Great Smokies Medical Center of Asheville

MSDS From Mercury Amalgam Manufacturer

Caulk Company, a manufacturer of dental amalgam, published the Material Safety Data Sheet (MSDS) for dental amalgam. MSDS sheets are required by the U. S. Occupational Health and Safety Administration (OSHA) for potential toxic workplace exposures. Of particular importance are some statements made in “Section VIII – Control Measures, Inhalation, Chronic: Inhalation of mercury vapour over a long period may cause mercurialism, which is characterized by fine tremors and erethism. Tremors may affect the hands first, but may also become evident in the face, arms, and legs. Erethism may be manifested by abnormal shyness, blushing, self consciousness, depression or despondency, resentment of criticism, irritability or excitability, headache, fatigue, and insomnia. In severe cases, hallucinations, loss of memory, and mental deterioration may occur. Concentrations as low as 0.03 mg/m3 have induced psychiatric symptoms in humans. Renal involvement may be indicated by proteinuria, albuminuria, enzymuria, and anuria. Other effects may include salivation, gingivitis, stomatitis, loosening of the teeth, blue lines on the gums, diarrhea, chronic pneumonitis and mild anemia. Repeated exposure to mercury and its compounds may result in sensitisation. Intrauterine exposure may result in tremors and involuntary movements in the infants. Mercury is excreted in breast milk. Paternal reproductive effects and effects on fertility have been reported in male rats following repeated inhalation exposures.”

Considering that less toxic alternatives are available for filling cavities, both scientists and informed consumers remain incredulous that controversy still exists about the continued, intentional use of mercury in dentistry.

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