This is what I found for you. Educational Requirements for Orthodontist Assistants: If you wish to pursue a career as an orthodontist assistant and have a high school diploma or its equivalent, consult the Commission on Dental Accreditation within the American Dental Association (ADA) to get a list of approved programs in dental assisting. A number of community colleges offer approved associate degree programs in dental assisting. Look for programs that offer special classes or programs in orthodontist assisting or options to pursue internships in an orthodontist’s office. Most orthodontist’s offices provide hands-on training to newly hired assistants, but previous training as an orthodontist assistant would naturally be attractive.