Abstract
Orthodontic management of ectopic canines is quite challenging and time consuming due to the presence of thin buccal cortical bone. Sectional mechanics provide distal and extrusive force on canine but without any torque control. So, palatal root torquing during canine retraction is needed to increase the buccal cortical bone thickness and to avoid bone dehiscence and gingival recession. This article describes an innovative spring which provides 3-dimensional control by simultaneous retraction, extrusion, and torquing of ectopic canine.
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