, Uma Alternativa Incomparável para a Terapia Ortodôntica Estética [Lingual Orthodontics, An Incomparable Alternative for Aesthetic Orthodontics Therapy].
  • Co-authored the book on Ortodontia na Visão Delas.
  • Head of the Invisable Orthodontic Department at TMCS Dental School – Portugal

LSW Digital planning in midline recovery

Dr.Gabriela Davicino (Argentina会長)
President of the Argentine Society of lingual Orthodontic SAOL


It is important to differentiate in facial aesthetics the location of the midline, the existence or not of facial asymmetries, the deviation of the chin, the deviation of the nostrils and the real perception of the midline of the arch, determining the line of the smile, buccal corridor, and its axial inclination.
We offer different alternatives for recovery of the midline, creation of space due to dental agenesis for prosthetic rehabilitation through dental implants.
Recovery of the midline with displacement of the lower arch by means of micro implants in an initial open bite.
Through the digital planning and using the necessary mechanics, each tooth movement is exact, obtaining the optimization of the clinical case with high predictable results.
Keyword; aesthetics, asymmetry, digital planning, midline.


Dentist UNNE Northeast National University- Chaco Argentina (1987)
Dentist Specialized in Orthodontics- Maimonides University

Professional Experience
Professor at the Dental Circle of Chaco- Argentina
Private activity: Dental Clinic “MD” Chaco Argentina (1987) Owner
President of the Argentine Society of lingual Orthodontic SAOL
Co-director of the Specialty in Orthodontics UNNE.
Speaker of the Dental Circle of Chaco-Argentina.
Director of the Comprehensive Orthodontics Postgraduate Course – Universidad Chaco Austral.
National and International Speaker of Lingual Orthodontics.
Honorific Member of ABOL

Indirect bonding and direct customization with 3D-printed flexible clear resin transfer tray

Dr. Ricardo Gallardo(Chile会長)
Meritorious member of Brazilian Association of Lingual Orthodontics (ABOL)
Director of Avancée Lingual System Chile


In lingual orthodontics, accurate bracket placement is critical for success of biomechanics. Since morphology of lingual surface is irregular and variable, customization of the bracket base is essential to overcome these difficulties. Indirect bonding is so far, the best method to assure the correct placement and bonding of brackets. With the advent of 3D digital technology, customization is made from a virtual treatment (Set up) before starting the treatment.
Several indirect bonding and customization laboratory procedures have been described in the literature. Most of them consist of modifying the base of brackets either through resin pads or metal casting, both on the malocclusion models. The result is a custom base adapted to the anatomy of the teeth of the working models. Once the brackets are customized, a transfer tray is usually made up of A clear A-silicone (PVS-polyvinyl siloxane). Finally, the brackets are bonded using a fluid or relatively high viscosity resin. However, resin customization on models and the use of a A-silicone trays (PVS) constitute critical procedures that are prone to errors.
To enhance the reliability, precision, and feasibility of indirect bonding and customization, this work describes a new method of brackets customization and construction of the transfer tray by the means of a 3D-printed transfer tray in a clear flexible resin (instead of A-silicone tray). This kind of transfer tray allows a customization made directly on the teeth of the patient during bonding (instead of models).
Literature and clinical examples are presented to show that 3D-printed trays are more accurate than PVS trays and that customization made directly on the teeth of the patient has less procedure errors.


Specialty certification in Orthodontics
Université Paul Sabatier. Toulouse, France.

Master in Anthropobiology
EHESC Graduate School and University Paul Sabatier. Toulouse, France.

Complementary program in Lingual Orthodontics.
Université Paul Sabatier. Toulouse, France.

Active member of World Society of Lingual Orthodontics (WSLO). Active member of Chilean Association of Orthodontics, Chile (SORCH)
Meritorious member of Brazilian Association of Lingual Orthodontics (ABOL) Co-author of the book “New approach in lingual orthodontics” Ripano.
Co-author of the chapter “Molar distalization” in the book: “Beyond lingual orthodontics” Quintassence.

