Which of the following instruments does NOT come in contact with soft tissue?

The instrument that does not come into contact with soft tissue is the mirror. In dental practice, mirrors are primarily used to provide visibility and access to hard-to-see areas within the oral cavity. They allow dental professionals to view and access teeth and other structures without directly touching the soft tissues, such as gums and mucosa.

In contrast, scalpels, condensers, and burs are designed for direct interaction with soft tissues. Scalpels are used for incisions and surgical procedures involving soft tissues. Condensers are used to pack or condense dental materials and are often applied to the gums during restorative procedures. Burs, which are used with dental handpieces to cut, drill, or shape hard tissue such as teeth, can also inadvertently contact soft tissue if not handled carefully.

Understanding the specific roles of these instruments helps emphasize the importance of proper technique in avoiding unnecessary injury to soft tissues during dental procedures.