You are in the accessibility menu

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/116616
Full metadata record
DC FieldValueLanguage
dc.contributor.authorPereira, G. K. R.-
dc.contributor.authorAmaral, Marina-
dc.contributor.authorSimoneti, R.-
dc.contributor.authorRocha, G. C.-
dc.contributor.authorCesar, P. F.-
dc.contributor.authorValandro, L. F.-
dc.date.accessioned2015-03-18T15:53:36Z-
dc.date.accessioned2016-10-25T20:25:13Z-
dc.date.available2015-03-18T15:53:36Z-
dc.date.available2016-10-25T20:25:13Z-
dc.date.issued2014-09-01-
dc.identifierhttp://dx.doi.org/10.1016/j.jmbbm.2014.05.010-
dc.identifier.citationJournal Of The Mechanical Behavior Of Biomedical Materials. Amsterdam: Elsevier Science Bv, v. 37, p. 133-140, 2014.-
dc.identifier.issn1751-6161-
dc.identifier.urihttp://hdl.handle.net/11449/116616-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/116616-
dc.description.abstractThis study compared the effects of grinding on the surface micromorphology, phase transformation (t -> m), biaxial flexural strength and structural reliability (Weibull analysis) of a Y-TZP (Lava) ceramic using diamond-discs and -burs. 170 discs (15 x 1.2 mm) were produced and divided into 5 groups: without treatment (Ctrl, as-sintered), and ground with 4 different systems: extra-fine (25 mu m, Xfine) and coarse diamond-bur (181 mu m, Coarse), 600-grit (25 mu m, D600) and 120-grit diamond-disc (160 mu m, D120). Grinding with burs was performed using a contra-angle handpiece (T2-Revo R170, Sirona), while for discs (Allied) a Polishing Machine (Ecomet, Buehler) was employed, both under water-cooling. Micromorphological analysis showed distinct patterns generated by grinding with discs and burs, independent of grit size. There was no statistical difference for characteristic strength values (MPa) between smaller grit sizes (D600 - 1050.08 and Xfine - 1171.33), although they presented higher values compared to Ctrl (917.58). For bigger grit sizes, a significant difference was observed (Coarse - 1136.32>D120-727.47). Weibull Modules were statistically similar between the tested groups. Within the limits of this study, from a micromorphological point-of-view, the treatments performed did not generate similar effects, so from a methodological point-of-view, diamond-discs should not be employed to simulate clinical abrasion performed with diamond-burs on Y-TZP ceramics. (C) 2014 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipFAPERGS (Foundation for Research Support of Rio Grande do Sul State, Brazil)-
dc.format.extent133-140-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectGrindingen
dc.subjectZirconium oxide partially stabilized by yttriumen
dc.subjectMechanical propertiesen
dc.titleEffect of grinding with diamond-disc and -bur on the mechanical behavior of a Y-TZP ceramicen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.description.affiliationUniv Fed Santa Maria, Fac Odontol, BR-97015372 Santa Maria, RS, Brazil-
dc.description.affiliationSao Paulo State Univ UNESP, Fac Odontol, Inst Sci & Technol, Sao Jose Dos Campos, Brazil-
dc.description.affiliationUniv Sao Paulo, Fac Odontol, Sao Paulo, Brazil-
dc.description.affiliationUnespSao Paulo State Univ UNESP, Fac Odontol, Inst Sci & Technol, Sao Jose Dos Campos, Brazil-
dc.identifier.doi10.1016/j.jmbbm.2014.05.010-
dc.identifier.wosWOS:000340987100014-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal Of The Mechanical Behavior Of Biomedical Materials-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.
 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.