title: Patch testing with amalgam at various concentrations.
abstract: 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.
authors.affiliation: Department of Dermatology, Technical University of Munich, FRG.
authors.forename: J
authors.initials: J
authors.lastname: von Mayenburg
authors.forename: J
authors.initials: J
authors.lastname: Rakoski
authors.forename: C
authors.initials: C
authors.lastname: Szliska
mesh_terms: 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
chemical_list: D003723:Dental Amalgam; D008628:Mercury