Estudo comparativo de materiais e modos de armazenamento de dentes humanos em apicectomias : análise por Microscopia Eletrônica de Varredura (MEV) = A comparative study of materials and storage modes in human teeth in apicoectomy : Scanning electron microscopy (SEM) analysis

Abstract

Apical surgery is a procedure involving surgical exposure of the committed apex, amputation of the same, root-end cavity preparation and retrofilling of the root canal. The success of this surgery is associated with the proper performance of the various steps of all surgical procedures. This study aimed to compare results of apical surgery in vitro, using different restorative materials and two different storage modes of human teeth. The sample consisted of 60 single root human teeth witch were divided into two groups according to the storage mode (hydrated and not hydrated), each group was subdivided according to the retrofilling material (mineral trioxide aggregate and glass ionomer cement modified by resin). Each specimen was evaluated by digital radiographic images and scanning electron microscopy (SEM). It was concluded that mineral trioxide aggregate (MTA ®) obtained the best results for the apical seal in both mores of storage and that the glass ionomer cement modified by resin (Vitremer ®) showed significantly increased gap values when the teeth were hydrated.