dental galvanism

dental galvanism
production of galvanic current in the oral cavity due to the presence of two or more dissimilar metals in dental restorations that are bathed in saliva, or a single metal restoration and two electrolytes, saliva and pulp tissue fluid, thus producing an electrolytic cell and an electric current. When such restorations touch each other, the current may be high enough to irritate the dental pulp and cause sharp pain. The anodic restoration or areas of a restoration are subject to electrolytic corrosion.

Medical dictionary. 2011.

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  • galvanism — 1. Direct current electricity produced by chemical action, as by a battery. 2. Oral manifestations of direct current electricity occurring when dental restorations with dissimilar electric potentials (such as silver and gold) are placed in the… …   Medical dictionary

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