In order to protect and promote the public health and welfare of the citizens of this state, the board shall prescribe by rule or regulation those acts, services, procedures, and practices which may be performed by dental hygienists, dental assistants, or other persons at the direction of and under the supervision of a licensed dentist and shall impose such requirements and restrictions, including the degree of supervision required, on the performance thereof by such dental hygienists, dental assistants, and other persons as it shall deem necessary and proper.
OCGA § 43-11-9