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YOUR NBDHE STUDY COMPANION
NBDHE Study Center & Exam Guide
Prepare for the National Board Dental Hygiene Examination with a clear map of its two exam components, patient-case reasoning, current content specifications, and the November 2026 update.
MEET THE EXAM
What the NBDHE measures
The NBDHE assesses knowledge and judgment used in entry-level dental hygiene practice. It combines discipline-based questions with patient cases that may include histories, dental charts, radiographs, and clinical photographs.
Specification update: JCNDE lists updated NBDHE test specifications for implementation in November 2026. The 2026 Candidate Guide includes both pre-update and post-update content distributions. Match your study outline to your scheduled exam date.
CURRENT JCNDE EXAM INFORMATION
How the NBDHE is structured
Discipline-based component
Session One presents 200 questions across scientific foundations, clinical dental hygiene services, and community health or research principles.
Patient-case component
Session Two presents 150 questions across 12–15 dental hygiene cases. Patient histories, dental charts, radiographs, and clinical photographs may supply evidence for decisions.
One item at a time
Questions appear one at a time on screen. The official tutorial is optional. Practice interpreting the full patient record before choosing an action.
Time and score
The two question sessions provide 3 hours 30 minutes for 200 discipline-based items and 4 hours for 150 case-based items. The total appointment is scheduled for 9 hours, including the optional tutorial, breaks, and survey. The score report is pass or fail; the scale ranges from 49 to 99 and 75 is the passing score. The pass decision uses the overall score, not a separate section score.
Break rules and appointment procedures can change. Review the current JCNDE Candidate Guide and Pearson VUE instructions before test day.
BEFORE YOU APPLY
Check NBDHE eligibility and application steps
Current dental hygiene students
A student in a CODA-accredited program may qualify when the program director or designee certifies readiness across NBDHE disciplines.
Graduates and other applicants
Graduates of CODA-accredited programs submit proof of graduation. Graduates of certain nonaccredited U.S. or Canadian programs may qualify under additional equivalency and documentation rules.
Apply through JCNDE
Get or retrieve a DENTPIN, read the current Candidate Guide, submit the application and required eligibility documents, then wait for the eligibility email before scheduling with Pearson VUE.
Eligibility, fees, and licensure requirements are set by the relevant organizations and state boards. Confirm your own route on the official JCNDE page before applying.
YOUR CONTENT MAP · 2026 SPECIFICATIONS
Use the outline that matches your exam date
The exam remains 350 items: 200 discipline-based plus 150 case-based. JCNDE’s 2026 Candidate Guide gives separate distributions for administrations before and after the November 2026 update.
| Discipline-based area | Before November update | After November update |
|---|---|---|
| Scientific Basis for Dental Hygiene Practice | 61 items | 56 items |
| Provision of Clinical Dental Hygiene Services | 115 items | 124 items |
| Community Health / Research Principles | 24 items | Research Principles and Community Health: 20 items |
| Case-based component | 150 items | 150 items |
Scientific foundations
Review anatomy, physiology, biochemistry and nutrition, microbiology and immunology, pathology, pharmacology, and the listed science topics for your test date. The updated specifications call out local anesthesia.
Clinical services
Study patient assessment, radiography, care planning, periodontal disease management, preventive agents, supportive services, and professional responsibilities. The update clarifies categories and adds emerging technology topics.
Research and community health
Practice evaluating scientific literature, statistical concepts, research results, population needs, and community programs. Use the distribution for the version you will take.
The JCNDE describes the update as refinements that are not expected to substantially alter preparation. Review the official guide for the exact outline and implementation date.
PICK A DIRECTION
Choose a study route that fits your gaps
Start with an official sample or practice module. For each missed, guessed, or slow response, record the content area and the evidence you overlooked.
Map the blueprint
Use your exam-date version to plan time across discipline and case-based work.
Review the evidence
Connect patient history, charting, radiographs, photographs, and symptoms before selecting care.
Practice clinical judgment
Work through assessment, planning, prevention, periodontal care, and professional decisions.
Check your reasoning
Explain why an option fits, why alternatives do not, and which source or concept resolves the gap.
