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Lingual access opening of an incisor: a rounded triangle over the pulp chamber with tooth structure intact on all sides

ADEX Endodontic exam · tooth #8 · criteria v26.8 · Free with an account

ADEX anterior endo, the way examiners score it.

A visual study guide to the anterior procedure of the ADEX Endodontic exam on tooth #8: the five critical errors that end the procedure, then every check examiners score from the access opening to the obturation under ADEX criteria v26.8, read through the translucent root with real graded work.

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On the exams: Up to three hours for two procedures: an anterior procedure on tooth #8 (access preparation, canal preparation and obturation) and a posterior procedure on tooth #14 (access preparation and canal identification). Sources

The checks examiners score

Every check on the ADEX criteria sheet the guide covers (criteria v26.8), explained one by one with real graded work.

Anterior endo · 10 checks on tooth #8

  1. Where you opened
  2. How big you opened
  3. The walls inside the opening
  4. The cervical third
  5. The mid-root
  6. How far you took the file
  7. How far the filling goes
  8. Voids
  9. Where the filling sits against the CEJ
  10. Separated file

The ADEX Dental Examination at a glance

Official exam details as published by ADEX. Our guide is a study aid, not the examination document.

The exam series
The ADEX Dental Examination combines the computer-based DLOSCE with five clinical exams: Periodontal, Endodontic, Prosthodontic, Anterior Restorative and Posterior Restorative. All parts must be passed within 18 months of the first attempt of any part.
Source: ADEX Dental Examination page (opens in a new tab) · Examination Fees: the five clinical exams and the DLOSCE; ADEX Candidate Guide (PDF) (opens in a new tab) · The ADEX Examination Series & 18-Month Rule: the 18-month rule
Where you work
The clinical exams are performed on simulated patient manikins and proprietary typodont models, in a clinic or simulation laboratory.
Source: ADEX Dental Candidate Manual, Clinical (PDF) (opens in a new tab) · Examination Overview
Endodontic exam
Up to three hours for two procedures: an anterior procedure on tooth #8 (access preparation, canal preparation and obturation) and a posterior procedure on tooth #14 (access preparation and canal identification).
Source: ADEX Dental Candidate Manual, Clinical (PDF) (opens in a new tab) · Examination Overview; Endodontic & Prosthodontic Performance Expectations
Passing score
Examiners rate each criterion Clinically Acceptable, Marginally Substandard or Critically Deficient. A score of 75 or greater is required to pass each part, and results are reported as pass or fail.
Source: ADEX Dental Candidate Manual, Clinical (PDF) (opens in a new tab) · Scoring Overview — Endodontic and Prosthodontic Exams
Exam fee
$2,995 for the full ADEX Dental series, plus a facility fee that varies by location and a $150 typodont fee per procedure. It includes one complimentary retake per clinical procedure.
Source: ADEX Dental Examination page (opens in a new tab) · Examination Fees – ADEX Dental Series

Source: ADEX Dental Candidate Manual and Candidate Guide, 2026–2027 season. Confirm current details at adextesting.org. Last verified .

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Dr. Bianca Rebello

Dr. Bianca Rebello

New York UniversityPassed
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Guides for the ADEX exam

Frequently Asked Questions

The ADEX Dental Examination combines the computer-based DLOSCE with five clinical exams: Periodontal, Endodontic, Prosthodontic, Anterior Restorative and Posterior Restorative. All parts must be passed within 18 months of the first attempt of any part.
Up to three hours for two procedures: an anterior procedure on tooth #8 (access preparation, canal preparation and obturation) and a posterior procedure on tooth #14 (access preparation and canal identification).
The anterior procedure of the Endodontic exam on tooth #8, for the ADEX exam season August 1, 2026 – July 31, 2027: the critical errors that end the procedure, then each check examiners score from the access opening to the obturation, with photographs of graded work. The posterior procedure on tooth #14 is not covered yet.
Yes. Create a free account and verify your email: both guides open right away. No credit card, no trial and no subscription. The INBDE question bank and the Florida courses are separate products you can add later with the same login.
No. The guides are study aids, not the examination documents: read the official ADEX criteria before you sit. Dental Board Tutor is not affiliated with ADEX (the American Board of Dental Examiners).

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