Advancing Excellence in Orthodontics

Inspired by Dr. Charles H. Tweed’s legacy of skill, ethics, and innovation

2026 Biennial Meeting

Our Biennial Meeting is coming up soon - get the details now!

Welcome to The Charles H. Tweed International Foundation

Facial Esthetics. Health, Function & Stability. Treatment in Harmony With Growth.

Welcome to the Charles H. Tweed International Foundation. We extend a sincere invitation to join the Foundation in its pursuit of excellence in orthodontic diagnosis and treatment.

The mission of the Charles H. Tweed International Foundation is to promote excellence in orthodontic treatment consistent with the personal traditions, professional ethics, and orthodontic philosophy of Dr. Charles H. Tweed.

“The world should be a beautiful place for a child to live. If he is handicapped by facial deformity that is marring his happiness, we should make every effort to restore that happiness. To say that there is no use trying to help a patient because he has a certain facial type, or he has a facial pattern with serious abnormal deviations, is not courageous. We must strive for maximum harmony and balance as near to normal as conditions will allow.”

The Tweed Study Course™

Since 1941, this intensive course has empowered professionals with unmatched knowledge and hands-on training.

The Tweed Study Course™ is an intensive seven-day experience in advanced edgewise mechanics, differential diagnosis, and the Tweed/Merrifield force system. Each participant of the Course is given individual instruction in all of these skills/disciplines on a daily basis.

Tweed Foundation Membership

Membership is open to qualified orthodontists and students

Membership in the Charles H. Tweed International Foundation is available to all orthodontists or orthodontic graduate students who meet the following requirements:

  1. The person must have successfully completed the Tweed Study Course™.
  2. The person must be a member of or eligible for membership in
    his/her country’s W.F.O. affiliated orthodontic association.

Collaborate. Innovate. Elevate.

Connect with peers to improve treatments and transform lives with our Orthodontic Forum, exclusive for Tweed Foundation members

Our forum is a collaborative space dedicated to advancing knowledge, sharing expertise, and supporting professional growth within the orthodontic community.

Stay Connected, Stay Informed

Access newsletters, renew your membership, and get meeting information

In the Loop

Check out the member newsletter for important news and community updates.

Pay Dues Online

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Biennial Meeting

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