How to Get a US Dental Hygienist License as a Foreign-Trained Hygienist
Important: This guide provides general information for foreign-trained professionals seeking US licensure. International licensing pathways change frequently. Always verify requirements directly with the credential evaluation agency, state licensing board, and — for visa questions — a qualified immigration attorney. LicenseMap does not provide legal or immigration advice.
This guide is for internationally educated dental hygienists seeking licensure in the United States. Unlike some healthcare professions where foreign credentials can be evaluated and accepted in lieu of US education, most US states require dental hygienists to have graduated from a program accredited by the Commission on Dental Accreditation (CODA). This means many foreign-trained hygienists will need to complete a US dental hygiene program before applying for licensure.
LicenseMap tracks dental hygienist licensing requirements across 51 states. This guide walks through the most common pathway from initial credential evaluation through receiving your state license.
Pathway at a Glance
- Credential evaluation (WES or ECE) to assess your foreign dental hygiene education
- Complete a CODA-accredited dental hygiene program in the US (typically required; 2–3 years)
- Pass the National Board Dental Hygiene Examination (NBDHE)
- Pass a regional or state clinical examination
- Apply for licensure with your chosen state dental board
Step 1: Credential Evaluation
The first step is obtaining an evaluation of your foreign dental hygiene education and credentials. General credential evaluation organizations such as World Education Services (WES) and Educational Credential Evaluators (ECE) can produce a US equivalency report for your academic credentials.
Documents you will typically need:
- Official transcripts from your dental hygiene school or university (sent directly from your institution)
- Degree or diploma certificate
- License or registration verification from your home country's dental regulatory authority (if applicable)
- Copy of your passport (identity verification)
Processing times vary by organization and service level. Start the credential evaluation process early, as gathering verified documents from international institutions can be the slowest part of the process. Note that most state dental boards will still require graduation from a CODA-accredited program regardless of the credential evaluation result.
World Education Services (WES)
General credential evaluation for international degrees — accepted by most US state boards and institutions
Step 2: Complete a CODA-Accredited Dental Hygiene Program
Most US states require applicants for dental hygienist licensure to have graduated from a dental hygiene program accredited by the Commission on Dental Accreditation (CODA). Because foreign dental hygiene programs are not CODA-accredited, the majority of internationally trained hygienists must complete a US dental hygiene program to meet this requirement.
- Program length: Associate degree programs typically take 2 years; bachelor's degree programs typically take 3–4 years. Some programs offer advanced placement or degree completion options.
- CODA accreditation: CODA maintains a searchable directory of accredited dental hygiene programs. Confirm a program's accreditation status before enrolling.
- State exceptions: A small number of states may accept foreign credentials evaluated against CODA standards without requiring full US program completion. Verify directly with your target state dental board before assuming this pathway is available.
Important: The CODA program requirement is the most significant barrier for internationally trained dental hygienists. Contact the dental board in your target state before enrolling in any program to confirm current licensure requirements.
Step 3: National Board Dental Hygiene Examination (NBDHE)
The National Board Dental Hygiene Examination (NBDHE) is the national written examination for dental hygiene licensure, administered by the Joint Commission on National Dental Examinations (JCNDE). All applicants for US dental hygienist licensure must pass the NBDHE.
- Content: The NBDHE covers biomedical sciences, dental hygiene sciences, and community health and research principles
- Eligibility: Most states require graduation from or current enrollment in a CODA-accredited program to be eligible to sit for the NBDHE
- Registration: Through the JCNDE after receiving approval from your state dental board
- Testing: Administered at authorized testing centers; contact JCNDE for current testing locations and availability
LicenseMap covers dental hygienist licensing requirements across all 51 states, including exam details, fees, and continuing education requirements.
Step 4: Regional or State Clinical Examination
In addition to the NBDHE written exam, most states require applicants to pass a clinical examination that assesses hands-on dental hygiene skills. Clinical exam requirements vary significantly by state.
- Regional clinical exams: Several regional testing organizations administer clinical exams accepted by multiple states, including exams administered under the American Board of Dental Examiners (ADEX) standards
- State-administered exams: Some states administer their own clinical examinations and do not accept regional exams
- Exam content: Clinical exams typically assess periodontal assessment, patient care, and dental hygiene instrumentation skills
Check with the dental board in your target state to confirm which clinical examination they accept and whether there are any restrictions on when you may take it relative to your program completion.
