Dental Infection Control 1 — Questions and Answers
Question 1: What are standard precautions in dental practice?
- Optional safety measures
- Infection control practices applied to all patients regardless of diagnosis, including PPE, hand hygiene, and sterilization (Correct answer)
- Only needed for surgical procedures
- Only for patients with known infections
Correct answer: Infection control practices applied to all patients regardless of diagnosis, including PPE, hand hygiene, and sterilization
Standard precautions treat all blood and body fluids as potentially infectious, requiring consistent use of PPE, hand hygiene, and instrument sterilization for every patient.
Question 2: What is an autoclave used for in dentistry?
- Drying instruments
- Sterilizing dental instruments using steam under pressure to kill all microorganisms including spores (Correct answer)
- Sharpening instruments
- Storing instruments
Correct answer: Sterilizing dental instruments using steam under pressure to kill all microorganisms including spores
An autoclave uses pressurized steam (typically 121°C/250°F at 15 PSI for 15-30 minutes) to achieve complete sterilization of dental instruments.
Question 3: When should dental professionals perform hand hygiene?
- Only after treating patients
- Before and after each patient contact, after removing gloves, and after touching contaminated surfaces (Correct answer)
- Only at the start of the day
- Only when hands are visibly dirty
Correct answer: Before and after each patient contact, after removing gloves, and after touching contaminated surfaces
Hand hygiene is required at multiple points during patient care to prevent cross-contamination between patients and between contaminated and clean areas.
Question 4: What PPE is required for dental procedures that generate aerosols?
- Gloves only
- Gloves, mask (N95 for high-risk), eye protection, face shield, and protective gown (Correct answer)
- Only a surgical mask
- No special PPE is needed
Correct answer: Gloves, mask (N95 for high-risk), eye protection, face shield, and protective gown
Aerosol-generating procedures require comprehensive PPE because aerosolized particles can contain blood, saliva, and potentially infectious microorganisms.
Question 5: What is the proper procedure for handling a sharps injury (needlestick)?
- Ignore it if the patient is healthy
- Wash the wound immediately, report the incident, identify the source patient, and seek post-exposure evaluation (Correct answer)
- Apply a bandage and continue working
- Only report it if you feel sick later
Correct answer: Wash the wound immediately, report the incident, identify the source patient, and seek post-exposure evaluation
Sharps injuries require immediate wound care, incident reporting, source patient evaluation, and post-exposure protocols including possible PEP (post-exposure prophylaxis).
Question 6: What is the 'chain of infection' and why is it important in dentistry?
- A jewelry store concept
- The sequence of events (agent, reservoir, portal of exit, transmission, portal of entry, host) needed for infection to spread — breaking any link prevents transmission (Correct answer)
- A dental instrument chain
- A billing process
Correct answer: The sequence of events (agent, reservoir, portal of exit, transmission, portal of entry, host) needed for infection to spread — breaking any link prevents transmission
Understanding the chain of infection helps dental professionals identify and break links in the transmission process through proper infection control measures.
Dental Infection Control 1
What are standard precautions in dental practice?