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National Board Dental Hygiene Examination
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CONTENTS BREAKDOWN

The National Board Dental Hygiene Examination is a comprehensive examination comprised of 350 multiple-choice test items. Although performance on the examination is reported by means of one official score, the examination has two components.
 

The discipline-based Component A includes 200 items addressing three major areas:

  • Scientific Basis for Dental Hygiene Practice
  • Provision of Clinical Dental Hygiene Services
  • Community Health/Research Principles

Component B includes 150 case-based items that refer to 12 to 15 dental hygiene patient cases. These cases present information dealing with adult and child patients by means of patient histories, dental charts, radiographs, and sometimes intra- and extra-oral photographs. Each examination includes at least one case regarding patients of the following types: Geriatric, Adult-Periodontal, Pediatric, Special Needs, and Medically Compromised.


The case-based items address knowledge and skills required in:

  • Assessing patient characteristics
    Obtaining and interpreting radiographs
    Planning and managing dental hygiene care
    Performing periodontal procedures
    Using preventive agents
    Providing supportive treatment services
    Professional responsibility
The distribution of items in Component A is defined by the following outline. The number in brackets after each topic designates the number of questions assigned to this topic.

 
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