Step 5: State Licensure
Once you have passed both the NBDHE and the required clinical examination, you can apply for licensure with the dental board in the state where you intend to practice. Each state has its own application process, fees, and additional requirements.
LicenseMap tracks dental hygienist licensing requirements across 51 states. Visit our state-by-state dental hygienist requirements page to find specific application details, fees, and continuing education requirements for any state.
Credential Evaluation
For internationally educated dental hygienists, credential evaluation provides a US equivalency assessment of your foreign academic credentials. While most states will still require completion of a CODA-accredited program, a credential evaluation can be useful for academic placement, immigration purposes, and verifying prior education.
World Education Services (WES)
General credential evaluation for international degrees — accepted by most US state boards and institutions
For more information on how credential evaluation works across healthcare professions, see our International Credential Evaluation Guide.
Visa & Immigration Overview
International dental hygienists pursuing US employment typically use one of the following visa categories:
- EB-3 (Skilled Worker) — An employment-based immigrant visa (green card) category available to skilled workers. This is the more common pathway for dental hygienists seeking permanent US employment. Processing times vary significantly by country of origin.
- H-1B (Specialty Worker) — A temporary work visa that is less commonly used for dental hygienists compared to some other healthcare professions. Subject to annual caps and employer sponsorship.
- TN Visa (USMCA) — Available to Canadian and Mexican nationals under the United States-Mexico-Canada Agreement. Dental hygienists may be eligible under the TN category; verify current USMCA profession lists.
Note: Immigration law is complex and changes frequently. The information above is a general overview only. Consult a qualified immigration attorney for advice specific to your eligibility, country of origin, and circumstances.
Estimated Costs
The following table provides approximate costs for the major steps in the international dental hygienist licensure pathway. Actual fees may vary. Costs do not include tuition for a CODA-accredited program, which can vary widely by institution.
| Item | Estimated Cost |
|---|---|
| Credential Evaluation (WES or ECE) | ~$200 |
| NBDHE Examination | ~$475 |
| Regional/State Clinical Examination | ~$1,000–$2,000 |
| State Licensure Application (varies by state) | Varies |
| Visa Application Filing Fees | $190–$460+ |
Costs are approximate and subject to change. These estimates do not include CODA-accredited program tuition, which can range from several thousand to tens of thousands of dollars depending on the institution and program type. Additional expenses may include document translation, courier fees for international transcripts, and immigration attorney fees.
Frequently Asked Questions
Do foreign-trained dental hygienists need to complete a US dental hygiene program?
In most states, yes. Because dental hygiene licensure in the US requires graduation from a CODA-accredited dental hygiene program, most internationally educated hygienists need to complete a US program before they can sit for the NBDHE and apply for licensure. Some states may accept evaluated foreign credentials combined with passing the required exams, but this varies — check with the specific state dental board before applying.
How long does it take for a foreign-trained dental hygienist to get licensed in the US?
The timeline depends heavily on whether you need to complete a US dental hygiene program. If a US program is required, the process can take 2-4 years including program completion. If your credentials are accepted without a US program (verify with your target state), the process may take 6-18 months from initial credential evaluation through state licensure.
What is the NBDHE?
The National Board Dental Hygiene Examination (NBDHE) is the national written examination for dental hygiene licensure in the United States, administered by the Joint Commission on National Dental Examinations (JCNDE). It tests biomedical, dental hygiene, and community health sciences. All applicants for dental hygienist licensure in the US must pass the NBDHE regardless of where they trained.
What clinical exam do I need to take as a foreign-trained dental hygienist?
In addition to the NBDHE written exam, most states require a clinical examination. Regional clinical exams are administered by organizations such as the American Board of Dental Examiners (ADEX) and are accepted in multiple states. Some states administer their own clinical exams. Check with the dental board in your target state for which clinical exam they accept.
What visa options are available for international dental hygienists?
International dental hygienists seeking US employment most commonly pursue the EB-3 (Skilled Worker) employment-based immigrant visa category. The H-1B specialty worker visa is less commonly used for dental hygienists compared to other healthcare professions. Canadian and Mexican hygienists may be eligible for the TN visa under USMCA. Consult a qualified immigration attorney for advice specific to your situation.
Related Resources
- Dental Hygienist License Requirements by State — Compare requirements, fees, and licensing details across all 51 states
- International Credential Evaluation Guide — Overview of credential evaluation for all professions
- International Licensing Guides — Guides for other healthcare professions seeking US licensure
NBDHE Exam Prep
Dental hygiene board exam study materials.
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