Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness
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Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness

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Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness

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dc.contributor.author Vieira, Isabele es
dc.contributor.author Vieira-Junior, Waldemir-Francisco es
dc.contributor.author Pauli, Maria-Cibelle es
dc.contributor.author Theobaldo, Jéssica-Dias es
dc.contributor.author Aguiar, Flávio Henrique Baggio es
dc.contributor.author Lima, Débora Alves Nunes Leite es
dc.contributor.author Leonardi, Gislaine-Ricci es
dc.date.accessioned 2020-10-21T11:36:07Z
dc.date.available 2020-10-21T11:36:07Z
dc.date.issued 2020 es
dc.identifier.uri https://hdl.handle.net/10550/75991
dc.description.abstract Commercial bleaching gels with remineralizing agents were developed to reduce the adverse effects of dental bleaching. The present study evaluated the effects on teeth of in-office bleaching gels containing 35-40% hydrogen peroxide (HP) with Calcium (Ca) or Fluoride (F). Bovine enamel/dentin blocks (4x4x2.5 mm) were randomly divided into the following groups (n=12): no treatment (control); 35% HP (Whiteness HP, FGM); 35% HP with Ca (Whiteness HP Blue, FGM); 40% HP with F (Opalescence Boost, Ultradent). The specimens were analyzed for color (?L*, ?a*, ?b*, and ?E), roughness (Ra), and Knoop microhardness (KHN). The color and KHN data were submitted to ANOVA and Tukey?s test, while Ra values were analyzed using mixed models for repeated measures and Tukey-Kramer?s test (?=0.05). The bleached groups did not exhibit statistical differences among them for color. For roughness, 35% HP provided a slight increase of Ra, which was statistically different from the control. For microhardness, 35% HP and 40% HP with F presented KHN values that were statistically lower from the control, while the 35% HP with Ca did not statistically differ from the control. The presence of Ca or F in bleaching gels did not interfere with bleaching efficacy. However, only the enamel exposed to the bleaching gel containing Ca obtained microhardness values similar to unbleached enamel. es
dc.source Vieira, Isabele ; Vieira-Junior, Waldemir-Francisco ; Pauli, Maria-Cibelle ; Theobaldo, Jéssica-Dias ; Aguiar, Flávio Henrique Baggio ; Lima, Débora Alves Nunes Leite ; Leonardi, Gislaine-Ricci. Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness. En: Journal of Clinical and Experimental Dentistry, 12 2 2020: 116-122 es
dc.title Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness es
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.56006 es

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