Dr. Guilherme Janson received his dental education at Bauru Dental School, University of São Paulo, Brazil. He completed his Master´s and PhD programs in Orthodontics at the Department of Orthodontics at Bauru Dental School, University of São Paulo in 1986 and 1990, respectively. From 1990 to 1991 he was a visiting researcher at the Faculty of Dentistry, University of Toronto, Canada. Dr. Janson is currently Professor at Bauru Dental School, University of São Paulo, Vice-Dean of the same school and Deputy Superintendent of the Hospital for Rehabilitation of Craniofacial Anomalies. He is a diplomate of the Brazilian Board of Orthodontics and has published extensively in the international literature and has lectured at international meetings and symposiums. He is currently a member of the Advisory Board of Progress in Orthodontics and of the Editorial Board of Orthodontics and Craniofacial Research and Dental Press Journal of Orthodontics.