Comparison of the clinical, radiographic, and histological effects of titanium-prepared platelet rich fibrin to allograft materials in sinus-lifting procedures.

Abstract

In the present study, we evaluated the clinical, radiographic, and histological comparisons of completely autologous titanium-prepared platelet rich fibrin (T-PRF) or allograft in sinus-lifting procedures. Eighteen posterior maxilla requiring sinus-lifting procedures using the balloon-lifting technique for implant placement were selected. Ten sinuses were randomly assigned to T-PRF as the test group and eight to allografts as the control group. After 4 and 6months in the test and control groups, respectively, computed tomography was done, and bone samples were received during implant surgery. Three months after the second surgery, implant stability was measured. Radiological results showed that the allograft group had better results (62% in volume, 53% in density, and 69% in height) than the T-PRF group. Histomorphometric results showed that newly-formed bone ratios were 17.28±2.53 and 16.58±1.05 in the allograft group and T-PRF groups, respectively. There was no significant difference between the test and control groups (P=.611) for implant stability values. The use of T-PRF alone in sinus-lifting operations has successful clinical and histomorphometric results. Bone formation in the T-PRF group was accelerated to 4months compared to allografts according to the histological results.