A critical evaluation of bond strength tests for the assessment of bonding to Y-TZP

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dc.contributor.authorOtani, Aline
dc.contributor.authorAmaral, Marina [UNESP]
dc.contributor.authorMay, Liliana G.
dc.contributor.authorCesar, Paulo F.
dc.contributor.authorValandro, Luiz Felipe [UNESP]
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2015-10-22T07:08:34Z
dc.date.available2015-10-22T07:08:34Z
dc.date.issued2015-06-01
dc.description.abstractObjectives. To compare three different designs for measuring the bond strength between Y-TZP ceramic and a composite material, before and after ceramic surface treatment, evaluating the influence of the size of the adhesive interface for each design.Methods. 'Macro'tensile, microtensile, 'macro'shear, microshear, 'macro'push-out, and micropush-out tests were carried out. Two Y-TZP surface treatments were evaluated: silanization (sil) and tribochemical silica coating (30 mu m silica-modified Al2O3 particles + silanization) (TBS). Failure mode analysis of tested samples was also performed. Results. Both the surface treatment and the size of the bonded interface significantly affected the results (p = 0.00). Regardless of the type of surface treatment, the microtensile and microshear tests had higher values than their equivalent "macro" tests. However, the push-out test showed the highest values for the "macro" test. The tensile tests showed the greatest variability in results. The tribochemical silica coating method significantly increased bond strength for all tests.Significance. Different test designs can change the outcome for Y-TZP/cement interfaces, in terms of mean values and reliability (variability). The 'micro'tests expressed higher bond strengths than their equivalent 'macro'tests, with the exception of the push-out test (macro > micro). (C) 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.en
dc.description.affiliationProsthodontics Unit, Faculty of Odontology, Federal University of Santa Maria, Santa Maria, Brazil
dc.description.affiliationDepartment of Biomaterials and Oral Biology, University of Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUnespScience and Technology Institute, São Jose dos Campos Dental School, São Paulo State University, Brazil
dc.format.extent648-656
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0109564115000767
dc.identifier.citationDental Materials. Oxford: Elsevier Sci Ltd, v. 31, n. 6, p. 648-656, 2015.
dc.identifier.doi10.1016/j.dental.2015.03.002
dc.identifier.issn0109-5641
dc.identifier.urihttp://hdl.handle.net/11449/129789
dc.identifier.wosWOS:000354118900004
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofDental Materials
dc.relation.ispartofjcr4.039
dc.relation.ispartofsjr2,106
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCeramicsen
dc.subjectY-TZPen
dc.subjectAdhesionen
dc.subjectResin cementen
dc.subjectSilica coatingen
dc.subjectMechanical testen
dc.subjectWeibull analysisen
dc.subjectReliabilityen
dc.titleA critical evaluation of bond strength tests for the assessment of bonding to Y-TZPen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-4301-2760[2]
unesp.author.orcid0000-0001-5834-105X[4]
unesp.author.orcid0000-0001-7203-6924[5]

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