Effectiveness of dental bleaching in depth after using different bleaching agents
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Effectiveness of dental bleaching in depth after using different bleaching agents

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Effectiveness of dental bleaching in depth after using different bleaching agents

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dc.contributor.author D'Arce, Maria Beatriz Freitas es
dc.contributor.author Lima, Débora Alves Nunes Leite es
dc.contributor.author Aguiar, Flávio Henrique Baggio es
dc.contributor.author Bertoldo, Eduardo dos Santos es
dc.contributor.author Bovi Ambrosano, Gláucia María es
dc.contributor.author Lovadino, José Roberto es
dc.date.accessioned 2014-05-22T09:37:35Z
dc.date.available 2014-05-22T09:37:35Z
dc.date.issued 2013 es
dc.identifier.uri http://hdl.handle.net/10550/35325
dc.source D'Arce, Maria Beatriz Freitas ; Lima, Débora Alves Nunes Leite ; Aguiar, Flávio Henrique Baggio ; Bertoldo, Eduardo dos Santos ; Bovi Ambrosano, Gláucia María ; Lovadino, José Roberto. Effectiveness of dental bleaching in depth after using different bleaching agents. En: Journal of Clinical and Experimental Dentistry, 2013, Vol. 5, No. 2: 100-107 es
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Effectiveness of dental bleaching in depth after using different bleaching agents 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.description.abstractenglish Objectives: This study evaluated the effectiveness of low- and high-concentration bleaching agents on enamel and deep dentin. Study design: Stained bovine incisors fragments were randomized placed into 10 groups (n=5), according to the sample thicknesses (2.0 mm or 3.5 mm) and bleaching agent: 10% carbamide peroxide (CP) (4 h a day/21 days); 6% hydrogen peroxide (HP) with calcium (1:30 h a day/21 days); HP 20% with calcium (50 min a day/3 sessions with a 7-day interval); HP 35% (3 x 15 min a day/3 sessions with a 7-day interval); HP 35% with calcium (40 min a day/3 sessions with a 7-day interval). The samples were stored in artificial saliva during the experiment. The co - lor change was evaluated using a spectrophotometer at the initial analysis, after artificially staining with black tea and after each of the bleaching weeks, and data was expressed in CIE Lab System values. The L* coordinate data was submitted to analysis of variance and Tukey-Kramer test and the ?E values data was submitted for analysis of variance in a split-plot ANOVA and Tukey's test (?=0.05). Results: None of the bleaching agents tested differed from the reflectance values on the enamel surface. For deep dentin HP 20% and HP 35%, both with calcium, showed the lowest reflectance values, which differed from CP 10%. Conclusion: It is concluded that high concentration hydrogen peroxide with calcium was less effective in deep dentin than 10% carbamide peroxide. es

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