Jochen D G, Caputo A A, Matyas J
V. A. Wadsworth Medical Center, Los Angeles, Calif.
J Prosthet Dent. 1991 Apr;65(4):588-91. doi: 10.1016/0022-3913(91)90304-f.
The effect of various percentages of reused silver-palladium alloy on the bond strength of porcelain was considered. All-new metal and once-cast alloy with the addition of 50% new metal produced the highest bond values. Once-cast alloy with less than 50% new metal produced bond strength values that were significantly lower. When using this silver-palladium alloy, 50% new alloy should be added to each casting button, and buttons with questionable casting history should not be used.
