Jung-Yul Cha is a associate dean of academic affairs, and Clinical chair at Orthodontics, Yonsei University Collega of Dentistry, where he completed his orthodontic specialty training in 2002. He was a visiting professor at the University of Southern California (2004-2005) and at Stanford University (2012-2013). He was a deputy editor of the Korean Journal of Orthodontics (KJO), and he is currently working for KAO as a secretary general. His research focuses on orthodontic treatment with CAD/CAM technology. His recent paper described accuracy of 3D printed model and indirect bonding system were published in 2018, and 2022 of AJODO as a cover issue. He continued to work with the government to establish guidelines for the clinical evaluation of customized medical devices for orthodontic treatment. Recently, he has been working as a project leader at an ISO organization to establish standards for clear aligner materials. He has published many scientific articles related to mini-implants and digital dentistry in international journal.

The frequency of congenital tooth loss is variable and high, ranging from 3 to 10%. Therefore, clinicians frequently experience orthodontic treatment for missing teeth in various locations in early childhood or adulthood. Orthodontic closure for missing teeth in the anterior and posterior regions is a process that requires patience, but is an effective alternative to bridges or dental implants. However, there is still much controversy about orthodontic closure or prosthetic restoration of missing anterior teeth from an aesthetic or functional perspective. Even if sufficient space is secured for prosthetic treatment, restoration treatment may require several years of maintenance, and additional orthodontic treatment may be necessary due to incomplete retention of regained space. Additionally, if orthodontic space recovery fails to induce sufficient bone in the edentulous area, additional bone grafting may be necessary. Therefore, when considering orthodontic space closure for the missing tooth area, the characteristics of the facial profile, the morphological characteristics of the tooth to be replaced, and the periodontal tissue of the missing area must be taken into consideration. Ultimately, for successful and efficient space control, early diagnosis and treatment plan establishment are necessary. Recently, space closure using skeletal anchors has become a more predictable treatment option and can be effectively used to treat midline deviation misalignment due to unilateral tooth loss, which often occurs. In this lecture, speaker will describe the clinical application of mini-implants for stable and efficient space closure of edentulous ridge area with a controlled movement of target tooth. In addition, we will learn biomechanical considerations of mini implants’ design from clinical cases.

Dr. Chang earned his Doctor of Dental Surgery (DDS) degree from the School of Dentistry at National Taiwan University in 1996. He went on to receive his Certificate in Orthodontics from the National Taiwan University Hospital in 2003, and later completed his Master of Science degree at the Graduate Institute of Clinical Dentistry, National Taiwan University in 2005. Dr. Kelvin Wen-Chung Chang is currently the Associate Editor of APOS Trends in Orthodontics since 2020. He has served as the Chairman of the Education Committee of the Taiwan Association of Orthodontists from 2020 to 2024, and previously held the position of Chairman of the Academic Committee from 2016 to 2020 within the same association. He is also an Advisor of the World Implant Orthodontic Association (WIOA) since 2016, and served as its Secretary General from 2014 to 2016. Dr. Chang has been in private orthodontic practice in Hsinchu, Taiwan, since 2007. He also holds a teaching position as an Adjunct Clinical Instructor in the Department of Orthodontics at the National Taiwan University Hospital since 2004. His main research interests include biomechanics, temporary anchorage devices (TADs), interdisciplinary treatment, aesthetic dentistry, and digital orthodontics.

There are various types of dentoalveolar protrusion, and each category is characterized by different facial appearance. To achieve the ultimate facial esthetics, we must move incisors precisely and according to various situations and requirements.
First, we must make a differential diagnosis to identify the relationship between alveolar bone and incisor inclination. Then, the proper tooth movement can be planned. It could be translation, tipping or root movement. Second, dentoalveolar protrusion is a sagittal problem, but we can find it in a patient with vertical or transverse problems as well. We should analyze our patients in three-dimensional because problems in different dimensions are affected and interact with each other. Third, what’s the proper treatment sequence to treat a patient with all these three-dimensional problems?
When we can evaluate patients from 2D to 3D and analyze them from dental to skeletal, a comprehensive treatment plan and ideal treatment result can be achieved!

Dr. Chooryung Judi Chung is currently working as a professor and chair at the Department of Orthodontics, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Korea. She received her DDS from Yonsei University and her orthodontic training and Ph.D at Tokyo Medical and Dental University, Tokyo, Japan. She was a visiting scholar at University of North Carolina at Chapel Hill, USA. Her clinical and research interests include the clinical application of TADs, digital orthodontics and interdisciplinary treatment for adults.
She is the Director of Education of, Korean Association of Orthodontists, Advisory committee member of the World Implant Orthodontic Association and the Secretary general of the Korean Cleft lip and Palate Association.

Treatment of Class III malocclusion is considered one of the most difficult topics in the field of clinical orthodontics. Proper diagnosis based on etiology, selection of growth modification mechanics with proper timing for intervention as well as long-term monitoring is necessary to overcome the difficulties. Thankfully, recent development of dentofacial orthopedics, such as maxillary expansion, clock or counterclockwise rotation of the mandible, full arch vertical control etc. even for the adult has broadened the non-surgical scope of controlling Skeletal Class III malocclusion.
This lecture will provide an overview and clinical tips of non-surgical correction of Skeletal Class III of all ages. Hard and soft tissue esthetic outcomes following various dentofacial orthopedic approach for growth modification as well as for adults to improve skeletal Class III along with long term retention will be presented.

Dr. Kim is a Professor and Head of the Department of Orthodontics School of Dentistry, Kyung Hee University. He is also a visiting associate professor of Department of Orthodontics, Saint Louis University, Visiting Professor and Honorary Head, Department of Orthodontics, National Hospital of Odontology and Stomatology in Hochiminh City Vietnam, Orthodontic Expert, Harbin City 2nd Hospital, Harbin, China, and Clinical Adjunct Professor, Dalian Medical University, China. Dr. Kim obtained an Orthodontic certificate and MS in Department of Orthodontics, School of Dentistry at the Kyung Hee University, Seoul, Korea, and PhD in Department of Orthodontics, School of Dentistry at the Seoul National University, Seoul, Korea. He was the volunteer faculty of the Division of Orthodontics, Department of Orofacial Sciences at University of California, San Francisco (UCSF). Dr Kim was selected as one of 100 Top Authors of 100 year of the American Journal of Orthodontics and Dentofacial Orthopedics (AJODO) in 2015. One of his research papers (Angle Orthod 2015; 85: 253-262) was named as winner of the 2017 Edward H Angle Research Prize as the best paper published in The Angle Orthodontist. Dr. Kim has lectured and published nationally and internationally on temporary skeletal anchorage devices (mini-implant and miniplate), corticotomy related orthodontics Digital Orthodontics, and Biocreaetive Orthodontics Strategy (BOS). He is the author of ten international textbooks and over 170 international and domestic scientific articles about this topic.

