A Comparison of the Fracture Resistance of Maxillary Central Incisors with a Ferrule Using Various Post Systems

Objective: In the literature, the influence of different post types utilized on ferrule-formed maxillary central teeth on fracture resistance and restoration life is not clearly explained. This study aims to investigate how fiber reinforced composite posts (FRC), fiber posts (FP), and zirconia ceramic posts (ZCP) effect fracture resistance of endodontically treated central teeth with a ferrule. Methods: Ferrule was created to preserve 2 mm of coronal dentin structure for 30 maxillary central teeth that undergone root canal therapy. Thirty maxillary central teeth were separated into three distinct groups, and three distinct posts were applied: FRC, FP, and ZCP. After constructing the post core, the strip crown was applied. Thermal cycling and chewing simulation were performed on the samples. The samples were exposed to a refractive test in a universal testing machine. The samples were subsequently analyzed at x10 magnification using an optical microscope. A one-way ANOVA and Chi-square test were used to assess fracture resistance between groups. Results: In terms of fracture resistance and fracture type, the statistical analysis revealed no statistically significant differences between the groups. Conclusion: Endodontically treated teeth that have been prosthetically restored with post implantation are more likely to survive because of the ferrule effect. © 2025, Ataturk Universitesi. All rights reserved.