DANB Certified Dental Assistant (CDA) Exam

The DANB CDA exam certifies dental assistants across three component exams: General Chairside Assisting, Infection Control, and Radiation Health and Safety. It is the most widely recognized dental assisting credential in the United States.

245
Questions
195 min
Time Limit
70%
To Pass
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Exam Rules

  • You can skip questions and return to them later
  • Flag questions for review before submitting
  • No feedback shown until you submit the entire exam
  • Unanswered questions count as wrong — answer everything
  • 10 pretest questions are mixed in and don't affect your score
  • Timer auto-submits when time runs out
  • Your progress is auto-saved every 30 seconds