Abstract
We experimentally produced three Ti-Ni-Pd-Sn alloys with Ti contents of 5, 10 and 90wt% and examined their properties for the use of titanium alloys as dental prosthetic materials that possess the excellent characteristics of the metal.
1. Mechanical properties of 10 and 90wt% titanium alloys such as the hardness and tensile strength were similar, and were better than those of commercial alloys, but the 5wt% alloy was softer.
2. The bonding strength to porcelain was the greatest in the 10wt% alloy, and the material is considered to be applicable also as an alloy for porcelain.
3. The amounts of Ti and Ni eluted from the alloys were markedly less than those from commercial alloys, and elution of other elements was minimal.
4. These experimental alloys are considered to be clinically useful as dental prosthetic materials.
