INBDE (Integrated National Board Dental Examination (JCNDE)) — Free Online Mock Test

INBDE exam at a glance

INBDE full-length mock tests

Attempt 50 full-length INBDE mock tests, each a distinct question set built on the real 500-question, 900-minute pattern — with instant scoring and section-wise analysis. The first 3 are free.

INBDE key facts & eligibility

Who is eligible for INBDE?

Enrolled in or graduated from an accredited dental education program, applying through the JCNDE per its candidate guide.

Last verified July 2026 against JCNDE — INBDE. Always confirm current details on the official website before you register.

INBDE section breakdown

The INBDE mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. Inter-section breaks are enforced.

• Day 1 Morning — Foundational Knowledge (125 Q)
  125 questions · 225 minutes · ~108 sec/question
• Day 1 Afternoon — Clinical Cases (125 Q)
  125 questions · 225 minutes · ~108 sec/question
• Day 2 Morning — Patient Management (125 Q)
  125 questions · 225 minutes · ~108 sec/question
• Day 2 Afternoon — Ethics & Behavioural (125 Q)
  125 questions · 225 minutes · ~108 sec/question

INBDE scoring & marking scheme

Strategy: INBDE has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.

Scale: INBDE (pass scaled 75).

How INBDE is conducted

• Mode
  Standard — practice without proctoring on Wrexa Edge, or enable optional webcam proctoring to simulate test-day conditions.
• Test format
  Linear / fixed-form — every candidate sees the same number of questions per section.
• Backtracking
  Allowed — you can revisit and change answers within a section.
• Mark for review
  Available — flag tough questions and return to them before submitting the section.

INBDE time strategy

With 500 questions in 900 minutes, you have about 108 seconds per question on average. Successful candidates aim for the following pacing on each section:

• Day 1 Morning — Foundational Knowledge (125 Q)
  Target ~108 sec/question. If a question takes more than 162 seconds, mark for review and move on.
• Day 1 Afternoon — Clinical Cases (125 Q)
  Target ~108 sec/question. If a question takes more than 162 seconds, mark for review and move on.
• Day 2 Morning — Patient Management (125 Q)
  Target ~108 sec/question. If a question takes more than 162 seconds, mark for review and move on.
• Day 2 Afternoon — Ethics & Behavioural (125 Q)
  Target ~108 sec/question. If a question takes more than 162 seconds, mark for review and move on.

Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.

INBDE topics covered

Across the 50 Wrexa Edge variants of INBDE, the following topics appear most often (sample distribution from one variant):

Day 1 Morning — Foundational Knowledge (125 Q)

• Respiratory · 7
• Renal · 7
• Lower Limb · 7
• Thorax · 6
• Inborn Errors of Metabolism · 5
• Carbohydrate Metabolism · 4
• Electron Transport Chain · 4
• Lipid Metabolism · 4

Day 1 Afternoon — Clinical Cases (125 Q)

• Reading — Vaccines · 5
• Reading — Neural Networks · 5
• Reading — Plate Tectonics · 5
• Reading — Trade History · 4
• Reading — Photosynthesis · 4
• Path — Cysts · 3
• Radiography — Views · 3
• Reading — Marine Biology · 3

Day 2 Morning — Patient Management (125 Q)

• Reading — Vaccines · 6
• Reading — Neural Networks · 5
• Reading — Plate Tectonics · 5
• Reading — Photosynthesis · 5
• Reading — Trade History · 4
• Reading — Industrialisation · 4
• Path — Cysts · 3
• Reading — Marine Biology · 3

Day 2 Afternoon — Ethics & Behavioural (125 Q)

• MedEthics — Breaking bad news · 8
• MedEthics — Confidentiality · 7
• MedEthics — End-of-life · 6
• MedEthics — Capacity · 5
• MedEthics — Informed consent · 4
• Path — Cysts · 3
• MedEthics — Truth-telling · 3
• MedEthics — Minors · 3

INBDE difficulty calibration

Elite tier. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months.

Current US dental licensure exam (replaced NBDE I & II in 2022). Two 7-hour days, ~500 MCQ. Integrates basic + behavioural + clinical sciences in patient-case scenarios. Foundational Knowledge + Clinical Content domains. Pass at 75 scaled. · Official language: English.

Verified content — Wrexa Edge's INBDE bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).

How Wrexa Edge prepares you for INBDE

• Real test-day interface
  Our vignette skin mirrors the actual INBDE testing software — same timer, palette, tools, and navigation.
• 50 distinct variants
  25000 unique practice questions, each variant a fresh test — not just shuffled options.
• Detailed analytics
  Scaled score, section accuracy, topic-wise heatmap, time-per-question — see where to focus after every attempt.
• Spaced repetition (Notebook)
  Wrong answers and flagged questions flow into an SM-2 spaced-repetition deck so you actually retain what you learn.
• Optional proctoring
  Browser-based face-api detection (no install) — turn it on to simulate a high-stakes environment.
• Free to start
  No credit card. Sign up, pick a variant, and your first INBDE mock starts in under a minute.

