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COS (Chinese Orthodontic Society) is one of the world's preeminent orthodontics research and clinical care organization dedicated to the prevention and treatment of malocclusion. Its objective is precisely what IOF continues to pursue. In order to implement mutual understanding, IOF was work as a key partner with COS to support its annual academic meeting held in Xi’an, China, on October 26th to 28th,2023. The COS annual meeting is a national event in China, attracting nearly 6,000 participants across a wide range of research, scientific, and clinical backgrounds, all focused on improving outcomes for patients.









BDS, MDS, PhDEmeritus Editor-in-Chief, Progress in Orthodontics Adjunct Faculty, The ADA Forsyth Instutiute Cambridge, Ma, 02142 Emeritus Professor Division of Orthodontics School of Dental Medicine UConn Health Farmington, CT 06030 USA

Co-Director, The Andrews Foundation

Creator of FAS, FACE Aligner System
M.S. in Orthodontics University of Valencia
Diploma For Functional Occlusion – Roth Williams Center 1991-1993 San Francisco California
Diploma Foundation for Bioesthetic Dentistry 2004-2006 Portland, Oregon
Active Member Angle Society of Europe
President of the Angle Society 2014-2016
Juan Carol Prize for Best Presentation at the S.E.D.O.(Spanish Society of Orthodontics) 1991
President of the S.E.D.O. Meeting (Spanish Society of Orthodontics) 2000
Diplomate of the European Society of Orthodontics (EBO) 2008
Director of FACE – Spain
Visiting Professor – University of Barcelona - Orthodontic Department
Visiting Professor University Complutense of Madrid - Department of Orthodontics
Creator of FAS – FACE Aligner System

Co-Creator of FAS, FACE Aligner System
Private practice in Barcelona, Spain
Professor of the Roth-Williams Postgraduate Orthodontics since 2002 (San Sebastián, Spain)
FACE teacher in courses in Spain, Uruguay, Turkey, Romania, Russia, Poland, Ukraine and China
Visiting professor of the Master of Orthodontics at the Complutense University of Madrid (Madrid, Spain)
Visiting professor of the Master of Orthodontics at the University of Barcelona (Barcelona, Spain)
Member of the Spanish Society of Orthodontics
Roth Williams Society Member
Honorary member of the Dawson Academy
Creator with Dr Domingo Martin of FAS Face Aligner System

Chair of Section of Maxillofacial Orthognathics Department of Maxillofacial Reconstruction and Function, Tokyo Medical and Dental University
Dean, School of Dentistry, Tokyo Medical and Dental University, 2014-2017
Deputy Dean, Tokyo Medical and Dental University, Faculty of Dentistry, 2017-present
President, Japanese Division, International Association for Dental Research, 2023-present
President, The Japanese Society for Jaw Deformities, 2022-present

Professor and Chair, Department of Orthodontic Science, Tokyo Medical and Dental University (TMDU) Graduate School

Professor of Department of Orthodontics School of Dentistry, Seoul National University
In addition, he is a member of Editorial Review Board of Angle Orthodontist, a Peer reviewer of AJODO, EJO, PIO and other journals, and an Associate Editor in Orthodontic Craniofacial Research and AJODO-Clinical Companion. He received a 2009 CDABO Case report of the year in Boston AAO meeting and gave presentations in 2010, 2011, 2012, 2016, 2017, 2019, 2023, and 2024 AAO meetings. He published more than 200 articles in prestigious orthodontic and surgical journals and around 50 books. His subspecialty is diagnosis and treatment of Class III malocclusion, cleft and craniofacial anomalies, and artificial intelligence.

Professor and Chair, Department of Orthodontics, Kyungpook National University, Korea
He had done many pioneer works and extensive research on development of microimplants since 1998. He has used microimplants for 24 years and owned ten patents and wrote more than 100 international articles, six textbooks, and eight chapters dealing with Orthodontic Microimplants.
His articles were cited in the orthodontic journals over 9,500 times and he has spoken to world-renowned orthodontic meetings more than 80 times as a keynote speaker and provided 2 or 3 days of microimplants training course internationally more than 230 times. He is serving as a reviewer for AJODO, Angle Ortho, EJO, Progress in Orthodontics, Orthodontics and Craniofacial Research, J of Orthodontics, KJO, and other journals. Dr. Hyo-Sang Park is doing researches concerning clinical use of microimplants, its biomechanics, and experiments to improve Microimplants treatment.