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