Do not spend all your review time on the largest section. Rotate through every blueprint area and maintain separate practice for the discipline-based and patient-case components.
A ROUTINE YOU CAN ADAPT
A four-week NBDHE study plan
Choose realistic study blocks and reserve time to review errors. Begin by confirming the test-date specifications and the application or appointment details that apply to you.
Read the matching JCNDE outline, take a short diagnostic, and list strengths and gaps across all three discipline areas and case work.
Review foundational science, patient histories, oral and periodontal assessment, radiographic principles, and image interpretation.
Practice individualized planning, infection control, emergency recognition, periodontal care, preventive agents, and professional responsibilities.
Complete timed mixed practice, review every guessed or missed response, revisit weak topics, and confirm test-day logistics.
Official NBDHE items and practice materials are protected. Use authorized practice tools and do not copy or share secure questions.
OFFICIAL EXAM INFORMATION · INDEPENDENT STUDY TOOLS
NBDHE practice tests and study resources
Use JCNDE materials for the current exam specifications and test-day rules. Independent practice can help you find topics to review; confirm format details with the official guide, especially around the November update.
Read the 2026 Candidate Guide
Check eligibility, the exam schedule, scoring, rules, and both pre-update and post-update specifications.
Use official sample questions
Review JCNDE sample questions and guidance on the exam’s item formats and patient information.
Practice in Pearson VUE
Explore the official tutorial and paid NBDHE practice modules or comprehensive test.
Try Mometrix practice
Use the independent NBDHE practice test as a diagnostic, then compare missed topics with your JCNDE outline version.
Review a study guide
Check current coverage, format notes, and edition details before choosing an independent review book.
Build quick recall
Use flashcards for short review sessions, then connect terms to an outline topic or clinical decision.
NBDHE®, JCNDE, and related marks belong to their respective owners. This independent study center is not affiliated with or endorsed by JCNDE, ADA, or Pearson VUE.
QUICK ANSWERS
NBDHE exam questions, answered
How many questions are on the NBDHE?
The 2026 Candidate Guide describes a 350-item exam: 200 discipline-based items and 150 case-based items.
How long is the NBDHE?
You have 7 hours and 30 minutes to answer questions. The full administration is scheduled for 9 hours including the optional tutorial, breaks, and survey.
What is the NBDHE passing score?
Results are reported as pass or fail. The current guide describes a 49–99 scale and a passing score of 75, based on overall performance.
What changes in November 2026?
JCNDE has announced updated test specifications. The exam remains 350 items, while the guide shows a revised distribution across the 200 discipline-based items. Check JCNDE for the implementation date that applies to your appointment.
How many patient cases are on the exam?
The guide describes 12–15 patient cases that together support 150 case-based items.
Which section should I study most?
For the pre-update distribution, clinical services has 115 of 200 discipline-based items. After the update, it has 124. Use the correct distribution for your exam date and keep all areas in your plan.
Who can apply for the NBDHE?
Eligibility depends on your dental hygiene education and JCNDE documentation requirements. Current students in CODA-accredited programs and graduates may qualify; some graduates of nonaccredited programs may apply under additional rules. Review the Candidate Guide.
Is this an official JCNDE website?
No. This is an independent study center. JCNDE controls the examination, eligibility, scoring, and candidate policies.
CHECK THE SOURCE
Official sources and update notes
Exam details are based on JCNDE’s 2026 Candidate Guide and NBDHE pages. Use the official guide version associated with your test appointment and confirm the November 2026 implementation date before scheduling.
- JCNDE NBDHE page — exam overview, updates, and application links.
- Prepare for the NBDHE — candidate guide, sample questions, tutorial, and preparation resources.
- 2026 NBDHE Candidate Guide (PDF) — content distributions, timing, scoring, eligibility, and policies.
- NBDHE results and scoring — official score-report guidance.
- Mometrix NBDHE practice test — independent practice and study guidance.
- Mometrix NBDHE study guide — current product details from the provider.
Reviewed October 15, 2026. JCNDE identifies a November 2026 test-specification update. Confirm current exam details, eligibility, fees, and scheduling with JCNDE. This study center is educational material and does not provide clinical advice or guarantee exam results.