The patient, a 13-year-old Caucasian guy, presented with a Class II, Division 1 malocclusion on a Class II skeletal base. The upper incisors were proclined, with space loss in the upper left central incisor region caused by the loss of the central incisor following an avulsion trauma at the age of eight. The overjet was extended by 7 mm, but the overbite was average and unfinished to the palate. T...