Dental Hygiene Programs by State

Founder, DentistryHires
Updated September 2026

Dental hygiene is a licensed oral health profession, and the standard way in is a dental hygiene program accredited by the Commission on Dental Accreditation (CODA).

Pick your state below to see every CODA-accredited program there, with institution, city, accreditation status and visit years taken straight from CODA's own directory.

Below the list: how the degree levels differ, what students study, how admission works, and what comes after graduation.

Verify with the program, CODA and your state dental board

Accreditation status, admission requirements, prerequisites and costs are set by each program and can change after CODA's directory was pulled. Licensing rules are set by each state. Confirm a program's current status with CODA and the rules for your state with your state dental board before you apply.

Where the Dental Hygiene Programs Are

At a glance

CODA-accredited, nationwide

Programs

355

With at least one program

States

50

Approval without Reporting Requirements

Fully approved

323 of 355

The states with the most CODA-accredited dental hygiene programs, counted from CODA's directory. A state's program count says nothing about any one program's quality; for licensure, what matters is each program's CODA accreditation. Each state links to its full list.

Source: CODA program directory, index dated 2026-09-09. Counts include every program row CODA lists for the discipline in each state.

Why CODA Accreditation Matters for Dental Hygiene Students

Accreditation is the first filter, not a nice-to-have.

Graduating from a CODA-accredited dental hygiene program satisfies the education requirement for licensure in every U.S. jurisdiction.

It is also the standard route to the National Board Dental Hygiene Examination (NBDHE): students become eligible when their program director certifies them, and graduates qualify with proof of graduation from a CODA-accredited program.

That is why this directory lists only CODA-accredited programs.

The status beside each program is CODA's own term. "Approval without reporting requirements" means the program achieves or exceeds the basic requirements for accreditation, and "initial accreditation" means a newer program has not yet graduated its first class.

CODA is blunt about the one status that matters most: students who enroll after a program's accreditation has been withdrawn "will not be considered graduates of a Commission accredited program" and "may be ineligible for certification/licensure examinations."

Associate, Bachelor's and Master's Degrees in Dental Hygiene

The most common route is an associate degree, typically two to three years, often through a community college.

It is the standard route to the Registered Dental Hygienist (RDH) license.

A Bachelor of Science in Dental Hygiene (BSDH) wraps the same clinical core in about four years of college coursework and leads to the same license.

The extra coursework matters mainly for paths beyond chairside care, such as teaching, public health and research.

Already licensed? Degree-completion (RDH-to-BS) programs let a working hygienist add a bachelor's without repeating the clinical curriculum, and because the clinical hours are already done, they are the one part of dental hygiene education that often runs mostly online.

Some universities also offer graduate degrees such as the Master of Science in Dental Hygiene (MSDH).

Offerings vary by school, and graduate study matters mainly for teaching and leadership: CODA's standards require a dental hygiene program's administrator to hold a master's or higher degree, and anyone teaching a didactic course to hold at least a bachelor's.

For which degree to start with, see associate vs. bachelor's in dental hygiene.

CODA also accredits dental therapy programs, a separate allied dental education program with its own directory.

What Dental Hygiene Programs Teach

Every accredited program combines classroom science with supervised clinical training: students treat real patients in the program's own clinic under faculty supervision, and some programs add rotations at off-campus sites such as community clinics.

Ask each program how its clinic hours are scheduled, because they run on the clinic's timetable, not yours.

For the coursework, the NBDHE's content outline is a useful guide, since a program director has to certify students as prepared in every exam discipline.

It covers three areas.

The scientific basis for dental hygiene practice spans anatomic sciences, physiology, biochemistry and nutrition, microbiology and immunology, pathology and pharmacology.

The other two are the provision of clinical dental hygiene services, and community health and research principles, the public side of oral health care.

For how long all of this takes, and why "two years" often becomes three, read how long dental hygiene school takes.

Admission Requirements and How to Apply

Admission requirements are set by each school, not by a national standard.

Most dental hygiene programs expect a high-school diploma or GED plus college-level prerequisite coursework, commonly biology, chemistry, anatomy and physiology, and English.

Minimum grades, how recent your science courses must be, and deadlines all vary by program.

A typical sequence:

  1. Shortlist accredited programs

    Start from your state's list above and confirm each program's current status in CODA's directory.
  2. Read each program's admissions page

    Note its prerequisite list, minimum grades, science-course recency limits, information sessions and application deadline.
  3. Finish the prerequisites

    Plan for a semester or two of college science if you're starting from scratch.
  4. Apply, often to more than one program

    Clinical seats are limited, and at a program that admits one class a year, a missed deadline costs a full year.
  5. Check your state's licensing rules early

    If you plan to work in a different state from the one you train in, look up that state's requirements before you enroll.

