Bond strength and Raman analysis of the zirconia-feldspathic porcelain interface

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dc.contributor.authorBorges, Ana Flávia Sanches
dc.contributor.authorRamos, Carla Muller
dc.contributor.authorMondelli, Rafael Francisco Lia
dc.contributor.authorCesar, Paulo
dc.contributor.authorTabata, Américo Sheitiro [UNESP]
dc.contributor.authorSantos, Juliete de Souza
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2016-03-02T13:03:35Z
dc.date.available2016-03-02T13:03:35Z
dc.date.issued2014
dc.description.abstractThe test groups were experimental zirconia, Zirkonzahn zirconia, and Schuetz zirconia. Blocks of partially sintered zirconia were cut into disks (n=20) and then veneered with a feldspathic porcelain. Half of the specimens from each group (n=10) were incubated in 37°C water for 24 hours, and the other half were thermocycled. All the specimens were then subjected to shear testing. The fractured areas were analyzed with optical stereomicroscopy and classified as adhesive, cohesive, or an adhesive-cohesive failure. Spectral patterns were examined to detect bands related to the zirconia and feldspathic porcelain phases. The shear strength data were submitted to 2-way ANOVA. Results No significant differences in shear bond strength were observed among the 3 groups, regardless of whether or not the specimens were thermocycled. Adhesive failures were the most prevalent types of failure (70%). Raman spectra were clearly distinguished for all the materials, which showed the presence of tetragonal and monoclinic phases. Conclusions The controlled production of the experimental zirconia did not influence the results of the bond strength. Raman analysis suggested a process of interdiffusion by the presence of peaks associated with the zirconia and feldspathic ceramics.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Física, Faculdade de Ciências de Bauru, Bauru, Av. Eng. Luiz E.C. Coube S/N, CEP 17033-360, SP, Brasil
dc.description.affiliationDepartment of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
dc.description.affiliationDepartment of Biomaterials and Oral Biology, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
dc.description.affiliationDepartment of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
dc.description.affiliationDepartment of Physics, Faculty of Science, São Paulo State University, Bauru, SP, Brazil
dc.description.affiliationDepartment of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Física, Faculdade de Ciências de Bauru, Bauru, Av. Eng. Luiz E.C. Coube S/N, CEP 17033-360, SP, Brasil
dc.format.extent886-894
dc.identifierhttp://dx.doi.org/10.1016/j.prosdent.2014.02.009
dc.identifier.citationThe Journal of Prosthetic Dentistry, v. 112, n. 4, p. 886-894, 2014.
dc.identifier.doi10.1016/j.prosdent.2014.02.009
dc.identifier.issn0022-3913
dc.identifier.lattes9354064620643611
dc.identifier.urihttp://hdl.handle.net/11449/135621
dc.language.isoeng
dc.relation.ispartofThe Journal of Prosthetic Dentistry
dc.relation.ispartofjcr2.347
dc.relation.ispartofsjr1,087
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.titleBond strength and Raman analysis of the zirconia-feldspathic porcelain interfaceen
dc.typeArtigo
unesp.author.lattes9354064620643611[5]
unesp.author.orcid0000-0002-9389-0238[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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Bauru - FC - Faculdade de Ciências