Christos Katsaros obtained his dental degree from the Aristotle University of Thessaloniki, Greece, and received his four-year orthodontic training at the University of Saarland, Germany, where he also completed his doctoral degree (Dr. med. dent.) and “Habilitation.” He worked as a researcher at Göteborg University, Sweden, where he completed an Odont. Dr./ Ph.D. From 2000 to 2002, he served as an Associate Professor and from 2002 to 2008 as a Professor of Orthodontics at the Department of Orthodontics and Oral Biology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands. Since 2008 he has held the position of Professor and Chair at the Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Switzerland.