Exclusive private practice in Lingual Orthodontics Director of Avancée Lingual System Chile International speaker in lingual orthodontics

Treating Extraction Cases with InBrace

Dr. Hongsheng Tong(USA)
Chief inventor and Co-Founder of InBrace Adjunct clinical assistant professor at USC.


InBrace is a new category of customized aesthetic orthodontic solution that moves teeth by utilizing the innovative Programmed Non-sliding Mechanics (PNM). This truly invisible technology has removed the unpredictable friction as a factor and has allowed application of pre-programmed, light, and continuous forces to move teeth efficiently in all six degrees of freedom simultaneously. This presentation will review the principles of PNM and will illustrate how it is applied in treating cases that require extractions.


Dr. Tong received his orthodontic certificate and PhD in craniofacial biology from the University of Southern California (USC). He is ABO board-certified, and an adjunct clinical assistant professor at USC. He is also the chief inventor and Co-Founder of InBrace. He and his team at InBrace have been awarded multiple prestigious innovation grants of about $1Mil in total. They have also raised over $100 Million investment funds to develop and manufacture the InBrace orthodontic appliance. Dr. Tong has helped develop the InBrace clinical protocols and has provided support for InBrace providers throughout US. Dr. Tong also maintains two private offices in Southern California.

Hongsheng Tong, DDS PhD
Curriculum Vitae

BigSmile Orthodontics
3860 Grand Ave, Suite C
Chino, CA 91710


1995, 7–1998, 5
Resident Certification Advanced Orthodontic Program
University of Southern California School of Dentistry

1990, 8—2001, 5
Doctor of Philosophy
Craniofacial Biology Program, Basic Science Department
University of Southern California School of Dentistry

1987, 8–1990, 5
Master of Dental Medicine, Resident Certification
Advanced Pedodontic Program, School of Stomatology
Beijing University

1981, 8–1987, 5
Bachelor of Dental Medicine (equivalent to DDS)
School of Stomatology
Beijing University


2015, 5—present
Inventor and Co-founder/
Principal Orthodontic Scientist

1998, 7—present
Private Orthodontist, Owner
BigSmile Orthodontics

2007, 4—present
Diplomate, American Board of Orthodontics
Board Certified

2006, 7—present
Adjunct Assistant Professor of Clinical Dentistry
Faculty, Advanced Orthodontic Program
University of Southern California School of Dentistry

1998, 7—2006, 7
Managing Orthodontist
Western Dental Services Inc.
Offices in Chino, Claremont, and Fontana

2016 OneStart Americas Competition, Grand Prize Winner $150,000
2016 Innovation Coast Competition, First Place $20,000
2013 Coulter Foundation Translational Research, Grant Winner $200,000
2012 USC Ideas Empowered Program Grant, First Place $100,000
2010 Postgraduate Orthodontic Program “Instructor of the Year” USC Herman Ostrow School of Dentistry

Orthodontic appliance with snap fitted, non-sliding arch wire—utility patent granted 2016
Orthodontic appliance with tie-in, non-sliding arch wire—utility patent pending
Insertable orthodontic auxiliary appliances—patent pending
Orthodontic power arms connected to button bases—patent pending
Indirect bonding trays with bite turbo and orthodontic auxiliary integration—patent pending


Treating More Complicated Cases with InBrace
Asian Lingual Orthodontics Meeting (Virtual conference)
April 10, 2022, Seoul, South Korea

InBrace, Invisible Teeth Straightening System
Korean Association of Lingual Orthodontists 2021 (virtual conference)
April 11, 2021, Seoul, South Korea

Braces Reinvented–Programmed, Non-sliding Mechanics
Japanese Advanced Orthodontic Conference (JAOC) 2020 (virtual conference)
Feb 26-27, 2020, Tokyo, Japan

A Customized Orthodontic System that Moves Teeth without Friction—Not a Dream
8th Congress of the World Society of Lingual Orthodontics
July 5, 2019, Barcelona, Spain

