Dental Hygienist Education. Dental hygienists usually need a minimum of an associate degree, although some may be educated at the baccalaureate or master's level. The more advanced degrees are needed to perform research, teach, or practice in public or school health programs.ental hygienists usually need a minimum of an associate degree, although some may be educated at the baccalaureate or master's level. The more advanced degrees are needed to perform research, teach, or practice in public or school health programs.