Comparing Maxillary Sinus Floor Elevation Using a Mix of Autogenous Bone and Bovine Bone Particles Versus Bovine Bone Particles Alone for Implant Placement in Atrophied Posterior Maxilla

What this Trial Is About

This research focuses on patients who have an atrophied posterior maxilla and need dental implants. It compares two methods of maxillary sinus floor elevation and augmentation one using a 11 mixture of the patients own bone autogenous bone with deproteinized bovine bone particulate, and the other using deproteinized bovine bone particulate alone. The goal is to evaluate bone height and volume changes after these procedures. The study involves two phases. In the first phase, patients undergo surgery under local anesthesia where a lateral window is created in the maxillary bone and the sinus membrane is carefully lifted. Depending on the group, either the bone mixture or bovine bone alone is placed into the sinus cavity, covered with a collagen membrane, and the flap is sutured. In the second phase, six months later, delayed implant placement is performed, and a core biopsy is taken from the implant site for histological analysis. The flap is then closed with sutures. Participants will have preoperative CBCT imaging to assess the sinus anatomy and bone quality. Follow-up includes assessment of bone height changes at nine months. The study monitors bone volume changes as a secondary outcome. All surgical procedures are performed by a single experienced oral surgeon to ensure consistency. The total participation includes initial surgery, delayed implant placement with biopsy, and imaging assessments over several months.

Radiographic and Histomorphometric Assessment for Maxillary Sinus Floor Elevation and Augmentation Using A Mixture of 1:1 Autogenous Bone With Deproteinized Bovine Bone Particulate Versus Deproteinized Bovine Bone Particulate