Which of the following is an example of a noncritical device used in dental radiography?

In dental radiography, the position indicating device (PID) is classified as a noncritical device because it does not come into direct contact with a patient's mucous membranes or any sterile areas during the imaging process. Noncritical instruments and devices, like the PID, typically require cleaning and intermediate-level disinfection but do not necessitate sterilization.

In contrast, surgical burs, bone chisels, and scalpels are classified as critical instruments since they are intended to penetrate soft tissue or bone, and therefore require sterilization to prevent infection. Understanding these classifications is essential in infection control, as it guides the appropriate levels of cleaning and disinfection required for different types of dental instruments and devices.