[Metal-porcelain bonding in precious metal dental alloy]

The metal-ceramic bond of a dental alloy free of non-precious components was investigated in bending and three-point-bending test. Light and scanning electron microscopic examination as well as wavelength dispersive x-ray analyses were carried out. They showed no alterations in structure or concentration of the components in the area of the metal-ceramic boundary, due to diffusion and oxidation processes in the extent known from conventional bonding alloys. The results lead to the conclusion that the tested alloy is suitable for ceramic veneering under limited indication.