The effects of heating rate and sintering time on the biaxial flexural strength of monolithic zirconia ceramics

dc.authorscopusid 12244378300
dc.authorscopusid 25822008700
dc.contributor.author Oyar, Perihan
dc.contributor.author Durkan, Rukiye
dc.date.accessioned 2024-05-25T11:38:43Z
dc.date.available 2024-05-25T11:38:43Z
dc.date.issued 2023
dc.department Okan University en_US
dc.department-temp [Oyar, Perihan] Hacettepe Univ, Hlth Serv Vocat High Sch, Dept Dent Prostheses Technol, D Block,3 Floor, TR-06100 Ankara, Turkiye; [Durkan, Rukiye] Istanbul Okan Univ, Fac Dent, Dept Prosthodont, Istanbul, Turkiye en_US
dc.description.abstract The strength of zirconia ceramic materials used in restorations is dependent upon sintering. Varying sintering protocols may affect the biaxial flexural strength of zirconia materials. This in vitro study was conducted to investigate the effects of sintering parameters on the biaxial flexural strength of monolithic zirconia. Two different monoblock zirconia ceramics were used. Following coloration, samples of both types of ceramics were divided into groups according to whether or not biaxial flexural strength testing was performed directly after sintering or following thermocycling. Biaxial flexural strength data was analysed with a Shapiro Wilk normality test, followed by 1-way ANOVA, Tukey post hoc tests for inter-group comparisons, and paired samples t-tests for intra-group comparisons. A significant difference was found between the biaxial flexural strengths of Zircon X and Upcera ceramics before thermocycling (p < 0.05). In both Zircon X and Upcera ceramic groups, the thermocycling process created a significant difference in the biaxial flexural strength values of the ceramic samples in Group 6 (p < 0.05) which had the slowest heating rate and longest holding time. The zirconia ceramics have higher BFS at higher heating rates either before or after thermocycling. The holding time has significant effects on thermocycling and flexural strength. The zirconia achieved its optimum strength when it sintered at longer time regardless of heating rates. en_US
dc.identifier.citationcount 0
dc.identifier.doi 10.1515/bmt-2022-0338
dc.identifier.endpage 443 en_US
dc.identifier.issn 0013-5585
dc.identifier.issn 1862-278X
dc.identifier.issue 4 en_US
dc.identifier.pmid 36930871
dc.identifier.scopus 2-s2.0-85150514730
dc.identifier.scopusquality Q3
dc.identifier.startpage 437 en_US
dc.identifier.uri https://doi.org/10.1515/bmt-2022-0338
dc.identifier.uri https://hdl.handle.net/20.500.14517/1276
dc.identifier.volume 68 en_US
dc.identifier.wos WOS:000953123900001
dc.identifier.wosquality Q4
dc.institutionauthor Durkan R.
dc.language.iso en
dc.publisher Walter de Gruyter Gmbh en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.scopus.citedbyCount 0
dc.subject dental ceramic en_US
dc.subject flexural strength en_US
dc.subject monolithic zirconia en_US
dc.subject sintering en_US
dc.title The effects of heating rate and sintering time on the biaxial flexural strength of monolithic zirconia ceramics en_US
dc.type Article en_US
dc.wos.citedbyCount 0

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