Infection Control · single question
Which engineering control is used to prevent splatter in the dental operatory?
Show answer and explanation
Correct answer: A. High-volume evacuation (HVE) + appropriate ventilation and physical barriers
✓ A) High-volume evacuation with ventilation and barriers is correct.
Engineering controls to reduce splatter/aerosol include: high-volume evacuation (HVE) systems, appropriate room ventilation (HVAC, air changes per hour), physical barriers/shields, and rubber dams. These are preferred over PPE (which is a lower hierarchy control) because they reduce aerosol at the source before it can contact personnel. Scheduling infected patients separately is an administrative control.
Engineering controls to reduce splatter/aerosol include: high-volume evacuation (HVE) systems, appropriate room ventilation (HVAC, air changes per hour), physical barriers/shields, and rubber dams. These are preferred over PPE (which is a lower hierarchy control) because they reduce aerosol at the source before it can contact personnel. Scheduling infected patients separately is an administrative control.
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