Galvanic shock or oral galvanism is a term used for the association of oral symptoms due to electric currents occurring between different types of metal used in amalgam dental fillings and their interactions with the electrolytes in saliva.[1][2] Other than individual sensitivity to amalgam, which can produce oral lesions, no associated adverse effects to amalgam have been found.[3][4] However, Mutter in a German study concluded that "removal of dental amalgam leads to permanent improvement of various chronic complaints in a relevant number of patients in various trials".[5]
The condition of galvanic shock was originally proposed in 1878,[6] and became well known in Sweden during the 1970s and 80s, because of a campaign to raise awareness, and replace dental amalgam fillings containing mercury with other compounds such as ceramic or polymer restorations.[2]
^James, Lara (8 November 2020). "Galvanized Shock: Some Dental Patients Can Still Experience a Shocker". Today's RDH. Retrieved 22 May 2022.
^ abSwedish 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.
^Health, Center for Devices and Radiological (18 February 2021). "Dental Amalgam Fillings". FDA. Retrieved 22 May 2022.
^"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.
^Mutter, J; Naumann, J; Walach, H; Daschner, F (2005). "Amalgam: Eine Risikobewertung unter Berücksichtigung der neuen Literatur bis 2005" [Amalgam risk assessment with coverage of references up to 2005]. Gesundheitswesen (Bundesverband der Arzte des Offentlichen Gesundheitsdienstes (Germany)) (in German). 67 (3): 204–16. doi:10.1055/s-2005-857962. PMID 15789284. S2CID 72012543.
^Schriever W, Diamond LE (1952) “Electromotive forces and electric currents caused by metallic dental fillings” J Dent Res. 31(2): 205-229; PMID 14917837.
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