Which of the following practices is essential for controlling cross-contamination in a dental office?

Using disposable barriers where possible is essential for controlling cross-contamination in a dental office because they provide a protective layer that prevents the transfer of pathogens between surfaces and instruments. Barriers can shield frequently touched surfaces, such as dental operatories, light handles, and computer keyboards, from contaminants that are introduced during patient treatment. This practice helps minimize the risk of infection transmission by ensuring that surfaces that come into contact with patients are disinfected less frequently and remain clean throughout the treatment process.

Employing disposable barriers is also aligned with best practices recommended by infection control guidelines, which emphasize the importance of maintaining a sterile environment to protect both patients and dental staff. By using barriers, dental professionals can enhance their infection control measures, which is crucial in a healthcare setting where the risk of cross-contamination is significant.