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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/44287
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dc.creatorFrancisco Ivison Rodrigues Limeirapt_BR
dc.creatorMonize Ferreira Figueiredo de Carvalhopt_BR
dc.creatorViviane Valquíria do Nascimentopt_BR
dc.creatorCaroline Christine Santa Rosapt_BR
dc.creatorMônica Yamautipt_BR
dc.creatorAllyson Nogueira Moreirapt_BR
dc.creatorCláudia Silami Magalhãespt_BR
dc.date.accessioned2022-08-16T18:37:30Z-
dc.date.available2022-08-16T18:37:30Z-
dc.date.issued2019-
dc.citation.volume21pt_BR
dc.citation.issue5pt_BR
dc.citation.spage423pt_BR
dc.citation.epage431pt_BR
dc.identifier.doi10.3290/j.jad.a43180pt_BR
dc.identifier.issn14615185pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/44287-
dc.description.resumoPurpose: To evaluate the effect of human and bovine root dentin age on the bond strength of fiber posts fixed with resin cements. The degree of conversion (DC) of the resin cements in different root thirds also was evaluated. Materials and Methods: Ninety-six single-rooted teeth were divided into groups according to the origin and age: young human (20-30 years), old human (over 60 years), young bovine (24-36 months) and adult bovine (over 48 months). The teeth were endodontically treated, and fiber posts were cemented with resin cements (RelyX Ultimate and RelyX U200). After 24 h, the teeth were sectioned perpendicularly and the push-out test was performed in a universal testing machine at a speed of 0.5 mm/min, until failure. One specimen from each third from each group (n = 6) was selected, and the DC of the resin cements was analyzed by FT-Raman spectroscopy. Results: For both resin cements, the young human root dentin group presented the highest bond strengths and the old human root dentin group presented the lowest (p < 0.05). The bond strengths of bovine root dentin groups were not affected by aging (p > 0.05). For the DC of resin cements, there were differences among the root thirds (p < 0.05), with the lowest values observed in the apical third. Conclusions: The bond strengths were higher in the young human root canal than in the bovine substrate, with a negative effect of aging in the human substrate. The DC of dual-curing resin cements decreased from the coronal to apical root thirds.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Adhesive Dentistrypt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectAgingpt_BR
dc.subjectBond strengthpt_BR
dc.subjectDegree of conversionpt_BR
dc.subjectRoot dentinpt_BR
dc.subjectBovine toothpt_BR
dc.subjectHuman toothpt_BR
dc.subject.otherAgingpt_BR
dc.subject.otherToothpt_BR
dc.subject.otherDentinpt_BR
dc.titleBond strength of resin cements fixing fiber posts to human and bovine teeth of different agespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.quintessence-publishing.com/deu/en/article/843497pt_BR
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