Clareamento dental endógeno: revisao de casos clínicos

Abstract

Color change is common in non-vitalized teeth and endogenous bleaching is a widely indicated treatment option because it is considered safe, minimally invasive and presents satisfactory aesthetic results. The objective of this work was to review the literature on clinical cases of endogenous dental bleaching, aiming to establish the main techniques used, the bleaching agents applied and the average time to obtain satisfactory results. A total of 10 clinical cases of endogenous bleaching were reviewed. The etiology most associated with dental discoloration was previous trauma. The techniques used were carried out from the immediate and/or mediate application of the bleaching agent internally and/or externally to the tooth that presents color change. The bleaching agents used were 35% hydrogen peroxide, 10% and 37% carbamide peroxide and sodium perborate associated with distilled water or saline solution. The association of techniques and bleaching agents was observed. The time required to carry out bleaching varied between 12 and 35 days in the analyzed studies. In all clinical cases, a cervical barrier was created close to the cementoenamel junction, with glass ionomer being the most used material to make it. In cases of recurrence, external bleaching proved to be effective in restoring the color satisfactorily. Endogenous tooth bleaching can be considered an effective conservative treatment in obtaining satisfactory esthetics in devitalized teeth that present discoloration