Conquer the INBDE500 questions. Two days. It's an endurance test.
The INBDE Two-Day Marathon
Most candidates prepare for content. Almost nobody prepares for what it feels like to come back on Day 2.
Day 1
The 8-Hour Grind
Day 2
The Case-Based Gauntlet
All Day 2 questions are case-based - requires sustained clinical reasoning after Day 1 fatigue.
Source: 2024 JCNDE Annual Report. In 2024, the JCNDE implemented a new, more rigorous performance standard, increasing failure rates across all candidate groups.
Why Most Candidates Struggle
Content gets you to the starting line. Endurance gets you across the finish.
The Problems
Stuck With No One to Ask
You don't understand a concept. No study group. No tutor on call. You re-read the same paragraph hoping it clicks.
The Day 2 Gut Punch
After 8 hours and 360 questions, you walk out depleted—and have to come back tomorrow. Most candidates prepare for content, not for the psychological toll of Day 2.
Nobody Trains for Endurance
12+ hours of testing. Research shows performance drops by 0.9% per hour—but a 20-minute break can recover it. If you haven't practiced long sessions, you won't pace correctly.
Day 2 is ALL Case-Based
140 questions requiring sustained reading, clinical synthesis, and reasoning—when you're already depleted. If you show up exhausted, those cases will feel twice as hard.
The QuizOdontist Advantage
230+ Hours of Study Material
Deep-dive lessons spanning every INBDE content area. Each topic breaks down into a concise read, practice quiz, and flashcard deck—built for the volume this exam demands.
Agentic AI Tutor
First-of-its-kind AI that teaches with images—the way clinical reasoning should be taught. Ask follow-ups, get visual explanations, 24/7.
Custom Mock Builder
Simulate Day 1 (standalone-heavy) or Day 2 (all case-based). Set difficulty, choose subjects, build the exact practice you need for each day's unique challenge.
Endurance Analytics
See exactly when your performance dips during long sessions. Build stamina progressively with 100 → 200 → 360 question sessions. Know your limits before exam day.
500+ Patient Box Cases
Realistic case-based scenarios with clinical findings, radiographs, and multi-question patient boxes. Master the format that dominates Day 2.
Your Path to U.S. Licensure
The INBDE is your gateway to advanced standing programs at U.S. dental schools. While the pass rate for internationally trained dentists is lower than for domestic students, comprehensive preparation levels the playing field.
All U.S. licensing jurisdictions accept the INBDE
Available at Prometric centers across the U.S. and Canada
Unlike the NDEB AFK (3 attempts max), you can retake the INBDE
Experience INBDE-Style Questions
500 questions across 2 days. Try these to see what you'll face—biostatistics and Patient Box cases.
A follow-up study shows screened patients survive 10 years post-diagnosis while symptomatically diagnosed patients survive 5 years. However, the age at death is identical (65 years) for both groups. Which bias explains this apparent increase in survival time?
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Frequently Asked Questions
Common questions about the INBDE exam and QuizOdontist