A New Ti-5Ag Alloy for Customized Prostheses by Three-dimensional Printing (3DP™)

Three 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...

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Bibliographic Details
Published in:Journal of dental research 2001-03, Vol.80 (3), p.860-863
Main Authors: Hong, S.-B., Eliaz, N., Leisk, G.G., Sachs, E.M., Latanision, R.M., Allen, S.M.
Format: Article
Language:English
Subjects:
Alloys - chemical synthesis
Alloys - chemistry
Chemical Phenomena
Chemistry, Physical
Computer Simulation
Computer-Aided Design
Corrosion
Crystallography
Dentistry
Electrochemistry
Hardness
Hot Temperature
Humans
Imaging, Three-Dimensional
Maxillofacial Prosthesis
Metallurgy
Microscopy, Electron, Scanning
Potentiometry
Prosthesis Design
Silver - chemistry
Silver Nitrate - chemistry
Sodium Chloride
Surface Properties
Temperature
Titanium - chemistry
Vacuum
X-Ray Diffraction
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Summary:Three 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™.
ISSN:0022-0345
1544-0591
DOI:10.1177/00220345010800030301