Under what condition may a dental assistant in Oklahoma legally use an air polisher?

In Oklahoma, the use of an air polisher by a dental assistant is not permitted. This means that regardless of supervision or training, the practice itself falls outside the legal scope for dental assistants in the state. The regulation can stem from state dental laws that outline what duties can be performed by dental assistants and require that certain procedures, such as coronal polishing and the use of specific equipment like air polishers, be performed only by licensed dentists or hygienists.

Thus, while training, certification, and supervision might be important factors in dental practice, they do not change the fundamental legality of the procedure. In this context, the option stating that it is not legal in Oklahoma reflects the current legal framework governing dental practices in the state.