Oral galvanism

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Oral galvanism
dental electro-galvanism,
amalgam disease
Pseudomedical diagnosis

Oral galvanism or amalgam disease was a term for the association of oral or systemic symptoms to either: toxic effects of amalgam fillings; or electric currents between metal in dental restorations and electrolytes in saliva or dental pulp.[1][2][3] Any existence of galvanic pain or association of either currents or mercury to presence of symptoms has been disproven.[2][1] Beyond acute allergic reaction amalgam has not been found to be associated with any adverse effects.[4]

Very weak currents have been measured in the mouth of those with multiple dental fillings consisting of different alloys, but there was no association between presence of current and symptoms,[1] and any symptoms associated with currents between oral fillings are likely to be psychosomatic in nature.[2] N[3][5] Claims of causing a variety of symptoms such as oral discomfort, skin irritation, headaches and a metallic taste in the mouth have been discredited.[1]

The condition was originally proposed in 1878,[6] and became well known in Sweden during the 1970s and 80s, because of a campaign to educate about and replace oral amalgam fillings with mercury with other compounds such as ceramic or polymer restorations.[1]

See also[edit]


  1. ^ a b c d e Swedish Board of Health and Welfare for Statens offentliga utredningar (State Public Reports) (2003-05-01). "Dentala material och hälsa" [Dental materials and health]. Regeringskansliet (in Swedish). Government of Sweden. Retrieved 2017-06-26.
  2. ^ a b c "Amalgam Myths and Facts". www.dentalwatch.org. Retrieved 2017-06-26.
  3. ^ a b Lundberg, Ante (1998). The Environment and Mental Health : a Guide for Clinicians. Mahwah, N.J.: Lawrence Erlbaum Associates. p. 119. ISBN 0805829075. OCLC 37947667. A recent review by the Swedish Board of Health and Welfare concluded that there was no scientific support for the belief that amalgam fillings caused systemic diseases.
  4. ^ "A National Clinical Guideline for the Use of Dental Filling Materials" (PDF). Directorate for Health and Social Affairs, Norway. December 2003. Retrieved July 10, 2018.
  5. ^ "Composite Resin versus Amalgam for Dental Restorations: A Health Technology Assessment — Project Protocol | CADTH.ca". www.cadth.ca. p. 24. Retrieved 2018-07-09.
  6. ^ Schriever W, Diamond LE (1952) “Electromotive forces and electric currents caused by metallic dental fillings” J Dent Res. 31(2): 205-229; PMID 14917837.