1. Department of Surgical Sciences, Dental School, Oral Surgery Unit University of Turin Turin Italy
2. Department of Mechanical and Aerospace Engineering, Politecnico di Torino Turin Italy
3. Department of Surgical Sciences, Dental School, Endodontics and Operative Dentistry University of Turin Turin Italy
4. Private Practitioner Turin Italy
5. Department of Public Health and Microbiology University of Turin Turin Italy
6. Department of Surgical Sciences, Dental School, Radiology Unit University of Turin Turin Italy