Comparison of load bearing capacity of ceramic crowns with zirconia or polyetherketoneketone frameworks

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dc.contributor.authorSeckin, Ozge
dc.contributor.authorAkin, Ceyda
dc.contributor.authorOzcan, Mutlu
dc.date.accessioned2024-02-23T14:34:46Z
dc.date.available2024-02-23T14:34:46Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractAim: The aim of the present study was to compare the load bearing capacity of monolithic or bilayered single crowns with zirconia or polyetherketoneketone frameworks designed and fabricated using CAD/CAM systems.Materials and methods: Cr-Co-based metal dies (n = 60) were duplicated from an extracted and prepared premolar and then restored with different CAD/CAM materials. The specimens were divided into five groups (n = 12) according to the type of materials: group S: monolithic zirconia-reinforced lithium disilicate; group ZI: bilayered zirconia framework with lithium disilicate; group ZE: bilayered zirconia frame-work with resin-infiltrated hybrid ceramic; group PI: bilayered polyetherketoneketone (PEKK) framework with lithium disilicate; group PE: bilayered PEKK framework with resin in-filtrated hybrid ceramic. The crown specimens were cemented on Cr-Co metal dies with a resin cement (Multilink N). The specimens were subjected to cyclic mechanical loading followed by load bearing testing. Data were analyzed using the Kruskal-Wallis and Mann-Whitney U tests (a = 0.05).Results: The monolithic crowns in group S (1930 +/- 452.18 N) presented significantly higher load bearing capacity than those of the other groups (P < 0.05). This was followed by group ZI (1165.41 +/- 264.04 N). The remaining groups demonstrated comparable results. Failure types were more frequent in all zirconia specimens that included veneering ceramic.Conclusions: Monolithic zirconia-reinforced lithium disilicate CAD/CAM ceramics showed superior load bearing capacity compared with all other bilayered counterparts. All CAD/CAM materials tested remarkably exceeded the average occlusal force in the posterior region.en_US
dc.description.sponsorshipNecmettin Erbakan University Scientific Research Projects (BAP) Coordination [171924005]; Konya, Turkeyen_US
dc.description.sponsorshipThis study was supported by Necmettin Erbakan University Scientific Research Projects (BAP) Coordination (Project Number: 171924005) , Konya, Turkey.en_US
dc.identifier.doi10.3290/j.ijcd.b3774269
dc.identifier.endpage236en_US
dc.identifier.issn1463-4201
dc.identifier.issue3en_US
dc.identifier.pmid36625372en_US
dc.identifier.scopus2-s2.0-85172425625en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage227en_US
dc.identifier.urihttps://doi.org/10.3290/j.ijcd.b3774269
dc.identifier.urihttps://hdl.handle.net/20.500.12452/15747
dc.identifier.volume26en_US
dc.identifier.wosWOS:001086488400004en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherQuintessence Publishing Co Incen_US
dc.relation.ispartofInternational Journal Of Computerized Dentistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBilayered All-Ceramicsen_US
dc.subjectCad/Camen_US
dc.subjectDental Materialsen_US
dc.subjectLoad Bearing Capacityen_US
dc.subjectMonolithicen_US
dc.subjectPekken_US
dc.subjectZirconiaen_US
dc.subjectProsthodonticsen_US
dc.titleComparison of load bearing capacity of ceramic crowns with zirconia or polyetherketoneketone frameworksen_US
dc.typeArticleen_US

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