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
Passing next to marked down
Photos of real graded work from the guides, with the score each one earned.
Anterior endo
01 · Where you opened
ACC · Adheres to the criteria 
Anterior endo
01 · Where you opened
DEF · Critical deficiency 
Anterior endo
02 · How big you opened
DEF · Critical deficiency
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
- Where you opened
- How big you opened
- The walls inside the opening
- The cervical third
- The mid-root
- How far you took the file
- How far the filling goes
- Voids
- Where the filling sits against the CEJ
- 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 .
What learners say
Dr. Bianca R.
New York UniversityPassed
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Dr. Surendar S
New York UniversityPassed
“DB Tutor helped me prepare for the INBDE in a way I could actually trust, and I passed on my next attempt after relying on it as my main study resource. The subject wise, high-yield question bank is built like a boot camp. Instead of wading through material that won’t show up on the exam, I could focus on the concepts that matter most, and the questions felt representative of the real test. What set it apart for me was the reasoning. When I chose an answer, the AI asked me to explain why I thought it was right, and it then showed me where my logic held up and where it didn’t. That habit removed a lot of the self-deception I had when studying alone. I was no longer reassured by simply getting an answer right; I had to justify it. The adaptive scheduling was equally valuable. DB Tutor tracked my strong and weak areas and adjusted my study plan around the time I had available, so I always knew what to work on next. It kept me moving toward the exam date without the anxiety of wondering whether I was spending time on the right topics. If you’re preparing for the INBDE and want a structured, honest, and efficient way to study, I’d recommend DB Tutor.”
Guides for the ADEX exam
- ADEXADEX Crown Prep Criteria 2026: What Is on the Prosthodontic Exam and How It Is GradedThe ADEX Prosthodontic exam explained: the three crown preparations, time, how examiners grade them, the passing score, retakes and fees, each fact sourced to ADEX.Updated
- ADEXADEX vs Other Clinical Dental Exams: ADEX and CRDTS ComparedWho runs the clinical dental licensure exams after the CDCA-WREB-CITA and SRTA mergers, and how the ADEX and CRDTS exams compare, each fact sourced to the agencies.Updated
- ADEXADEX Endodontic Exam 2026: What Is on It and How It Is GradedThe ADEX Endodontic exam explained: the anterior (#8) and posterior (#14) procedures, time, how examiners grade them, the passing score, retakes and fees, each fact sourced to ADEX.Updated
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).
