In this study we have tried to evaluate the degree of integration for endosinusal grafting and implant placement in the posterior maxilla.
Material and method: We included in our study a number of 136 patients with sinus lift surgery. We have established the stability of the implants using the periotest.
Results: The presence of the antral septum favoured the sinus membrane to tear, the results of our study are obvious (23.46%). Aloplastic materials for sinus grafting is our first choice because the results are comparable with the cases in wich we used autografts, and the advantage is that we don't need a second surgery place. Implant insertion after sinus grafting integration, increases the rate of succes in sinus grafting and implant insertion compared with sinus grafting and implant insertion made in the same operative step.