Utilization of leeway space in moderate crowding.
D002648:Child; D003724:Dental Arch / Q000254:growth & development; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D013027:Space Maintenance, Orthodontic; D014087:Tooth Movement Techniques / Q000379:methods*