Reconstruction of Defective Alveolar Bone With NonResorbable and Titanium Reinforced Membrane Implantation Success

Aim: The aim of this study is to present the clinical success of cases in which implants were placed in defective alveolar bone in a single surgical procedure. Material and Methods: Thirty-three patients with alveolar bone defects in the maxillary canine and premolar regions were included in the study. Before the procedure, cone-beam computed tomography (CBCT) images were obtained from all patients and the heights of the defective walls were recorded. In the surgical operation, primary stability of the implant was ensured, guided bone regeneration was applied. The prosthetic restoration was completed as cemented or screwed. Six months after this stage, the amount of bone regained was recorded by CBCT imaging. Clinically, peri-implant probing depth and bleeding on probing indexes were examined. The Mann-Whitney U test was applied for comparisons between types of restoration, while bone heights were compared using the Wilcoxon Sign test (p<0.05). Results: The mean total bone height gain was 8.91 ± 1.30 mm. The pocket depth was significantly greater in cemented restorations compared to screwed restorations (p=0.006). The mean pink esthetic score score was 12.3 ± 1.8 and the mean white esthetic score score was 8.4 ± 1.5. Conclusion: In cases where there is a defect of more than half the implant length on one or both sides of the alveolar bone, implants can be placed in a single session with a meticulous surgical approach and appropriate material. The use of screw retainers in prosthetic restorations has been found to be more successful than cemented restorations.