Biological RDH Certification

Requirement: IABDM membership in good standing

(Not yet a member? Join the Academy now!)

Certification in biological dental hygiene starts with taking our “Biological Dentistry 101” course online or in person and then taking a written exam.

Examination subjects include but are not limited to:

  • Mercury, mercury toxicity, and mercury-safe dentistry.
  • Root canals, cavitations, and other oral foci.
  • Biological approaches to periodontal disease.
  • Oral manifestations of systemic health problems.
  • Fluoride.
  • Therapeutic ozone.

For additional preparation for the exam, we have compiled a recommended library of videos. Click here to view the recommended list.

To complete certification, you must do one of the following:

  1. Write an article on using natural approaches in oral treatment and submit it to our education committee for review.
  2. Complete a small study and present it to our education committee, in person or via Skype.
  3. Prepare a case presentation that demonstrates how you, as a biological hygienist, think outside the box of the routine hygiene visit. This can be done in PowerPoint and will be reviewed by our education committee.

Maintaining Certification

To maintain certification, you must stay current on your dues, show proof of at least 12 hours CE per year (in biological dentistry or medicine) and attend at least one IABDM conference every 2 years.


The test fee for certification in biological dental hygiene is $350. There is an additional fee for Biological Dentistry 101: $100 for the online course, $250 for the live version.


If you plan to register for the next live course.

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