# Concept of cortical anchorage given by:

# Concept of cortical anchorage given by:
a. Angle 
b. Kingsley 
c. Ricketts 
d. Newton 

The correct answer is C. Ricketts. 

Rickets technique by intentionally bringing the buccal roots of the anchor teeth into contact with the cortical plates of bone thus increasing the anchorage value of such teeth. It should be appreciated that this process should be carried out with great care and precision since overzealous torque can produce root resorption or in extreme cases cortical perforation. (Brezniak& Wasserstein, 2008)

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