INBRACE—Innovation driven by the 21st century digital technology
American Association of Orthodontists Annual Conference
May 6, 2019, Los Angeles, CA

Automation concept in Lingual Orthodontic Treatment with InBrace
2nd Taiwan Lingual Orthodontic Forum: Future Trend of Lingual Orthodontics
June 23, 2019, Taipei, Taiwan

INBRACE—An Introduction to a game changing Fixed Non-sliding Lingual Appliance
American Lingual Orthodontic Association Annual Conference
May 4, 2018, Washington DC

The Biomechanics of the Revolutionary InBrace Appliance
Academy for Orthodontic Excellence Study Club Meeting
Feb 20, 2018, Irvine, CA

Innovation in Lingual Orthodontics—a completely reengineered lingual orthodontic appliance
American Lingual Orthodontic Association Annual Conference
Sept 9, 2017, Las Vegas, NV

Early Clinical Pilot Study of an Innovative Lingual Orthodontic Appliance
Shuman Study Group Annual Meeting
Feb 14, 2017, Kuai, Hawaii

Monitoring of typodont root movement via crown superimposition of single cone-beam computed tomography and consecutive intraoral scans
US Northwest Association of Chinese Dentists Annual Conference
Nov 12, 2016, Seattle, WA

Three-dimensional monitoring of root movement during orthodontic treatment
Shuman Study Group Annual Meeting
Mar 15, 2016, Santa Barbara, CA

Mesiodistal angulation and faciolingual inclination of each whole tooth in 3-dimensional space in patients with near-normal occlusion
American Association of Orthodontists Annual Conference
Apr 26, New Orleans, USA

A new method to measure mesiodistal angulation and faciolingual inclination of each whole tooth with volumetric cone-beam computed tomography images
1st Global Chinese Oral Medical Conference
Dec 4, 2010, Fujian, China


Tong H: Case Report: How would you treat this malocclusion? PCSO Bulletin Spring 2022. In press;
Marsh K, Weissheimer A, Yin K, Chamberlain-Umanoff A, Tong H, Sameshima G: Three-dimensional assessment of virtual bracket removal for orthodontic retainers: A prospective clinical study. Am J Orthod Dentofacial Orthop. 2021 Aug., 160 (2): 302–311;

Tong H, Weissheimer A, Pham J, Lee, RJ and Redmond WR: Lingual orthodontics redefined with automation and friction-free mechanics. J Clin Orthod. 2019 Apr; 53(4): 214-224;

Pham J, Lee RJ, Weissheimer A, Sameshima GT, Tong H.: Inexpensive Orthodontic Treatment with a Prescription Custom-Base System. J Clin Orthod. 2016 Mar;50(3):149-58;

Tong H.: Generating an Ideal Virtual Setup with Three-Dimensional Crowns and Roots. J Clin Orthod. 2015 Nov;49(11):696-700;

Lee RJ, Weissheimer A, Pham J, Go L, de Menezes LM, Redmond WR, Loos JF, Sameshima GT, Tong H.: Three-dimensional monitoring of root movement during orthodontic treatment. Am J Orthod Dentofacial Orthop. 2015 Jan;147(1):132-42.

Lee RJ, Pham J, Choy M, Weissheimer A, Dougherty HL Jr, Sameshima GT, Tong H.: Monitoring of typodont root movement via crown superimposition of single cone-beam computed tomography and consecutive intraoral scans. Am J Orthod Dentofacial Orthop. 2014 Mar;145(3):399-409;

Tong H, Kwon D, Shi J, Sakai N, Enciso R, Sameshima GT.: Mesiodistal angulation and faciolingual inclination of each whole tooth in 3-dimensional space in patients with near-normal occlusion. Am J Orthod Dentofacial Orthop. 2012 May;141(5):604-17.

