An Experimental Gallium-Containing Alloy for Plastic Restoration in vivo andin vitro
1994 年 14 巻 2 号 p. 145-149
詳細
1994 年 14 巻 2 号 p. 145-149
The effect of the Pd content in a powder alloy which was triturated with a commercial Ga-containing liquid alloy was evaluated by measuring its mechanical properties and by its clinical performance in class I restorations. Experimental powder alloys were prepared by reducing the Pd content of a commercial powder alloy, which contained 10 wt % Pd, to either 3 wt % or 0 wt % (Pd-free alloy). The clinical performance of the restorations was significantly improved by decreasing the Pd content to 3 wt %, and the degree of marginal integrity correlated with the creep. Therefore, these results suggest that the Pd content in the commercial alloy should be reduced to 3 wt % to improve its clinical longevity.
