Can dental implants be placed right after sinus grafting?

This clinical trial is testing whether dental implants can be placed at the same time as a sinus lift procedure, or if it is better to wait four months for the graft to heal first. The study involves adults who need sinus augmentation to support dental implants in an upper jaw with limited bone height. Participants are randomly assigned to receive implants either immediately in the fresh graft material or after the healing period. The main goal is to compare how well the implants integrate and remain stable over three years, using both clinical checks and X-ray imaging to assess bone changes.