Expert take: what INBDE really tests

The Integrated National Board Dental Examination (INBDE), from the JCNDE (part of the ADA), is a written exam required for US dental licensure that replaced the NBDE Part I and Part II. It has 500 multiple-choice items over two days (360 on Day 1, 140 on Day 2), integrating biomedical and clinical content across 10 Foundation Knowledge areas and 56 Clinical Content areas. It is pass/fail, reported on a 49–99 scale with 75 to pass; candidates who pass receive only a "pass" with no numeric score.

INBDE study plan

A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.

Where INBDE can take you

A strong INBDE result opens up these careers and higher-study paths:

• US dental licensure
  The INBDE is required for dental licensure across US jurisdictions.
• Entry to dental practice
  It replaced NBDE Part I and Part II as a single integrated exam.

Best books & official prep for INBDE

• INBDE test specifications & candidate guide — JCNDE
  Official Foundation Knowledge and Clinical Content areas.
• INBDE review materials — Various
  500 items over two days; pass mark 75 on the 49–99 scale.

Official practice: Prepare from the JCNDE INBDE test specifications and integrated biomedical-clinical review; the pass mark is 75 on the 49–99 scale.

Previous-year papers: JCNDE publishes test specifications and a candidate guide; review providers supply question banks.

Frequently asked questions

What is the INBDE exam pattern?

Integrated National Board Dental Examination (JCNDE) contains 500 questions across 4 sections: Day 1 Morning — Foundational Knowledge (125 Q), Day 1 Afternoon — Clinical Cases (125 Q), Day 2 Morning — Patient Management (125 Q), Day 2 Afternoon — Ethics & Behavioural (125 Q). Total duration is 900 minutes (about 108 seconds per question).

Does INBDE have negative marking?

No — INBDE has no negative marking. Each correct answer is worth 1 mark, so attempt every question.

How is INBDE scored?

Scaled score range: 0 to 100. INBDE (pass scaled 75).

How can I practise INBDE online for free?

Wrexa Edge gives you 3 free full-length INBDE mock tests — with instant scoring, detailed explanations and analytics — plus 47 more with Pro. Start practising in under a minute, no card required.

What is the difficulty level of INBDE?

INBDE is rated Elite difficulty on Wrexa Edge. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months. Current US dental licensure exam (replaced NBDE I & II in 2022). Two 7-hour days, ~500 MCQ. Integrates basic + behavioural + clinical sciences in patient-case scenarios. Foundational Knowledge + Clinical Content domains. Pass at 75 scaled. · Official language: English.

How long is the INBDE exam?

INBDE runs for 900 minutes total across 4 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including mandatory inter-section breaks.

What topics are covered in INBDE?

INBDE is split into: Day 1 Morning — Foundational Knowledge (125 Q), Day 1 Afternoon — Clinical Cases (125 Q), Day 2 Morning — Patient Management (125 Q), Day 2 Afternoon — Ethics & Behavioural (125 Q). Each section is timed and weighted separately. Current US dental licensure exam (replaced NBDE I & II in 2022). Two 7-hour days, ~500 MCQ. Integrates basic + behavioural + clinical sciences in patient-case scenarios. Foundational Knowledge + Clinical Content domains. Pass at 75 scaled. · Official language: English.

What tools or aids are allowed during INBDE?

No special tools are required.

Is the INBDE test adaptive?

No — INBDE is a fixed-form (linear) test. Every candidate sees the same number of questions per section.

How many INBDE mock tests does Wrexa Edge offer?

Wrexa Edge generates 50 distinct INBDE variants — each with different question content, not just shuffled options — the first 3 free for everyone and 47 more with Pro. That's 25000 unique practice questions in the real test-day interface.

Is there a free INBDE test series 2026?

Yes. The Wrexa Edge INBDE test series for 2026 gives you 3 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.

Are INBDE previous year question–style papers included?

Every INBDE mock is modelled on the official exam pattern and the style of previous years' papers — the same 500-question structure, sections and marking — so your practice mirrors the real paper you'll sit.

Which is the best free INBDE mock test online?

Wrexa Edge's INBDE mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.

Can I take the INBDE mock test on mobile?

Yes. INBDE mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.

What is the INBDE syllabus?

The INBDE syllabus maps to its 4 sections: Day 1 Morning — Foundational Knowledge (125 Q), Day 1 Afternoon — Clinical Cases (125 Q), Day 2 Morning — Patient Management (125 Q), Day 2 Afternoon — Ethics & Behavioural (125 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.

What is the eligibility for INBDE?

Enrolled in or graduated from an accredited dental education program, applying through the JCNDE per its candidate guide. Wrexa Edge focuses on realistic INBDE practice: 3 free full-length mocks in the exact exam pattern, ready whenever you are.

When is the INBDE exam and how should I prepare?

Official INBDE exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 3 free INBDE mocks with instant scoring so you can track your readiness week by week.

Related exams & practice tests

Candidates preparing for INBDE also practise these on Wrexa Edge:

Browse more: All Medical Licensing exams →  ·  All United States exams →  ·  Full exam catalog →

• Global exam practice tests
• Exam calendar 2026

Ready to ace INBDE?

Join thousands of candidates practising on Wrexa Edge. Free signup, 50 variants per exam, instant scoring.