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The NBDE Part I

At a Glance

The National Board Dental Examination Part I (NBDE I*) is only offered by computer at Prometric Testing Centers. Most students usually take Part I after they've completed two years of dental school. For more information about the NBDE I, visit the American Dental Association.

The administration of the test is divided into morning and afternoon sessions. Part I is a comprehensive exam with 400 multiple-choice items. Approximately 20% of the items will be grouped into testlets with interdisciplinary focus and clinical applications.

The test is entirely composed of multiple-choice questions, each with 3-5 possible answer choices. Questions are taken from a wide variety of topical areas, including Microbiology and Pathology (100 questions); Anatomic Sciences (100 questions); Biochemistry and Physiology (100 questions); and Dental Anatomy and Occlusion (100 questions). The National Board Dental Examination Specifications for Part I can be found here (pdf).

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