Trephine Core Procedure Versus Bone-Added Osteotome Sinus Floor Elevation in the Augmentation of the Sinus Floor: A Comparative Clinical and Radiographic Study.

Purpose: The aim of this study was to clinically and radiographically compare the trephine core procedure and the bone-added osteotome sinus floor elevation technique in the augmentation of the sinus floor.

Materials And Methods: A single site in each subject requiring sinus augmentation where the residual bone height was ~4 mm was randomly allocated to either the trephine core procedure or the bone-added osteotome sinus floor elevation technique. Measures of bone fill and bone height were also acquired through scans from cone beam computed tomography obtained before the sinus augmentation procedure (baseline) and before implant placement at approximately 6 months postoperatively.