Fracture resistance of bleached teeth restored with different procedures

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dc.contributor.authorBandeca, Matheus Coelho [UNESP]
dc.contributor.authorPinto, Shelon Cristina Souza [UNESP]
dc.contributor.authorCalixto, Luiz Rafael [UNESP]
dc.contributor.authorSaad, José Roberto Cury [UNESP]
dc.contributor.authorBarros, Érico Luiz Damasceno
dc.contributor.authorEl-Mowafy, Omar
dc.contributor.authorPorto Neto, Sizenando de Toledo [UNESP]
dc.contributor.institutionUNICEUMA Department of Dentistry
dc.contributor.institutionUniversity of Toronto Department of Restorative Dentistry
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:46:58Z
dc.date.available2014-05-20T13:46:58Z
dc.date.issued2012-08-01
dc.description.abstractThis study evaluated the fracture resistance of teeth submitted to internal bleaching and restored with different non-metallic post. Eighty mandibular incisors were endodontically treated and randomly divided in 10 groups (n = 8): G1- restored with composite resin (CR), G2- CR + fiber-reinforced composite post (FRC, Everstick post, Sticktech) cemented with resin cement self-etch adhesive (RCS, Panavia F 2.0, Kuraray), G3- CR + FRC + self-adhesive resin cement (SRC, Breeze, Pentral Clinical), G4- CR+ glass fiber post (GF, Exacto Post, Angelus) + RCS, G5- CR + GF + SRC. The G6 to G10 were bleached with hydrogen peroxide (HP) and restored with the same restorative procedures used for G1 to G5, respectively. After 7 days storage in artificial saliva, the specimens were submitted to the compressive strength test (N) at 0.5 mm/min cross-head speed and the failure pattern was identified as either reparable (failure showed until 2 mm below the cement-enamel junction) or irreparable (the failure showed <2 mm or more below the cement-enamel). Data were analyzed by ANOVA and Tukey test (α = 0.05). No significant difference (p < 0.05) was found among G1 to G10. The results suggest that intracoronal bleaching did not significantly weaken the teeth and the failure patterns were predominately reparable for all groups. The non-metallic posts in these teeth did not improve fracture resistance.en
dc.description.affiliationUNICEUMA Department of Dentistry
dc.description.affiliationUniversity of Toronto Department of Restorative Dentistry
dc.description.affiliationUNESP Araraquara Dental School Department of Restorative Dentistry
dc.description.affiliationUnespUNESP Araraquara Dental School Department of Restorative Dentistry
dc.format.extent500-505
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392012005000063
dc.identifier.citationMaterials Research. ABM, ABC, ABPol, v. 15, n. 4, p. 500-505, 2012.
dc.identifier.doi10.1590/S1516-14392012005000063
dc.identifier.fileS1516-14392012000400003.pdf
dc.identifier.issn1516-1439
dc.identifier.lattes1541792949750106
dc.identifier.lattes7751829021886075
dc.identifier.scieloS1516-14392012000400003
dc.identifier.urihttp://hdl.handle.net/11449/16661
dc.identifier.wosWOS:000308134300003
dc.language.isoeng
dc.publisherABM, ABC, ABPol
dc.relation.ispartofMaterials Research
dc.relation.ispartofjcr1.103
dc.relation.ispartofsjr0,398
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectdental bleachingen
dc.subjectfracture resistanceen
dc.subjectfiber postsen
dc.subjectcomposite resinen
dc.titleFracture resistance of bleached teeth restored with different proceduresen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/mr/paboutj.htm
unesp.author.lattes1541792949750106
unesp.author.lattes7751829021886075
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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Artigos - Odontologia Restauradora - FOAR