National Dental Examining Board of Canada (NDEB) Practice Exam

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Which procedure must be done to ensure acceptable mercury hygiene in a dental office?

  1. Wearing masks at all times

  2. Using dental dams for all procedures

  3. Use of high volume evacuation when working with amalgam

  4. Sterilizing instruments after each use

The correct answer is: Use of high volume evacuation when working with amalgam

High volume evacuation is required when working with amalgam in order to ensure acceptable mercury hygiene in a dental office. This is because amalgam fillings contain mercury, which can create toxic vapors when being manipulated. Wearing masks and sterilizing instruments after each use may be important hygiene practices, but they are not specifically related to mercury. Using dental dams for all procedures can also help with hygiene, but they do not address the issue of mercury specifically. Therefore, option C is the best procedure to follow for ensuring acceptable mercury hygiene in a dental office.

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