Dental exam prep

Dental Hygiene National Board practice test

2026-2027 exam practice page

6 practice questions

Answers and rationales included. Switch between Exam and Study modes.

New here? Create your account during checkout. After successful payment, open this exam in My Exams.

Try 20 free sample questions first
Dental Hygiene National Board practice test students taking an online exam with rationales and sample questions
Dental practice image for students preparing with 6-question bank with 20 sample questions before checkout.

Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

Provider
NBDHE
Format
6 questions / 90 min
Preview
20 questions
Full bank
6 practice questions

Interactive sample

Try 20 free Dental Hygiene National Board questions for 2026-2027 prep.

Answer the preview, check the explanations, and unlock the full bank only if it helps.

Interactive Practice Test

Dental Hygiene National Board

20 questions on this page 70% passing score 6 question bank
Practice mode Choose how you want to work through this set.

Exam mode keeps the timer running and shows review after submit. Study mode pauses the timer and lets you check each answer as you go.

Free trial mode: You are previewing 20 separate sample questions. Unlock the full bank to get 6 full-access questions, answer-level rationales and your complete score report.
Question progress Question 1 of 20
Timer
--:--

Autosaves until submit.

Done 0
Left 20
Question map Timer --:--

Question 1 Oral Anatomy

Question 1: Oral Anatomy

The hardest substance in the human body is:

Question 2 Periodontology

Question 2: Periodontology

A periodontal probe is used to measure:

Question 3 Radiography

Question 3: Radiography

The primary purpose of a lead apron during dental radiography is to:

Question 4 Microbiology

Question 4: Microbiology

The primary causative bacterium of dental caries is:

Question 5 Local Anesthesia

Question 5: Local Anesthesia

The most commonly used vasoconstrictor added to local anesthetics in dentistry is:

Question 6 Instrumentation

Question 6: Instrumentation

When using a universal curette, the working end is:

Question 7 Periodontology

Question 7: Periodontology

A patient with healthy periodontium typically has sulcus depths of:

Question 8 Dental Materials

Question 8: Dental Materials

Fluoride varnish is applied to teeth primarily to:

Question 9 Oral Pathology

Question 9: Oral Pathology

Aphthous ulcers (canker sores) are typically:

Question 10 Radiography

Question 10: Radiography

Cone cut on a radiograph is caused by:

Question 11 Pharmacology

Question 11: Pharmacology

Tetracycline is contraindicated in children under 8 years old primarily because it can cause:

Question 12 Patient Assessment

Question 12: Patient Assessment

When a patient reports a history of recent myocardial infarction within the past 6 months, elective dental treatment should be:

Question 13 Infection Control

Question 13: Infection Control

Standard precautions in dental practice require:

Question 14 Tooth Morphology

Question 14: Tooth Morphology

The maxillary first molar typically has how many roots?

Question 15 Pharmacology

Question 15: Pharmacology

Which medication class commonly causes gingival overgrowth as a side effect?

Question 16 Nutrition

Question 16: Nutrition

Which nutritional deficiency classically presents with bleeding, swollen gums and impaired wound healing?

Question 17 Dental Materials

Question 17: Dental Materials

Pit and fissure sealants are most beneficial when applied to:

Question 18 Health Promotion

Question 18: Health Promotion

The most effective single behavior for caries prevention is:

Question 19 Oral Pathology

Question 19: Oral Pathology

Leukoplakia is best described as:

Question 20 Radiography

Question 20: Radiography

ALARA stands for:

Question 1 of 20

Upgrade for full exam access

Unlock the full Dental Hygiene National Board prep pack

Purchase the current practice bank at the question count listed above, then return to this page for exam mode, study mode and answer-by-answer review.

Unlock Full Exam $9.97
About this practice test

What this 2026-2027 Dental Hygiene National Board Practice Test covers

Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

Practice material can include variations on the same concept. It is not an official exam or a guarantee of a passing score. Confirm important facts against current authoritative sources.

Work through up to 60 NBDHE-style questions built around infection control, instrument selection, and the wording patterns students usually miss on the first read.
Use answer-by-answer rationales to learn why the correct option wins and why weaker distractors fail in Dental exam situations.
Review 3 real-world analogies, topic article cards, and source checks after each question so patient communication and charting feel easier to recognize under pressure.
Build timing, confidence, and recall with scenario-based practice that feels closer to the real Dental Hygiene National Board than a generic flashcard dump.

Prepare for the Dental Hygiene National Board with realistic NBDHE practice questions, timed review, detailed rationales, and real-world analogies that make harder Dental concepts easier to remember.

This practice test is designed for students and professionals preparing for Dental Hygiene National Board who want stronger exam-day confidence, better explanation quality, and more useful answer review than a generic test bank.

Focus areas include infection control, instrument selection, patient communication, charting, along with scenario-based judgment, careful review of why distractors are less correct, and real-world analogies that help the key ideas stick.

What you will practice on this page

  • Work through up to 60 NBDHE-style questions built around infection control, instrument selection, and the wording patterns students usually miss on the first read.
  • Use answer-by-answer rationales to learn why the correct option wins and why weaker distractors fail in Dental exam situations.
  • Review 3 real-world analogies, topic article cards, and source checks after each question so patient communication and charting feel easier to recognize under pressure.
  • Build timing, confidence, and recall with scenario-based practice that feels closer to the real Dental Hygiene National Board than a generic flashcard quiz.

How to use this exam to study smarter

  1. Start with the 20-question free sample to spot whether infection control or instrument selection is slowing you down before you buy the full exam.
  2. After each block, review every rationale and the 3 real-world analogies, topic article cards, and source checks so the tested pattern behind patient communication becomes easier to remember.
  3. Retake the full Dental Hygiene National Board practice test in timed mode and focus on cleaner decision-making, not just memorizing the last answer.

Students often land on this page after searching for terms like Dental Hygiene National Board practice test, Dental Hygiene National Board practice questions, Dental Hygiene National Board free practice test, Dental Hygiene National Board study guide, NBDHE Dental Hygiene National Board practice test, Dental Hygiene National Board infection control questions. That is why the free sample gives you 10 questions first and the full version goes deeper into the tested patterns.

Frequently asked questions

What does this purchase include?

Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

How do I access my purchase?

After successful payment, sign in with your checkout account and open the exam from your account. You can use exam mode and study mode with answer rationales.

Is this an official exam or a passing-score guarantee?

No. This is independent practice material. Use current official exam objectives and authoritative references alongside it.

Question-linked study articles

Study articles that support Dental Hygiene National Board prep

These guides come from this exam's question topics. Use them after a missed question to review the concept, answer reasoning, distractors, and sources.

6 paid questions $9.97 Buy access
Skip to exam questions