(a) The responsibility for diagnosis, treatment planning, or the prescription of medications in the practice of dentistry:

1. (1) Shall remain with a licensed dentist; and
2. (2) May not be assigned or delegated to a dental assistant.

(c) The following activities are prohibited for dental assistants:

1. (1) Diagnosis and treatment planning;
2. (2) Scaling, root planing, and curettage;
3. (3) Surgical or cutting procedures on hard or soft tissue;
4. (4) Prescription, injection, inhalation, and parenteral administration of drugs (except where permitted by the Arkansas State Board of Dental Examiners);
5. (5) Placement, seating, or removal of any final or permanent restorations;
6. (6) Final placement of orthodontic brackets;
7. (7) Any procedure that contributes to or results in irreversible alteration of the oral anatomy;

8. (8) Performance of any of the following expanded duties without a permit:

   1. (A) Administration of nitrous oxide/oxygen analgesia;
   2. (B) Operation of dental radiographic equipment;
   3. (C) Coronal polishing; or
   4. (D) Monitoring of patients undergoing deep sedation or general anesthesia; and
9. (9) Those functions relegated to a dental hygienist and stated in 17 CAR § 115-1102.