Md. Code, Health Occupations § 4–206.1

(a) Subject to the requirements of subsections (b) and (c) of this section, a dental hygienist may administer local anesthesia by infiltration to facilitate the practice of dental hygiene by a dental hygienist or the practice of dentistry by a dentist, but not as a medical specialty, provided the administration of local anesthesia is under the supervision of a dentist who:

(1) Is physically present on the premises; and

(2) Prescribes the administration of local anesthesia by the dental hygienist.

(b) Before a dental hygienist may administer local anesthesia under subsection (a) of this section, the dental hygienist shall successfully complete the following:

(1) Any educational requirements established by the Board; and

(2) A written and clinical examination as required by the Board.

(c) A dental hygienist shall obtain the educational requirements established by the Board under subsection (b)(1) of this section from an accredited dental hygiene program.