NDEB Assessment of Clinical Judgement — Information & Free Practice
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About NDEB Assessment of Clinical Judgement
NDEB Assessment of Clinical Judgement · CA
Key exam facts
- Provider
- The National Dental Examining Board of Canada (NDEB) owns and administers the ACJ; Prometric and NDEB-hosted event sites deliver the computer examination.
- Format
- Computer-based clinical diagnosis, treatment planning, decision-making and radiographic interpretation; both single-answer and multiple-answer multiple-choice questions. This four-option single-answer knowledge bank is not an exact simulation of all official response formats.
- Exam questions
- Total questions: 120–150.
- Time limit
- The Protocol effective January 19, 2026 states five hours with one scheduled break. The general ACJ webpage describes 5.5 hours with one break. The detailed current Protocol is the governing version-specific format source; a separate check-in/tutorial time or the precise break inclusion cannot be inferred.
- Passing score
- A minimum test-equated, re-scaled score of 75; this is a standardized passing score, not a raw percentage.
- Exam fee
- CAD 1,350 examination fee, effective July 1, 2025. The separate one-time Equivalency Process application fee is not included.
Topics covered
The authority publishes percentage ranges for each content area. The practice percentages below use the midpoint of each range, normalized to 100%; they are not exact percentages published by the authority. Practice question counts may differ slightly because of rounding.
Oral Medicine/Oral Pathology, Oral Surgery — Official range: 20–30% (Practice allocation: 25%)
Pharmacotherapeutics, Medically-Complex Patients, Medical Emergencies, Geriatrics, Local Anesthesia — Official range: 17–27% (Practice allocation: 22%)
Cariology/Restorative Dentistry — Official range: 13–23% (Practice allocation: 18%)
Periodontics — Official range: 10–20% (Practice allocation: 15%)
Endodontics — Official range: 5–15% (Practice allocation: 10%)
Orthodontics, Pediatric Dentistry — Official range: 5–15% (Practice allocation: 10%)
How to prepare
Work through the topics, read the explanation after each answer, and revisit the areas where you miss questions. Use the official outline and reference materials below to guide your study.
These independent practice questions are not actual exam items and do not guarantee a passing result.
Frequently asked questions
What is the exam format?
Computer-based clinical diagnosis, treatment planning, decision-making and radiographic interpretation; both single-answer and multiple-answer multiple-choice questions. This four-option single-answer knowledge bank is not an exact simulation of all official response formats.
How many questions are on the exam?
Total questions: 120–150.
How long is the exam?
The Protocol effective January 19, 2026 states five hours with one scheduled break. The general ACJ webpage describes 5.5 hours with one break. The detailed current Protocol is the governing version-specific format source; a separate check-in/tutorial time or the precise break inclusion cannot be inferred.
What is the passing score?
A minimum test-equated, re-scaled score of 75; this is a standardized passing score, not a raw percentage.
How much does the exam cost?
CAD 1,350 examination fee, effective July 1, 2025. The separate one-time Equivalency Process application fee is not included.
Official sources and references
- NDEB ACJ Protocol
p. 5, Blueprint
- KSAs for a Beginning Dental Practitioner in Canada
pp. 1–11
- NDEB ACJ Protocol
p. 1
- NDEB ACJ Protocol
p. 6, Format
- NDEB ACJ Protocol
p. 16, Passing Standard
- NDEB Assessment of Clinical Judgement
Format and Content
- NDEB Assessment of Clinical Judgement
Protocol
- NDEB Equivalency Process Fees
Examination Fees: Effective July 1, 2025
- NDEB Equivalency Process Fees
Fees, currency
Confirm current exam arrangements with the exam provider.