Dental exam prep

CDCA Dental Hygiene ADEX Written Practice Test 2026-2027 and Free Sample Questions

2026-2027 exam practice page

CDCA Dental Hygiene ADEX Written practice test students taking an online exam with rationales and sample questions
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CDCA
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60 questions / 90 min
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CDCA Dental Hygiene ADEX Written

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Question 1 Periodontology

Question 1: Periodontology

A clinical examination reveals a periodontal pocket depth of 6 millimeters with bleeding on probing and radiographic evidence of bone loss. This presentation is most consistent with which condition?

Question 2 Oral pathology

Question 2: Oral pathology

A patient presents with a white plaque on the buccal mucosa that cannot be wiped off and cannot be attributed to any other diagnosable condition. This clinical finding is best described as which of the following?

Question 3 Pharmacology

Question 3: Pharmacology

Before treating a patient, the dental hygienist reviews the medication list and notes the patient takes warfarin. Which laboratory value is most important to assess the patient bleeding risk?

Question 4 Dental anatomy

Question 4: Dental anatomy

The hard, mineralized tissue that covers the anatomic crown of a tooth and is the hardest substance in the human body is which of the following?

Question 5 Instrumentation

Question 5: Instrumentation

When using a periodontal probe to measure pocket depth, the hygienist measures the distance from which two reference points?

Question 6 Radiography

Question 6: Radiography

Which intraoral radiographic technique is most useful for detecting interproximal caries and evaluating the height of the alveolar bone crest?

Question 7 Patient care and ethics

Question 7: Patient care and ethics

A patient with a complex medical history needs care, and the hygienist must obtain informed consent. Informed consent requires which of the following?

Question 8 Periodontology

Question 8: Periodontology

Calculus that is located coronal to the gingival margin and is visible on the clinical crown is referred to as which of the following?

Question 9 Pharmacology

Question 9: Pharmacology

A local anesthetic agent commonly used in dentistry frequently contains epinephrine. The primary purpose of adding epinephrine to a local anesthetic is to do which of the following?

Question 10 Oral pathology

Question 10: Oral pathology

A patient reports a painful, shallow, round ulcer with a yellowish-gray center and a red halo on the nonkeratinized mucosa of the lip. This presentation is most consistent with which lesion?

Question 11 Dental materials

Question 11: Dental materials

Fluoride varnish is applied to teeth primarily to achieve which of the following?

Question 12 Patient assessment

Question 12: Patient assessment

During an extraoral examination, the hygienist palpates the patient lymph nodes. The palpation of submandibular lymph nodes is intended primarily to detect which of the following?

Question 13 Nutrition and oral health

Question 13: Nutrition and oral health

Frequent consumption of fermentable carbohydrates between meals increases caries risk primarily because it does which of the following?

Question 14 Periodontology

Question 14: Periodontology

The primary etiologic factor in the initiation of gingivitis is which of the following?

Question 15 Medical emergencies

Question 15: Medical emergencies

A patient in the dental chair suddenly becomes pale, sweaty, and lightheaded and then briefly loses consciousness. The most likely cause and appropriate immediate response is which of the following?

Question 16 Oral pathology

Question 16: Oral pathology

A patient who uses smokeless tobacco shows a white, wrinkled, leathery lesion in the mucobuccal fold where the tobacco is held. This lesion is best described as which of the following?

Question 17 Instrumentation

Question 17: Instrumentation

When adapting a sickle scaler to remove supragingival calculus, the working end of the instrument should be designed for use primarily on which surfaces?

Question 18 Patient care

Question 18: Patient care

A patient with a history of a prosthetic heart valve may require antibiotic premedication before certain dental procedures. This premedication is intended to prevent which condition?

Question 19 Dental hygiene process of care

Question 19: Dental hygiene process of care

Within the dental hygiene process of care, the step in which the hygienist identifies the patient unmet needs and problems based on collected data is known as which of the following?

Question 20 Periodontology

Question 20: Periodontology

Furcation involvement refers to which of the following?

Question 1 of 20
About this practice test

What this 2026-2027 CDCA Dental Hygiene ADEX Written Practice Test covers

This page currently provides a free diagnostic sample. The paid bank is not available during editorial and source review.

60 of 300 paid questions are currently stored. Reopening requires 300 unique questions plus reviewed answers, rationales, analogies, sources, and study links.

Work through up to 60 CDCA-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 CDCA Dental Hygiene ADEX Written than a generic flashcard dump.

Prepare for the CDCA Dental Hygiene ADEX Written with realistic CDCA 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 CDCA Dental Hygiene ADEX Written 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 CDCA-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 CDCA Dental Hygiene ADEX Written 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 CDCA Dental Hygiene ADEX Written 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 CDCA Dental Hygiene ADEX Written practice test, CDCA Dental Hygiene ADEX Written practice questions, CDCA Dental Hygiene ADEX Written free practice test, CDCA Dental Hygiene ADEX Written study guide, CDCA Dental Hygiene ADEX Written infection control questions, CDCA Dental Hygiene ADEX Written instrument selection review. That is why the free sample gives you 10 questions first and the full version goes deeper into the tested patterns.

Frequently asked questions

Is paid access currently available for this exam?

No. Paid checkout is paused while the bank contains 60 of the required 300 questions and completes editorial, rationale, source, and duplication review.

Can I still use the free sample?

Yes. The free sample remains available so you can practice and evaluate the current question style without purchasing an incomplete bank.

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