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Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins
Digital dentures can be fabricated by subtractive milling or, more recently, by 3D-printing technology. Several different 3D-printing technologies and materials are commercially available, and the differences in printing accuracy and mechanical behavior among them are unknown. Aim: This study evalua...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999488/ https://www.ncbi.nlm.nih.gov/pubmed/35407742 http://dx.doi.org/10.3390/ma15072410 |
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author | al-Qarni, Faisal D. Gad, Mohammed M. |
author_facet | al-Qarni, Faisal D. Gad, Mohammed M. |
author_sort | al-Qarni, Faisal D. |
collection | PubMed |
description | Digital dentures can be fabricated by subtractive milling or, more recently, by 3D-printing technology. Several different 3D-printing technologies and materials are commercially available, and the differences in printing accuracy and mechanical behavior among them are unknown. Aim: This study evaluated the printing accuracy of 3D-printed denture base resins and assessed their flexural properties when compared with conventional heat-polymerized ones. Methods: A total of 40 acrylic specimens were prepared with four different materials: three 3D-printed resins, and a conventional heat polymerized resin was used as a control. The printing accuracy was evaluated by calculating the error rate of 3D-printed specimens compared with dimensions of the virtual design. Flexural strength and elastic modulus were assessed with a universal testing machine. One-way ANOVA and Kruskal–Wallis tests were used for analysis. Results: Printing accuracy across the tested materials was statistically different. Specimen length showed error rates between 1.3% and 2.4%, specimen width had error rates between 0.2% and 0.7%, and specimen thickness had error rates between 0.2% and 0.6%. Three-dimensional-printed specimens had lower flexural strength and elastic modulus values when compared with heat-polymerized specimens. Conclusions: The choice of material seems to influence printing accuracy, and to a lesser extent, flexural strength. However, it has no effect on the elastic modulus. |
format | Online Article Text |
id | pubmed-8999488 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89994882022-04-12 Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins al-Qarni, Faisal D. Gad, Mohammed M. Materials (Basel) Article Digital dentures can be fabricated by subtractive milling or, more recently, by 3D-printing technology. Several different 3D-printing technologies and materials are commercially available, and the differences in printing accuracy and mechanical behavior among them are unknown. Aim: This study evaluated the printing accuracy of 3D-printed denture base resins and assessed their flexural properties when compared with conventional heat-polymerized ones. Methods: A total of 40 acrylic specimens were prepared with four different materials: three 3D-printed resins, and a conventional heat polymerized resin was used as a control. The printing accuracy was evaluated by calculating the error rate of 3D-printed specimens compared with dimensions of the virtual design. Flexural strength and elastic modulus were assessed with a universal testing machine. One-way ANOVA and Kruskal–Wallis tests were used for analysis. Results: Printing accuracy across the tested materials was statistically different. Specimen length showed error rates between 1.3% and 2.4%, specimen width had error rates between 0.2% and 0.7%, and specimen thickness had error rates between 0.2% and 0.6%. Three-dimensional-printed specimens had lower flexural strength and elastic modulus values when compared with heat-polymerized specimens. Conclusions: The choice of material seems to influence printing accuracy, and to a lesser extent, flexural strength. However, it has no effect on the elastic modulus. MDPI 2022-03-24 /pmc/articles/PMC8999488/ /pubmed/35407742 http://dx.doi.org/10.3390/ma15072410 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article al-Qarni, Faisal D. Gad, Mohammed M. Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins |
title | Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins |
title_full | Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins |
title_fullStr | Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins |
title_full_unstemmed | Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins |
title_short | Printing Accuracy and Flexural Properties of Different 3D-Printed Denture Base Resins |
title_sort | printing accuracy and flexural properties of different 3d-printed denture base resins |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999488/ https://www.ncbi.nlm.nih.gov/pubmed/35407742 http://dx.doi.org/10.3390/ma15072410 |
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