Dr. Jianyong Wu is Vice Dean and Professor of orthodontics at the School of Stomatology , Shanghai Jiaotong Univesrsity and chairman of the department of stomatology of affiliated to Shanghai Jiaotong University School of Medicine. He is now a member of the executive committee of Chinese Orthodontic Society and member of the World Federation of Orthodontics and member of American Association of Orthodontics. He is now an instructor of Charles H. Tweed International Foundation in Tucson Arizona and instructor of the China Tweed Center. Dr. Wu was appointed as Adjunct Professor by the Department of Orthodontics School of Dental Medicine, Case Western Reserve University.