Tong H, Enciso R, Van Elslande D, Major PW, Sameshima GT.: A new method to measure mesiodistal angulation and faciolingual inclination of each whole tooth with volumetric cone-beam computed tomography images. Am J Orthod Dentofacial Orthop. 2012 Jul;142(1):133-43;

Tong, H-S.: Studies on Isolated Osteoclasts: mRNA Phenotyping, Regulation of Resorptive Function and Partial Characterization of a Representative cDNA Library. A Dissertation Presented to the Faculty of the Graduate School, University of Southern California, in Partial Fulfillment of the Requirement for the PhD Degree in Craniofacial Biology. May 2001;

Tong, H-S., Lin, H., Wang, H-J., Sakai, DD, Minkin, C.: Osteoclasts Respond to Parathyroid Hormone and Express mRNA for Its Receptor. J. Bone and Miner. Res.10(Suppl 1):M277, 1995.

Sakai, D., Tong, H-S, and Minkin, C.: A survey of genes expressed in osteoclasts. Bone 17(2):111-119, 1995.

Dixon, S.J., Hapak, L.K., Wiebe, S.H., Sakai, D.D., Tong, H., Minkin, C. and Sims, S.: Function and expression of transforming growth factor-ß receptors in mammalian osteoclasts. J. Bone and Miner. Res. 9(Suppl 1):S242, 1994.

Tong, H.-S., Sakai, D.D., and Minkin, C.: A molecular inventory of the osteoclast phenotype. J. Bone and Miner. Res. 9(Suppl 1):S175, 1994.

Tong, H-S., Sakai, D.D., Sims, S.M., Dixon, S.J., Yamin, M., Goldring, S., Snead, M.L. and Minkin, C.: Murine osteoclasts and spleen cell polykaryons are distinguished by mRNA phenotyping. J. Bone Miner. Res. 9:577, 1994.

Tong, H-S., Sakai, D.D., Snead, M. and Minkin, C.: Construction of cDNA Library and Molecular Phenotyping Using Small Numbers of Macrophage Cells: A Model for Osteoclast mRNA Phenotyping. J. Bone Miner. Res. 7(Suppl.1)S313, 1992

Tong, H-S and Li, Z-Y: Correlation of Mesial-Distal Tooth Width of Chinese Parents and Their Daughters: Prediction of Combined Width of Unerupted Canine and Premolars Using the Method of Parent-Daughter Regression. Master’s Thesis, 1990

1995, 5–present Member
American Association of Orthodontists (AAO)
Pacific Coast Society of Orthodontists (PCSO)
American Lingual Orthodontic Association (ALOA)


New horizons in digital lingual orthodontics

Dr. James Huang(Taiwan会長)
3rd President of Taiwan Association of Lingual Orthodontists(TALO)
Assistant professor, Ministry of Education, Taiwan


Lingual orthodontics have evolved in this dgital era and we have enjoyed many benefit from it. Precise indirect bonding is essential for comtemporary lingual orthodontic treatment and it can be divided into two crucial part :model setup and transfer jig fabrication. However,digital model setup has its precision and convenience compared with traditional manual model setup. For instance, we can evaluate arch symmetry,bolton ratio,occlual interference and possible IPR amount very fast. Besides,different treatment plan simulation and technique sensitive bracket positioning decision will be also efficient to carry out easily. Therefore,my new innovative hybrid type of indirect bonding system can be divided into two part as follows:

  1. Digital component: model setup,bracket positioning, individualized arch form template, guiding wire abutment design, then print out the 3D setup model with guiding wire abutment
  2. Manual component: real guiding wire bending with printed out digital guiding wire template, individual transfer jig fabrication with traditional Hiro and Kommon base method. Special design 3D printed out setup model also friendly if you would like to adjust tooth position and doing rebonding

Besides, we can also apply digital technique as a teaching aids in lingual orthodontic education for more cost down and reproducibility.

In summary, digital technique have broaden our working field in lingual orthodontics and give us a whole new world!

