Clinical, radiographic and histological outcomes of sinus floor augmentation for delayed implant placement using autogenous fresh tooth graft

Abstract

Objectives: To investigate the effectiveness of the freshly extracted dental particulate inmaxillary sinus grafting.Patients and Methods: This prospective study was carried on 8 patients who underwent sinusaugmentation. After atraumatic extraction, the teeth were ground and processed into a bacteria freedentin particulate, then grafted immediately into the maxillary sinus; after 6 months from the sinuslift procedure patients received 13 implants and core biopsies were collected. The primary outcomewas the change in the graft height and was assessed radiographically, the secondary outcomes werenew bone formation and implant survival rate.Results: According to the radiographic analysis, the graft showed loss of 2.4±0.6 mm after6 months. The percentage of graft height loss was 19.9 ± 4.9 %. While at 12 months, total graftheight loss was 2.65±0.7 mm. The percentage of graft loss was 22.4±4.4 %. In the histologic picture,new bone formation together with the autogenous tooth graft materials was observed. Survival rateof dental implants after 6 months from loading was 100 %.Conclusions: Autogenous demineralized dentin matrix particulate grafted immediately afterextractions is safe and successful biomaterial with excellent bone forming capacity in sinusaugmentation, it can be considered as a good alternative to bone graft in sinus lift procedure.