Reforço intrarradicular de dentes decíduos anteriores: uma revisão sistemática de estudos in vitro

Abstract

Background: The use of different techniques to improve intraradicular retention in deciduous teeth with widespread destruction by caries or trauma is still a questionable question due to their physiological characteristics, such as the rhizolysis process, crown size and sufficient structure of dentinal root to support a retainer. Aim: To assess the various methods of intracanal reinforcement for anterior decidous teeth based on the their biomechanics performance, through a systematic review of in vitro studies. Materials and Methods: Literature search of electronic databases (PubMed e Lilacs) using medical subject headings and free text terms was conducted. A systematic review of studies in vitro published between 2012 and 2019, witch aimed to report the biomechanics of intraradicular retainers in decidous teeth were selected. Results: Seven relevant articles were selected for full text evaluation, witch was possible to verify the relieved distance most used in children was 4mm and the mainly retainers were glass fiber post, composite resin, polyethylene fiber and orthodontic wires. The tests performed were fracture strength and bond strength. Conclusions: The evidence to the best intracanal retainer for primary teeth it is still undefined, and is necessary more studies.