Scherer, Michael; Al-Haj Husain, Nadin; Barmak, Abdul B; Kois, John C; Özcan, Mutlu; Revilla-León, Marta (2023). Influence of the layer thickness on the flexural strength of aged and non-aged additively manufactured interim dental material. Journal of prosthodontics, 32(S1), pp. 68-73. Wiley 10.1111/jopr.13582
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Journal_of_Prosthodontics_-_2022_-_Scherer_-_Influence_of_the_layer_thickness_on_the_flexural_strength_of_aged_and_non_aged.pdf - Accepted Version Available under License Publisher holds Copyright. Download (1MB) | Preview |
PURPOSE
To measure the flexural strength and Weibull characteristics of aged and non-aged printed interim dental material fabricated with different layer thickness.
MATERIAL AND METHODS
Bars (25×2×2 mm) were additively fabricated by using a polymer printer (Asiga Max) and an interim resin (Nexdent C&B MFH). Specimens were fabricated with the same printing parameters and postprocessing procedures, but with 7 different layer thickness: 50 (control or 50-G group), 10 (10-G group), 25 (25-G group), 75 (75-G group), 100 (100-G group), 125 (125-G group), and 150 μm (150-G group). Two subgroups were created: non-aged and aged subgroups (n = 10). A universal testing machine was selected to measure flexural strength. Two-parameter Weibull distribution values were computed. Two-way ANOVA and Tukey tests were elected to examine the data (α = .05).
RESULTS
Artificial aging methods (P<.001) were a significant predictor of the flexural strength computed. Aged specimens acquired less flexural strength than non-aged specimens. The Weibull distribution obtained the highest shape for non-aged 50-G and 75-G group specimens compared with those of other non-aged groups, while the Weibull distribution showed the highest shape for aged 125-G specimens.
CONCLUSIONS
The flexural strength of the additively fabricated interim material examined was not influenced by the layer thickness at which the specimens were fabricated; however, artificial aging techniques reduced its flexural strength. Aged specimens presented lower Weibull distribution values compared with non-aged specimens, except for the 125-G specimens. This article is protected by copyright. All rights reserved.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology |
UniBE Contributor: |
Al-Haj Husain, Nadin |
ISSN: |
1532-849X |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
05 Aug 2022 10:22 |
Last Modified: |
05 Aug 2023 00:25 |
Publisher DOI: |
10.1111/jopr.13582 |
PubMed ID: |
35924435 |
Uncontrolled Keywords: |
3D printing additive manufacturing technologies interim dental prostheses provisional dental material vat-polymerization technologies |
BORIS DOI: |
10.48350/171762 |
URI: |
https://boris.unibe.ch/id/eprint/171762 |
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