In addition, prosthodontics , the construction of artificial teeth or dentures, and public health dentistry , involving the prevention and control of dental disease, are also specialty areas. Most dentists have their own private practice. Some dentists do research, teach, or hold positions in dental schools. Others work in hospitals and clinics. During the first year of two of practice, dentists often earn little more than the minimum needed to cover expenses, but their earnings usually rise rapidly as their practice develops.
Specialists generally earn considerably more than general practitioners.
Four out of five of the students entering dental schools have either a bachelor's or master's degree. Dental school generally lasts three to five years. During the last two years, the student gains practical experience by treating patients, usually in dental clinics. All 50 states require dentists to be licensed. To qualify for a license, a candidate must graduate from a dental school approved by the Commission on Dental Accreditation and pass written practical examinations.