The ADEA AADSAS® Participating Dental Schools Required and Recommended Courses chart is a helpful resource for prospective dental school applicants to easily access required and recommended coursework. Traditionally, dental schools expect applicants to complete two semesters (three quarters) of biology, general chemistry, organic chemistry and physics. It’s important to know how dental schools differ on the additional classes they require, so we encourage students to thoroughly research each school they are interested in applying to for any additional prerequisites.