Dr. Chooryung Judi Chung is a professor and Chair at the Department of Orthodontics, Yonsei University College of Dentistry and Gangnam Severance Hospital, 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. She serves as the Secretary General of World Implant Orthodontic Association (WIOA) and the Director of International Affairs of the Korean Association of Orthodontists. Her clinical and research interests include the clinical application of TADs, digital orthodontics and interdisciplinary dentofacial orthopedics for adults.