Abstract
Summary:Objective: to evaluate dental enamel surface alterations after bleaching treatments with Hydrogenperoxide and Fluoride. Methods: Extracted pre-molars were analys under SEM after bleachingtreatment; the samples were storaged in saline solution. Two phases were made, without and withfluoride application after bleaching treatment using Nitewhite® and Zoom2® as bleaching agents, theshade was taken at baseline and after the bleaching procedure. Results: 36.6% of samples showedmoderate alterations and 32.9% showed severe enamel alterations. Post/treatment with fluoride showedvariable outcomes, but mild alterations in the fluoride/treated samples were found to be morefrequent, A statistically significant result was found among fluoride/treated and non/treated groupsafter bleaching (P<0.005) chisquare test. In contrast, within fluoride/treated groups it was notfound significant differences. Conclusions: The use of high concentrated in/office carbamideperoxide may require limited application sessions as recommended by the manufacturer. The use ofpost/treatment fluoride may bring great benefit to patient’s dental hypersensitivity. Key words:Carbamide Peroxide. Hydrogen Peroxide. Enamel roughness. Fluoride. Remineralization.
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