Abstract
The aim of this study is to evaluate color stainability of a hybrid ceramic, a direct composite resin and an indirect composite resin, previously submitted to bleaching. Cylindrical specimens (10 x 1.0 mm) will be obtained by following materials: hybrid ceramic based-on the concept of Polymer-Infiltrated-Ceramic-Network (Enamic - Vita), indirect nanoceramic composite resin (Lava Ultimate …