1. Private practice; Paris France
2. Training Institute of Advanced Implant Surgery, IFCIA; Paris France
3. Private practice, Beirut, Lebanon and Department of Prosthetic Dentistry; St Joseph University; Beirut Lebanon
4. Private practice; Orléans France
5. Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology; Sahlgrenska Academy, Göteborg University; Göteborg Sweden
6. Brånemark Clinic; Public Dental Health Service, Region of Västra Götaland; Sweden