California Registered Dental Assistant (RDA) Written Practice Exam

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Heat sterilization of extracted teeth may result in

  1. The teeth becoming brittle

  2. The vaporization of mercury, presenting a health hazard

  3. No change to the teeth

  4. Increased strength of the teeth

The correct answer is: The vaporization of mercury, presenting a health hazard

When extracted teeth are heat sterilized, the high temperatures can cause the vaporization of any remaining mercury in the teeth, which can be a health hazard. This process also causes the teeth to become brittle, making them more prone to breaking and less useful for certain procedures. Heat sterilization does not result in no change to the teeth or increased strength.

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