| REVIEW ARTICLE |
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| Year : 2023 | Volume
: 9
| Issue : 1 | Page : 1 |
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Research progress on surface modification of three-dimensional printing porous titanium alloys
Hongwei Liu, Xinqi Cheng
Department of Orthopedics, Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou, Jiangsu, China
Correspondence Address:
Hongwei Liu
Department of Orthopedics, The A.liated Changzhou No. 2 People's Hospital of Nanjing Medical University, No.68 Gehu Middle Road, Changzhou, 213003, Jiangsu
China
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/digm.digm_23_22
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Three-dimensional (3D) printed porous titanium alloy has good mechanical and physical properties and chemical stability. It is widely used in the field of additive manufacturing to realize the personalized customization of complex structures, such as industry, military, aerospace, and medicine, especially in the customization of personalized orthopedic implants and the repair and reconstruction of bone defects. However, due to the biological inertia of titanium alloy, the cell adhesion of the untreated metal surface is poor. Therefore, surface modification to enhance the biocompatibility and promote bone activity and antibacterial activity of 3D printed porous titanium alloy has become a research hotspot. In this article, the surface modification technology of 3D printing porous titanium alloys is reviewed from four aspects: physical modification, chemical modification, biochemical modification, and metal ion coating.
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