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Chemical composition and roughness of enamel and composite after bleaching, acidic beverages and toothbrushing

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Chemical composition and roughness of enamel and composite after bleaching, acidic beverages and toothbrushing

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dc.contributor.author Pinelli, Marília-de-Morais es
dc.contributor.author Catelan, Anderson es
dc.contributor.author de Resende, Luís-Felipe-Marques es
dc.contributor.author Soares, Luís-Eduardo-Silva es
dc.contributor.author Aguiar, Flávio Henrique Baggio es
dc.contributor.author Liporoni, Priscila-Christiane-Suzy es
dc.date.accessioned 2020-02-05T08:58:59Z
dc.date.available 2020-02-05T08:58:59Z
dc.date.issued 2019 es
dc.identifier.citation Pinelli, Marília-de-Morais ; Catelan, Anderson ; de Resende, Luís-Felipe-Marques ; Soares, Luís-Eduardo-Silva ; Aguiar, Flávio Henrique Baggio ; Liporoni, Priscila-Christiane-Suzy. Chemical composition and roughness of enamel and composite after bleaching, acidic beverages and toothbrushing. En: Journal of Clinical and Experimental Dentistry, 11 12 2019: 1175-1180 es
dc.identifier.uri https://hdl.handle.net/10550/72901
dc.description.abstract In this study was assessed the surface roughness and chemical composition of tooth enamel and composite resin after bleaching treatment, immersion in acidic beverages, and simulated toothbrushing. One hundred and twenty dental blocks (10 x 10 x 3 mm) were randomly assigned (n = 10) according to surface treatment [none (N), bleaching (B), toothbrushing (T), and B+T] and storage medium [saliva (S), whiskey (W), and orange juice (O)]: experimental groups - N+S, N+W, N+O, B+S, B+W, B+O, S+T, W+T, O+T, B+S+T, B+W+T, and B+O+T. Two bleaching sessions were conducted using 38% hydrogen peroxide (3 applications). Surface roughness was measured using a roughness tester and composition was determined by micro energy-dispersive X-ray fluorescence spectrometry (µ-EDXRF) before and after treatments. Calcium/phosphorus (Ca/P) ratio in enamel and silica (Si) content in composite were evaluated. Data were statistically analyzed by ANOVA and Tukey?s test (? = 0.05). Overall, increased values of surface roughness for enamel and composite were observed mainly after immersion in orange juice and bleaching/toothbrushing association. Moreover, this association and immersion in whiskey resulted in lower Ca/P ratio and after aging methods, bleached and bleached/toothbrushed groups showed decreased in Ca/P ratio compared to initial values. All groups showed Si content decrease at the end, except the group without surface treatment and immersed in saliva, and bleaching followed by immersion in orange juice and toothbrushing caused the highest Si reduction. Bleaching and toothbrushing combination strengthened the effects caused by acidic drinks on roughness and chemical composition of enamel and composite. es
dc.title Chemical composition and roughness of enamel and composite after bleaching, acidic beverages and toothbrushing es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.56442 es
dc.type.hasVersion VoR es_ES

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