성장기 구개열 환자에서 상악골 신장술을 통한 치료 후 7년 장기관찰

Maxillary Distraction Osteogenesis in Growing Patient with Cleft Palate: A 7-Year Follow-Up

Patients with cleft lip and palate demonstrate reduced maxillary length and retruded premaxillary position relative to the cranial base. Distraction osteogenesis (DO) is an alternative technique to treat severe maxillary and midface deficiencies. This case report describes a successful orthodontic treatment maxillary DO with a rigid external distraction device in a growing cleft palate patient with a 7-year follow-up. A 12-year-old female patient with complete cleft palate showed anterior crossbite, severe crowding on both arch and severe maxillary deficiency. At the early stage of treatment, maxillary DO was performed to improve deficiency in maxilla. After crossbite correction, quad-helix was applied for maxillary arch expansion. Moreover, orthodontic brackets were applied with the use of facemask. After orthodontic treatment with the maxillary DO, the patient achieved improved facial profile and favorable occlusion. The favorable occlusion and improved facial profile was maintained 7 years after orthodontic treatment.