American Association of Orthodontists

Founded in 1900, the American Association of Orthodontists (AAO) is the world's oldest and largest dental specialty organization, headquartered in Creve Coeur, Missouri. The AAO represents nearly 19,000 orthodontist members across the United States, Canada, and internationally. The organization’s core mission is to advance the art and science of orthodontics through education, advocacy, and research. It offers resources for both orthodontists and patients, including certification programs, continuing education, and public awareness campaigns about the benefits of orthodontic care.

Notable affiliated individuals include its board-certified orthodontist members who are also often members of the American Dental Association. The AAO has achieved significant milestones, such as having more than half of its members board-certified, setting a high standard of care within the specialty. Its impact is profound in promoting best practices in orthodontics, enhancing patient care standards, and supporting the professional development of orthodontists globally.