Influence of heating rate on the flexural strength of monolithic zirconia

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dc.authoridOZTURK, Caner/0000-0001-9549-2770
dc.authoridCelik, Ersan/0000-0002-3797-770X
dc.contributor.authorOzturk, Caner
dc.contributor.authorCelik, Ersan
dc.date.accessioned2024-09-18T20:26:35Z
dc.date.available2024-09-18T20:26:35Z
dc.date.issued2019
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractPURPOSE. Fabrication of zirconia restorations with ideal mechanical properties in a short period is a great challenge for clinicians. The purpose of the study was to investigate the effect of heating rate on the mechanical and microstructural properties of monolithic zirconia. MATERIALS AND METHODS. Forty monolithic zirconia specimens were prepared from presintered monolithic zirconia blanks. All specimens were then assigned to 4 groups according to heating rate as Control, Group 15 degrees C, Group 20 degrees C, and Group 40 degrees C. All groups were sintered according to heating rates with the sintering temperature of 1500 degrees C, a holding time of 90 minutes and natural cooling. The phase composition was examined by XRD analysis, three-point bending test was conducted to examine the flexural strength, and Weibull analysis was conducted to determine weibull modulus and characteristic strength. Average grain sizes were determined by SEM analysis. One-way ANOVA test was performed at a significance level of 0.05. RESULTS. Only tetragonal phase characteristic peaks were determined on the surface of analyzed specimens. Differences among the average grain sizes of the groups were not statistically significant. The results of the three-point bending test revealed no significant differences among the flexural strength of the groups (P>.05). Weibull modulus of groups was ranging from 3.50 to 4.74. The highest and the lowest characteristic strength values were obtained in Group 20 degrees C and Control Group, respectively. CONCLUSION. Heating rate has no significant effect on the flexural strength of monolithic zirconia. Monolithic zirconia restorations can be produced in shorter sintering periods without affecting the flexural strength by modifying the heating rate.en_US
dc.identifier.doi10.4047/jap.2019.11.4.202
dc.identifier.endpage208en_US
dc.identifier.issn2005-7806
dc.identifier.issn2005-7814
dc.identifier.issue4en_US
dc.identifier.pmid31497267en_US
dc.identifier.scopus2-s2.0-85071871405en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage202en_US
dc.identifier.urihttps://doi.org/10.4047/jap.2019.11.4.202
dc.identifier.urihttps://hdl.handle.net/20.500.12483/10421
dc.identifier.volume11en_US
dc.identifier.wosWOS:000484376200002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherKorean Acad Prosthodonticsen_US
dc.relation.ispartofJournal of Advanced Prosthodonticsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHeating rateen_US
dc.subjectMonolithic zirconiaen_US
dc.subjectSintering parametersen_US
dc.titleInfluence of heating rate on the flexural strength of monolithic zirconiaen_US
dc.typeArticleen_US

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