1. Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), School of Dentistry University of Verona Verona Italy
2. Research Department, Dental Implant Unit, Faculty of Dentistry University of Cartagena Cartagena Colombia
3. Department of Prosthodontics and Periodontology, Bauru School of Dentistry University of Sao Paulo Bauru Brazil