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齒科用 Amalgam 合金의 微細構造

The Microstructure of Dental Amalgam

대한치과기재학회지 1966년 1권 2호 p.3 ~ 7
鮮于良國,
소속 상세정보

鮮于良國 (  ) - 서울대학교 齒科大學 齒科材料學敎室

Abstract


It was the purpose of this study to determine the influence of the mercury-alloy ratio, the methods of trituration and the variation of trituration time on the microstructure of dental amalgam. The results were as follows.
1. Variations of the mercury content in the amalgam have a definite influence on the microstructure; the higher the mercury content, the more porosities and cracks were developed.
2. A photomicrograph of the surface of a hardened amalgam with the alloy-mercury ratio, 1.0: 1.6 showed fewer alloy particles and more the matrix than in the amalgam with the alloy-mercury ratio, 1.5:1.0 by weight.
3. The method and the length of trituration time did not have any appreciable effect on the microstructure of the amalgam.

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