DABOI/ID Pass Rate 2026: What the Data Shows

The Only Official Number That Exists

If you search for a "DABOI/ID pass rate," you'll find plenty of vague claims but very little sourced data. The one number ABOI has actually published comes from its July 2024 newsletter: a 62% pass rate on the Part I Written Examination among a cohort of 58 candidates. That's it. There is no rolling average, no year-by-year trend line, and no breakdown by domain or by candidate pathway published alongside it.

This matters because a lot of exam-prep content online quietly imports statistics from other credentials that happen to share the "DABOI/ID" acronym. This article does not do that. Every figure here traces back to ABOI's own published materials, and where ABOI hasn't published a number, we say so instead of guessing.

What a 62% Pass Rate Actually Means for You

A 62% pass rate among 58 candidates means roughly one in three test-takers in that cohort did not pass Part I on that attempt. It doesn't tell you why they didn't pass, what their preparation looked like, or whether they were general dentists, AAID Fellows, or specialists using an alternate pathway. What it does tell you is that the exam is not a rubber stamp: it's a criterion-referenced test, meaning your score is measured against a fixed passing standard rather than curved against how everyone else in the room performed.

That's actually useful information. A criterion-referenced passing standard means there's no benefit to "beating the curve" - there's no curve. Your job is simply to know the material well enough to clear a fixed bar. If you want a full breakdown of what that bar consists of, see the companion piece on DABOI/ID Passing Score 2026: Exactly What You Need to Pass.

Why Candidates Fail: The Domain Breakdown

ABOI's five-domain blueprint, published in the July 1, 2026 handbook, is the closest thing to a roadmap for where pass-rate risk concentrates. The weighting is heavily skewed toward one domain:

Notice that Implementing Patient Treatment alone accounts for 44% of the entire written exam - nearly as much as the other four domains combined. Candidates who spread their study time evenly across five domains are structurally underweighting the section that determines most of their score. A detailed walk-through of each domain's content and question style is available in the DABOI/ID Exam Domains 2026: Complete Guide to All 5 Content Areas.

Format and Time Pressure as Pass-Rate Factors

Pass rates aren't only about knowledge gaps - they're also about exam mechanics. The Part I Written Examination is delivered at Pearson VUE testing centers: 200 single-best-answer multiple-choice questions, five hours, no scheduled break. Any break you take is voluntary and comes directly out of your five hours.

That's roughly 1.5 minutes per question if you use every minute of the clock and never pause. In practice, many candidates need a bathroom or mental-reset break somewhere in a five-hour session, which means the realistic per-question budget is tighter than the raw math suggests. Poor pacing - spending too long on early diagnostic-data questions and running short on time during the heavily-weighted Implementing Patient Treatment section - is a common, avoidable way to lose points that have nothing to do with clinical knowledge.

For a broader look at how the format, question style, and time pressure combine to make this exam genuinely demanding, see How Hard Is the DABOI/ID Exam? Complete Difficulty Guide 2026.

The Two-Part Structure Changes the Math

One detail that's easy to overlook when thinking about "pass rates": passing Part I does not make you a Diplomate. Full certification also requires Part II, the oral assessment, which combines standardized cases with defense of eight candidate-submitted cases (four selected by the committee without advance disclosure). Each submitted case must be finally restored and functional for at least one year at the time of submission.

Critically, Part I and Part II cannot be taken in the same calendar year. That means a failed Part I attempt doesn't just cost you a retake fee - it pushes your entire timeline to Diplomate status back by at least a full cycle, since you can't even attempt the oral component until you've cleared the written exam and waited for the next eligible year.

This is also why case template changes matter for planning ahead: oral case templates 2, 7, and 8 change for 2027 and become mandatory for all oral applicants in 2028. If your Part I attempt slips into a later cycle, you may be preparing Part II cases under a different template than you originally planned around.

Fees, Deadlines, and What a Retake Costs

Understanding the pass-rate stakes means understanding what a failed attempt actually costs, in both time and money. Under the published 2027-cycle fee schedule, the initial written pathway totals $1,400: a $600 nonrefundable application fee plus an $800 written examination fee. If you don't pass, the written reexamination fee alone is $800 - you don't repeat the application fee, but you do lose the original $600 and have to wait for the next eligible testing cycle.

Part II costs $1,500, with an oral reexamination fee of $1,500 as well. The application deadline for the current published cycle is December 1, 2026, with the Part I exam date set for April 14, 2027 - miss the deadline and you're waiting for the next cycle entirely.

These figures explain why a first-attempt pass matters financially, not just professionally. For the complete cost picture including CE hour investments and ongoing dues, read DABOI/ID Certification Cost 2026: Complete Pricing Breakdown. For eligibility mechanics - including the 670 documented implant-related CE hour requirement and the AAID Fellow exemption path - see DABOI/ID Requirements 2026: Eligibility, Prerequisites & How to Qualify.

A Domain-Weighted Study Timeline

Given that Implementing Patient Treatment carries 44% of the blueprint, your study calendar should not allocate five roughly equal blocks of time to five domains. Below is one way to weight preparation weeks against the actual exam structure.

This isn't a generic weekly template - it's built directly around the 44% weight of Implementing Patient Treatment and the fixed five-hour, no-break format. For a step-by-step first-attempt strategy that goes deeper into resource selection and case-review technique, see the DABOI/ID Study Guide 2026: How to Pass on Your First Attempt. You can also build timed, domain-weighted practice sessions directly on our practice test platform to mirror the actual Pearson VUE experience before exam day.

Improving Your Odds Beyond the Average

The 62% figure describes a cohort, not you. Candidates who go in with a clear domain-weighted plan, who've simulated the exact 200-question/five-hour format at least once, and who understand the criterion-referenced passing standard are working from a materially different position than an unprepared average. A few specific levers matter more than general test-taking advice:

• Know your exemption status early. AAID Fellows receive a Part I exemption plus 200 CE hours of credit toward the CE requirement - verify eligibility before assuming you need the full written pathway.
• Treat the CE hour requirement as a prerequisite, not busywork. The 670 documented implant-related CE hours from AGD/PACE or ADA/CERP recognized programs need to be in place and documented before you can even sit for Part I.
• Practice with original clinical cases, not just terminology recall. ABOI's own preparation guidance emphasizes diagnosis, treatment planning, surgical and prosthetic treatment, implant maintenance, and complications through case-based questions with explained answers - rote memorization of terms won't match the question style.
• Build in your break decision ahead of time. Since any break is voluntary and consumes exam time, decide in advance whether you'll take one and how long, rather than improvising mid-exam.

If you're weighing whether the investment of time, CE hours, and fees is worth it relative to career outcomes, that broader calculation is covered in Is the DABOI/ID Certification Worth It? Complete ROI Analysis 2026, and practice-based dentists exploring what certification opens up professionally can review the DABOI/ID Salary Guide 2026: Complete Earnings Analysis. You can also run domain-specific drills on our practice platform to identify weak spots before committing to a testing date.

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