[Implant-supported prostheses: the value of surgeon-prosthetist collaboration]

For extra-oral implants, the difficulty is not simply the surgical technique, similar to that used for intra-oral implants. The real problem is to insert the implant at a specific position and with a proper alignment. The final cosmetic result is directly related to correct insertion of the implant and its anchors. We demonstrate the importance of a tight collaboration between the surgeon and the prosthesis, before, after and often during the intervention for obtaining a satisfactory result.