Traction of impacted canines in a skeletal Class III malocclusion

We read the case report describing traction of impacted canines in a skeletal Class III malocclusion in the June 2017 issue (Ferreira JT, Romano FL, Sasso Stuani MB, Assed Carneiro FC, Nakane Matsumoto MA. Traction of impacted canines in a skeletal Class III malocclusion: a challenging orthodontic treatment. Am J Orthod Dentofacial Orthop 2017;151:1159-68). We appreciate the authors' efforts in sharing this difficult case with us. However, we have some questions about diagnosis and therapy progress.

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