  1. MSc. of Orthodontics , National Taiwan University
  2. Active member of World Society of Lingual Orthodontics(WSLO)
  3. 3rd President of Taiwan Association of Lingual Orthodontists(TALO)
  4. Assistant professor, Ministry of Education, Taiwan
  5. Certified Orthodontic specialist, Ministry of Health and Welfare, Taiwan
  6. Former director of dental department, St.Joseph Hospital, Taiwan
  7. Former attending physician of dental department, E-Da Hospital, Taiwan

Molar space closure considerations in lingual orthodontics.

Dr. Tony Wu(TALO前会長)
The former president of the Taiwan Academy of Aesthetics Dentistry
The former president of the Taiwan Association of Lingual Orthodontics


To be more accurate and predictable for my lingual lab work is always my dream, digitalization probably will be the one of solutions. I had tried some digitalized model setup in my office since 2014, however ,we found that there were still some problems existed at that time and more software improvements were required.
In 2018, we started to treat all our lingual patients in digital way and discovered that there are several advantages comparing with the conventional manual setup.
In this presentation, I would like to talk about my experience in digitalization journey and also present some cases for explanation as well.

  • Certified orthodontist of TAO
  • Active member of World
    Society of Lingual Orthodontics
  • The former president of the Taiwan
    Academy of Aesthetics Dentistry
  • The former president of the Taiwan
    Association of Lingual Orthodontics

LOHAS : My favorite things

Dr. Minghsien Lan
Dr. Lan’s lingual orthodontic center, Taipei/Taiwan
Founding President, Taiwan Association of Lingual Orthodontists(TALO)


LOHAS is the abbreviation of “Lifestyles Of Health And Sustainability“. It means whenever you choose some tools or buy something, be sure to do it in LOHAS way. To our planet, LOHAS also means eco-friendly lifestyles.
Self-ligating lingual orthodontic appliance combining with Tads is my favorite LOHAS way to be the invisible solution of orthodontic treatments.There are several reasons:

  1. It is a kind of fixed appliance so that patient’s compliance is not critical.
  2. It is absolutely invisible and more eco-friendly comparing to aligners.
  3. It can treat almost all kinds of malocclusions, not only simple cases.
  4. It can treat orthodontic cases with quality results, or even better.
  5. It can improve patients’ profiles very well.

In this presentation, I will give some examples to explain in details. Finally, the meaning of LOHAS might be redefined as “Lingual orthodontics Of Hospitality and Simplicity.”

  1. Name: Ming-Hsien Lan
  2. Nationality: Taiwan
  3. 1987 DDS, Dental School, National Taiwan University
    1994 Certificate of orthodontics, National Taiwan University
    1994-1999 Chairman, department of Orthodontics
    Chang Gung Memorial Hospital, Taipei
    1999-Now, E-line Taiwan-Dr. Lan’s Invisible Orthodontics
  4. Membership
    Taiwan Association of Orthodontists(TAO):
    Board member, Chairman of Welfare committee, Vice Chairman of International Affairs Committee
    Taiwan Association of Lingual Orthodontists(TALO):
    Founding President, 1st President, Consultant
  5. International Membership
    American Association of Orthodontists(AAO)
    World Federal of Orthodontics(WFO)
    World Society of Lingual Orthodontics(WSLO)

