Practise Certified Dental Assistant (CDA) with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.

Exam outline and official sources

Dental Assisting National Board, Inc. (DANB) · Verified against DANB's current CDA examination page on 2026-10-13, Asia/Hong_Kong. CDA comprises General Chairside Assisting (GC), Radiation Health and Safety (RHS), and Infection Control (ICE). Currently linked outlines: GC effective 2022-07-01; RHS and ICE effective 2025-03-12. The 2026 CDA Application Packet is updated 2026-05-13. The workbook label matches the official examination; the assigned slug is preserved.

This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.

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Certified Dental Assistant (CDA)

Start with 20 free questions, then review the explanations and any topics you missed.

20 free questions0 premium in this bankIndependent practice materials
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During the health-history update, a patient reports persistent dry mouth that began after starting a prescription medicine. What should the assistant do first?

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