Fracture Resistance of Zirconia, Polyetheretherketone, and Polyetherketoneketone Implant Abutments After Aging

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dc.authoridDIKEN TURKSAYAR, ALMIRA ADA/0000-0003-3558-3202
dc.contributor.authorTurksayar, Almira Ada Diken
dc.contributor.authorAtsu, Saadet Saglam
dc.date.accessioned2025-01-21T16:41:13Z
dc.date.available2025-01-21T16:41:13Z
dc.date.issued2021
dc.departmentKırıkkale Üniversitesi
dc.description.abstractPurpose: This study aimed to assess the fracture resistance of zirconia (Zr), reinforced polyetheretherketone (PEEK), and polyetherketoneketone (PEKK) implant abutments restored with glass-ceramic crowns after thermomechanical aging. Materials and Methods: Zr, reinforced PEEK, and PEKK titanium base abutments were divided into three groups (n = 10). CAD/CAM maxillary central incisor crowns were fabricated using monolithic lithium disilicate and luted to the abutments using resin cement. The specimens were thermomechanically aged (1.2 x 10(6) cycles, 49 N, 5 degrees C to 55 degrees C). After testing fracture strength and determining fracture patterns, statistical analyses were made using the one-way analysis of variance (ANOVA) and Tukey post hoc tests (alpha=.05). Results: Fracture resistance of the PEKK abutments (541.90 +/- 68.49 N) was significantly lower than the Zr (780.65 +/- 105.77 N) and reinforced PEEK (741.09 +/- 99.84 N) abutments (P=.000). A significant discrepancy was not detected between the reinforced PEEK and Zr abutments. Failures usually formed due to crown or abutment fracture, plastic deformation of the titanium base or screw fracture in the Zr group, crown fracture or separation of the abutment-crown complex from the titanium base in the reinforced PEEK group, and abutment fracture without crown deformation in the PEKK group. Conclusion: After thermomechanical aging, the reinforced PEEK abutments exhibited similar fracture resistance to the Zr abutments. All abutment types withstood the physiologic occlusal forces typical for the oral anterior region. Before considering them as alternative esthetic implant abutment materials, further in vitro and clinical studies are needed to determine their long-term performance.
dc.description.sponsorshipKirikkale University Scientific Research Projects [2018/022-2018/068]
dc.description.sponsorshipThis study was supported by Kirikkale University Scientific Research Projects (2018/022-2018/068). There is no conflict of interest among the authors.
dc.identifier.doi10.11607/jomi.9007
dc.identifier.endpage340
dc.identifier.issn0882-2786
dc.identifier.issn1942-4434
dc.identifier.issue2
dc.identifier.pmid33909724
dc.identifier.scopus2-s2.0-85105088240
dc.identifier.scopusqualityQ2
dc.identifier.startpage332
dc.identifier.urihttps://doi.org/10.11607/jomi.9007
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24845
dc.identifier.volume36
dc.identifier.wosWOS:000644700300016
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; esthetics; implant abutments; polyetheretherketone; polyetherketoneketone; zirconia
dc.titleFracture Resistance of Zirconia, Polyetheretherketone, and Polyetherketoneketone Implant Abutments After Aging
dc.typeArticle

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