NBDHE Exam Prep

One place to study and review

Read a focused lesson, apply it to original questions, and use the explanation to decide what to revisit. Each practice question includes the keyed answer, a rationale, explanations for the other choices, and a source. Mark an item for review and return to it from your account.

The curriculum covers scientific foundations, clinical dental-hygiene services, and community health/research. Patient cases connect teaching points through fictional histories and explicitly supplied findings. The module titles are Dentovio's teaching organization; the official examination specification remains JCNDE's.¹

Practice with a clear purpose

• Tutor sessions: See explanations as you work.
• Timed sessions: Review explanations after the session.
• Focused review: Choose unanswered, incorrect or flagged items and revisit scheduled material.
• Saved learning: Resume practice and retain lesson completion in your account.
• Study planning: Set your examination date, available study days and daily minutes.

Practice scores describe performance on the questions you attempted. They are not JCNDE scaled scores or a prediction of passing. Repeated questions should be interpreted separately from a first attempt.²

Prepare for the specification that applies to you

JCNDE anticipates an NBDHE specification update in October 2026. Confirm the applicable version for your appointment with JCNDE. Dentovio offers explicit pre-update and announced post-update selections instead of assuming an exact transition day. Any simulation states its actual size; a full-length form is available only when the eligible unique inventory supports the selected specification.¹

What this course includes—and its limits

This is a reading and interactive practice course. It does not include an instructional video series, audio lessons, a diagnostic radiograph image bank, accredited continuing education, clinical licensure, an examination registration, or a pass guarantee. Teaching cases do not provide an individual patient's treatment plan.

Start with the free preparation guide and JCNDE's official preparation resources. Official samples remain separate from Dentovio's original inventory.³

Footnotes

1. A1 JCNDE, 2026 NBDHE Candidate Guide, printed pp.5–10. https://jcnde.ada.org/-/media/project/ada-organization/ada/jcnde/files/nbdhe_candidate_guide.pdf. Accessed 2026-09-08. ↩ ↩²

2. A5 JCNDE, 2025 NBDHE Technical Report, sections 15–17. https://jcnde.ada.org/-/media/project/ada-organization/ada/jcnde/files/nbdhe_technical_rpt.pdf. Accessed 2026-09-08. ↩

3. A3 JCNDE, NBDHE preparation tools. https://jcnde.ada.org/nbdhe/nbdhe-prepare. Accessed 2026-09-08. ↩