INBDE Board Prep · Opens after the hygiene boards
Pass the INBDE on your first try
About the INBDE
The facts that shape how you should study.
- Who makes it
- The Joint Commission on National Dental Examinations (JCNDE). Prometric gives it in the US and Canada.
- Who uses it
- Every US state and territory, for all or part of the written exam requirement for licensure.
- Length
- 500 questions over 2 days: 360 on day 1 and 140 on day 2, within 7 days of each other at the same center.
- Cases
- 200 questions are built around patient cases. The other 300 stand alone.
- What it covers
- The Domain of Dentistry: 10 Foundation Knowledge areas and 56 Clinical Content areas in 3 groups: diagnosis and treatment planning, oral health management, and practice and profession.
- Passing
- Reported as pass or fail. A scale score of 75 is the passing standard, and it isn't a percentage.
- Results
- Usually within 3 weeks.
- Retakes
- At least 60 days between attempts, no more than 4 in a year, and you must pass within 5 years or 5 attempts.
From the JCNDE's INBDE 2026 Candidate Guide and jcnde.ada.org, last checked October 2026. Read the candidate guide (PDF) (opens in a new tab) · JCNDE's INBDE page (opens in a new tab)
What INBDE Board Prep will include
A free readiness diagnostic
A timed set across the Domain of Dentistry that scores you by area and builds your plan from the weakest.
Case-based questions
200 of the exam's 500 questions sit on a patient case. Ours do too, with new cases written on request.
An AI tutor
Every choice explained. Ask a follow‑up and it answers from the same checked sources.
Plain-English mode
For internationally trained dentists: US terms, abbreviations and systems explained the first time they appear.
Flashcards that adapt
The cards you find hard come back sooner.
2 full mock exams
500 questions over 2 sittings, timed like the real exam.
Every lesson will be 5 minutes or less and work on your phone.
Trained outside the US?
The INBDE is often the first US exam an internationally trained dentist takes, usually before applying to an advanced standing program.
- Plain‑English mode explains US terms, drug names, abbreviations and insurance and practice rules the first time they appear.
- Graduates of programs that aren't CODA‑accredited apply with a certification of eligibility signed by their school's dean or registrar. The candidate guide explains the steps.
- Most states also want a degree from a CODA‑accredited program and a clinical exam. Our pathway finder lays out the usual order.
The usual road to a US dental license for an internationally trained dentist: the INBDE first, then an advanced standing program for a degree from a CODA-accredited program, then a clinical exam such as ADEX, then the state license. Your state board decides what it needs.
Prices
6 months of access is standard. The US Dental License Pack adds ADEX DLOSCE Prep and CRDTS Part I review, with 12 months.
Status: Opens next
INBDE Board Prep
INBDE
$249for 6 months
A free readiness diagnostic, then case‑based questions, an AI tutor, a study plan and 2 full mock exams.
Reach the readiness target, sit your exam and don't pass, and we extend your access for free.
Pay in full, or over time with Affirm or Klarna at checkout.
Status: Opens next
US Dental License Pack
INBDE, ADEX DLOSCE and CRDTS Part I
$397for 12 months
Every written and computer exam on the way to a US dental license, in 1 purchase.
- INBDE Board Prep
- ADEX DLOSCE Prep
- CRDTS Part I treatment planning review
- State law exam guide
- Clinical exam checklist
Reach the readiness target, sit your exam and don't pass, and we extend your access for free.
Pay in full, or over time with Affirm or Klarna at checkout.
Pass or we extend
If you reach the readiness target in your course, sit the exam while your access is active and don't pass, send us your official result within 30 days. We'll extend your access by the length of your plan, free, as many times as you need.
You can get a full refund within 7 days of buying if you've used less than 10% of the course. After that, the pass-or-extend promise applies instead of refunds.
How every question gets checked
Every lesson and question goes through the same 6 steps before you see it, and after.
- 1
Named sources
We start from the exam's published outline, named textbooks and other published sources.
- 2
AI first draft
AI drafts the lesson or question from those sources.
- 3
Disagreements flagged
Where sources disagree, it's flagged for the reviewer.
- 4
Licensed sign-off
A licensed dentist reviews and signs off every question before anything is published.
- 5
You can flag it
Every lesson and question will have a “Something's wrong here” button.
- 6
Re-checked each season
When an exam owner updates its outline or manual, the affected questions are reviewed again.
Enrollment opens in 2027
Get notified when enrollment opens
Leave your email and we'll write when enrollment and the free readiness diagnostics open, hygiene boards first.
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