Abstract
The content and rationale of Standards for Dental Amalgam Alloys are discussed. The properties of amalgams made from 50 alloys used in Australia were determined according to methods in the Standards and the results are presented to enable comparison between low and high copper amalgams. The limits for the physical tests are discussed in the light of the range of values obtained. In general, the high copper amalgams showed higher one hour compressive strengths, lower creep and plastic deformation than low copper amalgams. No difference in dimensional change was found.
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