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Dental Hygiene Board Exams: What to Expect

The national written exam and the clinical exam — how they fit together and how to prepare.

Board exams are the bridge between school and licensure. There are generally two pieces: a national written exam and a clinical exam. Understanding how they fit together — and starting early — takes most of the fear out of them.

The national written exam

In the United States, the written board for dental hygienists is the National Board Dental Hygiene Examination (NBDHE), administered by the Joint Commission on National Dental Examinations. It’s a comprehensive, computer-based test covering the sciences and clinical dental hygiene.

Exam formats and requirements can evolve over time, so treat any specific detail as a starting point and confirm the current structure with the official testing organization and your state board before you register.

The clinical exam

Most states also require a hands-on clinical exam that assesses your ability to perform dental hygiene procedures to standard. These are administered by regional testing agencies — you may hear names like CDCA-WREB-CITA, CRDTS, or SRTA — and which exams a state accepts varies. Some formats use live patients; others use manikin-based or alternative components. Check exactly which clinical exam your intended state of licensure accepts before you commit.

A realistic timeline

  • Register early — board seats and dates fill up, especially near graduation.
  • Build your written-exam study over your final terms, not the last two weeks.
  • Line up a qualifying patient in advance if your clinical exam requires one — this is a common bottleneck.
  • Confirm every eligibility and documentation requirement with the testing body before your deadline.

How to study

  • Use practice questions to find weak spots, then study those topics deliberately.
  • Simulate real conditions with full-length, timed practice to build stamina.
  • Review your coursework systematically, not just the topics you enjoy.
  • Rest before exam day — a clear head beats one more late-night cram.

Board pass rates for graduates of accredited programs are high. Preparation, not luck, is what gets you across — and you’ve already done the hardest part by finishing the program.