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KCI등재 학술저널

상악 좌측 측절치 결손을 동반한 골격성 III급 부정교합 환자의 선수술 치험례

Surgery-First Orthognathic Treatment in Class III Patient with Congenital Missing of Unilateral Maxillary Lateral Incisor

DOI : 10.33777/cjkao.2020.10.1.21
  • 84

This case report describes a surgery-first orthognathic treatment of a skeletal Class III patient with congenital missing of a maxillary lateral incisor. A 24-year-old male presented with a chief complaint of mandibular prognathism. Clinical examination showed concave facial profile with moderate crowding. Intraorally, he exhibited both Class III molar relationship, mild crowding in both arches, and 3.0 mm negative overjet. The maxillary dental midline was deviated 3.0 mm to the left, caused by congenital missing of the maxillary left lateral incisor. The cephalometric analysis showed skeletal Class III malocclusion with a hyperdivergent pattern. For skeletal overcorrection of mandibular prognathism and asymmtery, bilateral sagittal split ramus osteotomy was performed with surgery-first approach. To correct the maxillary midline deviation, maxillary right second premolar was extracted. Maxillary left lateral incisor was substituted with the canine by orthodontic space closure. With careful pre-operative orthodontic planning, surgery-first orthognathic treatment was successfully treated with satisfying esthetics.

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