title: Unexpected inorganic elements in oral lesions: results of X-ray energy spectroscopy (XES) on particulate matter in paraffin sections.
abstract: X-ray energy spectroscopy (XES) of all particulate matter found by light microscopy in histological sections of 222 oral lesions revealed a much wider range of elements than expected from dental amalgam. Subsequent XES of a variety of endodontic materials, impression materials and toothpastes indicated possible sources for virtually all elements identified in the histopathological lesions. The range of materials identified is tabulated; histopathological lesions and probable source substances are correlated; light microscopic pointers to the elemental nature of particulate matter in sections are indicated--titanium and bismuth have characteristic appearances; possible implications of local implantation and large scale ingestion of such substances are discussed.
mesh_terms: D001466:Barium Sulfate / Q000032:analysis; D003560:Cysts / Q000473:pathology*; D003723:Dental Amalgam / Q000032:analysis*; D003760:Dental Impression Materials / Q000032:analysis; D003764:Dental Materials / Q000032:analysis*; D004602:Elements / Q000032:analysis*; D006099:Granuloma / Q000473:pathology*; D006801:Humans; D009059:Mouth Diseases / Q000473:pathology*; D013057:Spectrum Analysis; D014100:Toothpastes / Q000032:analysis
chemical_list: D003760:Dental Impression Materials; D003764:Dental Materials; D004602:Elements; D014100:Toothpastes; D001466:Barium Sulfate; D003723:Dental Amalgam