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

Alexander Safonov; Evgenii Maltsev; Svyatoslav Chugunov; Andrey Tikhonov; Stepan Konev; Stanislav Evlashin; Dmitry Popov; Alexander Pasko; Iskander Akhatov

doi:10.3390/app10207138

Applied Sciences (Oct 2020)

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

Alexander Safonov,
Evgenii Maltsev,
Svyatoslav Chugunov,
Andrey Tikhonov,
Stepan Konev,
Stanislav Evlashin,
Dmitry Popov,
Alexander Pasko,
Iskander Akhatov

Affiliations

Alexander Safonov: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Evgenii Maltsev: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Svyatoslav Chugunov: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Andrey Tikhonov: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Stepan Konev: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Stanislav Evlashin: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Dmitry Popov: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Alexander Pasko: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia
Iskander Akhatov: Skolkovo Institute of Science and Technology, Center for Design, Manufacturing and Materials, 30/1 Bolshoi Boulevard, Moscow 121205, Russia

DOI: https://doi.org/10.3390/app10207138
Journal volume & issue: Vol. 10, no. 20
p. 7138

Abstract

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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.

Published in Applied Sciences

ISSN: 2076-3417 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General); Science: Biology (General); Science: Physics; Science: Chemistry
Website: http://www.mdpi.com/journal/applsci

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