Training, Other Qualifications, and Advancement All 50 States and the District of Columbia require dentists to be licensed. To qualify for a license 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. Candidates may fulfill the written part of the State licensing by passing the National Board Dental Examinations. Currently, about 15 States require dentists to obtain a specialty license before practicing as a specialist. Requirements include 2 to 4 years of post graduate 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 includes courses in both the sciences and humanities. Dental school generally lasts 4 academic years.