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dc.contributor.authorLeonardo, Renato de Toledo-
dc.contributor.authorKuga, Milton Carlos-
dc.contributor.authorGuiotti, Flavia Angelica-
dc.contributor.authorAndolfatto, Carolina-
dc.contributor.authorFaria-Junior, Norberto Batista de-
dc.contributor.authorCampos, Edson Alves de-
dc.contributor.authorKeine, Katia Cristina-
dc.contributor.authorDantas, Andrea Abi Rached-
dc.date.accessioned2015-08-06T16:13:23Z-
dc.date.accessioned2016-10-25T20:53:55Z-
dc.date.available2015-08-06T16:13:23Z-
dc.date.available2016-10-25T20:53:55Z-
dc.date.issued2014-
dc.identifierhttp://www.jaypeejournals.com/eJournals/Abstract.aspx?id=6045&AID=24&num=11-
dc.identifier.citationThe Journal of Contemporary Dental Practice, v. 15, n. 2, p. 186-189, 2014.-
dc.identifier.issn1526-3711-
dc.identifier.urihttp://hdl.handle.net/11449/125888-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/125888-
dc.description.abstractAim: The aim of this study was to evaluate the fracture resistance of teeth submitted to several internal bleaching protocols using 35% hydrogen peroxide (35HP), 37% carbamide peroxide (37CP), 15% hydrogen peroxide with titanium dioxide nanoparticles (15HPTiO2) photoactivated by LED-laser or sodium perborate (SP). Materials and methods: After endodontic treatment, fifty bovine extracted teeth were divided into five groups (n = 10): G1-unbleached; G2-35HP; G3-37CP; G4-15HPTiO2 photoactivated by LED-laser and G5-SP. In the G2 and G4, the bleaching protocol was applied in 4 sessions, with 7 days intervals between each session. In the G3 and G5, the materials were kept in the pulp teeth for 21 days, but replaced every 7 days. After 21 days, the teeth were subjected to compressive load at a cross head speed of 0.5 mm/min, applied at 135° to the long axis of the root using an eletromechanical testing machine, until teeth fracture. The data were submitted to ANOVA and Tukey tests (α = 5%). Results: The 35HP, 37CP, 15HPTiO2 and SP showed similar fracture resistance teeth reduction (p > 0.05). All bleaching treatments reduced the fracture resistance compared to unbleached teeth (p < 0.05). Conclusion: All bleaching protocols reduced the fracture resistance of endodontically-treated teeth, but there were no differences between each other. Clinical significance: There are several internal bleaching protocols using hydrogen peroxide in different concentrations and activation methods. This study evaluated its effects on fracture resistance in endodontically-treated teeth.en
dc.format.extent186-189-
dc.language.isoeng-
dc.sourceCurrículo Lattes-
dc.subjectNanoparticlesen
dc.subjectPeroxidesen
dc.subjectTooth bleachingen
dc.titleFracture resistance of teeth submitted to several internal bleaching protocolsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal do Rio Grande do Norte (UFRN)-
dc.description.affiliationUniversidade Federal do Rio Grande do Norte, Departamento de Odontologia-
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara-
dc.identifier.doihttp://dx.doi.org/10.5005/jp-journals-10024-1512-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofThe Journal of Contemporary Dental Practice-
dc.identifier.lattes7460825090327014-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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