Abstract
This study, investigated the factors that influence compressive properties of dental amalgam, such as proof stress, crushing strength and compression.
Compressive proof stress was affected significantly by the compression rate whereas crushing strength was affected by various factors. The stress relaxation and the creep of amalgam had large effects on the compressive properties. Compressive proof stress was more useful for evaluations the strength of materials than by crushing strength because proof stress values showed less deviation than those of crushing strength.