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dc.contributor.authorMelo, Mary Anne Sampaio de-
dc.contributor.authorGoes, Diego da Costa-
dc.contributor.authorMoraes, Maria Denise Rodrigues de-
dc.contributor.authorSantiago, Sérgio Lima-
dc.contributor.authorRodrigues, Lidiany Karla Azevedo-
dc.date.accessioned2013-11-26T13:50:08Z-
dc.date.available2013-11-26T13:50:08Z-
dc.date.issued2013-05-
dc.identifier.citationMELO, M. A. S. et al. Effect of chlorhexidine on the bond strength of a self-etch adhesive system to sound and demineralized dentin. Brazilian Oral Research, São Paulo v. 27, n. 3, p. 218-224, maio/jun. 2013.pt_BR
dc.identifier.issn1806-8324-
dc.identifier.urihttp://www.repositorio.ufc.br/handle/riufc/6836-
dc.language.isoenpt_BR
dc.publisherBrazilian Oral Researchpt_BR
dc.subjectAdesivos Dentináriospt_BR
dc.subjectClorexidinapt_BR
dc.subjectDentinapt_BR
dc.titleEffect of chlorhexidine on the bond strength of a self-etch adhesive system to sound and demineralized dentinpt_BR
dc.typeArtigo de Periódicopt_BR
dc.description.abstract-ptbrThis study evaluated the effect of a 2% chlorhexidine-based disinfectant (CHX) on the short-term resin-dentin bond strength of a self-etch adhesive system to human dentin with different mineral contents. Dentinal mineralization was tested at 4 levels (sound, and after 2, 4, or 8 days of demineralization-remineralization cycles) and disinfectant at 2 levels [deionized water (DW, negative control) and CHX]. Dentin demineralization induced by pH-cycling was characterized by crosssectional hardness (CSH). Each dentin surface was divided into halves, one treated with DW and the other with CHX (5 minutes). Each surface was bonded with a self-etch adhesive system and restored. The specimens were sectioned and subjected to microtensile bond testing. CSH and microtensile bond strength (μTBS) data were analyzed by regression analysis and ANOVA-Tukey tests (α = 5%), respectively. The groups treated with CHX resulted in mean μTBS similar to those found for the groups in which the dentin was exposed to DW (p = 0.821). However, mean μTBS were strongly influenced by dentin mineralization (p < 0.05): the bond strength found for sound dentin was lower than that found for dentin cycled for 8 days, which was even lower than the bond strengths for dentin cycled for 2 or 4 days. The results suggest that the degree of dentin demineralization affects the bond strength of self-etching adhesives, but the use of CHX does not modify this effect.pt_BR
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