Clinical Educatinal lecture

Lectures for Staff

The role of the dental hygienists in lingual orthodontics

松下 千晃様 Chiaki Matsushita
名古屋矯正歯科診療所 Nagoya Orthodontic Clinic


2003年 名古屋デンタル衛生士学院卒業

同年   医療法人日進会 名古屋矯正歯科診療所勤務

2007年 日本成人矯正歯科学会2級認定矯正歯科衛生士取得

2013年 日本成人矯正歯科学会1級認定矯正歯科衛生士取得

■演題名 リンガル矯正における歯科衛生士の役割

当院では, 初診時にリンガル矯正の特徴として, 審美性に優れている反面, 発音障害や舌の違和感や痛みが生じる可能性等について説明している. 外科的矯正治療や顎関節症, 転医の可能性がある患者には, より詳細な説明が必要である.
動的治療中には, 一般的なエッジワイズ装置に対して, アーチワイヤーの結紮方法の違いや, 抜歯空隙の閉鎖方法など, メカニクスの理解も必要である. 各部位における歯肉形態の違いや, 上下顎歯肉の反応の違いから, 歯ブラシの種類や挿入方向の工夫をしたブラッシング指導を行っている.
装置撤去時の著しい歯肉腫脹に対しては, 後日ボンディング材を撤去することが一般的である.保定中に限局した部位の炎症が継続する場合は, ボンディング剤の取り残しの可能性があるため, 歯肉溝内の確認が必要である.
このように各治療段階において, リンガル矯正の特徴を理解し, 診療に携わることが必要である. 今回はリンガル矯正の治療段階に沿って歯科衛生士の役割をご紹介させていただきます.

■Title:The role of dental hygienists in lingual orthodontics

In our clinic, we explain to our patients the aesthetic benefits, risks of speech disorder and pain of the tongue as a characteristic of lingual orthodontics at the first visit consultation. In addition, we need to explain more details if the patient has a possibility of having orthodontic surgery or TMD, also a possibility of transferring to other clinics in the future.

For active treatments, we must understand the difference in mechanism between lingual and labial orthodontics, such as ligaturing the arch wire and process of space closure of extraction space.We also give tooth-brushing instructions with different types of tooth brushes and describe inserting directions since the difference of gingival morphology of each part and the different reaction of gingiva between upper and lower jaw.

In general, when orthodontic appliances are debonded, if there is severe gingivitis, the bonding agent will be debonded at a later date. If localized inflammations continue during the retention period, we need to check their subgingival condition whether bonding agent is left.

Therefore, I believe that there is a need for dental hygienists to understand the characteristics of lingual orthodontics and participate in treatments. In this presentation, I would like to introduce the role of dental hygienists based on the steps of lingual orthodontics treatments.

Lab Work Lecture

Findings through lingual orthodontic technology until today

稲神 孝洋様 Takahiro Inagami
有限会社オーソプラネッツ Ortho Planets


2013年  3月 東海歯科医療専門学校歯科技工士科 卒業

2013年  4月 有限会社オーソプラネッツ 入社

2017年 8月 有限会社オーソプラネッツ 取締役就任

2020年10月 有限会社オーソプラネッツ 代表取締役就任


■所属学会 日本成人矯正歯科学会、日本舌側矯正歯科学会

■演題名 今までのリンガル矯正技工から見えてきたもの


■Title:Findings through lingual orthodontic technology until today

In-direct bonding is generally used for lingual bracket orthodontic treatment. In the indirect bonding method, the accuracy of the setup models and positioning trays greatly affects the treatment results. Therefore, we, dental technicians, have been making daily efforts to improve the quality of the setup models and positioning trays.
In this presentation, we will introduce the process of making the setup models and positioning trays, which is an important factor. I hope that this presentation will contribute to the further development of orthodontic technology in the future.
 In addition, I will review some of the cases in which I have fabricated setup models and positioning trays in the past, and discuss what points should be considered in the future based on the treatment results.

The SDGs for Our Lingual Labwork

後藤 光利様 Mitsutoshi Goto
株式会社アバンテック Orthodontic Labolatory Avantec Co.Ltd.






