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Journal of Dental Research
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*Compound via MeSH
*Substance via MeSH
Hazardous Substances DB
*COPPER, ELEMENTAL
*SILVER COMPOUNDS
*SILVER, ELEMENTAL
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Materials Science

Copper and Silver Corrosion Activity in Crown and Bridge Alloys

David C. Wright

Research Division, J. M. Ney Co., Bloomfield, Connecticut 06002

R.M. German

Research Division, J. M. Ney Co., Bloomfield, Connecticut 06002

Robert F. Gallant

Research Division, J. M. Ney Co., Bloomfield, Connecticut 06002

Effects of decreased alloy nobility are measured with respect to copper and silver corrosion activity. A potentiodynamic technique is developed for this analysis. It is shown that copper and silver have characteristic potentials for which individual current densities are maximal. Identification of characteristic potentials allows the definitive analysis of 11 commercial crown and bridge alloys for copper and silver corrosion. It is shown that microstructure, as well as alloy chemistry, plays a major role in determining corrosion resistance.

Journal of Dental Research, Vol. 60, No. 4, 809-814 (1981)
DOI: 10.1177/00220345810600040701
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P.P. Corso Jr, R.M. German, and H.D. Simmons Jr
Corrosion Evaluation of Gold-based Dental Alloys
Journal of Dental Research, May 1, 1985; 64(5): 854 - 859.
[Abstract] [PDF]