Desafios da adesão intrarradicular: revisão de literatura

• Autor(a) principal: martins, ronaldo
• Data de Publicação: 2020
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Universitário da Ânima (RUNA)
• Texto Completo: https://repositorio.animaeducacao.com.br/handle/ANIMA/16538
• topic: Adesão. Adesivos. Cimentos

Current scientific evidence points to more reliable results for the cementation of intraradicular retainers with glass ionomer and self-adhesive resin cements when compared with adhesive resin. Achieving stable adhesion to intraradicular dentin, especially apical, is an enormous clinical challenge due to the influence of several factors. In addition to the limited access to light inside the duct, the technical conditions and characteristics of the substrate and the cementing agent are also determining factors of the result. Inside the duct, the control of humidity, quantity and evaporation of the solvent present in the applied adhesive and the use of oxidizing agents for intraradicular cleaning can compromise the complete polymerization of the resin cement. In addition to these factors, there is the incompatibility of simplified adhesive systems, which accompany most resin cements, with chemical and dual polymerization resins. In addition, the excessive permeability of the simplified adhesives and the acidity of their final layer make these adhesives behave as permeable membranes after polymerization, allowing the transudation of water through the adhesive layer and increasing the likelihood of long-term degradation. Thus, the present study aims to carry out a narrative review of the literature with regard to the adhesion of intraradicular retainers and to elucidate the main challenges, interferences and supporting factors with regard to internal root anatomy, filling materials, cementing agents and techniques that involve restorations using intracanal pins. Keywords: Adhesion. Adhesives. Cements.