Failed the INBDE? Here's Exactly What To Do Next

If you just failed the INBDE, you're probably cycling between panic, frustration, and a hundred open browser tabs trying to figure out what you need to do next. First off, it’s going to be okay. You are not the first person this has happened to, and you will not be the last.

I've talked to dozens of students who've been exactly where you are right now. I’ve noticed that most retakers don't fail because they weren't smart enough or didn't study hard enough. They fail because something about their approach didn't match what this exam actually tests them on.

That's 100% fixable. This post covers the logistics (timelines, costs, attempt limits) and the strategy (how to use your score report, how to change your study plan, and what actually moves the needle the second time around).

How common is it to fail the INBDE?

More common than you think, especially after the 2024 performance standard increase. You are not an outlier.

The JCNDE raised the INBDE passing standard in May 2024, and it hit hard. Before the change, first-attempt failure rates for students from accredited U.S. dental programs hovered around 1%. After the change, that number jumped to roughly 4.8% in 2024.

For international dentists from non-accredited programs, the numbers are significantly higher. First-attempt failure rates for non-accredited candidates ranged from 16% to 33% over the past four years, depending on the year. I wrote about this in detail in our INBDE pass rates breakdown.

And here's the part that matters for retakers specifically: failure rates on subsequent attempts are higher than on first attempts. For CODA-accredited candidates, retake failure rates average between 13% and 16%. For international dentists, they can exceed 50%.

That last number is not meant to scare you. It's meant to underscore that doing the same thing again and hoping for a different result is a real risk. The students who pass on their second attempt are almost always the ones who changed something meaningful about how they prepared.

What does your score report actually tell you?

If you failed, your report includes a diagnostic breakdown by content area. If you passed, you just get "pass" with no score.

The INBDE is scored on a scale of 49 to 99. A 75 is the minimum passing score. But that scaled score doesn't translate directly to a percentage of questions answered correctly, so a 74 doesn't mean you were one question away.

If you failed, your score report includes your scaled score plus a breakdown of your performance across the INBDE's foundation and clinical content areas. This is the most valuable piece of information you have. It tells you, in broad strokes, where you underperformed relative to the passing standard.

The areas it reports on align with the JCNDE's content domains: things like biomedical sciences, dental anatomy, clinical treatment, pharmacology, and patient management. You won't get question-level detail (they don't tell you which specific questions you missed), but you'll see which domains dragged your score down.

Write those weak domains down. They're the foundation of your retake plan.

How long do you have to wait before retaking?

60 days minimum between attempts. Not 90 days, which is a common misconception.

The current JCNDE policy requires a minimum 60-day waiting period between unsuccessful INBDE attempts. A lot of sources (including some competitor websites) still cite 90 days, which was the old policy. The 2026 Candidate Guide confirms 60 days.

Beyond the waiting period, there are additional limits:

• You can't take the INBDE more than four times in any rolling 12-month period.
• You must pass within five years of your first attempt or within five total attempts, whichever comes first.
• As of a June 2025 JCNDE policy update, candidates who have exhausted five attempts can now test once every six months (previously, the pathway after five failures was less clearly defined).

The 60-day window is actually a useful amount of time. It's long enough to meaningfully restructure your study approach, but short enough that you won't lose the foundational knowledge you've already built. Don't rush to schedule the earliest possible date if you need more time, but don't let momentum die either. Somewhere between 60 and 90 days is where most successful retakers land.

How much does it cost to retake the INBDE?

$890 for the exam itself (at the time of writing this post). International candidates pay an additional $435 processing fee.

Every INBDE attempt costs $890, which covers results reporting to your dental program and up to three licensing jurisdictions. If you're an international candidate from a non-CODA-accredited program, you'll also need to pay the $435 non-refundable processing fee again.

So for international dentists, a retake runs $1,325 total. On top of whatever you're spending on prep materials. This is real money, and it's one more reason to approach the retake deliberately rather than just booking the next available date and hoping.

If budget is a factor (and for most students it is), think carefully about where your prep dollars go the second time around. Spending $300+ on another comprehensive course subscription when your core issue was insufficient question practice, for example, might not be the best allocation.

