Sec 32-1231. Persons not required to be licensed

This chapter does not prohibit:

1. A dentist or dental hygienist who is officially employed in the service of the United States from practicing dentistry in the dentist's or dental hygienist's official capacity, within the scope of that person's authority, on persons enlisted in, directly connected with or under the immediate control of some branch of service of the United States.

2. An intern or student of dentistry or dental hygiene from operating in the clinical departments or laboratories of a recognized dental school, dental hygiene school or hospital under supervision of a dentist.

3. An unlicensed person from performing for a licensed dentist merely mechanical work on inert matter not within the oral cavity in the construction, making, alteration or repairing of any artificial dental substitute or any dental restorative or corrective appliance, if the casts or impressions for that work have been furnished by a licensed dentist and the work is directly supervised by the dentist for whom done or under a written authorization signed by the dentist, but the burden of proving that written authorization or direct supervision is on the person charged with having violated this provision.

4. A clinician not licensed in this state from giving demonstrations, before bona fide dental societies, study clubs and groups of professional students, that are free to the persons on whom made.

5. The state director of dental public health from performing the director's administrative duties as prescribed by law.

6. A dentist or dental hygienist to whom a restricted permit has been issued from practicing dentistry or dental hygiene in this state as provided in sections 32-1237 and 32-1292.

7. A dentist or dental hygienist who is not practicing on the public at large from practicing in a recognized dental school or a recognized dental hygiene school.