Back to Arizona

HB2326 • 2026

oral preventive assistants; qualifications

HB2326 - oral preventive assistants; qualifications

Healthcare
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Laurin Hendrix, Warren Petersen
Last action
2026-01-21
Official status
House second read
Effective date
Not listed

Plain English Breakdown

The official bill text contains contradictory hour requirements (listing both 120 and 30 hours) which makes it unclear what the final training standard is.

HB2326: New Rules for Oral Preventive Assistants

This bill sets new rules in Arizona about who can become an oral preventive assistant, what training they need, and the specific tasks they are allowed to do.

What This Bill Does

  • Requires dental assistants to finish a state board-approved course with at least thirty hours of classroom work or ninety hours of didactic instruction before becoming an oral preventive assistant.
  • Sets new requirements for applicants, including current CPR certification and approved certificates for coronal polishing and taking X-rays.
  • Limits the tasks these assistants can do to removing plaque, calculus, and stains only on patients who are periodontally healthy or have mild gingivitis after a dentist checks them first.
  • Bans oral preventive assistants from using air polishing tools or treating patients with gum disease, medical issues, or those under sedation.
  • Requires assistants to tell patients they are not licensed providers and post their training certificate where the work happens.
  • Sets supervision limits so one dentist can watch up to three assistants at once while a dental hygienist can only supervise one assistant.

Who It Names or Affects

  • Dental assistants who want to become oral preventive assistants in Arizona
  • Oral preventive assistants currently working or seeking work in the state
  • Dentists and dental hygienists who supervise these assistants

Terms To Know

Coronal polishing
A procedure to clean stains from the visible part of a tooth.
Radiography
The process of taking X-ray images, such as dental X-rays.
Periodontally healthy
Having gums and supporting structures around the teeth that are free from disease.

Limits and Unknowns

  • The bill text does not state when these new rules will officially start because no effective date is listed.
  • The official source material contains conflicting numbers for training hours, listing both 'one hundred twenty' and 'thirty' hours alongside other requirements.

Bill History

  1. 2026-01-21 House

    House second read

  2. 2026-01-20 House

    House Rules: None

  3. 2026-01-20 House

    House Health & Human Services: None

  4. 2026-01-20 House

    House first read

Official Summary Text

HB2326 - oral preventive assistants; qualifications

Current Bill Text

Read the full stored bill text
HB2326 - 572R - I Ver

REFERENCE TITLE:
oral preventive assistants; qualifications

State of Arizona

House of Representatives

Fifty-seventh Legislature

Second Regular Session

2026

HB 2326

Introduced by

Representative
Hendrix: Senator Petersen

AN
ACT

Amending section 32-1291.02,
Arizona Revised Statutes; relating to the state board of dental examiners.

(TEXT OF BILL BEGINS ON NEXT PAGE)

Be it enacted by the Legislature of the State of Arizona:

Section 1. Section 32-1291.02, Arizona Revised
Statutes, is amended to read:

START_STATUTE
32-1291.02.

Oral preventive assistants; qualifications; scope of practice;
supervision; definition

A. In order to practice as an oral preventive
assistant, a dental assistant shall complete a
board-approved
state board of dental examiners-approved
oral preventive
assistant training course that includes at least
one hundred
twenty
thirty
hours of
didactic and

clinical instruction with patients and
ninety hours of didactic
instruction
that is provided by a qualifying institution.� Before taking
an oral preventive assistant training course, a dental assistant must meet all
of the following:

1. Hold a current certification in cardiopulmonary
resuscitation.

2. Hold a
board-approved

state board of dental examiners-approved
certification
for both coronal polishing and radiography.

3.
Either
any of
the following
:

(a) Hold a current national board certification in
dental assisting.

(b) Have successfully completed a dental assisting
educational program accredited by a state or national organization that
accredits dental programs.

(
c
) Have
successfully completed a dental assisting educational program offered by a
licensed private postsecondary educational institute in this state.

B. The scope of practice for an oral preventive
assistant is limited to removing plaque, calculus and stains, with scalers or
sonic or ultrasonic scaling devices, on patients who have first received a
periodontal evaluation by a dentist or dental hygienist. An oral
preventive assistant may practice only on periodontally healthy patients or
patients with localized mild gingivitis. An oral preventive
assistant may not use any air polishing technology or device or practice on
patients who have been treated for periodontal disease, have generalized
recession, are medically compromised or are under sedation.

C. An oral preventive assistant who provides coronal
calculus removal services pursuant to this section shall both:

1. Inform each patient and document in the patient's
clinical record that the patient's care was not provided by a licensed dental
provider.

2. Prominently post the oral preventive assistant's
certificate of completion of an approved course of instruction at the location
where the coronal calculus removal services are performed.

D. An oral preventive assistant may practice in this
state only under the direct supervision of a dentist or dental hygienist.� A
dentist may supervise not more than three oral preventive assistants at the
same time.� A dental hygienist may supervise not more than one oral preventive
assistant at any time.� A dentist or dental hygienist who allows an oral
preventive assistant to perform coronal calculus removal services in violation
of this section commits an act of unprofessional conduct.

E. For the purposes of this section,
"qualifying institution" means
either of the
following:

1.
An institution of higher
education, including a community college, that provides a dental or dental
hygiene program that is accredited by the commission on dental accreditation,
or its successor.

2. An institution that is licensed by
the state board of postsecondary education, that has been in operation for at
least five years and that offers a dental assisting program that includes live
patient clinical training under the supervision of a licensed dentist.

END_STATUTE