Dissimilar metals in the mouth as a possible cause of otherwise unexplainable symptoms.

Author: Hyams BL, Ballon HC.

Source: Canadian Medical Association Journal

Year: 1933

Comment:

This study has been cited for suggesting that dissimilar metals in the mouth can contribute to electrical activity and corrosion and that in some individuals, this can cause unexplained pain, ulcerations, inflammation, and other conditions.

Abstract / Excerpt:

“Recent investigations have demonstrated the fact that metals in the mouth may set up electro-galvanic discharges.  These discharges take place between dissimilar metals, and, according to Solomon, Reinhard and Goodale, on some few occasions between alloys of the same type. THEORY: It is generally well known that electrical energy is produced when dissimilar metals are immersed in an electrolyte. The metals are found to be arranged in the electromotive force series from positive (highest potential) to negative as follows: (positive end) aluminum, zinc, chromium, iron, nickel, tin, copper, mercury, silver, palladium, platinum, gold (negative end). Electrogalvanic activity parallels chemical activity.”

Citation:

Hyams BL, Ballon HC. Dissimilar metals in the mouth as a possible cause of otherwise unexplainable symptoms. Canadian Medical Association Journal. 1933; 29(5):488.