The effect of matrix phase morphology on the structure of Ag-Cu-Pd dispersed phase dental amalgam.

F. Mante, E. H. Greener, J. Gilbert, J. H. Lin

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Abstract

The effect of an Ag-Cu-Pd dispersant alloy on the structure of amalgams fabricated with two different particle types of low-copper amalgam matrices was investigated. In amalgams L and L (0), a low-copper lathe-cut amalgam Aristalloy was used as the matrix. In amalgams S and S(0), the matrix used was Spheralloy, a low-copper spherical amalgam. X-ray diffraction was used to analyse the relative content of the phases in the amalgams. The presence of Pd in the dispersant of amalgams L and S resulted in a decrease in the amount of eta' (Cu6Sn5) and an increase in the amount of unreacted particles when compared to the controls L(0) and S(0). Amalgams fabricated with a spherical alloy matrix (S and S(0)) showed a greater effect than amalgams fabricated with a lathe-cut matrix alloy (L and L(0)).

Original languageEnglish (US)
Pages (from-to)711-715
Number of pages5
JournalJournal of Oral Rehabilitation
Volume22
Issue number9
StatePublished - Sep 1995
Externally publishedYes

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ASJC Scopus subject areas

  • Dentistry(all)

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