Long-term DBBM Dimensional Changes in Sinus Grafting

This study aims to evaluate graft volumetric changes and stability up to 12 years after lateral sinus floor elevation with deproteinized bovine bone mineral (DBBM) as a filling material.

Inclusion Criteria: * Patients who underwent lateral sinus floor elevation with natural bovine bone as filling material after 2011 at the Faculty of Dentistry, Saint Joseph University of Beirut. * At least 18 years old at baseline * Systemically healthy * Patients who sign a new informed consent. * Smokers (≥ 10 cigarettes/ day) and non-smokers (\< 10 cigarettes/ day) Exclusion Criteria: * Patients who did not take a CBCT within 1 year after the initial surgery. * Presence of inflammatory lesions at the surgical site (eg, sinusitis as assessed by CBCT). * History of radiation therapy in the head/neck region. * Use of bisphosphonates.