In most States, a candidate must graduate from a dental school accredited by the American Dental Association's Commission on Dental Accreditation, and pass written and practical examinations to qualify for a license. Candidates may fulfill the written part of the State licensing by passing the National Board Dental Examinations. Individual States or regional testing agencies give the written or practical examinations. Currently, about 17 States require dentists to obtain a specialty license before practicing as a specialist. Requirements include 2 to 4 years of postgraduate education and, in some cases, completion of a special State examination.
Most State licenses permit dentists to engage in both general and specialized practice.
Dentists who want to teach or do research usually spend an additional 2 to 5 years in advanced dental training, in programs operated by dental schools or hospitals. Dental schools require a minimum of 2 years of college-level predental education. However, most dental students have at least a bachelor's degree. Predental education emphasizes course work in the sciences. When selecting students, schools consider scores earned on the DAT, the applicants' grade point average, and information gathered through recommendations and interviews.