<研究論文>歯科用アマルガムの塩化ナトリウム溶液中における電位走査曲線 : 塩化ナトリウム濃度の影響

概要

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Polarization behavior of dental amalgams in 0.03-2.0N sodium chloride solutions were studied by the potential sweep method with a sweep rate of 200mV/s and potential ranges 0.3-1.7V (SCE) or 0.0-1.7V (SCE). The dental amalgam electrodes studied were prepared from a conventional amalgam alloy and three high-copper amalgam alloys according to the manufacturers' instructions in regard to mercury-alloy ratios and trituration times. The dissolution of tin from the conventional dental amalgam increased with the concentration of sodium chloride solutions and a current peak of the dissolution was obtained at concentrations above 0.6N. Also, the dissolution of copper from the high-copper amalgams increased with the concentration of sodium chloride solutions and a current peak of the dissolution was obtained at concentration of 0.6N. Above 1.0N. an appreciable dissolution of copper occurred below the potentials of 0.0V (SCE).
日本大学の論文
2001-12-25