AN EVALUATION OF CASTING ALLOYS USEDFOR RESTORATIVE PROCEDURES

Dental casting alloys have played a major role in the restorative proc ess for three-quarters of a century. Gold-based compositions were used almost exclusively for most of that time-but because of their relativ ely high cost, they began to be replaced by a number of base metal all oys. This article discusses some of the most recent findings about the compositions of alloy systems and the possible tissue responses to th ose systems.