Design and fabrication of a novel porous titanium dental implant with micro/nano surface

Article type: Research Article

Authors: Xiong, Yinze^a | Gao, Ruining^a | Zhang, Hang^a | Li, Xiang^a;

Affiliations: [a] State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China

Correspondence: [*] Corresponding author: Xiang Li, State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Rd., 200240, Shanghai, China. E-mail: xiangliwj@sjtu.edu.cn

Abstract: A novel titanium (Ti) dental implant with pore architecture and enhanced structure was designed and fabricated using selective laser melting (SLM). Aimed at adding micro/nano structures on the porous Ti implant, alkali heat treatment was proposed. The fully interconnected porous part was in the midsection of the implant. The reinforced strut was embedded in the center of the porous part. The mechanical properties and surface morphology of the porous Ti implant were characterized. The desired micro/nano surface was obtained after alkali heat treatment. Mechanical test results showed that the ultimate strength was about 715 MPa, enough to withstand normal occlusal force and the stiffness of the Ti dental implant was about 26 GPa. This novel porous titanium dental implant with micro/nano surface may be promising to repair missing teeth.

Keywords: Dental implant, surface modification, porous titanium

DOI: 10.3233/JAE-171166

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 59, no. 3, pp. 1097-1102, 2019