Department of Medicine, Surgery and Dentistry “Schola Medica Salernitana”, School of Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi, Salerno, Italy, / Complex Operating Unit of Odontostomatology, Head and Neck Clinical Department, Azienda Ospedaliero-Universitaria San Giovanni di Dio e Ruggi d’Aragona, Salerno, Italy