In the United States, access to dental care remains a pressing issue, with nearly 60 million Americans living in areas identified as dental health professional shortage areas (HPSAs), according to the National Center for Health Statistics. This shortage is not just a statistic; it represents real challenges for individuals seeking timely and effective dental care, particularly in underserved rural and urban communities. The American Dental Association (ADA) emphasizes that these shortages can lead to serious health consequences, exacerbating oral health disparities across the nation. In response to this growing concern, the Interstate Dental and Dental Hygienist Licensure Compact (IDDHLC) has been proposed as a vital solution. Once implemented, It aims to streamline licensure processes and enhance the mobility of dental professionals, ultimately improving access to quality care for patients everywhere.
This blog post provides an overview of the Compact, which is currently awaiting activation, and outlines how dental professionals can prepare for its implementation. It aims to empower you to leverage this innovative solution, enhancing your practice and improving patient care.
What is the Interstate Dentist and Dental Hygienist Licensure Compact and How Does it Work?
The IDDHLC is a legal agreement among participating states that allows licensed dentists and dental hygienists to practice in multiple states without needing separate licenses. Established to address the increasing demand for dental care and the challenges posed by state-specific licensure requirements, the Compact aims to streamline the licensure process and promote greater access to dental services.
Eligible dentists and dental hygienists can practice in multiple states by completing a single application within the Interstate Dental and Dental Hygienist Licensure Compact (IDDHLC). This application is processed through the Compact, streamlining the standard licensing procedure and allowing for faster issuance of state licenses with fewer burdens. However, the licenses are issued by individual states, and there is no "Compact license" or nationally recognized license. Only states and territories that pass legislation to join the Compact can take part in this expedited process.

What Are the Eligibility Requirements to Participate in the Compact?
To participate in the compact, dentists and dental hygienists must first hold a full, unrestricted license from a Compact member state, designated as their Home State. To qualify a state as a home state, at least one of the following criteria must be met:
- The home state is where the dentist or dental hygienist primarily resides, and they practice at least 25% of the time there within the last year.
- Active-duty military members or their spouses may select a home state designated by the military without the 25% practice requirement.
- The Home State is used as the primary residence for U.S. federal income tax purposes.
Additionally, maintaining the Home State license is mandatory. Dentists and dental hygienists may change their home state through a process called “redesignation” after receiving a Letter of Qualification from the Compact.
Other requirements include:
- Graduation from a dental school accredited by the Commission on Dental Accreditation (CODA).
- Successful completion of the licensure examination by the American Board of Dental Examiners (ADEX) or five years of practice following a regional licensing exam.
- Passing the National Dental Board Exam administered by the Joint Commission on National Dental Examinations.
- Holding a full and unrestricted dental license issued by their Home State's Dental Board.
- Having no felony convictions or any adjudication for offenses.
- Not being subjected to disciplinary action by a dental board, aside from issues related to fees or continuing education.
- Having no restrictions, suspensions, or revocations of drug registration by the DEA or any State Board.
- Not being under active investigation by any licensing agency or law enforcement authority.
It's important for each dentist or dental hygienist to independently verify their eligibility before applying to join the Compact.
How to Obtain a License Through the Compact
- Request a Letter of Qualification:
Once your state (home state) becomes a member of the Compact, request a letter of qualification from your home state to confirm your eligibility. - Submit Letter with Application:
Submit your letter of qualification along with your application to practice in another Compact member state. - Use the AADB Licensure Repository Portal:
Once the Compact becomes active, use the AADB Licensure Repository Portal to store and submit your documents for future applications in other member states. - Confirm Eligibility:
Verify your eligibility before applying, as application fees are non-refundable. - Comply with Additional Requirements:
After receiving a license in a new state, you may need to provide additional information requested by the issuing board, such as passing a jurisprudence exam, submitting legal work authorization, or completing an online profile. - Follow State-Specific Requests:
Failure to comply with the specific requirements of the issuing state could result in action against your license.
States Participating in the IDDHLC

With these states participating, dental professionals can benefit from the increased mobility and collaboration the Compact facilitates.
Benefits of the IDDHLC
- Enhanced Mobility: The Compact allows dental professionals to practice across state lines, significantly reducing barriers to practice. This flexibility is especially beneficial for those seeking opportunities in underserved areas.
- Unified Standards: States participating in the Compact adhere to standardized licensure requirements, ensuring that all licensed professionals meet consistent educational and ethical standards.
- Telehealth Expansion: The IDDHLC supports the delivery of dental services through telehealth, which is particularly advantageous in rural areas where access to care may be limited.
- Improved Patient Access: By allowing dentists and hygienists to practice in multiple states, the Compact helps improve patient access to dental care, particularly in regions facing workforce shortages.
Future Prospects
As more states consider joining the IDDHLC, the potential for enhanced mobility and collaboration among dental professionals continues to grow. The Compact not only addresses immediate workforce needs but also paves the way for innovative practice models, including telehealth and collaborative care.
Conclusion
The Interstate Dentist and Dental Hygienist Licensure Compact represents a transformative step toward addressing the pressing dental care access challenges faced by millions of Americans. By streamlining the licensure process and enhancing the mobility of dental professionals, the Compact has the potential to bridge the gaps in care, especially in underserved communities. As dental professionals prepare for its implementation, they stand on the cusp of a new era that promotes collaboration, telehealth expansion, and improved patient outcomes.
As we await the activation of the Compact, you must stay informed, verify your eligibility, and actively engage with the resources provided. The future of dental practice is bright, with the potential for innovative models and enhanced patient care on the horizon.
Additional Resources
Dentist and Dental Licensure Compact
American Association of Dental Boards
The Council of State Governments
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