After Graduation: Board Exams and Your RDH License

A dental hygiene degree is an education credential, not a license.

Licensure belongs to each state.

Most jurisdictions require three things: the education (a CODA-accredited program), a written exam and a clinical exam.

The NBDHE fulfills or partially fulfills the written requirement, though each jurisdiction decides how it accepts the result.

The clinical requirement is usually met through a regional testing agency such as ADEX/CDCA-WREB or CRDTS, or the JCNDE's DHLOSCE where a board accepts it.

See the clinical board exams guide for how those work.

Most states add a jurisprudence exam on state dental law before issuing the RDH license.

Our step-by-step guide to becoming a dental hygienist walks the whole sequence, and dental hygienist requirements by state covers each state's own rules.

Official Resources for Dental Hygiene Students

Three sources settle most questions. CODA's program search is the live record of which programs are accredited.

The American Dental Hygienists' Association (ADHA) is the profession's national association.

Your state's board of dentistry or dental examiners sets the license you will actually practice under.

For the job itself, from daily duties to where hygienists work, start with our dental hygienist career guide.

Pay is covered in the dental hygienist salary guide, and when you're licensed you can browse dental hygienist jobs at dental practices near you.

Dental Hygienist Programs in Dallas

Looking for a dental hygienist program in Dallas?

Every CODA-accredited dental hygiene program in Texas, including those in surrounding Dallas–Fort Worth cities, is on the Texas dental hygiene programs page with its accreditation status, address and website.

These are the ones CODA's directory lists in the city of Dallas itself:

  • Concorde Career College- Dallas · Dallas, TX
  • Dallas College · Dallas, TX
  • South College-Dallas · Dallas, TX
  • Texas A&M University College of Dentistry · Dallas, TX

Frequently Asked Questions

How do I become a dental hygienist?

Graduate from a CODA-accredited dental hygiene program, most often an associate degree.

Then pass the National Board Dental Hygiene Examination and a clinical board exam, and meet your state's licensing requirements, which usually include a jurisprudence exam.

The state then issues your Registered Dental Hygienist (RDH) license.

That is the standard route in nearly every state; a state can set its own education pathway, so confirm yours with your state dental board.

Our step-by-step guide to becoming a dental hygienist covers each stage and its timing.

How long does dental hygiene school take?

An associate degree program typically takes two to three years of full-time study, and a bachelor's about four.

Most programs also require college-level prerequisites before you can apply, so a realistic total from a standing start is often closer to three years for the associate route.

Each program sets its own length, so confirm it with the school.

What exams are required for dental hygiene licensure?

Most states require the National Board Dental Hygiene Examination (NBDHE), a written exam run by the Joint Commission on National Dental Examinations, plus a hands-on clinical exam, usually from a regional agency such as ADEX/CDCA-WREB or CRDTS.

Many add a jurisprudence exam on state law.

Which exams a state accepts is its own decision, so check with the board where you plan to work.

Do dental hygienists need to graduate from an accredited program?

It is the standard route.

Graduating from a CODA-accredited program satisfies the education requirement for licensure in every U.S. jurisdiction, and it is the usual path to NBDHE eligibility.

Education requirements are still set by each state, so confirm yours with your state dental board.

Graduates of a non-accredited U.S. or Canadian program can sit the NBDHE only if their program is shown to be equivalent, which requires a credential evaluation.

Choosing an accredited program avoids that problem entirely.

What are the prerequisites for dental hygiene programs?

Each program sets its own, but most expect a high-school diploma or GED plus college-level courses, commonly biology, chemistry, anatomy and physiology, and English.

Programs differ on minimum grades, how recently science courses must have been taken, and application deadlines.

Read the admissions page of every program you are considering before you register for a class.

Can you study dental hygiene online?

Not the entry-level degree.

Supervised patient care is a core part of every accredited program and has to happen in person, although some classroom courses may be offered online.

Degree-completion programs for licensed hygienists adding a bachelor's are the part of dental hygiene education that often runs mostly online.

Our guide to online dental hygiene programs covers what is and isn't flexible.

More Dental Hygienist Resources

This page is general information, not legal or medical advice. Program details, accreditation status and licensing requirements change. Confirm them with the program, with CODA and with your state dental board.