Welcome to the website of the Midwestern Society of Orthodontists!

The Midwestern Society of Orthodontists (MSO) is a constituent of the American Association of Orthodontists (AAO). We are comprised of approximately 1,380 members across the component states of Illinois, Iowa, Minnesota, Missouri, Nebraska, North Dakota, South Dakota and Wisconsin, as well as the Canadian province of Manitoba. Since 1939, the MSO has continuously strived to support the AAO mission by providing helpful resources, clear communication and strong leadership to component societies and individual members. 


Connect with your colleagues by "Liking" the



MSO 2017 Ad Interim
March 10 - St. Louis, MO

MSO 2017 Annual Session
with SWSO and GLAO

Sept. 14-17- New Orleans, LA

MSO 2018 Annual Session
Sept. 21-22 - Bloomington, MN

MSO 2019 Annual Session
October 25-26 - Branson, MO