Behavior of three high-Cu amalgams.

D B Mahler

doi:10.1002/jbm.820130503

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Behavior of three high-Cu amalgams.

D B Mahler

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Abstract

Amalgams made from three single-composition high-Cu alloys of the same nominal composition were investigated for differences in creep behavior. The curves of creep vs. final Hg content for all three alloys showed a sudden creep increase (jump) at approximately 46% final Hg content. Previous studies have shown this creep jump to be associated with the initiation of the Sn--Hg phase (gamma 2). The anticipated final Hg content in clinical restorations for two of these alloys is below the creep jump and gamma 2 would not be expected. On the other hand, the clinical Hg content for the third alloy was above its creep jump and gamma 2 would be expected. The effect on clinical behavior of this finding require further investigation.

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Chemical Phenomena Chemistry, Physical Copper Dental Amalgam Dental Stress Analysis Mercury Stress, Mechanical Comparative Study Journal Article Research Support, U.S. Gov't, P.H.S.

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D B Mahler. 1979. Behavior of three high-Cu amalgams.. https://doi.org/10.1002/jbm.820130503

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