Introduction The aim of this study was to compare the root resorption (RR) of maxillary
incisors after traction of unilateral vs bilateral impacted canines with reinforced anchorage.
Methods This retrospective longitudinal study included 60 cone-beam computed
tomography scans of patients with maxillary impacted canines: 30 scans taken before and
30 taken after orthodontic traction with nickel-titanium coil springs. Two groups were formed
according to the impaction condition: 15 with unilateral maxillary impacted canines and 15 …