Fracture resistance of endodontically treated canines restored with different sizes of fiber post and all-ceramic crowns

摘要

PURPOSE The aim of this study was to determine the fracture resistance and the mode of fracture of endodontically treated teeth restored with different fiber posts and all-ceramic crowns. MATERIALS AND METHODS Two glass fiber reinforced post systems in two different sizes and polyethylene fiber ribbon in two different thicknesses (n=10) were used. The specimens, restored with all-ceramic crowns, were subjected to a compressive load (in N) delivered at a 130-degree angle to the long axis until a fracture could be noted. The results were analyzed statistically with a One-Way ANOVA test ( P RESULTS Statistically significant differences were observed between the mean fracture resistance values of Postec, Snowlight, and Kerr Connect thin specimens ( P CONCLUSION In terms of optimizing fracture resistance, the fiber post size selection should be done according to the forces applied to the restored teeth.