Performance of Fiberglass Posts Versus Fiber- Reinforced Resin Composites in Endodontically Treated Anterior Teeth Without Ferrule: A Systematic Review.

OBJECTIVE: To perform a systematic review of in vitro studies examining endodontically treated anterior teeth restored with fiberglass posts versus composite posts reinforced with: polyethylene fibers (Ribbond), fiber-reinforced resin (everStick) and composite resin (everX). METHODS: The search was performed using PubMed, Scopus, Web of Science and LILACS. The studies were selected by two independent reviewers. To assess the risk of bias of each study, the QUIN tool was used. We analyzed the data using a narrative synthesis. RESULTS: Five articles were retained for final analysis. The risk of bias was moderate to high. Most studies reported non-catastrophic failures. With 72 non-catastrophic failures for the glass fiber group and 60 for the fiber-reinforced resins. Catastrophic failures were more prevalent in fiber-reinforced composite, especially in the Ribbond-treated group. CONCLUSION: Within the limitations of this study, the use of fiberreinforced composites as custom intracanal posts is still questionable, with controversial results. It is not possible to establish the superiority of one approach over the other in endodontically treated anterior teeth without ferrule. CLINICAL RELEVANCE: It was not possible to identify a superior performance among the approaches analyzed for the restoration of endodontically treated anterior teeth without ferrule.