Using Chin Bone Rings for Sinus Lifting and Dental Implants in One Surgery

This study evaluates the Bone Ring Technique, a single stage procedure that combines external sinus floor elevation and dental implant placement using an autogenous bone ring harvested from the chin. Ten patients with residual alveolar bone height ≤4 mm in the posterior maxilla will be enrolled. Implant stability (ISQ), vertical bone gain, peri implant bone density, and implant survival will be assessed over 6 months. The aim is to reduce treatment time and surgical interventions compared to traditional two stage approaches.

NCT Number	NCT07619846
Lead Sponsor	Damascus University
Conditions	Severe Alveolar Bone Atrophy of the Posterior Maxilla With Residual Bone Height ≤4 mm
Enrollment	10 participants
Start Date	2026-05-31
Primary Completion	2027-02-21 (estimated)
Study Completion	2027-03-21 (estimated)
Updated on ClinicalTrials.gov	2026-06-04