Complication rate in 200 consecutive sinus lift procedures: guidelines for prevention and treatment.

Purpose: Maxillary sinus grafting is a predictable and reliable procedure that has been routinely performed for more than 30 years. The complication rate is low, but some cases may require additional surgery, and the outcome of oral rehabilitation may be affected. The purpose of the present study was to evaluate the early and late complications after sinus lift procedures performed in the authors' center, with special attention to risk factors and their connection to the principles of prevention and treatment.