title: Exposure to silica and primary Sjögren's syndrome in a dental technician.
mesh_terms: D000368:Aged; D003800:Dental Technicians; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000209:etiology*; D012822:Silicon Dioxide / Q000009:adverse effects*; D012859:Sjogren's Syndrome / Q000209:etiology*
chemical_list: D012822:Silicon Dioxide