Which one of the following options is not a typical use of a mouth mirror during dental procedures?

The typical uses of a mouth mirror during dental procedures include aiding vision, reflecting light, and retracting tissues. A mouth mirror is primarily designed to allow the dentist or dental nurse to see areas of the mouth that are otherwise difficult to view directly. It assists in visualizing teeth and soft tissues, making it easier to diagnose conditions and plan treatments.

Reflecting light is another essential function of the mouth mirror. By positioning the mirror at angles that capture light from overhead sources, it helps illuminate dark areas of the mouth, enhancing visibility and aiding in precise dental work.

Retracting tissues is also an important role for a mouth mirror. It can be used to keep the soft tissues of the cheeks and tongue out of the way, providing better access and visibility for the dentist during procedures.

Detecting overhangs, while relevant in certain contexts like assessing dental restorations or carious lesions, is not a primary function of a mouth mirror itself. Overhang detection is more effectively achieved through direct visual inspection or with specialized instruments. Therefore, while it may occur in some cases, it does not represent the typical or main use of a mouth mirror, which is primarily focused on enhancing visibility and accessibility during dental work.