California Registered Dental Assistant (RDA) Written Practice Exam

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The primary reason a surgical face mask must be used during a dental procedure is to?

  1. Prevent the patient from exposure to pathogens

  2. Protect the DHCP from exposure to spatter

  3. Maintain a sterile field

  4. Filter the air for the entire clinic

The correct answer is: Protect the DHCP from exposure to spatter

During dental procedures, high-speed drills and water instruments project droplets of saliva, blood, and debris from the patient's mouth. These droplets, also known as spatter, can contain infectious pathogens that may pose a risk to the dental healthcare provider (DHCP). Therefore, the primary reason for using a surgical face mask during a dental procedure is to protect the DHCP from exposure to spatter. Options A, C, and D may be important considerations in a dental setting, but they are not the primary reason for the use of a surgical face mask.

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