Colorado Code § 12-220-503

What constitutes practicing unsupervised dental hygiene - rules
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(1) 
Unless licensed to practice dentistry, a person is deemed to be practicing unsupervised dental
hygiene when the person, within the scope of the person's education, training, and experience:
(a) Removes deposits, accretions, and stains by scaling with hand, ultrasonic, or other
devices from all surfaces of the tooth and smooths and polishes natural and restored tooth
surfaces, including root planing;
(b) Removes granulation and degenerated tissue from the gingival wall of a periodontal
pocket;
(c) Provides preventive measures including the application of fluorides, sealants, and
other recognized topical agents for the prevention of oral disease;
(d) Gathers and assembles information including, but not limited to:
(I) Fact-finding and patient history;
(II) Preparation of study casts for the purpose of fabricating a permanent record of the
patient's present condition; as a visual aid for patient education, dental hygiene diagnosis, and
dental hygiene treatment planning; and to provide assistance during forensic examination;
(III) Extra- and intra-oral inspection;
(IV) Dental and periodontal charting; and
(V) Radiographic and X-ray survey for the purpose of assessing and diagnosing dental
hygiene-related conditions for treatment planning for dental hygiene services as described in this
section and identifying dental abnormalities for immediate referral to a dentist;
(e) Administers a topical anesthetic to a patient in the course of providing dental care;
(f) Performs dental hygiene assessment, dental hygiene diagnosis, and dental hygiene
treatment planning for dental hygiene services as described in this section and identifies dental
abnormalities for immediate referral to a dentist; or
(g) (I) Prescribes, administers, and dispenses fluoride, fluoride varnish, silver diamine
fluoride in accordance with subsection (1)(g)(IV) of this section, antimicrobial solutions for
mouth rinsing, other nonsystemic antimicrobial agents, and related emergency drugs and reversal
agents in collaboration with a licensed dentist. The board, by rule, may further define the
permissible and appropriate emergency drugs and reversal agents. An articulated plan with a
collaborating dentist for dental hygiene prescribing must describe any protocols, restrictions or
limitations, follow-up and referral mechanisms, notification and disclosure requirements, and
any other requirements established by the board by rule. Dental hygienists shall maintain clear
documentation in the patient record of the drug or agent prescribed, administered, or dispensed;
the date of the action; and the rationale for prescribing, administering, or dispensing the drug or
agent.
(II) A dental hygienist shall not prescribe, administer, or dispense the following:
(A) Drugs whose primary effect is systemic, with the exception of fluoride supplements
permitted under subsection (1)(g)(III)(A) of this section; and
(B) Dangerous drugs or controlled substances, as defined in section 18-18-102 (5).
(III) A dental hygienist may prescribe the following:
(A) Fluoride supplements as follows, all using sodium fluoride: Tablets: 0.5 mg, 1.1 mg,
or 2.2 mg; lozenges: 2.21 mg; and drops: 1.1 mL;
(B) Topical anti-caries treatments as follows, all using sodium fluoride unless otherwise
indicated: Toothpastes: 1.1% or less (or stannous fluoride 0.4%); topical gels: 1.1% or less (or
stannous fluoride 0.4%); oral rinses: 0.05%, 0.2%, 0.44%, or 0.5%; oral rinse concentrate used
in periodontal disease: 0.63% stannous fluoride; fluoride varnish: 5%; silver diamine fluoride:
38%; and prophy pastes containing approximately 1.23% sodium fluoride and used for polishing
procedures as part of professional dental prophylaxis treatment;
(C) Topical anti-infectives as follows: Chlorhexidine gluconate rinses: 0.12%;
chlorhexidine gluconate periodontal chips for subgingival insertion into a periodontal
pocket/sulcus; tetracycline impregnated fibers, inserted subgingivally into a periodontal
pocket/sulcus; doxycycline hyclate periodontal gel, inserted subgingivally into a periodontal
pocket/sulcus; and minocycline hydrochloride periodontal powder, inserted subgingivally into a
periodontal pocket/sulcus; and
(D) Related emergency drugs and reversal agents as authorized by the collaborating
dentist.
(IV) A dental hygienist may prescribe and apply silver diamine fluoride upon
completion of a postsecondary course or continuing education course developed at the
postsecondary level that satisfies the requirements established by the board and provides
instructions on the use and limitations of applying silver diamine fluoride. A dental hygienist
may complete the course described in this subsection (1)(g)(IV) through:
(A) A live and interactive course presentation;
(B) An on-demand webinar with a completion quiz component to verify participation
prior to the issuance of a certificate; or
(C) Any other format approved by the board.
(2) A dental hygienist shall state in writing and require a patient to acknowledge by
signature that any diagnosis or assessment is for the purpose of determining necessary dental
hygiene services only and that it is recommended by the American Dental Association, or any
successor organizations, that a thorough dental examination be performed by a dentist twice each
year.
(3) Unsupervised dental hygiene may be performed by licensed dental hygienists without
the supervision of a licensed dentist.
(4) (a) Notwithstanding section 12-220-104 (13) or 12-220-305 (1)(b), a dental hygienist
may be the proprietor of a place where supervised or unsupervised dental hygiene is performed
and may purchase, own, or lease equipment necessary to perform supervised or unsupervised
dental hygiene.
(b) A dental hygienist proprietor, or a professional corporation or professional limited
liability corporation of dental hygienists, in addition to providing dental hygiene services, may
enter into an agreement with one or more dentists for the lease or rental of equipment or office
space in the same physical location as the dental hygiene practice, but only if the determination
of necessary dental services provided by the dentist and professional responsibility for those
services, including but not limited to dental records, appropriate medication, and patient
payment, remain with the treating dentist. It is the responsibility of the dental hygienist to inform
the patient as to whether there is a supervisory relationship between the dentist and the dental
hygienist. An agreement under this subsection (4)(b) does not constitute employment and does
not constitute cause for discipline pursuant to section 12-220-201 (1)(h).

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