DANB Infection Control — Questions and Answers
Question 1: What is the most effective method for sterilizing dental instruments?
- Chemical immersion
- Dry heat
- Ultrasonic cleaning
- Autoclaving (Correct answer)
Correct answer: Autoclaving
Autoclaving uses saturated steam under pressure to achieve sterilization, effectively killing all microorganisms, including spores. This method is considered the most reliable and widely accepted for heat-tolerant dental instruments. It ensures the complete destruction of pathogens, preventing cross-contamination between patients.
Question 2: Which of the following personal protective equipment (PPE) must be worn during a dental procedure?
- Gloves only
- Mask and gloves
- Full PPE including gloves, mask, eyewear, and gown (Correct answer)
- Gown and gloves only
Correct answer: Full PPE including gloves, mask, eyewear, and gown
Full personal protective equipment (PPE) is essential during dental procedures to protect both the patient and the dental team from exposure to blood, saliva, and aerosols. This comprehensive barrier includes gloves for hand protection, a mask to prevent inhalation of airborne particles, eyewear to shield the eyes from splashes, and a gown to protect clothing from contamination.
Question 3: What is the primary purpose of using barrier techniques in infection control?
- To make the equipment look clean
- To reduce the need for hand hygiene
- To eliminate airborne pathogens
- To prevent surface contamination (Correct answer)
Correct answer: To prevent surface contamination
Barrier techniques involve covering clinical contact surfaces with disposable materials like plastic wraps or foils. The primary purpose is to prevent these surfaces from becoming contaminated with patient fluids during treatment. This significantly reduces the need for extensive disinfection between patients and helps maintain a sterile environment.
Question 4: How should sharps like needles be disposed of?
- In regular trash
- In a cardboard box
- In a sharps container (Correct answer)
- In a plastic bag
Correct answer: In a sharps container
Sharps, such as needles, scalpel blades, and orthodontic wires, pose a significant risk of percutaneous injury and transmission of bloodborne pathogens. They must be immediately disposed of in a puncture-resistant, leak-proof sharps container. This prevents accidental needlesticks and ensures the safety of dental staff and waste handlers.
Question 5: When should hand hygiene be performed during patient care?
- Only at the end of the day
- Before gloving and after removing gloves (Correct answer)
- Once in the morning
- Only when visibly soiled
Correct answer: Before gloving and after removing gloves
Proper hand hygiene is a cornerstone of infection control. It must be performed before putting on gloves to ensure hands are clean and free of microorganisms. It is also crucial to perform hand hygiene immediately after removing gloves to eliminate any potential contamination that may have occurred during the procedure or from glove tears.
Question 6: What is the role of the OSHA Bloodborne Pathogens Standard in dentistry?
- To control noise levels
- To regulate insurance practices
- To protect dental workers from bloodborne disease exposure (Correct answer)
- To set pricing for dental procedures
Correct answer: To protect dental workers from bloodborne disease exposure
The OSHA Bloodborne Pathogens Standard mandates specific practices and precautions in healthcare settings, including dentistry, to protect employees from exposure to blood and other potentially infectious materials. It requires employers to provide training, PPE, vaccination, and safe work practices. This minimizes the risk of transmitting diseases like HIV and hepatitis among dental workers.
DANB Infection Control
What is the most effective method for sterilizing dental instruments?