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1. Which of the following is an example of personal protective equipment
(PPE) commonly used in a dental clinic?
A. Scrubs
B. Face mask
C. Safety glasses
D. All of the above
Answer: D. All of the above
Rationale: Personal protective equipment (PPE) in a dental clinic includes
scrubs, face masks, safety glasses, gloves, and protective clothing.
2. What is the correct procedure for handling contaminated instruments in
the dental clinic?
A. Rinse them with water
B. Place them in a covered container
C. Dispose of them in the regular trash
D. None of the above
Answer: B. Place them in a covered container
Rationale: Contaminated instruments should be handled carefully and
placed in a covered container to prevent the spread of infection.
3. Which of the following is an example of a biohazardous waste?
A. Paper towels
B. Blood-soaked gauze
C. Plastic packaging
D. None of the above
Answer: B. Blood-soaked gauze
Rationale: Biohazardous waste includes any materials contaminated with
blood or other potentially infectious materials.
4. How should dental assistants properly clean and disinfect treatment
rooms between patients?
A. Wipe surfaces with a damp cloth
B. Use an EPA-approved disinfectant
C. Spray with water
D. None of the above
Answer: B. Use an EPA-approved disinfectant
Rationale: Treatment rooms should be cleaned and disinfected between
patients using an EPA-approved disinfectant to prevent the spread of
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