2015-11-162015-11-162010-06PINHEIRO, Helena Burlamaqui et al. Influence of bioactive materials used on the dentin surface whitened with carbamide peroxide 16%. Materials Research, São Carlos, v. 13, n. 2, p. 273-278, jun. 2010. Disponível em: <http://www.scielo.br/pdf/mr/v13n2/24.pdf>. Acesso em: 13 nov. 2015. <http://dx.doi.org/10.1590/S1516-14392010000200024>.1516-1439https://repositorio.ufpa.br/handle/2011/6996This study investigated the influence of bioactive materials on the dentin surface whitened. MATERIAL AND METHODS: Three bovine teeth were shaped into three dentin wafers. Each wafer was then sectioned, into six dentin slices. One slice from each tooth was distributed into one of 6 groups: 1.CG = control group (distilled water); 2.WT = whitening treatment; 3.WT + MI Paste Plus, applied once a day; 4.WT + Relief ACP30, applied once a day for 30 mintes; 5.WT + Relief ACP60, applied once a day for 60 minutes; 6.WT + Biosilicate®, applied once a week. All groups were treated over 14 days. RESULTS: CG presented all dentinal tubules occluded by smear layer; WT group was observed all dentinal tubules opened. In the groups 3, 4 and 6, tubules were occluded. Group 5, dentinal tubules were completely occluded by mineral deposits. CONCLUSION: The use of bioactive materials immediately after whitening treatment can reduce or even avoid the demineralization effect of whitening and avoid exposing dentinal tubules.engAcesso AbertoDentinaRemineralização dentáriaClareamento dentalArtigo de Periódico