Should you change your study approach for the retake?

Yes, almost absolutely. If your approach didn't work the first time, repeating it is unlikely to produce a different outcome under the raised performance standard.

If you used the same study materials, the same study schedule, and the same general approach, and it wasn't enough, you need to change something. The question is what.

The most common patterns I see in students who fail the INBDE:

Too much passive review, not enough active practice. Rewatching videos and rereading notes feels productive but doesn't build the pattern recognition and clinical reasoning the INBDE actually tests. I wrote about the research behind this if you want the full picture, but the short version is: drilling questions is what builds exam-ready recall. Passive review supports it but can't replace it.

Reviewing everything equally instead of targeting weak areas. Your score report tells you where you underperformed. A full-content review when you only have 60 to 90 days is a poor use of limited time. You need to concentrate your effort on the domains that cost you the most points.

Not practicing under timed conditions. The INBDE gives you roughly 90 seconds per question across 500 questions over two days. If you've been practicing untimed, you may know the material but struggle with the pace. Time pressure changes how you process questions, and you need to train for that separately.

Studying subjects in isolation instead of integrated sets. The INBDE is an integrated exam. A question about a patient with diabetes who needs a tooth extraction isn't just an oral surgery question. It's testing pharmacology, medical history assessment, and clinical judgment at the same time. Practicing mixed-topic sets is essential.

How do you figure out what actually went wrong?

Start with your diagnostic score report, then audit your study method, not just your content coverage.

Your score report gives you the "where" (which content areas were weak), but you also need to figure out the "why." Two people can both score poorly in pharmacology for very different reasons. One might not know the drug classes well enough. The other might know them fine in isolation but struggle to apply that knowledge to a clinical scenario with a patient history, vitals, and a question stem that buries the relevant detail.

Here's a diagnostic process that works:

Step 1: List your weak domains from the score report. These are your priority areas.

Step 2: Do 50 to 100 practice questions exclusively in those weak areas. Don't review content first. Just drill the questions and pay close attention to which ones you're missing and why.

Step 3: Categorize your errors. When you get a question wrong, is it because you didn't know the content at all? Because you knew it but couldn't apply it to the clinical scenario? Because you misread the question stem? Because you second-guessed yourself and changed your answer? Each of these is a different problem with a different fix.

Step 4: Match your fix to the actual problem. Content gaps need targeted review. Application gaps need more practice with case-based and caselet-style questions. Misreading issues need slower, more deliberate question-stem parsing. Second-guessing is often a confidence issue that improves with volume.

If you're using a question bank with tagging and performance tracking, this process gets a lot easier. On Blip, you can tag questions as "Needs work" and then build future sessions exclusively from those tagged questions, which turns your error analysis into a targeted drill plan. Adaptive mode takes this further by automatically prioritizing your weakest areas, previously missed concepts, and overdue spaced repetition items. But regardless of what tool you use, the principle is the same: let your mistakes guide your study plan, not a generic content outline.

What should your retake study plan look like?

Front-load your weak areas, then shift to mixed-topic timed practice as your exam date approaches.

A 60- to 90-day retake timeline breaks down roughly like this:

Weeks 1 through 3: targeted remediation. Focus almost entirely on the weak domains from your score report. Do content review only for topics where you had genuine knowledge gaps (Step 3 from the diagnostic process above). For everything else, drill questions. Aim for 50 to 80 questions per day in your weak areas. Review every explanation, even on questions you got right.

Weeks 4 through 6: mixed-topic integration. Start broadening your question sets to include all subjects. This is where you rebuild the integrated thinking the INBDE requires. Keep your weak areas represented at a higher proportion, but don't ignore your strengths entirely. Increase your daily question volume if you can.

Weeks 7 through 9 (or until exam day): full simulation. Timed, mixed-topic sessions that mirror exam conditions. Practice sitting for 2 to 3 hour blocks. Build stamina. Focus on your pacing: are you consistently hitting that 90-second-per-question benchmark? Our study schedules post has more detailed phase breakdowns you can adapt to your specific timeline.

