# Dentovio Dental Assisting Certification Exam Prep Dentovio Dental Assisting Certification Exam Prep connects focused lessons, original practice questions and answer explanations so you can decide what to study next. ## Make your next study session count Read a lesson, try questions on that topic, then review the reasoning behind each answer. Return to the lesson when an explanation reveals a gap. ## Topics you can study Prepare for the DANB® CDA® exam with independent study materials. - General chairside assisting and dental materials - Radiation health and safety - Infection control The CDA® exam combines General Chairside Assisting (GC), Radiation Health and Safety (RHS®), and Infection Control (ICE®).[^A1][^A2] GC includes patient evaluation, patient management and administration, chairside dentistry, and dental materials.[^A3] ## Choose the study step you need - **Read:** use focused lessons and review sheets to revisit a topic. - **Apply:** answer original questions and compare the explanations for every option. - **Return:** save your answers, flag questions and resume saved practice. ## One course, a connected study routine Price: $129.00 Access: Access to the study materials is provided for 180 days from the date of purchase. - 49 study modules - 556 original practice questions - 72 learning figures - Lessons, review sheets and explanations for every answer option The exam board lists a US $450 CDA® exam fee for traditional candidates in its 2026 application packet. That is a separate examination fee paid to the Dental Assisting National Board, Inc.[^GC-CDA-APPLICATION-2026] [See the current official application packet](https://danbsfprodassets.azureedge.net/assets/docs/default-source/national-application-packets/cda-application-packet.pdf). ## Know the source and the scope Follow the source links alongside question explanations. Use [official exam information](https://www.danb.org/exams/exam/cda-exam) for applications, requirements and examination policies. DANB® is a registered service and certification mark; CDA® is a registered certification mark; and RHS® and ICE® are registered service marks of the Dental Assisting National Board, Inc. This course is not sponsored or endorsed by or affiliated with the Dental Assisting National Board, Inc.[^RHS-DANB-MARKS-2025] Dentovio provides independent exam preparation. Our questions are original practice, not official or recalled examination questions. ## Frequently asked questions ### What is included? You can read lessons, use review sheets and work through original practice questions. Each answer explanation includes the rationale, reasons the other options do not fit, and source references. The course inventory shown above reflects the material available in this product. Choose a topic to study, then use your practice review to decide what to revisit. ### Can I return to my work? Yes. Choose an answer and use Save answer to store it. You can flag a question and resume a saved practice session. The interface confirms successful saves and shows an error if a save fails. A choice you have selected but have not saved is still a draft. Keep the save confirmation in view before leaving. ### Is this an official exam or a certification? This is independent educational preparation. Purchasing or completing this course does not register you for an exam-board examination, establish examination eligibility or award exam-board certification. Check the exam board’s official information for the requirements that apply to you. Practice results describe your work on these questions; they do not predict an official score or guarantee a passing result. ### How do price and access work? The price and access terms displayed above come from the current course offer. Read those terms and the linked checkout information before purchasing. Examination registration with the exam board and its fees are separate. Course preparation does not replace your responsibility to check the exam board’s current examination requirements, application information and policies for the examination you intend to take. ## Start with one question Try the question on this page, read its explanation, then choose your next study step. ## Footnotes [^A3]: DANB, GC Exam Outline and References, effective July 1, 2022, printed pages 1–6; CDA component identity also appears on the official CDA exam page. https://danbsfprodassets.azureedge.net/assets/docs/default-source/exam-outlines/gc-exam-outline.pdf [^A1]: DANB, RHS Exam Outline and References, effective March 12, 2025, printed pages 1–6. https://danbsfprodassets.azureedge.net/assets/docs/default-source/exam-outlines/rhs-exam-outline.pdf [^A2]: DANB, ICE Exam Outline and References, effective March 12, 2025, printed pages 1–4. https://danbsfprodassets.azureedge.net/assets/docs/default-source/exam-outlines/ice-exam-outline.pdf [^GC-CDA-APPLICATION-2026]: Dental Assisting National Board, Inc., 2026 application packet, printed/physical page 11, CDA column; traditional-candidate fee and US-dollar payment instruction. https://danbsfprodassets.azureedge.net/assets/docs/default-source/national-application-packets/cda-application-packet.pdf [^RHS-DANB-MARKS-2025]: Dental Assisting National Board, Inc., Usage Guidelines for DANB Marks, footer November 10, 2025, page 1 mark identities, page 2 §§7–8, and page 3 §§9–10 and 12–17. https://danbsfprodassets.azureedge.net/assets/docs/default-source/danb-policy-documents/usage-guidelines-for-danb-marks.pdf?sfvrsn=ac485984_5 Last updated: 2026-10-30 ## Try one question A sterilizer's display reports the expected time and temperature. Which additional check uses resistant microorganisms to assess the sterilization process? A. A biological indicator (spore test) B. A timer reading recorded in the cycle log C. A color change on external process tape D. The printed expiration date on a package Best answer: A. Biological indicators use resistant spores to assess the sterilization process directly. Time and temperature readings are mechanical checks; chemical tape changes do not directly measure microbial killing. B: A cycle-log timer is mechanical monitoring. It records physical conditions rather than directly testing resistant microorganisms. C: External process tape is a chemical indicator. Its color change is not the biological test described. D: A package expiration date is labeling information, not a test of microorganism inactivation during the cycle. An acceptable mechanical reading or a changed chemical indicator is different from a biological-indicator result; none is presented as a lone guarantee for every item. CDC, Guidelines for Infection Control in Dental Health-Care Settings—2003, Sterilization Monitoring narrative, especially Biological Indicators.[B3] CDC, Guidelines for Infection Control in Dental Health-Care Settings—2003, MMWR 52(RR-17), Sterilization Monitoring narrative, Mechanical, Chemical and Biological Indicators. https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5217a1.htm Current corroboration: CDC, Best Practices for Sterilization Monitoring in Dental Settings (May 15, 2024), Methods. https://www.cdc.gov/dental-infection-control/hcp/dental-ipc-faqs/sterilization-monitoring.html [^B3]: CDC, Guidelines for Infection Control in Dental Health-Care Settings—2003, MMWR 52(RR-17), Sterilization Monitoring narrative, Mechanical, Chemical and Biological Indicators. https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5217a1.htm Current corroboration: CDC, Best Practices for Sterilization Monitoring in Dental Settings (May 15, 2024), Methods. https://www.cdc.gov/dental-infection-control/hcp/dental-ipc-faqs/sterilization-monitoring.html [Buy the course · $129.00](/checkout/danb-cda). 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