Dental Assistant Practice Exam

During which type of disinfection are radiographic devices generally treated?

1. Low level disinfection

2. Intermediate level disinfection

3. Sterilization

4. High level disinfection

The correct answer is: High level disinfection

Radiographic devices are typically treated during high-level disinfection. High-level disinfection is a critical process that kills most microorganisms, including bacteria, viruses, and fungi, making it an essential step for equipment that comes into contact with mucous membranes or is used in invasive procedures. Radiographic devices, such as X-ray film holders and intraoral sensors, can harbor infectious agents and are often exposed to saliva or blood during dental procedures. This level of disinfection ensures that any residual pathogens are eliminated, providing a safe environment for both patients and practitioners. It is vital in a dental setting to adhere to high-level disinfection protocols for devices that have the potential to transmit infection, ensuring that healthcare-associated infections are minimized. In contrast, other types of disinfection, like low-level and intermediate-level, do not provide the same level of efficacy against all microorganisms, and sterilization is a more intensive process typically reserved for items that penetrate sterile tissues.