Engineering realization of customized titanium mesh for bone regeneration by additive manufacturing

doi:10.12337/zgkqzzxzz.2021.12.004

Abstract

Abstract: Objective Explain R&D and production workflow for customized titanium mesh by additive manufacturing, to ensure high quality and consistency before titanium mesh comes to clinical surgery. Methods Design of customized titanium mesh is optimized by finite element analysis. Titanium mesh and test coupons are additively manufactured using medical-level pure titanium powder. The test results of test coupons are used to evaluate the mechanical performance of titanium mesh. Results Yield strength of test coupons printed horizontally, vertically, and 45 degrees are 372.5 MPa, 414.8 MPa, and 400.3 MPa; Elongation rates are 28.2%, 24.0%, and 28.7%; Average relative density is 99.89%; Surface roughness is Ra 8 μm (horizontal) and 13 μm (vertical). Conclusion Customized titanium mesh has acceptable performance for clinical surgery by optimized workflow: CAD, CAE, additive manufacturing, and post-processing. A long-term study on clinical effectiveness is required after customized titanium mesh is successfully implanted.

Key words: Customized titanium mesh, Guided bone regeneration, Additive manufacturing, 3D printing

Zhang Liqiang, Liu Yang, Jiang Xin, Wang Zhihui, Xu Shuze, Liu Qian. Engineering realization of customized titanium mesh for bone regeneration by additive manufacturing[J]. Chinese Journal of Oral Implantology, 2021, 26(6): 354-361.

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