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| Effect of anterior apical osteotomy on occlusal relationship in patients with bimaxillary protrusion |
| XIE Fang XU Jiajie LU Jianjian ZHANG Chao YANG Liya LI Shuyuan TENG Li▲ |
| The Fifth Department of Plastic Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Beijing, 100144, China |
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Abstract Objective To study effect of anterior apical osteotomy on occlusal relationship in patients with bimaxillary protrusion. Methods From September 2003 to October 2014, 20 patients with bimaxillary protrusion were included in this study, who underwent anterior subapical osteotomy of both the maxilla and mandible in Plastic Surgery Hospital, Chinese Academy of Medical Sciences. In addition, the pre- and postoperative cephalometric radiographs were systematically analyzed. Results After surgery, the levels of U1-OP, L1-OP, IMPA, U1E-Apog, L1E-Apog, U1E-NA, L1-NB, L1E-NB were decreased than before surgery, and the levels of ⅡA and U1-NA were increased than before surgery, with high statistically significant difference (P < 0.01). Conclusion With the use of a precise preoperative model surgical design, orthognathic surgery, a simple and time-saving technique, can be used to correct bimaxillary protrusion with satisfactory postoperative occlusal relationship, and minimal postoperative complications.
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