Kaplan University, Herzing University and the University of Phoenix are good orthodontic assistant schools, according to Study.com. All of these institutions offer online coursework. The University of Phoenix also maintains locations in several states, including Colorado, Florida, Michigan, Texas and Arizona.
Orthodontic assistants typically function more independently than dental assistants. Dental assistants perform tasks such as greeting patients and assisting dentists with procedures. In comparison, the duties of an orthodontic assistant include collecting diagnostic information, sterilizing equipment and creating molds of patients' teeth. Some orthodontic assistants also create retainers and custom mouthguards. They also often help orthodontists install and remove braces.