Occlusal Thickness and Cement-Type Effects on Fracture Resistance of Implant-Supported Posterior Monolithic Zirconia Crowns

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dc.authoridBulut, Ali Can/0000-0002-1586-7403
dc.contributor.authorBulut, Ali Can
dc.contributor.authorAtsu, Saadet Saglam
dc.date.accessioned2025-01-21T16:43:01Z
dc.date.available2025-01-21T16:43:01Z
dc.date.issued2021
dc.departmentKırıkkale Üniversitesi
dc.description.abstractPurpose: To evaluate the factors that could influence the fracture resistance of implant-supported posterior monolithic zirconia crowns. Materials and Methods: Sixty zirconia molar crowns with three different occlusal thicknesses of 0.5, 1.0, and 1.5 mm (20 samples per group) were prepared for implant abutments using a CAD/CAM system. In each group, 10 crowns were luted on the abutment with resin cement (Panavia F), and the other 10 crowns were luted with resin-modified glass-ionomer cement (Ketac Cem Plus). Dynamic loading (1.2 x 10(6) cycles; 70 N) and thermal cycling were applied to the samples using a chewing simulator before evaluating their fracture resistance with a universal testing machine and examining their fracture type using a stereomicroscope. One-way analysis of variance (ANOVA), the Duncan test, and two-way ANOVA were used for data evaluation (alpha = .05). Results: The occlusal thickness (P < .001) and cement type (P < .01) affected the fracture load of the monolithic zirconia crowns. The highest fracture resistance was found in 1.5-mm-thick crowns luted with resin cement (4,212 +/- 501 N), and the lowest fracture resistance was found in 0.5-mm and 1-mm-thick crowns luted with resin-modified glass-ionomer cement (1,198 +/- 116 N and 1,197 +/- 66 N). A significant difference was not found in the mean maximum fracture load between the 1.5-mm-thick crowns cemented with resin cement and glass-ionomer resin cement. Conclusion: Both the occlusal thickness and cement type remarkably affected the fracture resistance of the crowns, but occlusal thickness was more significant. Implant-supported posterior zirconia crowns can withstand physiologic occlusal forces even with a thickness as low as 0.5 mm. Resin luting cement is recommended for implant-supported posterior zirconia crowns with reduced occlusal thickness.
dc.description.sponsorshipKirikkale University Scientific Research Program [2018/059]
dc.description.sponsorshipThe authors acknowledge the support of the Kirikkale University Scientific Research Program (2018/059). The authors reported no conflicts of interest related to this study.
dc.identifier.doi10.11607/jomi.8503
dc.identifier.endpage491
dc.identifier.issn0882-2786
dc.identifier.issn1942-4434
dc.identifier.issue3
dc.identifier.pmid34115062
dc.identifier.scopus2-s2.0-85108303958
dc.identifier.scopusqualityQ2
dc.identifier.startpage485
dc.identifier.urihttps://doi.org/10.11607/jomi.8503
dc.identifier.urihttps://hdl.handle.net/20.500.12587/25186
dc.identifier.volume36
dc.identifier.wosWOS:000659895100012
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherQuintessence Publishing Co Inc
dc.relation.ispartofInternational Journal of Oral & Maxillofacial Implants
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectCAD/CAM; cement; fracture resistance; implant-supported crown; monolithic zirconia crown; occlusal thickness
dc.titleOcclusal Thickness and Cement-Type Effects on Fracture Resistance of Implant-Supported Posterior Monolithic Zirconia Crowns
dc.typeArticle

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