The number of years of study required to become a dentist varies depending on the country and the specific dental program. In the United States, for example, most dental programs require four years of undergraduate study, followed by four years of dental school.
The first two years of dental school are typically spent studying the basic sciences, such as anatomy, physiology, and biochemistry. The last two years of dental school are spent in clinical rotations, where students gain experience in diagnosing and treating patients under the supervision of licensed dentists.