1995年株式会社アバンテックに組織改変 代表取締役


日本成人矯正歯科学会 認定矯正歯科技工士認定委員会委員長 一級認定技工士


日本矯正歯科学会 日本舌側矯正歯科学会 日本矯正歯科技工研究会 日本歯科技工士会 同歯科技工学会

近畿東海矯正歯科学会 日本臨床矯正医会賛助会員 他

演題名 リンガルラボワークとSDGs


■Title:The SDGs for Our Lingual Labwork

Currently, the number of dental technicians in Japan is drastically decreasing. The number of students enrolled in dental technician schools is decreasing every year, and the number of educational institutions closing their doors is increasing. In addition, the number of people who leave the industry after several years of employment is rapidly increasing. The reasons for this are 1) long working hours, 2) few vacations and vacations, and 3) low social status in addition to low wages. In order to solve this problem, the “Sustainable Development Goals” must be formulated, improved, and implemented as soon as possible.
The Sustainable Development Goals, adopted by the United Nations General Assembly in 2015, are 17 goals that aim to protect the human rights of all people on the earth, to eliminate discrimination and poverty with equality, to provide access to quality education, and to promote economic growth, technological innovation, job satisfaction, and health with an emphasis on the natural cycle of the environment, economy, environment, and society, This is also regarded as a universal standard of thought. In this report, we would like to discuss the SDGs initiatives using our dental laboratory work as an example, and share the necessity of dental laboratory work to contribute to the health of many people by providing sustainable and high quality orthodontic treatment using digital technology, instead of conventional dental laboratory work that relies on skilled techniques. We would like to share the necessity of dental technology to contribute to the health of many people.

Modern lingual orthodontics laboratory

藤城 洋介様 Yosuke Fujishiro
株式会社アソインターナショナル ASO International.Inc.


2000年 日本歯科大学東京短期大学 歯科技工士科卒

2000年 ㈱アソインターナショナル リンガル技工部

2004年 ㈱アソインターナショナル 江東営業所所長

演題名 最新のリンガル矯正技工

リンガル矯正治療には, セットアップモデルの作成が必須である.
私たち歯科技工士は, 矯正歯科医から指示を受け, 個々の患者さんの治療ゴールを理解したうえで歯の排列を行う. その際, 使用するワイヤーの種類やインプラントアンカー併用の有無, 治療前の歯根の位置等を確かめ, 治療ステップの歯の動きを考慮して適切なオーバーコレクションを組み込むことでチェアサイドでのワイヤーベンドによる調整を極力減らすことができる.
弊社では, 10年以上前から歯科技工のデジタル化に取り組んできた. 当初は海外ソフトウエアに頼らざるをえず, 機能面に不満があったり急な仕様変更やライセンス料の変更や,メーカーの矯正部門撤退など自社ではコントロールできない事態に頭を悩ませてきた. そこで我々はセットアップモデル作成ソフト「AI Orthoエーアイオルソ」を開発し, 運用している. 今回は, 本ソフトを使用したセットアップ作成手順をデジタル独自の利点や, 作業上の注意点をまじえながら紹介する.
また, CBCTの導入が進み, 非抜歯矯正のボーダーケースや歯槽骨の薄いシビアなケースにはCBCTから得た歯根, 歯槽骨のデータをセットアップ作成に用い, ボーンハウジングを確認しながら歯の排列をするようになった. これらは別ソフトでの作成であるが, 近年需要が高まっている分野であるので弊社での取り組みを紹介する.
また, ブラケットポジショニングとインダイレクトコア作成について, アナログ技工とフルデジタルのリンガル矯正システム「Harmony」による技工を比較しながら紹介する.
私たちは患者さんが快適で, 術者が使いやすく治療に役立つ技工を目指して様々な手法を試してきた. その中で, 現状においてベストな方法を共有し, 更なる改善点を皆様と一緒に考えていきたいと思います。

■Title:Modern lingual orthodontics laboratory

Creating a setup model is essential for lingual orthodontics.
Our technicians receive instructions from the orthodontist, understand the individual patient’s treatment goals and perform the orthodontic alignment.
We then check the type of wire to be used, the presence or absence of implant anchors, the position of the tooth roots before treatment, etc., and incorporate appropriate overcorrections considering the movement of the teeth during the treatment steps to minimize chairside wire bend adjustments.
We have been working on the digitalization of dental technology for the past 10 years.
Initially, we had to rely on foreign software, which presented several challenges for us like dissatisfaction with its functionality, sudden changes in licensing or specifications, termination of the makers’ orthodontic division, etc. Due to this, we developed the “AI Ortho” setup software which we are currently using. In this presentation, we will introduce the setup creation procedure using this software, along with its unique digital advantages and points to keep in mind when working with it.
With the introduction of CBCT, we now use the root and alveolar bone data obtained from CBCT to create setups for border line non-extraction cases as well as severe cases with thin alveolar bone, and we perform alignment while confirming bone housing. Although this is a separate software process, it is an area of increasing demand in recent years, so we would like to introduce our company’s efforts in this area.

