College of Dentistry Faculty Named Director of The American Board of Orthodontics

Published: Tuesday, August 22, 2023

Dr. Onur Kadioglu Appointed to the Board of Directors of The American Board of Orthodontics Representing the Southwestern Society of Orthodontists

Onur Kadioglu, D.D.S., M.S., of Oklahoma City, Okla., has been appointed to the board of directors American Board of Orthodontics (ABO) as the representative of the Southwestern Society of Orthodontists. The appointment runs through the May 2024 American Association of Orthodontists (AAO) Annual Session, at which time Dr. Kadioglu will stand for approval by the House of Delegates.

The ABO directors are responsible for establishing policy with regard to the board certification of specialists in orthodontics. Each ABO director represents one of the eight constituent organizations of the AAO and serves an eight-year term, which culminates in the position of president. Dr. Kadioglu will become president of the ABO in the 2030-2031 year.

He succeeds Stephen K. McCullough, D.D.S., M.S., of Yukon, Okla., as SWSO representative on the board.

“As the president on the American Board of Orthodontics it is my pleasure to welcome Dr. Onur Kadioglu as the new ABO director representing SWSO,” said Timothy Trulove, D.M.D., M.S., 2023-2024 president of the ABO. “I would like to thank Dr. Kadioglu for accepting this position and I would also like to thank Dr. McCullough for his distinguished service to the ABO. Dr. McCullough is the consummate professional who represented the SWSO with distinction and grace and he will be greatly missed by his fellow directors and friends at the ABO.”

Dr. Kadioglu is associate professor, Ram S. Nanda Endowed Chair, and the head of the Division of Orthodontics at the University of Oklahoma Health Sciences Center. He has served on the faculty at the university since 2008 and became program head and Ram S. Nanda Endowed Chair in 2020. He also maintains a private practice with Orthodontic Specialists of Oklahoma.

He received his certificate in orthodontics and Master’s degree from the University of Oklahoma. His dental degree is from Istanbul University in his native Turkey. He obtained ABO certification in 2011 and was recertified in 2021.

Active in various professional organizations, Dr. Kadioglu has served on the AAO Council on Scientific Affairs. He is president-elect of SWSO and also served as their editor for eight years. He is an instructor for the Charles H. Tweed Education and Research Foundation and an examiner for the ABO. Dr. Kadioglu is a member of the editorial review boards of the American Journal of Orthodontics and Dentofacial Orthopedics and the Angle Orthodontist. He has been inducted into both the International College of Dentists and the American College of Dentists.

His research interests include temporary anchorage devices, 3D technologies and various other areas of clinical translational research.

On being elected to the ABO board, Dr. Kadioglu said, “It is with utmost honor and excitement that I accept this position as a director for the American Board of Orthodontics. This fine opportunity will allow me to continue to serve our profession and the ABO at a new level. This humbling experience comes with significant responsibility, and I look forward to collaborating and learning from my distinguished fellow directors. I will be committed to uphold the ABO’s strategic objectives while adapting to the evolving needs of our wonderful profession through devotion to promoting the highest standard of care and excellence in orthodontics.”

Dr. McCullough, who has served as an ABO director representing SWSO since 2019, operated a private practice in orthodontics in Yukon, Okla. until his retirement in 2020. He currently is a clinical professor and graduate program director in the Department of Orthodontics at the University of Oklahoma Health Sciences Center. He holds his master’s degree in orthodontics from the University of Michigan and obtained his dental and undergraduate degrees from the University of Oklahoma.

Certified by the ABO since 1990, Dr. McCullough is a member of the College of Diplomates of the ABO. He has been an examiner for the ABO since 2007. Dr. McCullough received the Earl S. and Wilma S. Shepard Distinguished Service Award from the ABO in 2016.

“It has been an honor and a privilege to serve with a distinguished group of leaders on the ABO board of directors,” Dr. McCullough said. “Through board certification, the ABO plays a critical role in promoting the highest standards in orthodontics.”


Submitted by the American Board of Orthodontics

About the ABO

The ABO is the global leader in orthodontic board certification and sets the standards of care for excellence in orthodontics and dentofacial orthopedics. The ABO’s mission is to elevate the quality of orthodontic care for the public by promoting excellence through certification, education and professional collaboration. Founded in 1929 as the first specialty board in dentistry, The American Board of Orthodontics is partnered with the American Association of Orthodontists and is recognized by the National Commission on Recognition of Dental Specialties and Certifying Boards as the national certifying board for orthodontics and dentofacial orthopedics. To learn more, visit

The certificate issued by the ABO signifies a certification of attainment. It does not confer any legal qualification, privilege, or license to practice orthodontics. It is not a professional or academic degree. In essence, board certification is a process by which an individual orthodontist is voluntarily examined by his/her peers as to orthodontic knowledge and clinical skills. The successful completion of the examination process is a demonstration to the dental profession and the general public of the orthodontist's pursuit of continued proficiency and excellence in orthodontics.


The OU College of Dentistry is home to the state’s only doctor of dental surgery program and baccalaureate degree program in dental hygiene. More than 70 percent of the state of Oklahoma’s dentists are graduates of the OU College of Dentistry. The college provides general dental care and specialty care to Oklahomans through student, resident and faculty practice clinics. The OU College of Dentistry has established a reputation of training its students to provide the highest quality of clinical care available.