Directors and Staff

The American Board of Orthodontics is managed by eight directors. The directors represent the eight regions of the United States and Canada that comprise the constituent organizations of the American Association of Orthodontists.

Dr. Barry S. Briss
Barry S. Briss
Dr. Barry S. Briss is a representative of the Northeastern Society of Orthodontists and resides in Brookline, Massachusetts. He is Professor and Chairman of the Department of Orthodontics at Tufts University School of Dental Medicine in Boston. Dr. Briss serves on the Technology and Clinical Examination Committees. In addition, he is a liaison to the Council on Dental Education and Licensure, the American Association of Dental Boards and the Graduate Orthodontic Resident Program.
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Dr. Scott A. Jamieson
Scott A. Jamieson
Dr. Scott A. Jamieson is a representative of the Great Lakes Association of Orthodontists and resides in Marquette, Michigan. He is Adjunct Assistant Professor at Marquette University School of Dentistry. Dr. Jamieson serves as chair of the Clinical Examination and History/Archives Committees. In addition, he is a liaison to the Council on Dental Education and Licensure and Commission on Dental Accreditation Site Visitors. Dr. Jamieson will become ABO President in May of 2012.
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Dr. Marvin C. (Buddy) Kastrop
Marvin C. Kastrop
Dr. Marvin C. (Buddy) Kastrop is a representative of the Rocky Mountain Society of Orthodontists and resides in Billings, Montana. He is in full time practice. Dr. Kastrop serves as chair of the Legal and Public Relations Committees and is a member of the Clinical Examination Committee. In addition, he is a liaison to the American Association of Dental Boards and the Council on Dental Education and Licensure. Dr. Kastrop will become President in May 2013.
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Dr. Paul T. Castelein
Paul T. Castelein
Dr. Paul T. Castelein is a representative of the Midwestern Society of Orthodontists and resides in Princeton, Illinois. He is in full time practice. Dr. Castelein serves as chair of the Finance/Investment Committee and is a member of the Clinical Examination, Legal and Public Relations Committees.
Dr. Castelein will become the ABO President in May of 2014.
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Dr. Eladio DeLeon, Jr.
Eladio DeLeon, Jr.
Dr. Eladio DeLeon, Jr. is a representative of the Southern Association of Orthodontists and resides in Augusta, Georgia. He is Goldstein Chair of Orthodontics and Program Director of the Department of Orthodontics at Georgia Health Sciences University. Dr. DeLeon serves as chair of the Written Examination Committee and is a member of the Technology Committee. In addition, he is a liaison to the College of Diplomates of the ABO and the AAO New/Younger Members Committee and serves on the Orthodontic Review Committee for the ADA Commission on Dental Accreditation. Dr. DeLeon will become the ABO President in May of 2015.
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Dr. Steven A. Dugoni
Steven A. Dugoni
Dr. Steven A. Dugoni is a representative of the Pacific Coast Society of Orthodontists and resides in South San Francisco, California. He is in full time practice and is Adjunct Associate Clinical Professor at the University of the Pacific School of Dentistry. Dr. Dugoni serves as chair of the Technology Committee and is a member of the Written Examination Committee. In addition, he is a liaison to the College of Diplomates of the ABO, the ADA Standards Committee on Dental Informatics and serves on the Orthodontic Review Committee for the ADA Commission on Dental Accreditation. Dr. Dugoni will become the ABO President in May of 2016.
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Dr. Chun-Hsi Chung
Chun-Hsi Chung
Dr. Chun-Hsi Chung is a representative of the Middle Atlantic Society of Orthodontists and resides in Bryn Mawr, Pennsylvania. He is Interim Chair of Orthodontics and Program Director of the Department of Orthodontics at the University of Pennsylvania School of Medicine in Philadelphia. Dr. Chung serves on the Written Examination and Legal Committees. In addition, he is a liaison to the AAO Council on Orthodontic Education and the American Journal of Orthodontics and Dentofacial Orthopedics. Dr. Chung will become the ABO President in May of 2017.
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Dr. Larry P. Tadlock
Larry P. Tadlock
Dr. Larry P. Tadlock is a representative of the Southwestern Society of Orthodontists and resides in Keller, Texas. He is in full time practice and is Associate Clinical Professor at Baylor College of Dentistry. Dr. Tadlock serves on the Clinical Examination, Public Relations and History/Archives Committees. In addition, he is a liaison to the College of Diplomates of the ABO and the AAO Council on Orthodontic Education. Dr. Tadlock will become the ABO President in May of 2018.
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Dr. Jeryl D. English
Jeryl D. English
Dr. Jeryl D. English is a representative of the Southwestern Society of Orthodontists and resides in Pearland, Texas. He is the Chair and Program Director of the Department of Orthodontics at the University of Texas Dental Branch at Houston. Dr. English serves on the Written Examination Committee.
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Past Directors of the ABO
Executive Secretary Christine L. Eisenmayer
Executive Director Emeritus George D. Selfridge, DDS, MS
Educational Consultant Richard M. Diemer, DDS, Ph.D.
Written Examination Coordinator Rhonda Legge
Operations Manager Prudy Yerkes
Diplomate Services Pamela S. Walker
Meeting Planner/Public Relations Melissa Brydels
Administrative Assistant/Reception Deborah L. Wicks
Executive Assistant/Finance Erin Province

Administrative Office 401 N. Lindbergh Blvd., Suite 300 St Louis, MO 63141-7839
phone (314) 432-6130 fax (314) 432-8170 email: info@americanboardortho.com

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