1. Advanced Oral Surgery Unit, Department of Dentistry; Vita Salute University, San Raffaele Hospital; Milan Italy
2. Department of Oral Rehabilitation; University of Rome Tor Vergata; Rome Italy
3. Department of Periodontics; University of Maryland School of Dentistry; Baltimore MD USA
4. Department of Prosthodontics; Albert Ludwig University of Freiburg; Freiburg Germany
5. Vigevano Italy
6. Milano Italy
7. Department of Dentistry; Vita Salute University, San Raffaele Hospital; Milan Italy