A few things that are especially important for retakers:

• Don't abandon what worked. If your content knowledge in some areas was solid the first time, you don't need to redo all of that from scratch. Maintain it with periodic mixed sets, but spend your energy fixing what was broken.
• Track your performance over time. You need to see whether your weak areas are actually improving week over week, not just hope they are. Any analytics dashboard that shows accuracy by subject over time will work for this.
• Practice under realistic time pressure at least twice a week from the start. Don't save timed practice for the end. Time pressure affects retrieval, and you need to build that tolerance early.

Is the INBDE harder the second time?

The exam itself isn't harder, but the psychological pressure is real. Preparation and volume are the best antidotes.

The INBDE doesn't change based on how many times you've taken it. You'll get a different set of 500 questions drawn from the same content blueprint, at roughly the same difficulty level. The test doesn't "know" you failed before and it's not punishing you.

What does change is your headspace. Most retakers describe higher anxiety, more second-guessing, and a persistent worry that they'll fail again. That's completely normal. And it's also something you can address with preparation.

The students I've talked to who felt most confident going into their second attempt shared a few traits: they had drilled a high volume of questions (1,500 or more in the weeks leading up), they had clear evidence from their practice scores that their weak areas had improved, and they had practiced under timed conditions enough that the pacing felt automatic. Confidence on exam day isn't something you talk yourself into. It's something you build through reps.

If exam anxiety is something you're dealing with beyond normal test stress, that's worth addressing directly. Your dental school may have counseling resources, and there's no shame in using them. Managing your mental state is as much a part of exam prep as reviewing high-yield topics.

Frequently asked questions

How many times can you take the INBDE?

You can take the INBDE up to five times total. You must pass within five years of your first attempt or within five attempts, whichever comes first. After exhausting five attempts, a June 2025 JCNDE policy update now allows candidates to test once every six months. You cannot take the exam more than four times in any rolling 12-month period.

Does failing the INBDE go on your record?

Your INBDE results report includes all attempts on the National Board Dental Examinations (including any prior NBDE Part I and Part II attempts). State licensing boards will see your full exam history, including failures. However, a passing score on a subsequent attempt satisfies the licensure requirement. Schools and residency programs may also see your attempt history, but a pass is a pass.

Do NBDE failures count against my INBDE attempts?

No. INBDE attempts are tracked independently from the NBDE. If you previously failed the NBDE Part I or Part II, those attempts do not count toward your five INBDE attempts. However, your INBDE results report will still list all national board exam attempts.

Does my dental school find out if I fail the INBDE?

For students at CODA-accredited programs, yes. INBDE results are reported to your dental program. Your school will know your result. If you're an international candidate not currently enrolled in a U.S. program, results go to the licensing jurisdictions you designated during registration.

How long does it take to get INBDE results?

Results are typically available within 3 to 4 weeks after your exam date. You'll receive your score report through your DENTPIN account on the ADA website. There's no way to speed this up, and the JCNDE does not provide preliminary results.

Can I see which questions I got wrong on the INBDE?

No. The INBDE does not provide question-level results. If you failed, your score report shows your scaled score and a performance breakdown by content domain, but it does not identify specific questions you answered incorrectly. This is why building your own error-tracking system during practice is so important: it's the only question-level diagnostic you'll have.

What if I scored a 74? Was I really that close?

The scaled score doesn't map linearly to questions answered correctly, so a 74 doesn't necessarily mean you were one question away from passing. The scoring model accounts for question difficulty and other statistical factors. That said, a score in the low 70s does indicate you were in the vicinity of the passing standard, and a focused, targeted retake plan has a strong chance of getting you over the line.

Sources

1. INBDE 2026 Candidate Guide (PDF) — JCNDE. Updated December 2025. Authoritative reference for retake policies, fees, eligibility, and waiting periods.
2. JCNDE Annual Report 2025 (PDF) — ADA. Historical failure rates and administration statistics.
3. INBDE Pass Rates: What the Data Actually Shows — Blip Dental. Our full breakdown of INBDE pass rate data by year, candidate type, and attempt number.