Also obtain medical records, order dental supplies and materials. To be a dentist you must specialize in sciences such as biology, anatomy, anesthesia, periodontology and chemistry. Radiology and the study of oral disease and health are also included (Dental Assistant Source 4). When you take these courses they should increase your chances of being accepted. College students usually take the DAT Test (Dental Acceptance Test) during their first year. When applying to dental school, it can be competitive (Dentist Source 11). Dental schools use the DAT test along with grade point average and recommendations. Dental schools expect students to practice working with patients in the clinic under the supervision of a licensed dentist (dentist source 11). If you are a high school student who will become a dentist when you graduate, you need to take science classes such as physics, chemistry, biology, and math (Source Dentist