The tooth-bone-borne expander, known as Mini-screw Assisted Rapid Palatal Expansion (MARPE), has been introduced to overcome the shortcomings of tooth-borne expander, such as buccal flaring and root resorption of anchor teeth and frequent failure in mid-palatal suture (MPS) opening in late teen or elderly patients. In MARPE, the jackscrew is activated rapidly daily. The MARPE with a jackscrew does not store force within its internal structure; instead, it immediately transmits the force to the mini-screws or teeth connected to the expander after activation. If the MPS and CMS do not respond well, the transmitted force to the periodontium can cause bending of the alveolar bone or tipping of the anchor teeth, eventually leading to the aforementioned side effect.s To overcome the limitation of hyrax-expansion screw assisted MARPE, The ATOZ maxillary skeletal expander (The ATOZ), bone borne only MARPE was developed as an orthodontic appliance that can induce physiologic sutural distraction osteogenesis at the MPS and grow the maxillary apical base without involving dental anchorage due to its orthopedic springback property. This unique parabolic rate of expansion is caused by the pan-type movement of the four-link system. With this characteristic, the ATOZ exhibits a rapid expansion rate initially, which gradually slows down towards the end of the activation process. Such mechanical characteristics allow for the accumulation of sufficient force to activate the MPS and CMS with minimal rotation initially. Through this presentation, the speaker wants to introduce this new type of MARPE, the ATOZ, and compare treatment effects, success rate, basal arch width changes, and periodontal changes between conventional tooth bone borne MARPE with scientific evidence and related clinical case reports.

Ki Beom Kim is a distinguished Professor in the Department of Orthodontics and the Center for Advanced Dental Education at Saint Louis University. He holds a DDS and MSD, specializing in Oral Medicine, and a PhD in Orofacial Pain from Dankook University (Korea). He also completed an Orthodontics program at Vanderbilt University, USA.
Professor Ki Beom Kim has held various academic positions, including faculty lecturer at Dankook University and Nova Southeastern University, before becoming Professor and Program Director of Orthodontics at Saint Louis University.
Professor Ki Beom Kim is Chair of the Council on Orthodontic Education, American Association of Orthodontists. He is also an active member of several professional organizations, both in Korea and the United States, holding leadership positions in association like the Korean Association of Digital Orthodontics (Founding Member) and the American Association of Orthodontists’ Council on Orthodontic Education (Chair).
He has supervised numerous Master’s theses focusing on various aspects of orthodontics and serves on dissertation committees. He has published 3 textbooks, hundreds of articles in reputable journals, and lectured over 100 presentation in South Korea, Singapore, the United States, Brazil, Germany, etc.
His academic excellence is recognized through numerous awards from the American Association of Orthodontists Foundation and Saint Louis University, including multiple Faculty Development and Teaching Fellowships, and Instructor of the Year awards.

Maxillomandibular Advancement (MMA) is widely regarded as the most effective surgical intervention for adult obstructive sleep apnea (OSA). However, successful MMA often requires concurrent maxillary expansion to optimize airway enlargement. A major limitation in this process is the mandibular arch, as conventional archwire expansion to increase intercanine width is biomechanically unstable and prone to relapse.
Mandibular Midline Distraction Osteogenesis (MSDO) presents a promising solution for patients with severe mandibular transverse deficiencies. By gradually expanding the mandibular symphysis through controlled osteogenic traction, MSDO facilitates improved occlusal relationships and enhanced airway dimensions, complementing the effects of MMA.
This presentation will explore the biomechanical principles, surgical techniques, and clinical outcomes of MSDO in conjunction with MMA, providing insights into how this approach can improve the management of adult OSA patients with significant transverse discrepancies. Current evidence, case studies, and practical considerations will be discussed to highlight the potential of maxillomandibular expansion as a transformative strategy in OSA treatment.
Learning Objectives:
1. Understandthevarioustypesofmandibularmidlinedistractionappliancesand their indications.
2. Analyzethedentalandskeletaleffectsofmaxillomandibularexpansiononairway improvement.
3. DevelopcomprehensivetreatmentstrategiesincorporatingMSDOandMMAto enhance surgical outcomes in adult OSA patients.

Dr. Kee-Joon Lee is a professor of the Department of Orthodontics, Yonsei University College of Dentistry, Seoul, Korea. He received DDS and PhD degree at the Graduate school, College of Dentistry, Yonsei University. He completed the orthodontics specialty training in Yonsei University Dental Hospital. He was a visiting scholar at the Department of Biochemistry, University of Pennsylvania School of Dental Medicine in 2002-2004 and at the Division of Plastic Surgery, the Children’s Hospital of Philadelphia in 2010-2011. He was an adjunct professor at the Department of Orthodontics, University of Pennsylvania between 2016 and 2019 and at Temple University between 2010 and 2011. He has contributed many book chapters on biomechanics of miniscrew-driven orthodontics, non-extraction treatment in adults, up-to-date lingual orthodontic mechanics and surgery-first approached using TADs. He is the first who demonstrated the miniscrew-assisted rapid palatal expander (MARPE) for adults in AJO-DO, which was cited by many other authors. He has published many articles and case reports regarding the treatment of non-eruption, and total arch movement for hyperdivergent face in orthodontic journals including two cover issues in AJO-DO. His fields in research include clinical biomechanics regarding TADs application and the suture and bone responses to orthodontic stimulus. He has served as a reviewer in major orthodontic journals, including AJO-DO, Angle Orthodontists and European Journal of Orthodontics. He has been invited to many international orthodontic conferences around the world.

