Intraoral distraction osteogenesis
Wang, X.; Lin, Y.; Zhou, Y.
Zhonghua Kou Qiang Yi Xue Za Zhi 35(3): 170-173
2000
ISSN/ISBN: 1002-0098 PMID: 11780215 Document Number: 521671
To study the application of intraoral distraction osteogenesis in correction of various dentofacial deformities. From 1997, 12 cases with various dentofacial deformities were corrected by using 6 kind of intraoral distractor. 3 cases of them were the patients with cleft palate who have severe secondary maxillary hypoplasia. 4 cases with hemifacial microsomia, 2 cases with micrognathia and 3 cases with partial mandibular defect. The maxillae were elongated from 10 mm to 15 mm, the mandibles were elongated from 15 mm to 25 mm, the vertical mandibular distraction was from 10-15 mm. All cases were corrected satisfactorily and have no any complications. In 1 case the distractor did not work during distraction and was replaced. Another case the mandibular margin fractured after distraction, the rigid fixation was performed for it. The intraoral distraction osteogenesis provides a new method with many advantages for those dentofacial deformities that are difficult correct by using ordinary orthognathic surgery.