1. School of Dentistry, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Via Consolare Valeria, 1, 98125 Messina, Italy
2. Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania “Luigi Vanvitelli”, 80121 Naples, Italy
3. Department of Public Health Dentistry, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pimpri, Pune 411018, India
4. Department of Dentistry, Faculty of Dental Sciences, University of Aldent, 1007 Tirana, Albania
5. Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123 Catania, Italy