Transverse discrepancy is now well recognized by majority of orthodontists. A miniscrew-assisted rapid palatal expander (MARPE) has been considered an only solution for orthopedic expansion in adults. However, activation of the jackscrew is largely challenging without someone else’s assistance. Moreover, according to the latest clinical studies, it is now known that the non-surgical orthopedic expansion is not always successful. In order to overcome currently known limitation, technical innovations as well as complete understanding on the biomechanics of orthopedic expansion are crucial. According to our research series, some interesting findings are noted. In this presentation, a new idea on the self-activation of the MARPE will be introduced. A relevant appliance designs such as prominence of the jackscrew body, guide hole and hexagonal screw keys will be explained based on the biomechanical standpoint. Reinforcement of key structure for maximum success in adult males will be shown. For the unsuccessful cases, a remedy for the arch constriction of the counterpart is necessary. The ‘teardrop’ archwire is easily fabricated on the chairside and is expected to transduce constriction force to the rearmost molar. The rationale of the archwire will be explained based on ‘force-driven approach’. Simple hands-on practice for the installation and activation of the MARPE, along with the fabrication of the archwire using a modified archwire turret will help participants’ understanding on the force system.

Current Associate Professor, Graduate Institute of Craniofacial Medicine, Chang Gung University, Taoyaun, Taiwan
Current Vice superintendent, DentWay International Dental Hospital, Taipei, Taiwan
Honorary Member, Bangladesh Orthodontic Society, 2017~
Honorary Member, Egyptian Orthodontic Society, 2018~
Honorary Member, South African Society of Orthodontists, 2018~
Honorary Member, Thai Association of Orthodontists, 2020~
The 100 Most-cited Articles in Orthodontics (20 out of the 100 articles), published by Angle Orthodontists, Angle Orthod. 2018 Nov; 88(6): 785–796. Published online 2018 Aug 13. doi: 10.2319/012418-65.1
World’s Top 2% Scientists with Single Year impacts in 2022, jointly published by Elsevier BV and Stanford University, 2022 (released in 2023)
Recipient of the 2023 Paul Herren Award, given by the University of Bern, Bern, Switzerland, 2023

To manage chin projection and chin height (soft tissue Me to lip-line) in Class III adult patients has been a highly demanding task in orthodontics. Bite raiser/block/turbo and intermaxillary vertical elastics is one of the techniques for decreasing chin projection through orthodontic backward repositioning of mandible by extrusion of upper and lower dentitions. Due to the extrusion of lower dentition, this technique also increases the lower facial height and chin height. The increase of chin height gives a slender facial appearance and could be beneficial for a Class III low angle square face. On the contrast, this could alleviate lower incisor display, lip incompetence, and excessive chin height appearance in Class III high angle long face patients. The purpose of this presentation is to propose a possible solution to decrease the chin height by lower anterior intrusion with TADs.

Dr. Ju-Young Lee is a lecturer, teaching about Temporary Skeletal Anchorage Device (TAD) and has endeavored to expand the clinical scope of TADs usage for over 20 years. He has shared his experience, teaching orthodontic residents at four different Universities in South Korea. From 2005 to 2015, Dr. Lee was an Adjunct Associate Professor at Loma Linda University, California, USA. He has also given TAD lectures at annual meetings of American Association of Orthodontists(AAO), World Implant Orthodontic Conference (WIOC), Federation Francaise d’Orthodontie(FFO) and Korean Association of Orthodontists (KAO).
Dr. Lee earned his DDS degree graduating from Dankook University in South Korea in 1986. Then, he finished his orthodontic residency program obtaining MDS degree in 1989 and received his PhD degree in 1997. Dr. Lee was a president and currently an advisor of the Korean Society of Digital Orthodontists. He has served as a chief director of Plus 1 Orthodontics since 1992.

Despite the favorable positioning of the anterior teeth, there are instances where considerable space remains after extraction. When this space is left asymmetrically, the situation becomes increasingly complex. If it is necessary to close the spaces created by the congenital absence of premolars or the early loss of molars without altering the position of the anterior teeth, what methods may be employed? In cases where unilateral extraction of a premolar is required or when the absence of anterior teeth leads to an asymmetrical occlusion, how can we achieve balance of the dental arch and occlusion? If we can stably control the position of the anterior teeth while allowing for effective movement of the molars, we can treat various challenging situations with greater ease.

The application of simple forces to move teeth using Temporary Anchorage Devices (TADs) can sometimes result in highly unfavorable biomechanics. While applying forces symmetrically may mitigate some issues, unilateral force application can disrupt the balance of the teeth or the dental arch, leading to adverse effects.

By connecting TADs with arch wires and three-dimensionally modulating the forces exerted by the TADs for stabilization, these side effects can be minimized, facilitating much easier adjustments of both anterior and posterior teeth. I would like to introduce a novel treatment approach to achieve well-controlled forces and present various clinical cases utilizing this method.

Dr. B. Giuliano Maino is Post Graduated Clinical Training in Orthodontics at Boston University.
He is Visiting Professor in Orthodontics at Ferrara University
President WIOA, World Implant Orthodontic Association
Past President SIDO, Italian Society of Orthodontics 2020
Past President AIdOr, Italian Academy of Orthodontics 2011
Past President ASIO, Italian Association Orthodontics Specialist 2002
Active Member AAO, American Association of Orthodontics
Active Member SIdP, Italian Society of Periodontology
Lecturer in Orthodontics in Italy, Europe, USA, Asia, Africa, Australia
Recipient of AJODO BF. And Helen E.Dewel award for best clinical research paper (2009)
Diplomate European Board of Orthodontics
Diplomate Italian Board of Orthodontics
 

The maxilla is extremely important in smile aesthetics.
Its correct position in the three plane of space and adequate transverse width are among the most important quality components in achieving facial harmony.
The ability to intervene on this component without the need major surgery is an important assist for the orthodontist.
In this presentation, we will show how, using three-dimensional MAPA GPS and Bone Driven appliances, it is possible to intervene on this components with high predictability.
Another objective of this presentation is to to illustrate the biomechanical advantages of the latest innovations.

Dr. Ravindra Nanda is Professor Emeritus and former Head of Division of Orthodontics, University of Connecticut, Farmington, U.S.A. Currently, he is also Adjunct Professor at The ADA Forsyth Institute, Cambridge, MA.

He has authored with his colleagues more than 300 scientific papers. He is Editor-in-Chief of Progress in Orthodontics. He is also an associate editor of Journal of Clinical Orthodontics.

He is the Past President of North Atlantic Component of Angle Society. He is an Honorary Fellow of WFO. He has given prestigious Mershon Lecture and Angle Heritage Award Lecture at American Association of Orthodontics and Sheldon Friel Lecture at 2011 EOS Congress. He has been recognized with various awards from numerous international orthodontic organizations including honorary memberships.
He has worked extensively in various areas of orthodontics including biomechanics, temporary anchorage devices and on improving orthodontic care. He is highly sought after speaker at national and international orthodontic organizations.

This presentation will discuss treatment of dental and or skeletal open bite malocclusions with TADs. Evidence Based information will be presented regarding best sites for TAD placement based on various malocclusions. Openbites treated with inftazygomatic , buccal shelf and palatal TADS will be discussed as regards to Biomechanics, outcomes and stability.

Dr. Peter Wing Hong Ngan, D.M.D., is the Branson-Maddrell Endowed Professor and Chair of the Department of Orthodontics at West Virginia University. He earned his dental degree from Harvard University and received advanced specialty training in Orthodontics, Pediatric Dentistry, and Hospital Dentistry at the University of Pennsylvania and the Children’s Hospital of Philadelphia. Dr. Ngan is board-certified in both Orthodontics and Pediatric Dentistry.
He has held esteemed academic positions internationally, including Honorary Professor at the University of Hong Kong and Guest Professor at Wuhan University. Dr. Ngan is an active contributor to orthodontic research, with over 170 peer-reviewed papers and service on editorial boards of top journals. His research focuses on early treatment, dentofacial orthopedics, growth and development, and adult interdisciplinary care.
A renowned international speaker, he has delivered keynote lectures in over 40 countries, including prestigious talks like the PR Begg Memorial Lecture and Jacob A. Salzmann Memorial Lecture. Dr. Ngan is a Fellow of the American College of Dentists, International College of Dentists, and Pierre Fauchard Academy. He has received multiple accolades for his academic contributions, including Distinguished Faculty Awards from both Ohio State University and West Virginia University.

This presentation will address the indications and timing for orthopedic treatment of Class III patients with the help of skeletal anchorage (TADs). The age factor, growth pattern, the severity of the malocclusion, and the design of MARPE appliance affect the orthodontic and orthopedic treatment outcome. Long-term treatment records will be presented to illustrate the stability after early orthopedic treatment.
LECTURE LEARNING OBJECTIVES
– Recognize the importance of indications and timing for treatment of Class III patients with orthopedic protraction
– Determine how the age factor, growth pattern, the severity of the malocclusion and the design of the MARPE appliance can affect the orthodontic and orthopedic treatment outcome
– Identify the factors that affect the stability of early transverse and Class III orthopedic treatment

2015. – present: Professor Emeritus Dept. of Orthodontics, College of Dentistry, Yonsei University Seoul, Korea. ( Private practice ) Yonsei Beautiful Friends Orthodontic Center.
1981 – 2015. Professor, Dept. of Orthodontics, College of Dentistry, Yonsei University, Seoul, Korea.
2009 – 2012: President, World Implant Orthodontic Association
2004 – 2008: Dean, College of Dentistry, Yonsei University, Seoul, KOREA
2000 – 2002: President, Korean Association of Orthodontists
1998 – 1999: Visiting Professor, Dept. of Orthodontics University of British Columbia, Vancouber, CANADA
1984 – 1985: Visiting Assistant Professor, Dept. of Orthodontics University of Connecticut, U. S .A.

Non-extraction treatment in contemporary orthodontics does not simply mean an arbitrary alignment of teeth with no extraction. While deficiency of space is a common reason for extraction, incisor flaring, lateral (transverse) expansion and molar distalization have been commonly recruited for non-extraction treatment. Non-extraction treatment in contemporary orthodontics does not simply mean an arbitrary alignment of teeth with no extraction. While deficiency of space is a common reason for extraction, incisor flaring, lateral (transverse) expansion and molar distalization have been commonly recruited for non-extraction treatment. A clinician may choose one or more modalities depending on the patient’s status and demands. It has to be remembered that each modality has strengths and limitations. Predictability of the treatment outcome is important especially in making the decision between extraction (of premolars) and non-extraction. In this presentation the diagnosis and treatment modality with the strategic use of mini screw, will be introduced for non-extraction treatment. Additionally, clinical tips to overcome the limitation of the non-extraction treatment will be presented with the treated cases

Dr. Uribe received his Master‘s degree and Certificate in Orthodontics from the University of Connecticut after receiving his DDS degree from the CES University in Medellin, Colombia. He also completed a 3- year residency and fellowship program at the Advanced Education in General Dentistry Program at the University of Connecticut. Dr. Uribe is a Full-time Professor, Program Director, and Chair of the Department of Orthodontics at UConn. Dr. Uribe is also a Honorary Professor of The University of Jordan. He is a Diplomate of the American Board of Orthodontics and member of the Edward H Angle Society of Orthodontists. He was a member of the Council of Scientific Affairs for the American Association of Orthodontists (AAO) and is part of the committee implementing practice-based research networks for the AAO. Dr. Uribe is a section editor of the Book Temporary Anchorage Devices in Orthodontics, co-editor of the book Atlas of Complex Orthodontics and of the new edition of Temporary Anchorage Devices in Orthodontics. Dr. Uribe has authored and coauthored numerous book chapters and articles in peer-reviewed journals. He is a past recipient of the Biomedical Research Award from the AAO Foundation in 2012 and 2019. Dr. Uribe holds the Ravi Nanda Endowed Chair at the University of Connecticut.

