Which type of supervision does NOT permit a dental assistant to perform procedures?

In the context of dental supervision, general supervision means that a dentist authorizes a dental assistant to perform certain procedures or tasks, but the dentist does not necessarily have to be physically present during the procedures being performed. However, this type of supervision typically allows for the delegation of certain tasks within predefined guidelines.

The type of supervision that does not permit a dental assistant to perform any procedures is known as no supervision. Under no supervision, the dental assistant cannot undertake any tasks that would require oversight or delegation by a licensed dentist, as there are no supervisory guidelines or authorization in place. This means that the dental assistant must work only within the parameters set by direct supervision or, in some circumstances, indirect supervision, where some level of oversight is necessary.

Thus, the correct answer highlights the distinction in the levels of supervision, clarifying that with no supervision, a dental assistant cannot perform procedures at all.