Dental Hygienist Requirements in Arizona: Scope of Practice & Direct Access
Dental Hygienists in Arizona are regulated by the Arizona State Board of Dental Examiners. The ADHA records 2 direct-access provisions for Arizona — Affiliated Practice Agreement (Sec. 32-1281, 32-1289); 2006 provision (Sec. 32-1289) — the rules that decide whether a dental hygienist there can work without a dentist on site; see below for what they cover.
Verify before you rely on this
At a glance
ADHA Direct Access chart
Direct access
Yes
Differ in scope — see below
Provisions
2
ADHA Practice Act chart
Permitted functions
19 of 22
Verified September 2026
Regulated by
Arizona State Board of Dental Examiners
Arizona’s Direct-Access Provisions (2)
Affiliated Practice Agreement
Dental hygienist with a written affiliated practice agreement may perform dental hygiene services in specified settings outside the private dental office.
The written agreement must be submitted to state board of dental examiners.
The affiliated practice dental hygienist shall consult with the affiliated practice dentist before initiating further treatment on patients who have not been seen by a dentist within 12 months of the initial treatment by the dental hygienist.
Provider services: The agreement must outline practice settings and services provided. The full dental hygiene scope is permitted with the exception of root planing, nitrous oxide and the use of local anesthesia unless under specified circumstances. After taking an accredited course and exam the dental hygienist will also be able to: place, contour and finish restorations, cement prefabricated crowns and place interim therapeutic restorations.
Requirements: Dental hygienist must have held an active license for at least 5 years and be actively engaged in dental hygiene practice for at least five hundred hours in each of the 2 years immediately preceding the affiliated practice relationship. Alternatively, dental hygienist who holds a bachelor's degree in dental hygiene, an active license for at least 3 years and is actively engaged in dental hygiene practice for at least 500 hours in each of the 2 years preceding the affiliated practice relationship, may also quality for affiliated practice. In addition, dental hygienist must successfully complete 12 hours of specified continuing education that hold a current certificate in basic cardiopulmonary resuscitation.
2006 provision
Dental hygienist employed by or working under contract or as a volunteer for a public health agency or institution or a public or private school authority before an examination by a dentist may screen patients and apply topical fluoride without entering into an affiliated practice relationship pursuant to this section.
What a Dental Hygienist Can Do in Arizona: Permitted Functions & Supervision Levels
Arizona's ADHA Practice Act row puts most day-to-day hygiene work at general supervision, where a dentist authorizes the service in advance but does not need to be present.
Oral prophylaxis, x-rays, scaling and root planing, soft tissue curettage, study cast impressions, placing periodontal dressings, dental hygiene diagnosis, treatment planning, dental hygiene assessment, and Botox are all listed at general supervision, ten of the 22 functions.
A smaller group needs the dentist physically present: administering nitrous oxide, removing periodontal dressings, and placing and removing sutures are listed at direct supervision.
Local anesthesia and the use of lasers carry two levels, direct supervision in one setting and general supervision in the other.
Topical anesthesia, fluoride, and pit/fissure sealants also carry two levels, general supervision in one setting and direct access in the other.
Prescriptive authority, vaccines, and dermal fillers are not listed on the chart for Arizona.
- Ten of the 22 functions, including oral prophylaxis, scaling and root planing, and dental hygiene diagnosis, are listed at general supervision (G) for Arizona, the most common level on the chart.
- Administering nitrous oxide, removing periodontal dressings, and placing or removing sutures are the four functions listed at direct supervision (D), meaning the dentist must be present.
- Local anesthesia is listed at two levels for Arizona (D/G), direct supervision in one setting and general supervision in the other, rather than a single level.
- Topical anesthesia, fluoride, and pit/fissure sealants are each listed at two levels (G/A), general supervision in one setting and direct access in the other.
- Prescriptive authority, vaccines, and dermal fillers carry no supervision level for Arizona on the chart, which ADHA records as not listed, a narrower statement than a ban.
- G
- General supervision: dentist needs to authorize prior to services, but need not be present
- D
- Direct supervision: dentist needs to be present
- A
- Direct access: hygienists can provide services as s/he determines appropriate without specific authorization
Read the chart the way ADHA means it
Source: ADHA Dental Hygiene Practice Act Overview: Permitted Functions and Supervision Levels by State (8.24.26 update). This document is intended for informational purposes only and does not constitute a legal opinion regarding dental practice in any state. To verify any information, please contact your state's dental board.
Local Anesthesia by Dental Hygienists in Arizona
Arizona's Local Anesthesia chart lists general supervision, authorized by statute in 1976, covering both block and infiltration injections.
It requires education from an accredited program, a WREB exam, and a course of 36 hours covering nine types of injections.
The Practice Act row lists local anesthesia differently, at two levels (D/G) rather than general supervision alone, since the two charts don't always agree.
Confirm the current course and permit rules with the Arizona State Board of Dental Examiners.
- State & Year Implemented
- 1976
- Supervision Required
- General
- Block and/or Infiltration
- Both
- Education Required
- Accredited
- Exam Required
- Yes – WREB
- Authorized by Statute or Rule
- Statute
- Legal Requirements for Local Anesthesia Courses
- 36 hrs; 9 types of injections
Source: ADHA Local Anesthesia Administration by Dental Hygienists – State Chart (Revised December 2025). This document is intended for informational purposes only and does not constitute a legal opinion regarding dental practice in any state. To verify any information, please contact your state's dental board.
Silver Diamine Fluoride by Dental Hygienists in Arizona
Arizona's ADHA silver diamine fluoride entry does not name SDF directly.
