INBDE Scoring Guide
How scores are calculated, what they mean, and how to reach your goal score.
Scoring Overview
INBDE is pass/fail. The passing standard is set by Angoff methodology based on expert judgment. Internal scoring is scaled but only pass/fail status is reported to schools and licensing boards.
Score Scale
| Section | Duration | Max Score |
|---|---|---|
| Biomedical Sciences | 330 min | 50 |
| Clinical Sciences | 330 min | 50 |
Section Breakdown
biomedical
Day 1 — biomedical sciences integrated with foundational dental knowledge in a case-based format.
AnatomyPhysiologyBiochemistryMicrobiologyPharmacologyPathologyBehavioral sciences
clinical
Day 2 — clinical reasoning across patient cases covering diagnosis, treatment planning, and management.
Diagnostic reasoningTreatment planningDental anatomyOral pathologyPeriodonticsRadiologyPatient management
Key Facts
- Length
- 11 hours (day 1: 6h 15m, day 2: 3h 30m)
- Questions
- ~500 total
- Format
- Pass/fail only
- Cost
- $540 USD
- When
- After D3 or D4 year
- Pass rate
- ~90% first-time
Study Tips
- 1.Use a structured Qbank like Board Vitals or Dental Decks.
- 2.Review high-yield topics: oral pathology, pharmacology, prosthodontics.
- 3.Practice clinical case questions — INBDE is more case-based than old NBDE.
- 4.Don't neglect biostats and behavioral sciences.
- 5.Take full-length timed practice tests to build endurance.