1. Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, School of Pediatric Dentistry, University of Brescia, Pl. Spedali Civili 1, 25123 Brescia, Italy
2. Department of Medicine e Surgery, School of Dentistry, University of Insubria, Via Ravasi 2, 21100 Varese, Italy
3. Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Unit of Dentistry & Oral-Maxillo-Facial Surgery, University of Modena and Reggio Emilia, Via del Pozzo, 41124 Modena, Italy