Symmetry is a fundamental and quantifiable characteristic in facial esthetics. Facial asymmetry can manifest as a result of different environmental and hereditary factors with effects both in the skeleton and the dentition. Appropriate treatment relies in an adequate diagnosis of the skeletal and dental components involved. Determination pitch, yaw, and roll deviations in the maxilla and mandible are critical in the diagnosis and consequently the treatment. Orthodontic treatment addresses asymmetries with a dental etiology and mild to moderate skeletal asymmetries. TADs facilitate orthodontic treatment of asymmetries by allowing control of the occlusal planes and anteroposterior movements of the buccal segments. This lecture will illustrate a continuum of approaches to address facial asymmetry, from non-surgical treatment to varying levels of minimal surgical intervention.

Professor Nikhilesh R Vaid is the President of the World Federation of Orthodontists and Editor in Chief of “Seminars in Orthodontics”. He is an Adjunct Professor at Saveetha Dental College in Chennai, India and has a Private Practice in Dubai and in Mumbai, India. He has widely published and edited journals including the “Seminars in Orthodontics” on five occasions and was the Editor in Chief of “ APOS Trends in Orthodontics” from 2010-20. He’s currently EIC- Emeritus of the same. He’s an active member of the Angle Society – North Atlantic component. He’s published more than 170 peer reviewed papers and text book chapters and has lectured in more than 55 countries around the world. The important forums at which he has lectured include the AAO Annual Sessions, the International Orthodontic Congresses,ALADA,AOS,APOS and many more. Prof Vaid’s current areas of interest are Evidence Based Decision Making,Technology,Aligners,Orthodontic Rx effects and Management Protocols. He is passionate about Bollywood, Modern Indian Art,Cricket, Single Malt Whiskies and of-course Orthodontics. His mission is to encourage global collaboration in the profession through leadership, advocacy and voluntary service towards professional societies.

Clear aligners represent the most debated infusion of technology into orthodontics, commanding a significant portion of the commercial market. However, data indicates that plastic aligners alone cannot resolve all variants of malocclusion typically treated in our specialty. With discrepancies between predicted and actual clinical outcomes exceeding 50%, midcourse corrections and additional interventions often become necessary.This lecture, inspired by the ‘Golden Circle Model,’ delves into the ‘WHY, HOW, and WHAT’ of using creative and customized adjuncts with Clear Aligner Therapy (CAT). We will explore innovative solutions such as the bootstrap, mini pin-supported mesialization or distalization, Yin-Yang attachments, Beneslider, Mesialslider, BMX Expander, and CAD/CAM-based designs. These adjuncts can either complement aligners concurrently or be used in a preparatory phase, depending on the required tooth movements. Sir Isaac Newton once said, ‘Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.’ By judiciously incorporating these adjuncts, clinicians can significantly expand the range of malocclusions successfully managed by CAT, achieving more predictable and efficient outcomes. Join us to explore these cutting-edge advancements and refine your approach to aligner treatment planning.

Dr. Wilmes completed his postgraduate training in oral surgery at the Department of Maxillofacial Surgery at the University of Muenster, Germany. Following this, he pursued a postgraduate degree in orthodontics and dentofacial orthopaedics at the University of Duesseldorf, Germany. In 2013, he was appointed as a Professor at the Department of Orthodontics at the University of Duesseldorf. With over 200 published articles and textbook chapters to his name, Dr. Wilmes is a prolific author. He serves as a reviewer for numerous esteemed journals and has delivered more than 300 lectures and courses in 70 different countries worldwide. Dr. Wilmes specializes in digital orthodontics and is particularly interested in exploring new CAD/CAM technologies for non-compliant and invisible orthodontic treatment strategies, such as TADs (Temporary Anchorage Devices), lingual braces and aligners. He has contributed significantly to the field with his invention of various innovative treatment modalities, including mini-implant borne expansion (MARPE), Hybrid Hyrax, Mesialslider, Beneslider, and the Benefit mini-implant system. Recognizing his outstanding contributions, Dr. Wilmes has received several prestigious awards throughout his career. These include the First Prize of the German Orthodontic Society in 2007, the First Prize of the European Orthodontic Society in 2009, the First Prize of the German Society for Lingual Orthodontics in 2018, and the Award of the International Academy of Clear Aligners in 2019. Dr. Wilmes serves as an Editorial Board Member for various international journals, including the Journal of Clinical Orthodontics, Bioengineering, the Journal of the Asian Pacific Orthodontic Society, the Thai Journal of Orthodontics, and the Journal of Aligner Orthodontics. Additionally, he holds active membership in the Angle Society (Eastern Component).

An increasing number of patients seek orthodontic treatment with aligner therapy. However, bodily tooth movement with aligner therapy is challenging when relying on aligners alone. Whilst there are limited reports of successful bodily molar movements of up to 1-2 mm in the literature, a very long treatment time and high level of patient compliance and is expected. Moreover, the potential side effects of intermaxillary elastics must be considered in terms of shift of the anchorage teeth; this might be a severe problem especially in unilateral elastics applications with the potential for development of a midline shift, arch rotation and a jaw discrepancy, and transverse occlusal canting. To avoid this anchorage loss and the high demand on elastic wear, orthodontic mini-implants may be used. The anterior palate provides excellent conditions for the insertion and stability of skeletal anchorage devices, as the amount and quality of the available bone is far superior. In this lecture, the combination of mini-implant-borne appliances and aligners is presented to achieve more predictable and faster results in aligner therapy.

Dr. Yoon Jeong Choi is a Professor in the Department of Orthodontics at Yonsei University College of Dentistry. She received her DDS (2002), MSD (2005), and Ph.D. (2009) from Yonsei University, and completed her orthodontic residency at Yonsei University Dental Hospital. She began her academic career as a Clinical Assistant Professor at Gangnam Severance Hospital.
From 2008 to 2015, she served as Assistant and then Associate Professor at Yonsei. Between 2020 and 2022, Dr. Choi held the role of Vice Dean of Student Affairs and was promoted to full Professor in 2022. Currently, she is a Visiting Scholar at Stanford University School of Medicine (2023–2024), focusing on pediatric craniofacial orthodontics, airway management, and dental sleep medicine.
Dr. Choi is an active member of multiple professional organizations, including the Korean Association of Orthodontists, American Association of Orthodontists, and the Korean Dental Sleep Medicine Society. She also serves as Associate Editor for the Korean Journal of Orthodontics. Her clinical specialties include temporomandibular joint (TMD)-related malocclusion, anterior open-bite, and growth modification.

