V Zavaglia1, A Nori2, C Rubini3, S R Berlin4, C Serafini4. 1. SOD of Dentistry Surgical and Special AOU "Ospedali Riuniti" Ancona, Italy. 2. Oral Surgery SOD of Surgical Dentistry of Special AOU "Ospedali Riuniti", Ancona, Italy. 3. Istitute of Pathological Anatomy, Polytechnic University of Marche, Ancona, Italy. 4. SOD of Dentistry and Special Surgery, AOU "Ospedali Riuniti" Ancona, Italy.