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Appl. Sci. 2017, 7(7), 710; doi:10.3390/app7070710

Fabricating High-Quality 3D-Printed Alloys for Dental Applications

1
Institute for Biomaterials Research & Development, Kyungpook National University, 2-188-1 Samduk-dong, Jung-gu, Daegu 700-412, Korea
2
Center for Research Facilities, Yeungnam University, 214-1 Dae-dong, Gyeongsan 712-749, Korea
3
Department of Dental Biomaterials, School of Dentistry, Kyungpook National University, 2-188-1 Samduk-dong, Jung-gu, Daegu 700-412, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Amir A. Zadpoor
Received: 26 June 2017 / Revised: 5 July 2017 / Accepted: 7 July 2017 / Published: 10 July 2017
(This article belongs to the Special Issue Biofabrication: from Additive Bio-Manufacturing to Bioprinting)
View Full-Text   |   Download PDF [900 KB, uploaded 10 July 2017]   |  

Abstract

Metal additive manufacturing (AM), especially selective laser melting (SLM), has been receiving particular attention because metallic functional structures with complicated configurations can be effectively fabricated using the technique. However, there still exist some future challenges for the fabrication of high-quality SLM products for dental applications. First, the surface quality of SLM products should be further improved by standardizing the laser process parameters or by appropriately post-treating the surface. Second, it should be guaranteed that dental SLM restorations have good dimensional accuracy and, in particular, a good marginal fit. Third, a definitive standard regarding building and scanning strategies, which affect the anisotropy, should be established to optimize the mechanical properties and fatigue resistance of SLM dental structures. Fourth, the SLM substructure’s bonding and support to veneering ceramic should be further studied to facilitate the use of esthetic dental restorations. Finally, the biocompatibility of SLM dental alloys should be carefully examined and improved to minimize the potential release of toxic metal ions from the alloys. Future research of SLM should focus on solving the above challenges, as well as on fabricating dental structures with “controlled” porosity. View Full-Text
Keywords: additive manufacturing; anisotropy; dental alloy; selective laser melting additive manufacturing; anisotropy; dental alloy; selective laser melting
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hong, M.-H.; Min, B.K.; Kwon, T.-Y. Fabricating High-Quality 3D-Printed Alloys for Dental Applications. Appl. Sci. 2017, 7, 710.

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