Excessive vertical dimension, often observed in anterior open bites, gummy smiles, or lip incompetence, can result not only in an elongated, unbalanced facial appearance but also in complications such as dry mouth and periodontal deterioration. By employing total arch intrusion, clinicians can decrease anterior facial height, refine overall facial esthetics, correct gummy smiles, and encourage lip closure—ultimately achieving a more natural lip profile. This approach also supports improved periodontal health.

Treatment should be tailored to the unique needs of each malocclusion. Total arch intrusion, which induces a counterclockwise rotation of the mandible, is particularly effective for addressing Class II malocclusions, though it presents challenges in Class III cases. Additionally, the intrinsic distalization effect of miniscrew-supported intrusion simplifies treatments that require backward tooth movement compared to those needing forward tooth movement.

This presentation will feature a range of clinical cases demonstrating how vertical control can be applied to manage long face syndrome, lip incompetence, gummy smiles, and gingival recession. Special attention will be given to individualized strategies for different malocclusion types, highlighting the dual benefits of enhanced esthetics and improved function.

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, FAS Aligners, Incognito and Win, and performs all the available aligner and lingual techniques. Since February 2015 has been working at the Harley Street Orthodontic Clinic in London for lingual treatments and at Inline Orthodontics, Stevenage, UK till present time.
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.

The present orthodontic lecture will show the tools, techniques and confidence to immediately treat moderate to difficult cases with the appropriate biomechanics combining TADs and Invisible Braces. You will learn about the fundamental bases of invisible orthodontics and understand the importance of biomechanics in the various treatment phases with TADs.
You will learn the importance of interdisciplinary treatments, a careful diagnosis and how to screen your patients to select those cases suitable for a multidisciplinary approach with or without mini-implants, and with or without extractions.
You will understand the actual archwire sequences in the different malocclusions, providing therapeutical concepts and clinical tips for each clinical situation, especially in the management of anchorage control and extraction cases. You will see how invisible orthodontics has changed its mechanics since the introduction of cortical anchorage and TADs.

As qualified specialist in orthodontics, I have been practicing in private practice since 1999 in Saint Louis, France (68). Former clinical assistant at the Faculty of Strasbourg, and former assistant at the University of Basel, member of several orthodontic societies (including the french orthodontic sosiety SFODF of which I was a member of the administration committee in 2019 until 2023), I am also a member of the editorial comittee (associate editor) of the journal “L’Orthodontie Française”, and actual President of the orthodontic association “AORS” ( Orthodontic Association of the Upper Rhine), sort of big regional “study group”.
Having discovered skeletal anchors at the AAO meeting in Chicago in 2000, the theme of bone anchorages fascinated me to the point of devoting a lot of time and energy to it. This has resulted in a few publications, numerous national and international conferences, the creation of a new supra structure screwed onto the head of the anchors
I was also the president of the first entirely virtual orthodontic meeting in orthodontics in 2019 (IVOC : International Virtual Orthodontic Conference) only dedicated to Tad’s.

Can we use and re use the same skeletal anchorages for different malocclusions for the same patient ?
Multipurpose miniscrews are an alternative to manage canine disimpaction, molar distalization, overjet, and overbite corrections successively or simultaneously. This new easy system showing us a new generation of appliances (“fixed and removable” or “remoavable and fixed”), increases not only quality of treatment by good control of anchorage, but also avoids wasted time during the treatment of our young growing adolescent patient.

Vice-dean of Dentistry (Research) and Program Director of Orthodontics at University of Puthisatra, Phnom Penh, Cambodia
EDUCATION
DEGREES:
– Ph.D. in Oral Biology from Thammasat University, Thailand (August, 2024)
– Masters in Orthodontics (MSc) by Research from the University of Bolton, United
Kingdom (October, 2022)
ORGANIZATIONAL POSITIONS
– International Dental Ambassador- Royal College of Surgeons of Edinburgh 2022-2026
– Fellow and Surgical Advisor- Royal College of Surgeons England 2022-2025
– Council Member- South East Asia Association for Dental Education (SEAADE)-2022-24
– Council Member- IADR SEA Division (2021-25)
– Member, Mentorship Committee- American Academy of Orofacial Pain (AAOP),
– Member, Planning Committee- American Academy of Orofacial Pain (AAOP),
– Section Chair- Pierre Fauchard Academy Cambodia section (2022-2025)
– Deputy Regent- International College of Dentists, Cambodia Section (2021-2025)

Over the last few years, the use of Artificial intelligence (AI) has helped reduce financial expenses, time, dependence on human expertise, and medical errors.

Artificial Intelligence allows Orthodontists to examine, collect, organize, and catalog data, which can be utilized to help find patterns. Once these patterns are identified, predictive algorithms can analyze the data and deliver potential outcomes in various situations. AI can be beneficial when possible outcomes are limited, computational calculations cannot be relied on, or human explainability is essential.

However, in orthodontics, problems such as malocclusions and associated anomalies are often complex and have many variables. Building a model based on a limited set of rules is challenging in such situations. That is why a wide variety of data is utilized to ensure we get the best possible outcomes to aid decision-making.

When we discuss the potential AI applications in the field of orthodontics, the following areas come to the forefront:

(1) Diagnosis and treatment planning

(2) Automated anatomic landmark detection and/or analyses,

(3) Predictive analytics

(4) Evaluation of treatment and oral health outcomes

(5) AI based Teleorthodontics

(6) Enhanced orthodontic consultations using AR/VR/XR

Diagnosis remains the cornerstone of successful orthodontic treatment. However, few tools exist to lead patients and clinicians out of the uncertainty of decision-making. Automated softwares allow records to be organized and analyzed to make treatment decisions.

There are many softwares that can be utilized for the evaluation and comparison of treatment outcomes and improvement in oral health, especially in cases with severe crowding and compromised periodontal health.

AI is here to stay and we will find its presence increasing each day in our clinics so we must learn to adapt, utilize and provide better treatment outcomes to our patients.

