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Dissolution of Mercury from Amalgam into Saline Solution

Department of Dental Materials, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246

J. Ferracane

Department of Dental Materials, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246

C. Cooper

Department of Dental Materials, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246

H. Matsumoto

Visiting Scientist from Sunstar, Inc., 5-10-1 Kamihamuro, Takatsuki, Osaka 569, Japan

M. Wagner

Department of Biochemistry, Baylor College of Dentistry, 3302 Gaston Avenue, Dallas, Texas 75246

Dissolution of mercury from amalgams and some intermetallic compounds found in the amalgam structure, such as ₁, ₂, and β₁, was examined during one week of aging in 0.9% NaCl solution at 37°C. The amount of mercury released from ₁(30.2 µg/cm²) was at least 13 times that released from amalgam (0.5 - 2.2 µg/cm²) and five times that released from β₁(5.7 µg/cm²). ₂ released the least amount of mercury (0.46 µg/cm²). The study revealed that as high as 55% of the mercury ions liberated from the amalgams and the amalgam phases was adsorbed onto the walls of the vials in which the specimens were aged.

Journal of Dental Research, Vol. 66, No. 1, 33-37 (1987)
DOI: 10.1177/00220345870660010701


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