VINCENZO QUINZI DDS, MSD, PhD, Specialist in Orthodontics. Professor of Orthodontics at the School of Specialization of the University of L’Aquila. Wrote more than 65 international articles, 4 text books, 3 chapters of orthodontic books and 6 monographies. Owns a patent for a new device for orthodontic bracket placement. Has spoken at world renowned orthodontic meetings in more than 8 countries. Is Assistant Editor at the European Journal of Pediatric Dentistry, Guest Editor at Applied Sciences for the Special Issue: “New Materials and Technologies in Orthodontics”, board member of SIOI (Italian Society of Paediatric Dentistry), active member of SIDO (Italian Society of Orthodontics), member of WFO (World Federation of Orthodontics), member of EOS (European Orthodontics Society). Reviewer for EJPD, Applied Sciences, Dentistry Journal, etc. Conducting research concerning transversal dimension, serial extractions in growing patients.