title: Allergic contact gingivostomatitis due to gold.
abstract: The sixth case of an allergic contact gingivostomatitis to gold crowns previously misdiagnosed as erosive lichen planus is reported. Patch tests to gold chloride (0.5%) and 0.05 cm3 intradermal gold sodium thiomalate (Myochrysine 50 mg/cm3) were positive at 48-72 h. Histopathology of the allergic contact gingivitis revealed a pseudolymphomatous inflammatory dermal reaction with a dense lymphohistiocytic and plasma cell infiltrate. Removal of the gold crowns resulted in a gradual resolution of the gingivostomatitis in 4-6 months, and the patient has remained free of clinical disease for over 3 years. A review of the reported cases of allergic gingivostomatitis to gold crowns revealed that each patient clinically presented with an erosive and ulcerative inflammatory response was usually associated with a clinical history of gold jewelry intolerance.
mesh_terms: D000328:Adult; D003442:Crowns / Q000009:adverse effects; D003764:Dental Materials / Q000009:adverse effects*; D003877:Dermatitis, Contact / Q000175:diagnosis / Q000209:etiology*; D005891:Gingivitis / Q000175:diagnosis / Q000209:etiology*; D006046:Gold / Q000009:adverse effects*; D006801:Humans; D008297:Male; D013280:Stomatitis / Q000209:etiology*; D013282:Stomatitis, Denture / Q000175:diagnosis / Q000209:etiology*
chemical_list: D003764:Dental Materials; D006046:Gold