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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/45497
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dc.creatorBruno Dalepranept_BR
dc.creatorCarolina Nemésio Barros Pereirapt_BR
dc.creatorAudrey Cristina Buenopt_BR
dc.creatorRaquel Conceição Ferreirapt_BR
dc.creatorAllyson Nogueira Moreirapt_BR
dc.creatorCláudia Silami de Magalhãespt_BR
dc.date.accessioned2022-09-24T21:32:30Z-
dc.date.available2022-09-24T21:32:30Z-
dc.date.issued2016-04-14-
dc.citation.volume116pt_BR
dc.citation.issue03pt_BR
dc.citation.spage416pt_BR
dc.citation.epage424pt_BR
dc.identifier.issn0022-3913pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/45497-
dc.description.resumoStatement of problem: Decementation is one of the most frequent causes of failure in the post-cement system. The bond strength in different parts of the canal may be influenced by technical and anatomic factors. Purpose: The purpose of this in vitro study was to assess the effects of anatomic root levels to reach the canal and different resin cements on the bond strength of fiberglass posts along the canal. Material and methods: One hundred thirty-five roots of bovine teeth were endodontically treated, prepared with 15-mm-long post spaces and divided according to the anatomic root level: coronal (with 15-mm post space), middle (with 10-mm post space), and apical (with 5-mm post space). Fiberglass posts were luted with the cements (n=15): conventional resin cement with 3-step etch-and-rinse adhesive system (RelyX ARC/SBMP); self-adhesive resin cement (RelyX U200) and autopolymerizing resin cement with etch-and-rinse adhesive system (C&B/All-Bond 2). After 24 hours, specimens were sectioned and subjected to the push-out test. The maximum extrusion load was recorded (0.5 mm/minute, 200 N). Data were analyzed with analysis of variance (ANOVA) and the Tukey test (α=.05). Failure mode was analyzed by using multinomial logistic regression. Results: There were no significant effects of resin cements (P>.05). The bond strength at apical third was higher when the canal was reached at the apical level than at the coronal level (P=.022). When each root level was directly reached, the coronal bond strength was lower than apical (P=.001) and middle (P=.021) for all cements. Conclusions: When the canal was reached at the coronal, medium, and apical levels, the bond strength of conventional, self-adhesive and autopolymerizing resin cements was lower in the coronal root third.pt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE CLÍNICApt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORApt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA SOCIAL E PREVENTIVApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofThe Journal of Prosthetic Dentistrypt_BR
dc.rightsAcesso Restritopt_BR
dc.subject.otherResin cementspt_BR
dc.subject.otherRoot canal therapypt_BR
dc.titleBond strength of fiber posts to the root canal: effects of anatomic root levels and resin cementspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.thejpd.org/article/S0022-3913(16)00141-4/fulltextpt_BR
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