The issue of dental technicians scaling and polishing teeth has been addressed by the military long ago.  I would estimate that such technicians, well-trained and supevised,  safely and effectivey provided preventive dental services to include scaling and polishing of teeth to approximately 90% of active duty personnel.  Surely there is a comparable patient population that would be well-served in the private practice environment.  The training model is already established.

I would encourage the Board to favorably consider this and other expanded duties.  Specifically, there is a role in oral and maxillofacial surgery for dental assistants trained in venipuncture and monitoring of sedation and anesthesia.  The key to success in expanded duties is training and supervision.