Martyn T. Cobourne is the author of Clinical Cases in Orthodontics, published by Wiley. Padhraig S. Fleming is Senior Clinical Lecturer and Consultant Orthodontist at Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK. He is an Associate Editor of the American Journal of Orthodontics and Dentofacial Orthopedics and the Journal of Dentistry and a co-author of Clinical Cases in Orthodontics (Wiley-Blackwell, 2012). Padhraig was awarded the Dewel Prize by the American Association of Orthodontists in 2011. He has been involved in numerous clinical trials investigating the relative merits of a range of orthodontic appliances and techniques. Andrew T. DiBiase is the author of Clinical Cases in Orthodontics, published by Wiley. Sofia Ahmad is the author of Clinical Cases in Orthodontics, published by Wiley.