1. Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, AOU “Policlinico-San Marco”, Via S. Sofia 78, 95124 Catania, Italy
2. Department of Life, Health, & Environmental Sciences, Postgraduate School of Orthodontics, University of L’Aquila, P.le Salvatore Tommasi 1, Ed. Delta 6, 67100 L’Aquila, Italy
3. Department of Head, Neck And Sense Organs, Fondazione Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Largo Agostino Gemelli, 8, 00168 Rome, Italy