234 C.M.R. 5.02
(3) The owner(s) of a dental practice where any non-owner dentist practices dentistry shall designate a dentist who holds a valid license issued pursuant to M.G.L. c. 112, § 45 to act as Dental Director. The appointment of a Dental Director shall not absolve any owner or other licensee practicing at the site from ensuring that the dental practice is established, maintained and operated in accordance with M.G.L. c. 112, §§ 43 through 53, 61 and 234 CMR and any rule, advisory or written policy adopted by the Board related to the practice of dentistry, dental hygiene, or dental assisting. A non-owner dentist includes, but is not limited to, a dentist who works full-time, part-time or on a temporary basis or as an independent contractor.
(b) The Dental Director shall, at a minimum, be responsible for implementing policies and procedures to ensure compliance with local ordinances and state and federal statutes and regulations governing the practice of dentistry in areas including, but not limited to: