[header] How to become a dental hygienist [title] Complete your high school studies. [step] Most dental hygiene programs require that you possess a high school diploma or general educational development (ged) certificate before applying. While in high school try to take a variety of science classes, such as biology. 
Studying a foreign language may make it easier to interact with your future patients. [substeps] In your senior year, sign up to take the act or sat exams.