Chapter 05ADEX and state licensure
Completing a US dental school is not the end of the road.
Every IDP graduate must still pass a regional clinical board examination before any state will license them. The dominant exam is ADEX, administered by the American Board of Dental Examiners (itself a 2025 merger of the previous CDCA-WREB-CITA consortium and ADEX). Per-component fee USD 1,295. Four-component full battery USD 5,180. Five-component full battery (post-1 August 2026) USD 6,475.
The five components are Restorative Anterior, Restorative Posterior, Endodontic, Prosthodontic, and — newly required from 1 August 2026 for new candidates — Periodontal. Previously licensed dentists are grandfathered. ADEX is administered at major dental schools across every US region: NYU, Penn, Harvard, and Tufts in the Northeast; USC, UCLA, UCSF, and Loma Linda in the West; full coverage of the Mid-Atlantic, South, and Midwest.
Other regional clinical exams — CRDTS, SRTA, DLOSCE — remain in use in specific states, but ADEX is the closest thing to a national standard.