2026-09-032026-09-032020-09-30BARBOSA,Jorge Henrique Pinheiro. Influência do polimento e aplicação tópica de fluoreto pós-clareamento na microdureza e rugosidade superficial do esmalte dental. Orientador: Sandro Cordeiro Loretto; Coorientadora: Mara Eliane Soares Ribeiro. 2020. 14 f. Trabalho de Curso (Bacharelado em Odontologia) – Faculdade de Odontologia, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, 2020. Disponível em: https://bdm.ufpa.br/handle/prefix/10111. Acesso em:.https://bdm.ufpa.br/handle/prefix/10111Background: With the incorporation of remineralizers / desensitizers in the bleaching gels, as an attempt to minimize the adverse effects caused by the therapy, it causes uncertainty if it is still necessary to perform coronal polishing and topical application of fluoride at the end of a professional bleaching session. Aims: Evaluate the influence of polishing and the application of neutral sodium fluoride on the enamel after bleaching with 35% hydrogen peroxide (HP 35%) containing calcium on the substrate microhardness and surface roughness. Methods: Fifty healthy bovine incisor teeth were used, divided into 5 groups (n = 10): G1- negative control; G2: tooth bleaching; G3: tooth bleaching + coronal polishing with diamond paste; G4: tooth bleaching + topical application of fluoride; G5: tooth bleaching + coronal polishing with diamond paste + topical application of fluoride. The microhardness and roughness readings were performed on the same specimens, at times T0 (before treatments) and T1 (at the end of the 3 whitening sessions). The data showed normal distribution (Shapiro Wilk test) and the t test for related samples was performed with a significance level of 5%. Results: Lower values of roughness (with statistical difference) were found in G3, G4 and G5, with a lower average in T1 in G5. There was a reduction in microhardness for all evaluated groups, which was not statistically significant in G1 and G5. Conclusion: Topical application of 2% sodium fluoride and enamel polishing after tooth whitening decreased the surface roughness and microhardness of the substrate. However, the topical application of fluoride seems to provide better results in relation to roughness when compared to the polish of the enamel.Acesso AbertoClareamento dentalEsmalte dentalFluoreto de SódioDurezaPropriedade superfícieTooth bleachingDental enamelSodium fluorideHardnessSurface propertyCNPQ::CIENCIAS DA SAUDE::ODONTOLOGIATrabalho de Curso - Graduação - ArtigoAttribution-NonCommercial-NoDerivs 3.0 Brazil