Mercury intoxication in dental office mainly results from____________?
Correct answer: D. Inhalation of mercury vapours
- A. Direct contact with the mercury
- B. None of the above
- C. Ingestion of mercury
- D. Inhalation of mercury vapours
Explanation
Mercury is volatile at room temperature, so occupational exposure in a dental office mainly occurs by inhaling mercury vapour, especially from spills or contaminated surfaces. Skin contact is a less important route of routine exposure.
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