We will also compare the analog and fully digital orthodontic techniques of bracket positioning and indirect bonding tray creation using the Harmony lingual orthodontic system.

Lingual orthodontic technology is in the transitional phase of digitalization.
We have been experimenting with various techniques to make it more comfortable for the patient, easier for the operator and more useful for the treatment. We would like to share with you our tried-and-tested best practices, and to discuss further improvements with.

Five years of digital set-up

望月 貴博様 Takahiro Mochizuki
有限会社ティエムオーソ Tm-Ortho


1995年4月 日本歯科大学付属歯科専門学校技工士科 入学

1997年3月 日本歯科大学付属歯科専門学校技工士科 卒業

1997年3月 歯科技工士免許所得

1997年4月〜2005年3月 イーライン矯正歯科および竹元矯正歯科 勤務。

2005年4月 有限会社ティエムオーソ 設立

演題名 デジタルセットアップ5年を迎えて

デジタル印象からのデジタルセットアップ ・デジタル印象からのデジタルセットアップ

■Title:5 years since the start of digital setup

 We have been using the digital setup (elinesystem) developed by Prof. Giuseppe Scuzzo of Italy since 2017, and this year is the 5th year since we started using it. On the other hand, we also continue to use the conventional analog setup.
Nowadays, the number of orthodontists using oral scanner is gradually increasing and the ordering method of the setup has changed,
In the case of digital setups
Digital setup is made from digital impression.
Digital setup is made from silicon impression.
In the case of analog setups
Analog setups are made from digital impressions.
Silicon impression to analog setup
In the analog setup, there are a wide variety of combinations, such as
In the same way that we realize the advantages of the digital setup, we are also reminded of the advantages of the analog setup. Therefore, we will discuss the features of both digital and analog setups, as well as the problems with digital technology from the perspective of the orthodontic technician.

My orthodontic technician life is a lingual orthodontic technique.

江花 照夫様 Teruo Ebana
デンタルファーム株式会社 Orthodontic Laboratory Dental Farm Co., Ltd.


1984年3月 日本歯科大学附属歯科専門学校卒業

1989年6月 矯正専門ラボラトリー デンタルファーム株式会社設立代表取締役に就任

2002年1月 唇・舌側矯正装置 インダイレクト・ボンディング・システム(E,T,I,B,S,)を発明し特許取得

2012~2017年 新東京歯科技工士学校 矯正技工担当 非常勤講師勤務

2017~2020年 DW Lingual Systems Japan 株式会社 取締役就任

2020年9月 松本歯科大学大学院にて歯学博士修得

■演題名 私の矯正歯科技工の人生は舌側矯正技工である


■Title:My orthodontic technician life is a lingual orthodontic technique.

Lingual (lingual) orthodontic treatment involves more complicated treatment processes than labial orthodontic treatment, and requires more skill and experience. These processes must lead to an esthetic result, a stable occlusion, and a goal as the orthodontist envisions. One of the most difficult and precise processes is the set-up of the prosthesis by the dental technician, which is also essential for the function and accuracy of the set-up.
I have studied lingual orthodontics for more than 25 years and have learned about orthodontics as a whole, and I have learned the difficulties of laboratory work. Now, I am enjoying my work and have done more than 5,000 setups. I also had a great experience to learn the difference of the system and the treatment process between German and Japanese setups. I am looking forward to presenting the technical skills I have gained through this valuable experience on the big stage of this conference.
I also hope that my presentation will help orthodontists in their treatment, and I would be happy if I could pass the baton to the younger generation of dental technicians.