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本文对下颌骨前徙术中采用皮质骨螺钉固定引起远期髁状突吸收进行了评价,同时分析了造成吸收的相关因素。 病例和方法 按Van Sickel等描述的方法,采用矢状劈开截骨术(BSSO)矫治下颌发育不足患者100例,每侧颌骨用3颗皮质骨螺钉坚固固定。颏点前移距离超过7mm者,常规运用前端悬吊丝。术后随访至少一年,包括头影测量和曲面断层检查。以术前、术后即刻,术后6周、8周及远期头影测量结果。观察下牙槽座
In this paper, pre-mandibular anterior surgery using cortical bone screw fixation induced long-term condyle was assessed, while the absorption caused by the relevant factors. Cases and Methods 100 cases of mandibular hypoplasia were treated with sagittal split osteotomy (BSSO) according to the method described by Van Sickel et al. Each jaw was firmly fixed with 3 cortical screws. Throat point forward more than 7mm distance, the conventional use of the front suspension wire. The patients were followed up for at least one year, including cephalometric measurements and surface tomography. Preoperative, postoperative immediately postoperative 6 weeks, 8 weeks and long term cephalometric results. Observe the alveolus