J Korean Assoc Oral Maxillofac Surg.
2005 Dec;31(6):526-531.
Distraction osteogenesis in patients with hemifacial microsomia
- Affiliations
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- 1Department of Oral and Maxillofacial Surgery, School of Dentistry, and Institute of Oral Bio-Sciences, Chonbuk National University. omfsbja@chonbuk.ac.kr
Abstract
- Distraction osteogenesis is a technique of bone lengthening by gradual movement and subsequent remodeling. Distraction forces applied to bone also create tension in the surrounding soft tissues, distraction histiogenesis. Distraction osteogenesis is used to correct facial asymmetry, such as patients with hemifacial microsomia, maxillary or mandibular retrusion, cleft lip and palate, alveolar defect and craniofacial deficiency. Hemifacial microsomia is characterized by unilateral facial hypoplasia, often with unilateral shortening of the mandible and subsequent malocclusion. This report describes two cases of hemifacial microsomia(type IIB). In these two cases, distraction osteogenesis was used to correct a facial asymmetry. Two patients underwent unilateral mandibular distraction osteogenesis of ascending ramus of the mandible with extraoral devices. Successful distraction osteogenesis was achieved in the patients with hemifacial microsomia.
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