title: Class II division I treatment utilizing the twelve-two system of directional force. A case report.
mesh_terms: D002508:Cephalometry; D002648:Child; D005260:Female; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D009971:Orthodontics, Corrective / Q000379:methods*