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 over 1,470 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.


Welcome from 2022-2023 President Nellie Kim-Weroha


On behalf of the Board of Directors, it’s my pleasure to welcome you to the Midwestern Society of Orthodontists (MSO). The MSO has a proud history of excellent leaders and dedicated members.

Please join me in thanking our Board, Delegation to the AAO, and representatives on AAO Councils, committees, and affiliate organizations for dedicating their time and providing diverse perspectives on your behalf. We welcome your involvement. If interested, please reach out to the MSO office.

Our 2023 Annual Session will be a unique experience as our first combined meeting with the Rocky Mountain Society of Orthodontists October 13-14 in my town of Rochester, Minnesota. Click here for more information on this doctor and staff lecture program with exhibits to be held at the Hilton Rochester Mayo Clinic Area.

I am honored to have the opportunity to serve as your President. We appreciate your membership and encourage those who are not yet members to join us in our effort to better our profession united.

Nellie Kim-Weroha, DDS, MSD

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