Since when??? Please Read and answer!

Just browsing available dental positions within my state of North Carolina and came across this position announcement, my question is, since when and how can a RN direct the work of a dentist? The announcement (below) pretty much implies the nurse is the dentist's supervisor. I feel some type of way about this. Any thoughts? Dentist Salary Negotiable Location DHHS Public Health Division, 109 Exeter Street, Manteo, NC Manteo, NC Job Type Full-time Department... Since when??? Please Read and answer!
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums