Angle School of Orthodontia was the first school of orthodontics in the world, established by Edward Angle in 1899. The school taught its students orthodontics over a period of 3–6 weeks. The school graduated 183 students until it closed in 1927. Among the graduates, 25 students became presidents of the American Association of Orthodontists, 11 students became head of orthodontic departments and three students became dental school deans.