Fracture load and microcrack comparison of crowns manufactured from tooth-shaped and traditional blocks

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dc.contributor.authorArslan, Merve
dc.contributor.authorTosun, İlgi
dc.date.accessioned2021-01-14T18:10:25Z
dc.date.available2021-01-14T18:10:25Z
dc.date.issued2021
dc.departmentKKÜ
dc.descriptionUtar, Merve/0000-0002-5876-3743
dc.description.abstractThis study intended to analyze microcracks and fractographic markings on the surface of all ceramic crowns after milling and compare the fracture loads. 90 crowns were manufactured from two feldspathic (Priticrown-Pr and Vita Mark II-Vi) and a lithium disilicate (EmaxCAD-Em) blocks (n= 30). Two groups (n= 15) were prepared for each ceramic. In the first group, crowns were analyzed twice via the fluorescent penetrant method for microcrack detection, after the manufacturing process and thermal cycles. The load to fracture test was applied at a crosshead speed of 0.5 mm/min until catastrophic failure. Second group crowns were directly cemented onto the Co-Cr dies following the manufacturing process and loaded to fracture. Fractographic markings were analyzed through scanning electron microscope. Spearman correlation analysis, Kruskal-WallisHtest, Mann-WhitneyUtest, and Wilcoxon Signed Rank test were applied (alpha= .05). Fracture loads of Em crowns were higher than other groups (p <.05), with and without the aging procedure. Except for second group Pr (r= -.532), no significant relationship was found between microcrack numbers and fracture loads (p > .05). Thermal cycling did not affect microcrack numbers and fracture loads (p > .05). Tooth-shaped multilayered Pr blocks did not provide an advantage in terms of microcrack and fracture loads.en_US
dc.description.sponsorshipKirikkale University Scientific Projects Coordination UnitKirikkale University [2015-86]en_US
dc.description.sponsorshipKirikkale University Scientific Projects Coordination Unit, Grant/Award Number: 2015-86en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1002/jemt.23571
dc.identifier.endpage118en_US
dc.identifier.issn1059-910X
dc.identifier.issn1097-0029
dc.identifier.issue1en_US
dc.identifier.pmid32845029
dc.identifier.scopus2-s2.0-85089861972
dc.identifier.scopusqualityQ1
dc.identifier.startpage111en_US
dc.identifier.urihttps://doi.org/10.1002/jemt.23571
dc.identifier.urihttps://hdl.handle.net/20.500.12587/12592
dc.identifier.volume84en_US
dc.identifier.wosWOS:000562984900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherWILEYen_US
dc.relation.ispartofMICROSCOPY RESEARCH AND TECHNIQUE
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleFracture load and microcrack comparison of crowns manufactured from tooth-shaped and traditional blocksen_US
dc.typeArticle

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