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Article

Design and Fabrication of Complex-Shaped Ceramic Bone Implants via 3D Printing Based on Laser Stereolithography

Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
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Appl. Sci. 2020, 10(20), 7138; https://doi.org/10.3390/app10207138
Received: 5 August 2020 / Revised: 29 September 2020 / Accepted: 12 October 2020 / Published: 14 October 2020
(This article belongs to the Special Issue Design for Additive Manufacturing: Methods and Tools)
3D printing allows the fabrication of ceramic implants, making a personalized approach to patients’ treatment a reality. In this work, we have tested the applicability of the Function Representation (FRep) method for geometric simulation of implants with complex cellular microstructure. For this study, we have built several parametric 3D models of 4 mm diameter cylindrical bone implant specimens of four different types of cellular structure. The 9.5 mm long implants are designed to fill hole defects in the trabecular bone. Specimens of designed ceramic implants were fabricated at a Ceramaker 900 stereolithographic 3D printer, using a commercial 3D Mix alumina (Al2O3) ceramic paste. Then, a single-axis compression test was performed on fabricated specimens. According to the test results, the maximum load for tested specimens constituted from 93.0 to 817.5 N, depending on the size of the unit cell and the thickness of the ribs. This demonstrates the possibility of fabricating implants for a wide range of loads, making the choice of the right structure for each patient much easier. View Full-Text
Keywords: bones implants; stereolithography; 3D printing; aluminum oxide; Function Representation (FRep) method bones implants; stereolithography; 3D printing; aluminum oxide; Function Representation (FRep) method
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MDPI and ACS Style

Safonov, A.; Maltsev, E.; Chugunov, S.; Tikhonov, A.; Konev, S.; Evlashin, S.; Popov, D.; Pasko, A.; Akhatov, I. Design and Fabrication of Complex-Shaped Ceramic Bone Implants via 3D Printing Based on Laser Stereolithography. Appl. Sci. 2020, 10, 7138. https://doi.org/10.3390/app10207138

AMA Style

Safonov A, Maltsev E, Chugunov S, Tikhonov A, Konev S, Evlashin S, Popov D, Pasko A, Akhatov I. Design and Fabrication of Complex-Shaped Ceramic Bone Implants via 3D Printing Based on Laser Stereolithography. Applied Sciences. 2020; 10(20):7138. https://doi.org/10.3390/app10207138

Chicago/Turabian Style

Safonov, Alexander, Evgenii Maltsev, Svyatoslav Chugunov, Andrey Tikhonov, Stepan Konev, Stanislav Evlashin, Dmitry Popov, Alexander Pasko, and Iskander Akhatov. 2020. "Design and Fabrication of Complex-Shaped Ceramic Bone Implants via 3D Printing Based on Laser Stereolithography" Applied Sciences 10, no. 20: 7138. https://doi.org/10.3390/app10207138

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