Periodic observation of the relapse of upper incisors which had been rotated by an appliance.
D000293:Adolescent; D002648:Child; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D008310:Malocclusion; D009967:Orthodontic Appliances; D012008:Recurrence; D013997:Time Factors; D014086:Tooth Mobility