Descoloração dentária após uso do Mineral Trioxide Aggregate (MTA): revisão de literatura

Abstract

The characteristics of dental materials demonstrate that some of the materials used in endodontics can cause discoloration and thus impair the aesthetic outcome of the treated tooth. A number of conservative therapy techniques have been recommended to preserve pulp vitality in teeth with complicated crown fractures of enamel and dentin with pulp exposure or indicated cases of pulp exposure by caries. Calcium hydroxide has been the gold standard as a pulp capping material, but recently mineral trioxide aggregate (MTA) has been recommended. The purpose of this review was to evaluate the color changes produced by the MTA in dental tissue, besides its potential for discoloration after endodontic procedures, in cases of root perforation or furcation. The results show that in order to reduce the risk of discoloration of the teeth induced by the MTA, it must be carefully applied in the areas of aesthetic interest. Further studies are needed with rigorous designs and patterns of rigid evaluation to confirm the association between the use of MTA and tooth discoloration. Insufficient randomized controlled trials to confirm the scientific evidence of this statement. Furthermore, it is necessary to develop endodontic materials with similar properties to the MTA, and yet does not cause staining.