Patch testing with amalgam at various concentrations.
27 patients with positive D3 reactions on patch testing to 3 mercury screening allergens were patch tested with 13 mercury patch test preparations, 6 inorganic and 7 organic, and amalgam 20% pet. The 13 patients (all women) showing positive reactions to 20% amalgam were then patch tested to reducing concentrations. 2 patients reacted down to 1%, 4 down to 2%, 4 down to 5%, 2 down to 10% and 1 only to 20%, a total of 10 of the 13 patients therefore reacting to the 5% concentration of amalgam. The appropriate patch test concentration of amalgam is discussed and the clinical significance and female preponderance of amalgam reactivity suggested as being worthy of further investigation.
von Mayenburg
J
J
Department of Dermatology, Technical University of Munich, FRG.
Rakoski
J
J
Szliska
C
C
D000293:Adolescent; D000328:Adult; D003723:Dental Amalgam / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis* / Q000209:etiology; D008628:Mercury / Q000009:adverse effects; D008875:Middle Aged; D010328:Patch Tests / Q000379:methods
D003723:Dental Amalgam; D008628:Mercury