C.R.S. § 12-220-504
12-220-504. What constitutes practicing supervised dental hygiene
12-220-504. What constitutes practicing supervised dental hygiene. (1) Unless licensed to practice dentistry, a person who performs any of the following tasks under the supervision of a licensed dentist is deemed to be practicing supervised dental hygiene:
(a) Performing a task described in section 12-220-503 (1);
(b) Preparing study casts;
(c) Administering local anesthesia under the indirect supervision of a licensed dentist pursuant to rules of the board, including minimum education requirements and procedures for local anesthesia administration; or
(d) Placing interim therapeutic restorations pursuant to section 12-220-505.
(e) Repealed.