Which of the following best describes the role of a dental assistant in infection control?

The role of a dental assistant in infection control is best described by their responsibility for ensuring that all equipment and instruments are properly sterilized. Infection control is a crucial aspect of dental practice, as it ensures the safety of both patients and dental staff by preventing the transmission of pathogens.

Dental assistants are trained in infection control protocols, which include understanding how to properly clean, disinfect, and sterilize instruments and surfaces. They are actively involved in the preparation and management of the operatory environment, which includes adhering to established guidelines for infection control. This supports the overall strategy of maintaining a safe and hygienic workplace, which is vital in a healthcare setting.

In contrast, the other options highlight roles that are not typically associated with infection control. Responsibilities such as managing financial operations, creating marketing strategies, or performing dental procedures independently do not address the direct necessity of infection control within a dental practice. Thus, the focus on sterilization and infection control procedures ensures that dental assistants play a significant role in patient safety and quality care.