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dc.contributor.authorNishioka, Gabriela [UNESP]
dc.contributor.authorProchnow, Catina
dc.contributor.authorFirmino, Aline [UNESP]
dc.contributor.authorAmaral, Marina
dc.contributor.authorBottino, Marco Antonio [UNESP]
dc.contributor.authorValandro, Luiz Felipe
dc.contributor.authorRenata Marques de, Melo [UNESP]
dc.date.accessioned2018-12-11T17:37:49Z
dc.date.available2018-12-11T17:37:49Z
dc.date.issued2018-06-11
dc.identifierhttp://dx.doi.org/10.1590/1807-3107bor-2018.vol32.0053
dc.identifier.citationBrazilian oral research, v. 32, p. e53-.
dc.identifier.issn1807-3107
dc.identifier.urihttp://hdl.handle.net/11449/180052
dc.description.abstractThis in vitro study evaluated the fatigue strength of different ceramic materials indicated for monolithic restorations. Disc-shaped specimens were made according to ISO 6872 from five different ceramic materials: feldspathic ceramic (FC), polymer-infiltrated ceramic network (PIC), lithium disilicate glass-ceramic (LD), zirconia-reinforced lithium silicate glass-ceramic (ZLS), and high translucent tetragonal zirconia polycrystals doped by yttrium (YZ-HT). After obtaining the mean of each material (n = 5) from monotonic load-to-failure tests, specimens (n = 20) were subjected to fatigue tests (staircase method) using a biaxial flexural setup (piston-on-three-balls), to determine the fatigue strength. The parameters used for fatigue tests were: 100,000 cycles at 10 Hz, initial load of ~ 60% of mean load-to-failure, and step size of 5% of the initial load (specific for each ceramic material). Kruskal-Wallis and Bonferroni's test (α = 0.05) were used to analyze the fatigue strength data. Fatigue strength (MPa) of the materials was statistically different among each other as follows: YZ-HT (370.2 ± 38.7) > LD (175.2 ± 7.5) > ZLS (152.1 ± 7.5) > PIC (81.8 ± 3.9) > FC (50.8 ± 1.9). Thus, it can be concluded that, in terms of fatigue, high translucent polycrystalline zirconia is the best choice for monolithic restorations as it bears the highest load before cracking/fracturing.en
dc.format.extente53
dc.language.isoeng
dc.relation.ispartofBrazilian oral research
dc.sourceScopus
dc.titleFatigue strength of several dental ceramics indicated for CAD-CAM monolithic restorationsen
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.contributor.institutionPost-Graduate Program in Dentistry
dc.description.affiliationUniversidade Estadual Paulisa - Unesp Faculty of Odontology Department of Dental Materials and Prosthodontics
dc.description.affiliationUniversidade Federal de Santa Maria - UFSM Faculty of Odontology Department of Restorative Dentistry
dc.description.affiliationUniversidade de Taubaté - Unitau Faculty of Dentistry Post-Graduate Program in Dentistry
dc.description.affiliationUnespUniversidade Estadual Paulisa - Unesp Faculty of Odontology Department of Dental Materials and Prosthodontics
dc.identifier.doi10.1590/1807-3107bor-2018.vol32.0053
dc.identifier.scieloS1806-83242018000100245
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-85050441109
dc.identifier.fileS1806-83242018000100245.pdf
dc.identifier.lattes9234456003563666
unesp.advisor.lattes9234456003563666
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