Y-TZP surface behavior under two different milling systems and three different accelerated aging protocols

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dc.contributor.authorDal Piva, Amanda M. [UNESP]
dc.contributor.authorTribst, Joao Paulo [UNESP]
dc.contributor.authorGondim, Laisa D.
dc.contributor.authorRibeiro, Isabella L.
dc.contributor.authorCampos, Fernanda
dc.contributor.authorArata, Anelyse
dc.contributor.authorSouza, Rodrigo O.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionParaiba State University (UEPB)
dc.contributor.institutionIPEN-CNEN/SP
dc.contributor.institutionFederal University of Federal University of Rio Grande do Norte (UFRN)
dc.date.accessioned2019-10-06T15:26:12Z
dc.date.available2019-10-06T15:26:12Z
dc.date.issued2018-12-01
dc.description.abstractBACKGROUND: To evaluate the influence of aging and milling system on zirconia surface roughness (SR) and phase transformation. METHODS: Eighty crowns were divided in two groups according to yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramic milling system (CAD-Neodent or MAD-Zirkonzahn). The crowns were submitted to different aging protocols (N.=10): 1) no aging; 2) autoclaving; 3) pH cycling; or 4) thermocycling. Next, the samples were submitted to an optical profilometry analysis to determine differences in the S R (um). A n X-ray diffraction analysis (XRD) was performed to quantify the percentage of monoclinic phase transformation. SR data was analyzed by two-way A NOVA (a=0.5%). RESULTS: Aging protocol (P=0.42) and milling system (P=0.08) had no influence on the SR. However, the number of monoclinic phases was influenced by the autoclaving and pH cycling. CONCLUSIONS: The surface roughness of zirconia-based crowns was not influenced by low temperature degradation or milling system. Regarding the phase transformation, autoclaving and pH-cycling aging presented a monoclinic phase increase when compared to the control group and thermocycled groups.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Institute of Science and Technology Sao Paulo State University UNESP, Avenida Engenheiro Francisco Jose Longo 777
dc.description.affiliationFederal University of Paraiba (UFPB)
dc.description.affiliationDepartment of Social Odontology Federal University of Paraiba (UFPB)
dc.description.affiliationDepartment of Dentistry Paraiba State University (UEPB)
dc.description.affiliationNuclear and Energy Research Institute National Nuclear Energy Commission IPEN-CNEN/SP
dc.description.affiliationDivision of Prosthodontics Department of Restorative Dentistry Federal University of Federal University of Rio Grande do Norte (UFRN)
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Institute of Science and Technology Sao Paulo State University UNESP, Avenida Engenheiro Francisco Jose Longo 777
dc.format.extent234-245
dc.identifierhttp://dx.doi.org/10.23736/S0026-4970.18.04138-9
dc.identifier.citationMinerva Stomatologica, v. 67, n. 6, p. 234-245, 2018.
dc.identifier.doi10.23736/S0026-4970.18.04138-9
dc.identifier.issn1827-174X
dc.identifier.issn0026-4970
dc.identifier.scopus2-s2.0-85057572501
dc.identifier.urihttp://hdl.handle.net/11449/187122
dc.language.isoeng
dc.relation.ispartofMinerva Stomatologica
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectDental materials
dc.subjectProsthodontics
dc.subjectSurface properties
dc.subjectYttria-stabilized tetragonal zirconia
dc.titleY-TZP surface behavior under two different milling systems and three different accelerated aging protocolsen
dc.typeArtigo

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