Method · v3
Built by a dentist.
Lumen started because the dental-board prep market was broken. Question banks were either ten years old or sourced from recalled content — sometimes both. The good ones cost a month’s rent and still left candidates guessing which topic was actually costing them marks.
So we built our own. Items are drafted against published competency blueprints, peer-reviewed, and a licensed clinician signs off on every question before it reaches a student. Every rationale cites the guideline it stands on.
Today: 9 boards, 23,000+ approved items, one promise we won’t make — that you’ll pass. That part is on you.
Question lifecycle
How a question is built.
STAGE 01
Drafted
Items written against a published competency blueprint, citing AAE, AAP/EFP, AAOMS, ICCC, CDC, OSHA. Never recalls.
STAGE 02
Peer reviewed
Second clinician checks stem clarity, distractor quality, citation accuracy. Rejects flow back with notes.
STAGE 03
Clinician signed
A licensed dentist reads every approved item and signs off. No exceptions.
STAGE 04
Student ready
Item enters the bank, gets blueprint-weighted into your next diagnostic or mock — and your weak-topic feed adapts.
Behind Lumen
Independent.
Clinician-led.
Lumen is a small independent team led by a licensed clinician who reviews and signs every item. No investors, no ads sold against your study time, no farming your attempts back into a model. The product earns its keep one credit pack at a time.
23,000+
approved items
9
boards covered
100%
clinician-signed
Independent study tool. Not affiliated with or endorsed by NDEB, ADA, JCNDE, FDHRC, NDAEB, or DANB. Items are framed against publicly available competency guidelines — never proprietary content. We don’t promise passing scores.