Análise da alteração superficial do esmalte bovino submetido a agentes clareadores e substâncias com ph ácido.

Abstract

Objective: The aim of this work was to perform an experimental In Vitro research to evaluate the bovine enamel modification that had submitted onto different concentrations of bleaching agent based on Carbamide peroxide as well as citric acid (lemon juice) and cola-based soda. Materials and methods: there were selected 25 intact anterior mandibular bovine teeth, which were divided based on the surface treatment into five groups with five teeth each. Group I – citric acid; group II - cola-based soda; group III - 10% Carbamide peroxide; group IV- 22% Carbamide peroxide, group V- 16% Carbamide peroxide. For the treatment accomplish, the bovine teeth had fixed into a condensation silicone matrix, which one identified by their respective numbers. The analysis of the bovine teeth surface after treatment has performed and supported by Zeiss Optical Microscope (Zeiss, Thuringia, Germany) and AxioVision Software (Zeiss, Thuringia, Germany). It has seeking into those different groups to analyze the modification on the bovine enamel surface. The surface modification analysis has based on the visual aspect provided by the product in those samples. Results: the images have shown bovine enamel modifications in the different groups of Carbamide peroxide concentration as well as in the citric acid and cola-based groups. Conclusion: It has concluded over the visual aspects that the 22% Carbamide peroxide and citric acid presented the higher modification into enamel surface, which has compared to another groups. On the other hand, the 10% and 16% Carbamide peroxide has presented similar enamel modifications. The based-cola soda has shown the lower enamel surface modification.