Influence of the layer thickness on the flexural strength of aged and nonaged additively manufactured interim dental material
© 2022 by the American College of Prosthodontists..
PURPOSE: To measure the flexural strength and Weibull characteristics of aged and nonaged 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: nonaged 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 selected for statistical evaluation of the data (α = 0.05).
RESULTS: Artificial aging methods (p < 0.001) were a significant predictor of the flexural strength computed. Aged specimens acquired less flexural strength than nonaged specimens. The Weibull distribution obtained the highest shape for nonaged 50-G and 75-G group specimens compared with those of other nonaged 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 nonaged specimens, except for the 125-G specimens.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:32 |
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| Enthalten in: |
Journal of prosthodontics : official journal of the American College of Prosthodontists - 32(2023), S1 vom: 17. Apr., Seite 68-73 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Scherer, Michael [VerfasserIn] |
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| Links: |
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| Themen: |
3D printing |
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| Anmerkungen: |
Date Completed 10.04.2023 Date Revised 10.04.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/jopr.13582 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM344439968 |
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| 100 | 1 | |a Scherer, Michael |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Influence of the layer thickness on the flexural strength of aged and nonaged additively manufactured interim dental material |
| 264 | 1 | |c 2023 | |
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| 500 | |a Date Revised 10.04.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2022 by the American College of Prosthodontists. | ||
| 520 | |a PURPOSE: To measure the flexural strength and Weibull characteristics of aged and nonaged printed interim dental material fabricated with different layer thickness | ||
| 520 | |a 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: nonaged 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 selected for statistical evaluation of the data (α = 0.05) | ||
| 520 | |a RESULTS: Artificial aging methods (p < 0.001) were a significant predictor of the flexural strength computed. Aged specimens acquired less flexural strength than nonaged specimens. The Weibull distribution obtained the highest shape for nonaged 50-G and 75-G group specimens compared with those of other nonaged groups, while the Weibull distribution showed the highest shape for aged 125-G specimens | ||
| 520 | |a 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 nonaged specimens, except for the 125-G specimens | ||
| 650 | 4 | |a Comparative Study | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a 3D printing | |
| 650 | 4 | |a additive manufacturing technologies | |
| 650 | 4 | |a interim dental prostheses | |
| 650 | 4 | |a provisional dental material | |
| 650 | 4 | |a vat-polymerization technologies | |
| 650 | 7 | |a Dental Materials |2 NLM | |
| 650 | 7 | |a Polymers |2 NLM | |
| 700 | 1 | |a Al-Haj Husain, Nadin |e verfasserin |4 aut | |
| 700 | 1 | |a Barmak, Abdul B |e verfasserin |4 aut | |
| 700 | 1 | |a Kois, John C |e verfasserin |4 aut | |
| 700 | 1 | |a Özcan, Mutlu |e verfasserin |4 aut | |
| 700 | 1 | |a Revilla-León, Marta |e verfasserin |4 aut | |
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