DDS, Seoul National University, College of Dentistry
MS, New York University, College of Dentistry
PhD, Seoul National University, College of Dentistry
Certificate, Advanced Education in Prosthodontics, New York University, College of Dentistry
Adjunct Professor, Seoul National University Dental Hospital, Dept of Periodontology
Immediate Past president of Korean Academy of Esthetic Dentistry
Vice president of Asian Academy of Aesthetic Dentistry
Author, The Answer is COVAN; Harmony of stomatognathic

The existing orthodontic treatments mainly focused on improving malocclusion in mixed or permanent dentition. However, with the popularization of implant treatments and the rapid increase in orthodontic treatments for middle-aged patients, there has been a rise in an interdiscplinary treatments such as orthodontic-prosthetic combined treatment, , periodontal-prosthetic-orthodontic combined treatment, and implant-orthodontic combined treatments, and so on.

Interdisciplinary denta treatment is the ultimate treatment performed by dentists. Through well-planned interdisciplinary orthodontic treatments, patients not only recover functional aspects but also achieve an aesthetically pleasing smile and face. This can significantly transform their lives, bringing an unimaginable level of satisfaction and quality of life.

Currently, orthodontic treatment plays a crucial role in interdisciplinary dental treatment. Especially clear aligner orthodontic treatments are more benefits to treat in interdisciplinary dental treatment in middle-aged patients.

In this lecture, I will explain in detail how to diagnose and treat interdisciplinary dental treatment beyond the limitations of orthodontic treatment through the SERAFIN clear aligner system, which was developed and is currently used in Korea very popularly.

Dr. Gabriel Schmidt Dolci is an accomplished orthodontist with a solid academic foundation and a global reputation for clinical excellence and innovation. He holds a Master’s and Specialist degree in Orthodontics and Dentofacial Orthopedics from the Pontifical Catholic University of Rio Grande do Sul (PUCRS – Brazil), and a Ph.D. in Dentistry from the Federal University of Rio Grande do Sul (UFRGS – Brazil).
With over 15 years of exclusive clinical practice in Orthodontics, Dr. Dolci also brings extensive academic experience, having served as professor and coordinator in several respected postgraduate orthodontic programs in Brazil, including those by the Brazilian Society of Dental Surgeons and São Leopoldo Mandic. Internationally, he was Program Director and Professor of the Master’s in Orthodontics at the European University College (EUC) in Dubai, and is a licensed orthodontist by the Dubai HealthCare Authority (2021–2023).
A published researcher, his work centers on biomechanics, digital orthodontics, bone remodeling, and the integration of technology into clinical workflows. He is a sought-after speaker in global congresses and is widely recognized for bridging advanced biomechanics with clear aligner therapy.
Dr. Dolci is also Co-Founder of Push Learning & Development, a pioneering education platform that combines digital and in-person teaching. His lectures have reached professionals in more than 20 countries, reinforcing his mission to make high-level orthodontic knowledge accessible worldwide.

For decades, orthodontics has been built on wires, brackets, and mechanical principles, a craft of bending metal to move teeth with precision. However, today we stand at the forefront of a digital revolution, where algorithms and virtual treatment planning are rewriting the rules of orthodontic biomechanics.
Clear aligners are more than just a bracket-free alternative, they are a new orthodontic language, where force application is made in the overall crown surface, movements are staged with precision, and treatment success is no longer just about the hands ability but also the mindset of the clinician to plan an assertive and predictable digital strategy.
While technology has deeply impacted on treatment planning, visualization, and efficiency, aligners alone have limitations. Torque control, anchorage loss, root up righting and pure vertical movements remain critical challenges. That’s why hybrid approaches, such as TADs, elastics, segmented bonding and cantilevers, are no longer optional; they are the missing link to true aligner mastery. This lecture explores how clinicians must merge digital precision with biomechanical expertise, thus unlocking new possibilities and pushing the limits of what can be achieved with clear aligners.

Bullet Points:

• Beyond Brackets and Wires: The digital revolution is transforming orthodontic biomechanics, replacing manual wire bending with algorithm-driven precision.
• Aligners as a New Language: Success with clear aligners requires mastering force distribution, staging movements strategically, and developing a digital-first mindset.
• Hybrid Mechanics for True Mastery: To overcome aligner limitations, clinicians must integrate TADs, elastics, segmented bonding, and cantilevers, merging digital precision with biomechanics.

Dr. Yoon-Ji Kim is an associate professor at Asan Medical Center, University of Ulsan College of Medicine in Seoul, Korea. She obtained her DDS degree from Dankook University College of Dentistry in Cheonan, Korea, in 2007. Subsequently, she pursued specialized training in orthodontics and earned her PhD degree from Hallym University in Korea in 2012.
As a dedicated professional, Dr. Kim holds prominent positions within various prestigious organizations. She currently serves as the director of the Korean Society of Digital Orthodontists, the Korean Orthognathic Society, Korean Association of Lingual Orthodontists, and the World Society of Lingual Orthodontics.
Dr. Kim’s research interests lie in the realm of cutting-edge orthodontic techniques and technology. She focuses on three-dimensional imaging, analysis of intraoral scan data, and the application of machine learning methods for orthodontic diagnosis and the study of temporomandibular joint disorders.

The introduction of temporary anchorage devices (TADs) has significantly improved the management of complex malocclusions. By enhancing anchorage—defined as resistance to unwanted tooth movement—clinicians can achieve greater precision in managing force systems during treatment. Loss of anchorage is a common challenge in clinical scenarios, particularly when addressing sagittal discrepancies through sequential distalization or managing vertical discrepancies such as molar intrusion in the treatment of anterior open bite.

This presentation will highlight the capabilities of clear aligners in treating complex skeletal problems through the integration of TADs. Using a series of clinical case demonstrations, I will provide practical insights into how aligners can effectively manage sagittal conditions such as skeletal Class II and Class III malocclusions, as well as vertical challenges such as anterior open bite, while minimizing anchorage loss. In addition, I will discuss strategies for the optimal placement of TADs from a biomechanical perspective, including considerations for selecting screw diameter and length based on different placement sites.

