1. Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy
2. College of Medicine and Dentistry, Birmingham B4 6BN, UK
3. Unit of Dentistry-Orthodontics, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
4. Unit of Dentistry, Research Center for Oral Pathology and Implantology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy