Dr. Eric Liou is an associate professor and the chairman of the Faculty of Dentistry, Chang Gung Memorial Hospital & Chang Gung University, Taipei, Taiwan. He is also a visiting professor in the Department of Orthodontics, Showa University, Tokyo, Japan. For the profession affiliations, Dr. Liou is currently immediate past president of the Taiwan association of Orthodontists, and immediate past president of the World Implant Orthodontic Association. He also is the ECM of Asian Pacific Orthodontic Society (APOS) and the editor of the APOS Trends in Orthodontics. His main research interests are distraction osteogenesis, TADs, orthodontic tooth movement, platelet rich plasma, and bone physiology. Dr. Liou has numerous publications and presentations, specially on the topics of accelerated orthodontic tooth movement, maxillary orthopedic protraction, surgery first accelerated orthognathic surgery, and TADs.