Comparison of Dental Stone Models and Their 3D Printed Acrylic Replicas for the Accuracy and Mechanical Properties
| Autor: | Marta Czajkowska, Monika Wieczorek, Ewa Walejewska, Leopold Wagner, Wojciech Święszkowski, Jarosław Markowski, Łukasz Zadrożny, Eitan Mijiritsky |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
3d printed
Materials science diagnostic 02 engineering and technology lcsh:Technology Article 03 medical and health sciences 0302 clinical medicine Flexural strength stomatognathic system Shore durometer General Materials Science Composite material lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T Dental Models Izod impact strength test 030206 dentistry 3D printing 021001 nanoscience & nanotechnology Dental stone Compressive strength lcsh:TA1-2040 Occlusal surface lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering diagnostic model 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 13, Iss 4066, p 4066 (2020) Materials Volume 13 Issue 18 |
| ISSN: | 1996-1944 |
| Popis: | This study was conducted to test possibilities of application of 3D printed dental models (DMs) in terms of their accuracy and physical properties. In this work, stone models of mandibles were cast from alginate impressions of 10 patients and scanned in order to obtain 3D printed acrylic replicas. The diagnostic value was tested as matching of model scans on three levels: peak of cusps, occlusal surface, and all teeth surfaces. The mechanical properties of acrylic and stone samples, specifically the impact strength, shore D hardness, and flexural and compressive strength were investigated according to ISO standards. The matching of models&rsquo surfaces was the highest on the level of peaks of cusps (average lack of deviations, 0.21 mm) and the lowest on the level of all teeth surfaces (average lack of deviations, 0.64 mm). Acrylic samples subjected to mechanical testing, as expected, showed higher mechanical properties as compared to the specimens made of dental stone. In the present study we demonstrated that 3D printed acrylic models could be ideal representatives in the case of use as a diagnostic tool and as a part of medical records. The acrylic samples exhibited not only higher mechanical properties, but also showed better accuracy comparing to dental stone. |
| Databáze: | OpenAIRE |
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