A Combined Lateral-Crestal Approach of Sinus Floor Elevation: Three Case Reports

This clinical report describes a combined lateral-crestal approach to elevate the sinus floor when placing implants on a wide maxillary posterior ridge. The buccally enlarged osteotomy broadens the vision of practitioners and facilitates access of instruments in the sinus. Compared with the traditional lateral approach of sinus lift, the proposed technique offers a more conservative treatment modality. A clinical study with sufficient subjects and long-term follow-up is needed to validate the potential and limitations of the proposed technique.