It cites Article 4 and quotes a provision letting a dental hygienist apply preventative and therapeutic agents under the general supervision of a licensed dentist, the category ADHA places SDF under.
ADHA's supervision line for Arizona is General.
A second quoted provision covers a procedure not specifically authorized by A.R.S.
Section 32-1281: it requires the supervising dentist to recommend or prescribe the procedure, requires the hygienist to have received instruction, training, or education to perform it safely, and requires the procedure to be performed under general supervision.
The entry lists no references beyond these two provisions.
A dental hygienist may apply preventative and therapeutic agents under the general supervision of a licensed dentist.
A dental hygienist may perform a procedure not specifically authorized by A.R.S. § 32-1281 when all of the following conditions are satisfied: 1. The procedure is recommended or prescribed by the supervising dentist; 2. The hygienist has received instruction, training, or education to perform the procedure in a safe manner; and 3. The procedure is performed under the general supervision of a licensed dentist.
Source: ADHA State Specific Information on Silver Diamine Fluoride (Revised September 2025). This document is intended for informational purposes only and does not constitute a legal opinion regarding dental practice in any state. To verify any information, please contact your state's dental board.
What Direct Access Does — and Doesn’t — Cover
Direct access is one dimension of scope, not scope itself. The ADHA’s direct-access chart records whether a dental hygienist can initiate treatment and treat a patient without a dentist present — the function-by-function supervision levels and the local anesthesia rules above come from two separate ADHA charts, and the three do not always line up neatly.
Don’t generalize from a direct-access provision to any other part of scope, and confirm specifics with the Arizona State Board of Dental Examiners.
Frequently Asked Questions
Does a dentist have to supervise a dental hygienist in Arizona?
It depends on which provision applies.
Under the Affiliated Practice Agreement (Sec. 32-1281, 32-1289), a hygienist may work in specified settings outside a private dental office, but only under a written agreement submitted to the state board, with minimum license and clinical-hours thresholds, and the agreement's scope excludes root planing, nitrous oxide, and local anesthesia unless specified circumstances allow it.
Under the separate 2006 provision (Sec. 32-1289), a hygienist employed by or volunteering for a public health agency or school authority may screen patients and apply topical fluoride, without an affiliated practice agreement, before a dentist's examination — but nothing beyond that limited scope.
Neither is an unconditional "no supervision needed." Confirm current details with the Arizona State Board of Dental Examiners.
Who regulates dental hygienists in Arizona?
Dental Hygienists in Arizona are regulated by the Arizona State Board of Dental Examiners.
Scope of practice is set by state law and changes over time, so verify current rules directly with the board before relying on them.
Does a dentist need to be present for local anesthesia in Arizona?
The two ADHA charts don't fully agree.
The Local Anesthesia chart lists general supervision, meaning a dentist authorizes the service in advance but doesn't need to be present.
The Practice Act chart lists local anesthesia at two levels (D/G): direct supervision in one setting and general supervision in the other.
Because the setting changes which level applies, confirm the current requirement with the Arizona State Board of Dental Examiners before providing local anesthesia.
Which Arizona hygiene functions require a dentist to be in the room?
Four functions on the ADHA Practice Act chart carry direct supervision (D) alone for Arizona: administering nitrous oxide, removing periodontal dressings, and placing and removing sutures.
Local anesthesia and lasers also carry direct supervision in one of their two listed settings.
The chart doesn't show which cells carry ADHA's numbered footnotes, so check the Arizona State Board of Dental Examiners' rules for any added condition on these functions.
Does the Arizona chart list prescriptive authority for hygienists?
No, prescriptive authority is not listed on the ADHA Practice Act chart for Arizona, along with vaccines and dermal fillers.
Not listed means the chart doesn't show a supervision level for that function in Arizona, which is a narrower statement than a prohibition.
Anyone considering these services should confirm current scope with the Arizona State Board of Dental Examiners rather than relying on the chart's silence.
What does a two-level cell like G/A mean for Arizona?
Some functions on the ADHA chart, such as topical anesthesia, fluoride, and pit/fissure sealants, list two letters for Arizona instead of one.
That means the function sits at one supervision level in a private setting and a different level in a public setting, general supervision and direct access for these three.
It is not a range or an average; each setting has its own listed level.
Confirm which applies to a given practice setting with the Arizona State Board of Dental Examiners.
Does Arizona name silver diamine fluoride in its hygiene scope rules?
No. ADHA's entry for Arizona does not name SDF specifically.
It quotes a provision letting a dental hygienist apply preventative and therapeutic agents, the category ADHA places SDF under, under the general supervision of a licensed dentist.
The entry lists no separate SDF statute or board rule.
Confirm with the Arizona State Board of Dental Examiners whether SDF is treated as a preventative or therapeutic agent under current rules.
Can an Arizona hygienist apply SDF without extra training?
Not under the second provision ADHA quotes for Arizona.
It lets a hygienist perform a procedure not specifically authorized by A.R.S.
Section 32-1281 only when the supervising dentist recommends or prescribes it, the hygienist has received instruction, training, or education to perform it safely, and the procedure is performed under general supervision.
Confirm current training expectations with the Arizona State Board of Dental Examiners.
More Arizona & Dental Hygienist Resources
Sourced from the ADHA Direct Access States chart (Revised February 2025), the ADHA Dental Hygiene Practice Act Overview: Permitted Functions and Supervision Levels by State (8.24.26 update) and the ADHA Local Anesthesia Administration by Dental Hygienists – State Chart (Revised December 2025), and the ADHA State Specific Information on Silver Diamine Fluoride (Revised September 2025). Verified September 2026. This page is general information, not legal advice — confirm current rules with the Arizona State Board of Dental Examiners.