President of Council of the University of Medicine and Pharmacy, Vietnam National University, Hanoi
Head of Orthodontics Department, University of Medicine and Pharmacy, VNU
Graduated dentist in 1997 at Rennes University, France. Graduated residency in maxillofacial surgeon in 2000 at Lille University, France. Graduated Ph.D. in dentistry in 2006 at Hanoi medical university, title of Associate Professor in 2015, have many studies related to maxillofacial surgery, orthodontics, dental implants , occlusion …..

In orthodontic treatment, the primary challenge lies not only in reestablishing harmony across the three dimensional planes—anteroposterior, vertical, and transverse—but also in achieving precise and independent control of each dimension. The temporary anchorage devices (TADs) has marked a significant advancement in managing anteroposterior movements, especially in cases requiring maximum anchorage. However, when vertical control is also required—particularly in the anterior region—anatomical limitations present considerable difficulties. The bone density in the anterior region is typically higher than in the posterior region, making vertical control more difficult when TADs are placed posteriorly. Shifting the placement of TADs anteriorly—specifically in the region of the maxillary first premolar extraction socket—offers the potential to enhance vertical control while maintaining effective anteroposterior management of the anterior segment. This presentation will explore the advantages and limitations of TADs in the first premolar extraction site, with a focus on its effectiveness in vertical control—a topic of great interest in clinical practice.

• 1998: DDS, Hanoi Medical University, Vietnam
• 2003: Hospital Resident Physician Program at Ha Noi Medical University
• 2014 : PhD, School of Dentistry, Ha Noi Medical University.
• 7/2012 – 9/2012: AusAID Australian Leadership Award Fellowship with Hoc Mai Australia Vietnam Medical Foundation

Experience: Orthodontics

• 1999 – 2002: Resident in Orthodontics, Ha Noi Medical University, Vietnam
• 2003 – 2009: Lecturer, Department of Orthodontics, School of Dentistry, Ha Noi, Viet Nam
• 2009- present: Lecturer, Department of Orthodontics, School of Dentistry – Ha Noi Medical
• 2018 – Now: Vice head of Orthodontic Department, School of Dentistry, HMU
• Member of VAO, WFO and AAO

Skeletal Class III malocclusion is one of the most complex and challenging malocclusions, especially in patients who have passed the peak of pubertal growth. In Viet Nam, patient often have a combination of retrognathic and narrow maxilla and prognathic and wider mandible. Consequently, the discrepancy in both dental and skeletal structures typically occurs in all three dimensions rather than just the anteroposterior direction. For effective treatment to achieve both functional and aesthetic outcomes, orthodontic treatment combined with orthognathic surgery is usually required. However, many patients refuse surgery due to financial concerns or fear of surgical procedures. This presents significant clinical challenges, raising the question of whether orthodontic treatment alone can achieve a satisfactory occlusion and aesthetics that meet patient expectations? The advent of temporary anchorage devices (TADs) has opened a new era in orthodontics, expanding the envelope of tooth movement and enabling the treatment of skeletal disharmony that would traditionally require surgical intervention. In this presentation, I would like to share with my colleagues the challenges and treatment approaches for non-surgical correction of skeletal Class III malocclusion with the support of TADs.

Dr. Nguyen Thi Thuy Nga graduated from Hanoi Medical University in 1999. She completed her residency and master’s degree in dentistry at the same university in 2004, including a one-year residency at Civil Hospital in Strasbourg, France. In 2016, she obtained her Ph.D. from the University of Bordeaux, France.
Dr. Nguyen Thi Thuy Nga is a full-time orthodontist at the National Hospital of Odonto-Stomatology in Hanoi and currently serves as Vice Head of the Department of Orthodontics at the School of Dentistry, Vietnam National University, Hanoi.
Having practiced orthodontics exclusively since 2006, Dr. Nguyen Thi Thuy Nga has been a fellow of the World Federation of Orthodontists (WFO) since 2015. She is currently the Secretary General of the Vietnam Association of Orthodontists (VAO).

Bimaxillary protrusion and excessive gingival display (gummy smile) frequently result from maxillary vertical excess and downward rotation of the mandible. Orthognathic surgery approaches, while effective, are invasive and not always feasible. The evolution of temporary anchorage devices (TADs) has opened new possibilities for non-surgical correction of such dentofacial discrepancies.
Total maxillary arch intrusion using TADs represents a powerful, non-surgical alternative. This technique promotes counterclockwise mandibular rotation, contributing to improved facial harmony and functional occlusion, and may offer a viable alternative to orthognathic surgery in selected cases.
The author presents a literature-based review and some clinical cases treated with this method which demonstrate significant improvements in facial aesthetics, including reduced gingival display, decreased lip strain, and improved profile due to anterior retraction and counterclockwise mandibular rotation. Cephalometric analysis confirms skeletal and dental changes consistent with therapeutic goals.

1998 – 2004: Doctor of Dento-Stomatology at the University of Medecine and Pharmacy of HCM city.
2004 – 2008: Diplôme Universitaire d’Orthodontie at University Bordeaux II – France
2017-2023: Doctor of philosophy degree specialized in dentistry at 108 Institute of Clinical Medicine and Pharmacy – Hanoi
Lecturer at the department of Orthodontics, Pham Ngoc Thach University of Medicine and Pharmacy, Ho Chi Minh City
Member of the Standing Committee of the Vietnam Association of Orthodontists (VAO)
Member of the Executive Committee of the Ho Chi Minh City Association of Orthodontics (HAO)
Member of the World Federation of Orthodontics (WFO)

The current situation in Vietnam as well as in the world is that nearly all the complex skeletal Class III cases in adult are dessigned for orthognathic surgery, while the complications of maxillo-facial surgery is sometimes severe, which scares many patients.
The GEAW technique combined with orthodontic miniscrews being used in some places in the world and recently introduced to Vietnam has helped orthodontists to sucessfully treat some severe cases of skeletal class III and avoid orthognathic surgery. GEAW helps to manage the occlusal plane, responsible for moving the maxilla and mandible within certain limits. Orthodontic screws with suitable design in terms of position and connection help to manage anchorage and reduce the side effects of intermaxillary elastics.
The article cites and briefly analyzes some research results showing the special effect of GEAW technique and the combined system on the position of both jaws. Some clinical cases illustrating the method will also be presented in detail.