NDEB ACJ
Assessment of Clinical Judgement (ACJ®)
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The Assessment of Clinical Judgement (ACJ®) is one of the examinations in the NDEB Equivalency Process, the route to certification for dentists who graduated from a dental degree program that is not recognized by the Commission on Dental Accreditation of Canada (CDAC). Candidates who completed a degree from a university authorized by that country's government to award such degrees, but whose program is not CDAC-recognized, follow the Equivalency Process. According to the NDEB, that process begins with application and credential verification, which takes approximately 10 weeks if everything is submitted correctly the first time, and then involves three examinations to complete; the ACJ is one of those three, alongside the Assessment of Fundamental Knowledge (AFK®) and the NDECC®. The ACJ is offered at scheduled administrations with published registration windows. For example, a Canada administration is listed for 9 November, 2026, with a registration deadline of 07 October, 2026 at 21:00 ET and registration shown as closed, while a United States/Canada administration is listed for 4 May, 2027, with registration opening 08 December, 2026 at 10:00 ET and closing 05 April, 2027 at 21:00 ET. Preparation should be built around clinical judgement - applying knowledge to patient scenarios - and around the NDEB's own published exam resources, dates, withdrawal, results, appeals, and test accommodation pages. The NDEB states it has no residency requirements for participation in its examinations.
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About NDEB ACJ preparation
Who needs to take the ACJ?
It sits within the Equivalency Process, which is for dentists who hold a degree from a university authorized by that country's government to award dental degrees, but whose dental program is not recognized by the Commission on Dental Accreditation of Canada. Graduates of CDAC-recognized programs follow the separate Certification Process instead.
How many examinations are in the Equivalency Process?
The NDEB states that after the application and credential verification step there are three examinations to complete. The ACJ is one of them; the AFK and NDECC are the others listed under the Equivalency Process. Check the NDEB's Equivalency Process pages for the current sequence and requirements.
How long does the process take before I can sit an exam?
The NDEB says the first step, application and credential verification, takes approximately 10 weeks if everything is submitted correctly the first time. After that, timing depends on when you can register for an examination and how many attempts you need to pass, so there is no fixed total duration.
When is the next ACJ administration and when does registration close?
The NDEB lists an ACJ for Canada on 9 November, 2026, with a registration deadline of 07 October, 2026 at 21:00 ET; that posting shows registration closed. A United States/Canada ACJ is listed for 4 May, 2027, with registration opening 08 December, 2026 at 10:00 ET and closing 05 April, 2027 at 21:00 ET.
How do I register, and what happens if I miss the deadline?
Registration runs only within the published window and closes at a stated Eastern Time deadline. The 4 May, 2027 administration closes 05 April, 2027 at 21:00 ET, so plan well ahead. The NDEB also publishes pages on withdrawing from an examination and on changes to the exam registration process; consult those for current rules.
Does the NDEB require me to live in Canada to take its exams?
No. The NDEB states that it does not have residency requirements for participation in NDEB examinations. Eligibility instead turns on your dental degree program and which pathway - Equivalency or Certification - applies to you. Confirm your own pathway using the NDEB's How to Become a Dentist in Canada guidance.
How should I prepare for a clinical judgement exam?
Because the ACJ assesses judgement rather than isolated recall, practise working through patient scenarios and justifying each decision rather than memorizing lists. Use the NDEB's published exam resources for the official scope, and review withdrawal, results, appeals, and test accommodation information early so administrative issues do not derail your preparation.
What if I fail an examination - can I retake it?
The NDEB notes that how long the process takes depends partly on how many attempts a person needs to pass an examination, which confirms retakes are contemplated. The specific retake rules, waiting periods, and attempt limits are not stated in the source material here, so verify them directly with the NDEB before planning.
Where can I get official answers about format, fees, and scoring?
Use the NDEB's own resources: the Examination Dates and Locations page, the Equivalency Process pages for the AFK, ACJ, and NDECC, plus Exam Resources, Fees, Withdraw Exam, Results, Appeals, Test Accommodations, and the general Frequently Asked Questions. This page is an independent study resource and is not affiliated with the NDEB.