• J. Dent. Res. · Mar 2001

    A new Ti-5Ag alloy for customized prostheses by three-dimensional printing (3DP).

    • S B Hong, N Eliaz, G G Leisk, E M Sach, R M Latanision, and S M Allen.
    • Harvard School of Dental Medicine, Boston, MA, USA.
    • J. Dent. Res. 2001 Mar 1; 80 (3): 860-3.

    AbstractThree important considerations in the fabrication of customized cranio-maxillofacial prostheses are geometric precision, material strength, and biocompatibility. Three-dimensional printing (3DP) is a rapid part-fabrication process that can produce complex parts with high precision. The aim of this study was to design, synthesize by 3DP, and characterize a new Ti-5Ag (wt%) alloy. Silver nitrate was found to be an appropriate inorganic binder for the Ti powder-based skeleton, and the optimum sintering parameters for full densification were determined. The hardness of the Ti-5Ag alloy was shown to be much higher than that of a pure titanium sample. Potentiodynamic measurements, carried out in saline solution at body temperature, showed that the Ti-5Ag alloy had good passivation behavior, similar to that of pure titanium. It is concluded that the Ti-Ag system may be suitable for fabrication of customized prostheses by 3DP.

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