Effect of printing orientation on the fracture strength of additively manufactured 3-unit interim fixed dental prostheses after aging

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dc.authoridMustafa Borga Dönmez / 0000-0002-3094-7487en_US
dc.authorscopusidMustafa Borga Dönmez / 57202022054
dc.authorwosidMustafa Borga Dönmez / AGY-6155-2022en_US
dc.contributor.authorDiken Türksayar, Almira Ada
dc.contributor.authorDönmez, Mustafa Borga
dc.contributor.authorOlcay, Emin Orkun
dc.contributor.authorDemirel, Münir
dc.contributor.authorDemir, Esra
dc.date.accessioned2022-05-31T08:32:02Z
dc.date.available2022-05-31T08:32:02Z
dc.date.issued2022en_US
dc.departmentİstinye Üniversitesi, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümüen_US
dc.description.abstractObjectives: To evaluate the effect of printing orientation on the fracture strength of 3-unit interim fixed dental prostheses fabricated by using additive manufacturing and to compare with those fabricated by subtractive manufacturing after thermomechanical aging. Materials and Methods: A 3-unit fixed dental prosthesis was designed by using a dental design software (exocad DentalCAD 2.2 Valetta) in standard tessellation language (STL) format. This STL file was exported into a nesting software (PreForm) and 3-unit interim fixed dental prostheses with 5 different orientations (0°, 30°, 45°, 90°, and 150°) were printed by using a 3-dimensional (3D) printing interim resin (Temporary CB) (n=10). The same STL file was also used to mill polymethymethacrylate (DuoCAD) 3-unit interim fixed dental prostheses as the control group (n=10). All specimens were cemented onto cobalt-chromium test models representing a maxillary first premolar and first molar tooth with a long-term temporary cement (DentoTemp), and subjected to thermomechanical aging (120000 cycles, 1.6 Hz, 50 N, 5-55°C). Then, all specimens were loaded until fracture by using a universal tester. The data were analyzed with nonparametric 1-way analysis of variance (Kruskal- Wallis) and Dunn’s tests (? = 0.05). 3 Results: Additively manufactured specimens printed with 90° showed the lowest fracture strength values (P?.048). However, the difference between specimens printed with 45° and 90° was nonsignificant (P>.05). Milled 3-unit interim fixed dental prostheses withstood significantly higher loads than 3-unit interim fixed dental prostheses printed with 45° and 150° (P?.012). In addition, specimens printed with 0° showed higher fracture strength than the specimens printed with 45° (P=.01). Specimens printed with 0° and 30° presented similar fracture strength values with milled (P?.057) and 150° printed (P>.05) specimens. Conclusion: Printing orientation had a significant effect on the fracture strength of 3-unit interim fixed dental prostheses. Among the additively manufactured samples, those printed with 0° showed similar fracture strength values with the subtractively manufactured samples. Clinical Significance Three-unit interim fixed dental prostheses fabricated with 0° and 30° using the 3D printing interim resin tested may be alternatives to milled PMMA in terms of fracture strengthen_US
dc.identifier.citationTurksayar AAD, Donmez MB, Olcay EO, Demirel M, Demir E. Effect of printing orientation on the fracture strength of additively manufactured 3-unit interim fixed dental prostheses after aging. J Dent. 2022 May 5:104155. doi: 10.1016/j.jdent.2022.104155. Epub ahead of print. PMID: 35526752.en_US
dc.identifier.doi10.1016/j.jdent.2022.104155en_US
dc.identifier.issn0300-5712en_US
dc.identifier.pmid35526752en_US
dc.identifier.scopus2-s2.0-85134297810en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttp://doi.org/10.1016/j.jdent.2022.104155
dc.identifier.urihttps://hdl.handle.net/20.500.12713/2761
dc.identifier.wosWOS:000883033300002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorDönmez, Mustafa Borga
dc.language.isoenen_US
dc.publisherElsevier Scienceen_US
dc.relation.ispartofJournal of Dentistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFracture Strengthen_US
dc.subjectInterim Restorationen_US
dc.subjectPrinting Orientationen_US
dc.subjectHermomechanical Agingen_US
dc.titleEffect of printing orientation on the fracture strength of additively manufactured 3-unit interim fixed dental prostheses after agingen_US
dc.typeArticleen_US

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