Potential sources of cross-contamination include which of the following?

The correct answer highlights that dental prostheses can be a potential source of cross-contamination in a dental setting. Dental prostheses, such as dentures, crowns, and bridges, are often exposed to saliva and blood from patients, making them susceptible to carrying pathogenic microorganisms. If these items are not properly cleaned and disinfected before being used on another patient, they can easily transmit infections.

In contrast, non-disposable gloves, while they can be a source of cross-contamination if reused improperly, are designed for single-use to prevent this issue. Proper infection control protocol typically mandates that gloves be changed between patients. X-ray film can also be contaminated but is usually processed in a way that minimizes direct handling, particularly with barrier techniques. Hand sanitizer is a tool to reduce microbial presence on hands and typically does not contribute to cross-contamination when used correctly. Each of these other options has specific protocols to mitigate cross-contamination risks, emphasizing the importance of using dental prostheses with caution to ensure patient safety.