National Dental Assisting Examining Board (NDAEB) Practice Exam

What must be used to protect dental personnel from occupational risks associated with nitrous oxide?

1. Scavenger System

2. High-efficiency masks

3. Safety goggles

4. Protective gloves

The correct answer is: Scavenger System

The appropriate measure to protect dental personnel from the occupational risks associated with nitrous oxide is the use of a scavenger system. This system is designed to capture and remove excess nitrous oxide from the dental operatory, preventing it from being released into the atmosphere where staff and patients could be exposed to it. When nitrous oxide is used, there is a potential for inhalation exposure, which can pose health risks such as headaches, dizziness, and long-term neurological effects. By using a scavenger system, the concentration of nitrous oxide in the room is minimized, thereby significantly reducing the likelihood of adverse health effects for the dental team. The effectiveness of the scavenger system is crucial, as it helps maintain a safe working environment, adhering to occupational health and safety standards. Other measures, such as high-efficiency masks, safety goggles, and protective gloves, serve important roles in overall safety within the dental practice but do not specifically target the risks associated with nitrous oxide exposure. For instance, high-efficiency masks are typically used to protect against airborne particles or pathogens, while safety goggles provide eye protection from splashes or debris, and gloves protect from direct contact with substances. However, none of these options are specifically designed to manage the inhalation risk posed