Mercury exposure from dental amalgam. Risk assessment and clinical evaluation

摘要: Inorganic mercury is absorbed in small amounts from dental amalgam fillings. Exposure can be calculated by measuring the level of blood or urine (u-Hg). The average u-Hg Norwegians approximately 2-3 micrograms/g creatinine (approximately 1-2 nmol/mmol creatinine). Classic signs poisoning occur a fraction long-term exposed subjects with > 100 (56 Subtle effects (e.g. enzymuria, altered selenium metabolism, and changes tremor spectra) have been reported humans at levels 20-35 11-20 There widespread concern about possible adverse Data on exposure-response relationships make it less likely that low-level exposure fillings should cause symptoms physical signs. Studies association between negative. Patients allegedly caused undergo thorough medical examination. Based patient's adequate time allowed for careful recording history, examination relevant laboratory tests.