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United States · Certification exam

Free DANB practice test

This free DANB practice test has 20 questions we wrote for the three Certified Dental Assistant (CDA) exams from the Dental Assisting National Board (DANB): Radiation Health and Safety (RHS), Infection Control (ICE) and General Chairside Assisting (GC). Each has one best answer and a short explanation. The real exams are adaptive, so the questions you get there depend on how you’re doing; use this set to check what you know.

  • 20Practice questions on this page
  • 15Right answers for our 75% target
  • 400Scaled score to pass each DANB exam
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Updated October 2026 · Written from official sources, listed at the bottom of this page

Question 1 of 20

Overlapped proximal contacts on a bitewing image are caused by incorrect:

20 practice questions in the style of the exam.

How to use this free DANB practice test

Questions 1 to 6 are RHS, 7 to 12 are ICE and 13 to 20 are GC, split roughly the way DANB’s outlines weight the content. Aim for 15 right, which is 75%. That’s our own target: DANB reports a scaled score for each exam, and 400 is a pass.

After each answer you can ask the tutor to explain it another way, and the questions you miss come back at the end. If one exam’s questions go badly, its page has the outline and what each domain covers.

DANB RHS exam →DANB ICE exam →DANB General Chairside exam →

Where can you get another free DANB practice test?

DANB’s prepare page doesn’t list a free practice test of its own. It does offer a demo exam that shows the test screens, and its study guide plans and outlines are free. The DALE Foundation, DANB’s official affiliate, sells full practice tests for each exam. Our 20 questions don’t come from DANB or DALE.

DALE practice tests and DANB’s demo →DANB study guide plans →
Sources: DANB and 1 more. Checked October 2026.

Rules and fees can change, so check the official site before your test.

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