A student who wishes to treat diseases of the mouth may wish to study dentistry. Dentistry studies how to keep the teeth, gums, and other parts of the mouth healthy and how these parts interact with the body.

A certificate is an educational goal for many students who want to improve their visibility among aggressive job applicants. Certificates may help provide students with increased skills and experience in a number of diverse disciplines, such as business, finance, hospitality, leadership, and management.