Segmental Alveolar Split Combined With Dental Extractions and Osteotome Sinus Floor Intrusion in Posterior Maxilla Using BMP-2/ACS Allograft for Alveolar Reconstruction: Technical Note and Report of Three Cases

The present report is of 3 patients who underwent a new technique for the posterior maxilla. After multiple dental extractions, the segment's alveolar was split to widen it, and the sinus floor was intruded using an osteotome to lengthen the alveolar height and then grafted with a bone morphogenetic protein-2/absorbable allograft without primary wound closure. Implant placement occurred 4 months later, followed by prosthetic restoration.