Avaliação do deslocamento do selamento coronário durante a terapia clareadora em dentes não-vitais

Abstract

Introduction:Descoloration of devitalized teeth is quite common, and whitening is a therapeutic option because it is a simple and low cost method. However, the technique tends to displace the temporary sealing performed in the access cavity. Objective:To evaluate the displacement of the seal made with cements of diferente brands during internal bleaching. Methodology: 60 bovine incisors were used, with crowns removed 2mm below the cemento-enamel junction and endodontic accesses measuring 4mm x 4mm.Subsequently, the Pulp cavity were filled with bleaching agente and the teeth were randomly divided into 6 groups according to the cement used, G1 being the Coltosol cement, G2 the Villevie, G3 the Filltemp - with 15 samples each - and G4, G5 and G6 are the control groups, with 5 samples each. The groups were evaluated visually every 3 days, for 30 days, in order to quantify this displacement. Results: At the end of the research, G1 presented 33.33% of displacement, a repeated result in G2, while G3 presented 61.66% of displacement. Conclusion: Even with similar percentages of displacement, Coltosol excelled Villevie in terms of marginal integrity, while Filltemp presented the worst results.