USA

National Board Dental Hygiene Examination (NBDHE)

600 questions

About this exam

The National Board Dental Hygiene Examination (NBDHE) is a national board exam for dental hygiene candidates in the United States. It assesses whether candidates can apply scientific knowledge and clinical judgment in situations relevant to dental hygiene practice. The NBDHE is commonly part of the requirements for dental hygiene licensure, but it does not by itself grant a license; state or jurisdiction requirements also apply. Candidates should confirm current eligibility and licensing steps with their dental hygiene program and the relevant state board.

The NBDHE includes discipline-based questions and patient case-based questions. Its content covers the scientific basis of dental hygiene, clinical dental hygiene services, and community health and research principles. Review areas include patient assessment and medical-dental history, oral anatomy, histology and embryology, head and neck anatomy, oral microbiology, and immunology. Preparation involves more than memorizing facts: candidates need to interpret patient information, connect foundational science to care decisions, and become comfortable reasoning through case scenarios.

How to prepare for the NBDHE

  1. Use the current NBDHE Candidate Guide and content outline from the Joint Commission on National Dental Examinations (JCNDE) to organize your study plan and verify exam policies.
  2. Review foundational topics such as medical-dental history, patient assessment, oral and head and neck anatomy, histology, embryology, microbiology, and immunology; link each topic to its relevance in dental hygiene care.
  3. Build timed study sessions around both individual subject questions and patient case scenarios. After each session, review explanations for missed answers and identify whether the gap was knowledge, interpretation, or time management.

FAQ

Who is eligible to take the NBDHE?

The NBDHE is intended for dental hygiene students and graduates who meet the examination eligibility requirements. Eligibility and application steps can depend on a candidate’s program and current JCNDE policies, so check the official Candidate Guide and confirm requirements with your program.

What is the format of the NBDHE?

The exam includes discipline-based questions and case-based questions that assess how candidates apply knowledge to patient situations. Consult the current JCNDE Candidate Guide for the latest details on exam structure, scheduling, and administration.

What subjects should I study for the NBDHE?

Study the scientific basis of dental hygiene, clinical dental hygiene services, and community health and research principles. Foundational review commonly includes patient assessment and medical-dental history, oral and head and neck anatomy, histology, embryology, oral microbiology, and immunology. Use the current JCNDE content outline to guide your priorities.