The relation between impact strength and flexural strength of dental materials
| Autor: | Yvon G.E. Sportel, Victor J. Jansen, Cornelis J. Kleverlaan, Niek de Jager, T.J.A.G. Münker, Luís Felipe Guilardi |
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| Přispěvatelé: | Oral Regenerative Medicine (ORM), Oral Cell Biology, Dental Material Sciences, Maxillofacial Surgery (AMC) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Ceramics
Materials science Surface Properties Geometric configuration Composite number Biomedical Engineering 02 engineering and technology Surface finish Impact strength Biomaterials Flexural strength 03 medical and health sciences Dental Materials 0302 clinical medicine Flexural Strength Materials Testing Humans Ceramic Composite material Pliability Dental composites Flexural modulus Finite element analysis Izod impact strength test 030206 dentistry 021001 nanoscience & nanotechnology Dental Porcelain Finite element method Dental ceramics Mechanics of Materials visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | de Jager, N, Münker, T J A G, Guilardi, L F, Jansen, V J, Sportel, Y G E & Kleverlaan, C J 2021, ' The relation between impact strength and flexural strength of dental materials ', Journal of the Mechanical Behavior of Biomedical Materials, vol. 122, 104658, pp. 1-7 . https://doi.org/10.1016/j.jmbbm.2021.104658 Journal of the Mechanical Behavior of Biomedical Materials, 122:104658, 1-7. Elsevier BV |
| ISSN: | 1751-6161 |
| Popis: | Aim The aim of this study was to investigate whether there is a relation between impact strength and flexural strength of different composite and ceramic materials used in dental restorations. Materials and methods The three-point-bending test was used to determine the flexural strength and flexural modulus, and the Dynstat impact test was used to determine the impact strength of different composite and ceramic dental materials. The relation between the flexural strength and impact strength was mathematically investigated and a three-dimensional finite element analysis model of the impact test set-up was created to verify these results. Results We found a relation between the impact strength, adU, the flexural strength, σ, and the flexural modulus, E, which can be represented by the formula: a d U = λ D K ( σ 2 ⁄ E ) , where λDK is a constant dependent on the test set-up. Conclusion The obtained impact strength of materials is specific to the test set-up and dependent on the geometric configuration of the test set-up and the specimen thickness. The clinical significance of this investigation is that roughness and fatigue have far more influence on the impact strength than the flexure strength. |
| Databáze: | OpenAIRE |
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