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NBDHE General Information

Important Note Concerning Periodontics Terminology:

In 2017, the American Academy of Periodontology introduced new classifications. These new classifications will be implemented in the fall of 2020 for the NBDHE. Download the classification information below.

During the transition period, it is recommended that individuals become knowledgeable with both sets of classifications, because individual researchers, practitioners, and existing textbooks can communicate information using either set of classifications. Periodontal educators recommend that individuals refer to the 2017 World Workshop On the Classification of Periodontal and Peri-implant Diseases and Conditions available on the American Academy of Periodontology website

To report issues and incidents of fraud, including but not limited to: content compromise, sharing of test content, breaches of test integrity and or testing contract, please contact the Department of Testing Services at TestSecurity@ada.org.

  • Apply to Take the NBDHE
  • Schedule a Time to Take the Examination
  • Schedule Change Information
  • Exam Preparation Material and Helpful Information
  • Examination Item Development Guide
  • NBDHE Results Information and Audit Request
  • Test Security and Fraud Prevention