Peter C. Kesling (born 1932) was an American orthodontist known for the development of the tip-edge orthodontic appliance in 1986.
For 40 years, Dr. Kesling was an Associate Clinical Professor of Orthodontics at Saint Louis University.
He has co-authored two textbooks, including Orthodontic Theory and Technique.
In 2006, Peter sold some of the company shares to his son Andrew Kesling.
The brackets of this appliance are made by removing the diagonally opposed corners from Edward Angle's edgewise slot.