Fatigue behavior of implant-supported cantilevered prostheses in recently introduced CAD-CAM polymers: An in vitro study

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dc.authorscopusidMustafa Borga Dönmez / 57202022054
dc.authorwosidMustafa Borga Dönmez / AGY-6155-2022
dc.contributor.authorDönmez, Mustafa Borga
dc.contributor.authorÇakmak, Gülce
dc.contributor.authorGüven, Mehmet Esad
dc.contributor.authorDede, Doğu Ömür
dc.contributor.authorAbou Ayash, Samir
dc.contributor.authorYılmaz, Burak
dc.date.accessioned2025-04-18T10:02:02Z
dc.date.available2025-04-18T10:02:02Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümü
dc.description.abstractStatement of problem: Cantilevered complete arch implant-supported prostheses are commonly fabricated from zirconia and more recently from strength gradient zirconia. Different polymer-based materials indicated for definitive fixed prostheses that could be used with additive or subtractive manufacturing have also been marketed recently. However, knowledge on the long-term fatigue behavior of cantilevered implant-supported prostheses made from these polymer-based materials and strength gradient zirconia is lacking. Purpose: The purpose of this in vitro study was to evaluate the fatigue behavior of implant-supported cantilevered prostheses of recently introduced computer-aided design and computer-aided manufacturing polymers and zirconia. Material and methods: A master standard tessellation language file of a 9×11×20-mm specimen with a titanium base (Ti-base) space that represented an implant-supported cantilevered prosthesis was used to fabricate specimens from additively manufactured interim resin (AM), polymethyl methacrylate (SM-PM), nanographene-reinforced polymethyl methacrylate (SM-GR), high-impact polymer composite resin (SM-CR), and strength gradient zirconia (SM-ZR) (n=10). Each specimen was prepared by following the respective manufacturer's recommendations, and Ti-base abutments were cemented with an autopolymerizing luting composite resin. After cementation, the specimens were mounted in a mastication simulator and subjected to 1.2 million loading cycles under 100 N at 1.5 Hz; surviving specimens were subjected to another 1.2 million loading cycles under 200 N at 1.5 Hz. The load was applied to the cantilever extension, 12-mm from the clamp of the mastication simulator. The Kaplan–Meier survival analysis and Cox proportional hazards model were used to evaluate the data (α=.05). Results: Significant differences in survival rate and hazard ratio were observed among materials (P<.001). Among tested materials, SM-ZR had the highest and AM had the lowest survival rate (P≤.031). All materials had a significantly higher hazard ratio than SM-ZR (P≤.011) in the increasing order of SM-GR, SM-PM, SM-CR, and AM. Conclusions: SM-ZR had the highest survival rate with no failed specimens. Even though most of the tested polymer-based materials failed during cyclic loading, these failures were commonly observed during the second 1.2 million loading cycles with 200 N. All materials had a higher hazard ratio than SM-ZR. © 2024 The Authors
dc.description.sponsorshipAcademy of Osseointegration
dc.identifier.citationDönmez, M. B., Çakmak, G., Güven, M. E., Dede, D. Ö., Abou-Ayash, S., & Yilmaz, B. (2024). Fatigue behavior of implant-supported cantilevered prostheses in recently introduced CAD-CAM polymers: An in vitro study. The Journal of Prosthetic Dentistry.
dc.identifier.doi10.1016/j.prosdent.2024.05.001
dc.identifier.issn00223913
dc.identifier.scopus2-s2.0-85194168686
dc.identifier.scopusqualityQ1
dc.identifier.urihttp://dx.doi.org/10.1016/j.prosdent.2024.05.001
dc.identifier.urihttps://hdl.handle.net/20.500.12713/6924
dc.indekslendigikaynakScopus
dc.institutionauthorDönmez, Mustafa Borga
dc.institutionauthoridMustafa Borga Dönmez / 0000-0002-3094-7487
dc.language.isoen
dc.publisherElsevier Inc.
dc.relation.ispartofJournal of Prosthetic Dentistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleFatigue behavior of implant-supported cantilevered prostheses in recently introduced CAD-CAM polymers: An in vitro study
dc.typeArticle

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