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

Purpose. 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. Materials and Procedures: 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 after the refraction test. 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, the statistical analysis revealed no statistically significant differences between the groups. Regarding fracture type, there were no significant differences between the groups. Conclusion. Despite the fact that the type of post is particularly critical for the survival of endodontically treated teeth, the presence of a ferrule considerably improves survival. Endodontically treated teeth that have been prosthetically restored with post implantation are more likely to survive because to the ferrule effect.