Fatigue strength of 5Y-FSZ: glazing and polishing effects

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dc.contributor.authorde Carvalho, Ana Beatriz Gomes [UNESP]
dc.contributor.authorGonçalves, Natália Inês [UNESP]
dc.contributor.authorCampos, Tiago Moreira Bastos
dc.contributor.authorZucuni, Camila
dc.contributor.authorValandro, Luiz Felipe
dc.contributor.authorde Siqueira Ferreira Anzaloni Saavedra, Guilherme [UNESP]
dc.contributor.authorBottino, Marco Antonio [UNESP]
dc.contributor.authorde Assunção e Souza, Rodrigo Othávio
dc.contributor.authorde Melo, Renata Marques [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionAeronautic Technological Institute (ITA)
dc.contributor.institutionFederal University of Santa Maria
dc.contributor.institutionFederal University of Rio Grande Do Norte
dc.date.accessioned2023-03-01T22:02:13Z
dc.date.available2023-03-01T22:02:13Z
dc.date.issued2022-06-01
dc.description.abstractObjective: The aim of this study was to evaluate the effect of four different finishing procedures on the fatigue strength of a fully stabilized zirconia (5Y-FSZ) material. Materials and methods: Disc-shaped specimens of a 5Y-FSZ (Katana UTML, Kuraray Noritake) were made (ISO 6872–2015), grinded with 600- and 1200-grit silicon carbide paper, sintered as recommended, and randomly assigned into four groups according to the finishing technique: C (control, as-sintered), P (polished with polishing rubbers), G (glaze application – powder/liquid technique), and PG (polished with polishing rubbers + glaze application – powder/liquid). Then fatigue strength (staircase method), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analyses were performed. Results: The C group presented the lowest fatigue strength, while the PG group presented the highest. The P and G groups presented intermediate behavior, presenting similar statistical results. XRD showed similar crystalline phase patterns for all groups. SEM images revealed some changes in the zirconia surface, with the P group presenting some scratches on the surface, while the scratches in the PG group were filled with the glaze material. Conclusion: None of the techniques analyzed in this study impaired the fatigue strength of fully stabilized zirconia. Importantly, the polishing rubbers combined with glaze application (PG group) improved its fatigue strength. Clinical relevance: The polishing rubbers followed by glaze application improve the fatigue strength in ultra-translucent zirconia.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University, 777, Engenheiro Francisco José Longo Avenue
dc.description.affiliationAeronautic Technological Institute (ITA), 50, Marechal Eduardo Gomes Square, SP
dc.description.affiliationFaculty of Odontology Post-Graduate Program in Oral Science Prosthodontic Unit Federal University of Santa Maria, 1184, Marechal Floriano Peixoto Street, RS
dc.description.affiliationDepartment of Dentistry Prosthodontic Unit Federal University of Rio Grande Do Norte, 1787, Senador Salgado Filho Avenue, RN
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University, 777, Engenheiro Francisco José Longo Avenue
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCAPES: #1
dc.format.extent4479-4486
dc.identifierhttp://dx.doi.org/10.1007/s00784-022-04412-1
dc.identifier.citationClinical Oral Investigations, v. 26, n. 6, p. 4479-4486, 2022.
dc.identifier.doi10.1007/s00784-022-04412-1
dc.identifier.issn1436-3771
dc.identifier.issn1432-6981
dc.identifier.scopus2-s2.0-85128271991
dc.identifier.urihttp://hdl.handle.net/11449/241738
dc.language.isoeng
dc.relation.ispartofClinical Oral Investigations
dc.sourceScopus
dc.subjectDental zirconia
dc.subjectFatigue
dc.subjectGlazing
dc.subjectStaircase method
dc.subjectSurface treatments
dc.titleFatigue strength of 5Y-FSZ: glazing and polishing effectsen
dc.typeArtigo
unesp.author.orcid0000-0003-0752-6294[9]

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