1. Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, via Consolare Valeria University Hospital “Gaetano Martino”, 98124 Messina, Italy
2. Department of Sensorineural and Movement Surgery, Oral Medicine and Dentistry for Patients with Special Needs, University of Palermo, via del Vespro 129, 90127 Palermo, Italy
3. Department of Surgical, Oncological and Oral Sciences, University of Palermo, via Liborio Giuffrè 5, 90123 Palermo, Italy