A foreign-trained dentist can work as a dental hygienist in the United States, but the path is not direct. Professional titles and scopes of practice are not interchangeable across international borders. A Doctor of Dental Surgery (DDS) or Doctor of Dental Medicine (DMD) from another country does not automatically translate to a US license. Navigating the regulations requires understanding the distinct roles and the specific educational and examination mandates set by US licensing boards to meet national standards of competence.
Understanding the Difference Between Dentists and Dental Hygienists
The US regulatory system establishes a clear separation between the scope of practice for a licensed dentist (DDS/DMD) and a Registered Dental Hygienist (RDH). Dentists perform comprehensive diagnostic, surgical, and restorative procedures, including fillings, root canals, extractions, and prescribing medications. Their education involves four years of post-graduate doctoral study following a bachelor’s degree.
Dental hygienists are licensed to focus primarily on preventative oral care, such as professional teeth cleanings, scaling, root planing, and applying sealants and fluoride. The RDH role is generally limited to non-invasive procedures and patient education. In most states, dental hygienists operate under the supervision of a licensed dentist, underscoring the difference in their legal authority and clinical autonomy.
The Short Answer: Automatic Eligibility for Foreign Dentists
A foreign DDS or DMD degree does not automatically qualify an individual for Dental Hygienist (RDH) licensure in the United States. Although a foreign dentist’s education may exceed that of a typical dental hygiene program, the US licensing structure requires specific accreditation. State licensing boards mandate that applicants must have graduated from a US dental hygiene program accredited by the Commission on Dental Accreditation (CODA).
This means the foreign dental degree, by itself, is insufficient to meet the educational prerequisites for US licensure examinations. Only Florida offers a direct pathway for foreign-trained dentists to apply for a dental hygiene license by meeting specific criteria. For all other states, completing an accredited US dental hygiene education remains necessary.
Essential Requirements for Dental Hygienist Licensure
Applicants seeking Dental Hygienist licensure must meet three requirements, regardless of their prior educational background.
The first requirement is graduation from a CODA-accredited dental hygiene program, typically an Associate of Applied Science (AAS) degree taking two to three years. This ensures candidates receive standardized clinical and didactic training specific to US practice standards.
The second requirement is successfully passing the written National Board Dental Hygiene Examination (NBDHE). This comprehensive, 350-question test is administered by the Joint Commission on National Dental Examinations (JCNDE) and assesses the candidate’s understanding of biomedical sciences and dental hygiene application.
Finally, an applicant must pass a state or regional clinical board examination, such as the ADEX Dental Hygiene Examination. This demonstrates practical competency in procedures like scaling and root planing.
How Foreign Credentials Impact the Licensing Process
Foreign credentials hold significant value for a foreign-trained dentist entering the US system. The first step involves having foreign dental school transcripts evaluated by a recognized service, such as Educational Credential Evaluators (ECE) or World Education Services (WES). This service assesses the equivalency of the foreign degree to a US DDS/DMD and converts the coursework and grades into the US format.
This official evaluation is used when applying to CODA-accredited US dental hygiene programs. Many programs offer “advanced standing” or grant credit waivers for equivalent coursework, such as anatomy and physiology. This mechanism allows a foreign dentist to potentially shorten the required education time, but completing the US-accredited dental hygiene degree remains mandatory for licensure.
Step-by-Step Pathway to Licensure
The pathway for a foreign dentist to attain Registered Dental Hygienist (RDH) licensure involves several distinct steps:
- Obtain an official transcript evaluation of the foreign DDS/DMD degree from an approved agency to establish US equivalency.
- Apply to CODA-accredited US Dental Hygiene programs, preferably those offering advanced placement or credit for prior learning.
- Complete the necessary clinical and didactic coursework required by the accredited program.
- Successfully pass the written National Board Dental Hygiene Examination (NBDHE).
- Pass the required regional or state clinical board examination, such as those administered by the Commission on Dental Competency Assessments (CDCA).
- Apply to the specific state dental board for final licensure and complete any required state jurisprudence exams.
Alternative Roles for Foreign Dentists
Foreign-trained dentists can pursue alternative career options that utilize their extensive dental knowledge. Many states permit a foreign dentist to work as a Dental Assistant, often requiring only minimal state registration or certification. This role provides immediate entry into the US clinical environment and allows adaptation to local standards of patient care.
Non-clinical roles are also available in the broader dental industry. These options include administrative or managerial positions within a dental practice or clinic. A foreign dentist may also find employment in dental supply sales, technical writing for dental publications, or as a clinical research coordinator for dental product development, leveraging their expertise without requiring a US clinical license.

