ADEX Practice Test
Updated for August 2026Free ADEX Dental Hygiene Question and Answers
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The ADEX Dental Hygiene Exam (ADEX) is a comprehensive, computerized exam overseen by the Commission on Dental Competency Assessments (CDCA). The ADEX evaluates the dental hygiene knowledge and skills of candidates seeking licensure to practice dental hygiene. The exam consists of nine sections covering anatomy, physiology, pathology, and medical conditions related to dental hygiene; nutrition; preventive dentistry; periodontics; clinical procedures; management principles and ethics; radiography interpretation; instrument sharpening, and selection/fabrication/placement technique. Each section includes several questions such as multiple choice, true/false, or fill-in-the-blank items.
ADEX stands for the American Dental Hygiene Examination board.
If you are preparing for other dental licensing examinations, our ADC practice test covers similar clinical competency areas and can help reinforce your knowledge of restorative and periodontal procedures.
Students planning to pursue specialty programs after passing the ADEX should also consider taking the ADAT practice test to evaluate their readiness for advanced dental education admissions.
ADEX Practice Test Questions
Prepare for the ADEX - Dental Hygiene Exam exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
ADEX Dental Biomaterials
ADEX Exam Questions covering Dental Biomaterials. Master ADEX Test concepts for certification prep.
ADEX Dental Hygiene Dental Biomaterials
Free ADEX Practice Test featuring Dental Hygiene Dental Biomaterials. Improve your ADEX Exam score with mock test prep.
ADEX Dental Hygiene Dental Hygiene Process...
ADEX Mock Exam on Dental Hygiene Dental Hygiene Process of Care. ADEX Study Guide questions to pass on your first try.
ADEX Dental Hygiene Infection Control and ...
ADEX Test Prep for Dental Hygiene Infection Control and Safety. Practice ADEX Quiz questions and boost your score.
ADEX Dental Hygiene Infection Control Prin...
ADEX Questions and Answers on Dental Hygiene Infection Control Principles. Free ADEX practice for exam readiness.
ADEX Dental Hygiene Management of Medical ...
ADEX Mock Test covering Dental Hygiene Management of Medical Emergencies. Online ADEX Test practice with instant feedback.
ADEX Dental Hygiene Managing Medical Emerg...
Free ADEX Quiz on Dental Hygiene Managing Medical Emergencies. ADEX Exam prep questions with detailed explanations.
ADEX Dental Hygiene Patient Assessment and...
ADEX Practice Questions for Dental Hygiene Patient Assessment and Diagnosis. Build confidence for your ADEX certification exam.
ADEX Dental Hygiene Periodontal Concepts
ADEX Test Online for Dental Hygiene Periodontal Concepts. Free practice with instant results and feedback.
ADEX Dental Hygiene Periodontal Instrument...
ADEX Study Material on Dental Hygiene Periodontal Instrumentation and Care. Prepare effectively with real exam-style questions.
ADEX Dental Hygiene Process of Care
Free ADEX Test covering Dental Hygiene Process of Care. Practice and track your ADEX exam readiness.
ADEX Dental Hygiene Radiographic Interpret...
ADEX Exam Questions covering Dental Hygiene Radiographic Interpretation. Master ADEX Test concepts for certification prep.
ADEX Head and Neck Anatomy
Free ADEX Practice Test featuring Head and Neck Anatomy. Improve your ADEX Exam score with mock test prep.
ADEX Infection Control and Safety
ADEX Mock Exam on Infection Control and Safety. ADEX Study Guide questions to pass on your first try.
ADEX Infection Control Principles
ADEX Test Prep for Infection Control Principles. Practice ADEX Quiz questions and boost your score.
ADEX Management of Medical Emergencies
ADEX Questions and Answers on Management of Medical Emergencies. Free ADEX practice for exam readiness.
ADEX Managing Medical Emergencies
ADEX Mock Test covering Managing Medical Emergencies. Online ADEX Test practice with instant feedback.
ADEX Nutrition and Oral Health
Free ADEX Quiz on Nutrition and Oral Health. ADEX Exam prep questions with detailed explanations.
ADEX Patient Assessment and Diagnosis
ADEX Practice Questions for Patient Assessment and Diagnosis. Build confidence for your ADEX certification exam.
ADEX Periodontal Concepts
ADEX Test Online for Periodontal Concepts. Free practice with instant results and feedback.
ADEX Periodontal Instrumentation and Care
ADEX Study Material on Periodontal Instrumentation and Care. Prepare effectively with real exam-style questions.
ADEX Pharmacology and Pain Management
Free ADEX Test covering Pharmacology and Pain Management. Practice and track your ADEX exam readiness.
ADEX Radiographic Interpretation
ADEX Exam Questions covering Radiographic Interpretation. Master ADEX Test concepts for certification prep.
ADEX Trivia
Free ADEX Practice Test featuring Trivia. Improve your ADEX Exam score with mock test prep.
ADEX Dental Hygiene MCQ
ADEX Mock Exam on Dental Hygiene MCQ. ADEX Study Guide questions to pass on your first try.
ADEX Key Concepts
What is the passing score for the ADEX exam?
Most ADEX exams require 70-75% to pass. Check the official exam guide for exact requirements.
How long is the ADEX exam?
The ADEX exam typically allows 2-3 hours. Time management is critical for success.
How should I prepare for the ADEX exam?
Start with a diagnostic test, create a 4-8 week study plan, and take at least 3 full practice exams.
What topics does the ADEX exam cover?
The ADEX exam covers multiple domains. Review the official content outline for the complete list.
ADEX Dental Hygiene Exam Price
The adex dental hygiene exam is a national licensure examination administered by the Commission on Dental Competency Assessments (CDCA). It is required for hygienists to practice in 46 states. The ADEX exam is a two-hour computer simulated clinical exam that tests 100 multiple-choice questions. It uses simulated patients, radiographs, study model images and laboratory data to test your knowledge of dental hygiene.
The NBDHE is the standard examination for licensure of dental hygienists in most states. It is an evaluation of the basic dental hygiene science, clinical practices and responsibilities, community health and research applications.
The CITA - ADEX examination consists of two components: the Computer Simulated Clinical Examination and the Patient Treatment Clinical Exam. Each component requires a passing score of 75% or greater.
Candidates for licensure in this state must pass a written and clinical examination before they can apply for a license. The written exams are offered on-line and are in two subject areas: infection control/sterilization and North Carolina jurisprudence. The ADEX or CITA clinical dental hygiene exam must also be passed.
Once you obtain your dental hygiene license, you will need to renew it on a yearly basis. The process is similar to other types of professional licenses. You will need to submit a renewal fee, a statement that you have completed the required continuing education, a CPR card and other documents as needed.
ADEX: Pros and Cons
- +adex — aDEX exam preparation strengthens your knowledge across all domains
- +Passing the exam proves competency to employers and clients
- +Study materials and practice tests are widely available
- +Exam-based credentials are portable across states and employers
- +Clear exam objectives help focus your study plan effectively
- −Exam anxiety can affect performance — practice tests help reduce it
- −Registration fees are non-refundable if you miss your test date
- −Limited retake opportunities may apply with waiting periods
- −Exam content updates periodically — use current study materials
- −Testing center availability may require advance scheduling
About the Author
Dentist & Dental Licensing Exam Specialist
University of Michigan School of DentistryDr. Patricia Chen is a licensed dentist with a DDS and a Master of Science in Periodontics from the University of Michigan School of Dentistry. She has 14 years of clinical practice and academic instruction experience, specializing in helping dental school graduates prepare for the NBDE, INBDE, regional clinical boards, and dental hygiene licensure examinations.
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