Fatigue characterization of nine dental amalgams

Dental amalgams prepared from nine commercially available dental amalgam alloys, including high copper ternary, high copper blend, and a conventional alloy, were evaluated for their compressive fatigue behaviour to at least 10(6) cycles. While the fatigue behaviour of all high copper amalgams was similar, statistically significant differences in cycles to failure amongst these amgalgams were detected as a function of load, with Sybraloy demonstrating the greatest overall resistance to fatigue failure.