Fracture strength and energy-dispersive spectroscopy analysis of 3-unit fixed partial dentures fabricated from different monolithic zirconia materials

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dc.authoridErdinc, Gulbahar/0000-0002-0883-9834
dc.authoridBulbul, Mehmet/0000-0002-4956-7548
dc.contributor.authorErdinc, Gulbahar
dc.contributor.authorBulbul, Mehmet
dc.contributor.authorOzcan, Mutlu
dc.date.accessioned2024-09-29T16:00:37Z
dc.date.available2024-09-29T16:00:37Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractStatement of problem. Mastication forces in different regions affect the survival of multiunit posterior restorations. The fracture strength of 3-unit posterior monolithic zirconia fixed partial dentures (FPDs) and their fracture patterns require investigation. Purpose. The purpose of this in vitro study was to evaluate and compare the fracture strength and fracture pattern of 3-unit posterior FPDs fabricated from different monolithic zirconia materials. Material and methods. Thirty 3-unit FPDs were fabricated from BruxZir, FireZr, and Upcera (n=10 per group). Energy-dispersive spectroscopy analysis was performed on 2 selected specimens from each group. All specimens were exposed to a mastication simulator for 1.2x106 cycles and then monotonically loaded to fracture at a crosshead speed of 1 mm/min. The surfaces of a selected fractured specimen were examined at magnifications of x25 and x500 with scanning electron microscopy. Conformity to normal distribution was evaluated with the Shapiro-Wilk test. Oneway analysis of variance was used to compare the normally distributed initial crack formation load F initial (Fi) and catastrophic failure strength F maximum (Fm) means by group. Weibull statistics were calculated by using the maximum likelihood estimation method. The chi-square test was used to compare shape and scale parameters (a=.05). Results. The mean Fm values were fail1878.9 N for Upcera, 2177.8 N for BruxZir, and 2229.4 N for FireZr. Upcera and BruxZir showed statistically significant differences for the Fm mean values (P=.039). The differences between the fracture type distributions according to the groups were statistically similar (P>.05). For Fi, Upcera presented the highest Weibull modulus value (2.199), FireZr had the lowest (1.594), while for Fm, BruxZir had the highest Weibull modulus value (9.267) and FireZr the lowest (6.572). Conclusions. Using the zirconia materials BruxZir, FireZr, and Upcera resulted in high Fm values after aging procedures. With all materials, the fractures were most commonly found in the connector areas in the tested FPDs. (J Prosthet Dent 2023;129:938.e1-e7)en_US
dc.identifier.doi10.1016/j.prosdent.2023.03.011
dc.identifier.issn0022-3913
dc.identifier.issn1097-6841
dc.identifier.issue6en_US
dc.identifier.pmid37024356en_US
dc.identifier.scopus2-s2.0-85151559809en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.prosdent.2023.03.011
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5232
dc.identifier.volume129en_US
dc.identifier.wosWOS:001063234700001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherMosby-Elsevieren_US
dc.relation.ispartofJournal of Prosthetic Dentistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFlexural Strengthen_US
dc.subjectDental Prosthesesen_US
dc.subjectResistanceen_US
dc.subjectCrownsen_US
dc.subjectFailureen_US
dc.subjectFatigueen_US
dc.subjectLoaden_US
dc.titleFracture strength and energy-dispersive spectroscopy analysis of 3-unit fixed partial dentures fabricated from different monolithic zirconia materialsen_US
dc.typeArticleen_US

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