Welcome @ the Greater Philadelphia Society of Orthodontists

Founded in 1945 by John Valentine Mershon, the Greater Philadelphia Society of Orthodontics is a professional association for dentists specialized in orthodontics. As a constituent of the American Association of Orthodontists covering the Philadelphia Tri-state Area, our mission is to advance the art and science of orthodontics.

GPSO Update

Orthodontist Meeting in the Philadelphia, New Jersey, Delaware Area

Continuing Education Courses 

Next course: November 2019
Date and topic TBA.

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Philadelphia Orthodontist News

GPSO News

Updates from the Orthodontic Residency Programs at Temple, UPenn and Albert Einstein Medical Center.
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GPSO Historical Info

In Profile: John Valentine Mershon

GPSO founder Dr. Mershon developed the removable lingual arch appliance and pioneered the application of biological principles in orthodontics.
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