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Free NDAEB Theory Exam Exam Prep

NDAEB Theory Examination (National Dental Assisting Examining Board)

Prepare for the NDAEB Theory Exam exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

Quick Facts

19
Chapters
72
Sections
$0
Our Cost
Updated January 2026
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Can You Take the NDAEB Theory Exam Exam?

Check if you meet the basic eligibility requirements

Age
Education
Candidates must have completed dental assisting education in the mandatory NDAEB skills, normally as a graduate of a CDAC-accredited or NDAEB-registered program, or by approval of the Candidate Eligibility Assessment Committee for non-registered/out-of-country graduates.
Additional Requirements
  • •Effective January 1, 2026, candidates who did not graduate from a CDAC-accredited program must pass the Clinical Practice Evaluation (CPE) before becoming eligible for the Theory Examination; graduates of programs registered before December 31, 2025 are exempt from this NDAEB requirement until December 31, 2030.
  • •Applicants must submit proof of completed education (diploma/transcript or a Letter of Enrolment), a valid email, a digital photo and the examination fee.
Why Choose Us

Free NDAEB Theory Exam Prep Tools

100 original practice questions

Covers all seven NDAEB domains with weighting-focused coverage and explanations for every option.

Exam Topic Review

Reflects the current computer-based 200-question Theory Examination and FDI tooth notation used by the NDAEB.

Free practice

Built for extra study without reproducing official NDAEB examination items.

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What You'll Study

19 chapters covering the exam topics in this guide

NDAEB Theory Exam Exam Details

NDAEB Theory Examination (National Dental Assisting Examining Board)

Administered by National Dental Assisting Examining Board (NDAEB)

Official Source
There is no fixed percentage cutoff. The NDAEB sets passing scores using the modified Angoff standard-setting method; the passing score generally falls in the low-to-mid 60s percent range and varies with the difficulty of each test form.
Passing Score
200
Questions
4
Hours
The Theory Exam fee is $730 CAD (includes a $100 non-refundable application fee), for both initial and rewrite attempts. The fee is non-refundable after the exam whether the result is a pass or fail.
Exam Fee
Study time: Most candidates prepare over several weeks using the NDAEB Domain Description as the primary study guide together with a current dental assisting textbook such as Modern Dental Assisting (Bird and Robinson).

Exam Content Breakdown

Based on the official National Dental Assisting Examining Board (NDAEB) content outline

Patient Care Procedures40-50%

Largest domain: chairside assisting, dental materials, restorative and prosthodontic support, oral surgery, endodontics, periodontics, orthodontics, pain and anxiety control, and medical emergencies in the dental office.

Preventive Procedures15-20%

Coronal polishing, fluoride and anti-cariogenic agents, pit-and-fissure sealants, desensitizing agents, vital tooth whitening, oral hygiene instruction, plaque control and nutritional counselling related to oral health.

Clinical Support Procedures10-15%

Asepsis, infection prevention and control, instrument processing and sterilization, surface and equipment maintenance, WHMIS and occupational health and safety, hazardous waste, and ergonomics.

Patient Records10-12%

Charting using FDI notation, medical and dental histories, vital signs, radiographic records and documentation, and managing patient information.

Dental Sciences7-12%

Dental and oral anatomy, tooth morphology, histology, head and neck anatomy, microbiology, pharmacology basics and oral pathology relevant to dental assisting.

Ethical and Legal Practice as a Dental AssistantAbout 5%

CDAA Code of Ethics, legal and regulatory responsibilities, scope of practice, informed consent and confidentiality, reporting abuse and neglect, conflicts of interest, and care of patients with infectious diseases.

Practice Management Procedures5-10%

Appointment and recall management, inventory and supplies, dental insurance and billing terminology, financial and equipment records, referrals, and office policies and procedures.

What's Included

19 Chapters

Complete exam coverage

Practice Quizzes

With detailed explanations

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NDAEB Theory Exam Exam FAQ

Official National Dental Assisting Examining Board (NDAEB) Resources

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