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首页> 外文期刊>Dental Press Journal of Orthodontics >Stability of bimaxillary surgery on Class III malocclusion treatment
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Stability of bimaxillary surgery on Class III malocclusion treatment

机译：双上颌手术在III类错牙合治疗中的稳定性

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OBJECTIVE: To evaluate the stability of bimaxillary surgery in patients with skeletal malocclusion, with the use of rigid internal fixation. METHODS: Lateral cephalograms from 20 patients, 11 males and 9 females, mean age of 26 years and 1 month, were evaluated before surgery, immediately post-operative and at least 6 months after surgery. Nineteen cephalometric measurements were evaluated, and the results were statistically analyzed by means of the Student's t test and the Kruskal-Wallis test. RESULTS: The Le Fort I maxillary advancement surgery showed almost no relapse. There was lack of stability of mandibular setback, with relapse of 37.33% on point B, due to counterclockwise rotation of the mandible between post-operative periods, occurred by better intercuspation after surgery and muscle adaptation. The results showed the same tendencies for both genders. CONCLUSION: It was concluded that on the bimaxillary surgery treatment of Class III malocclusion, the maxillary surgery was very stable, but the mandibular setback recurred. No statistical differences were found in surgical stability between genders.
机译：目的：通过刚性内固定术评估双颌手术在骨骼错合患者中的稳定性。方法：对术前，术后即刻及术后至少6个月的20例患者的侧位脑电图进行了评估，平均年龄分别为26岁和1个月，男11例，女9例。评估了19个头颅测量值，并通过Student's t检验和Kruskal-Wallis检验对结果进行了统计分析。结果：Le Fort I上颌前移手术几乎没有复发。下颌后退缺乏稳定性，B点的复发率为37.33％，这是由于术后期间下颌骨逆时针旋转导致的，原因是手术后肌肉和肌肉的适应性更好。结果表明，两种性别的趋势相同。结论：得出的结论是，在双上颌手术治疗III类错牙合时，上颌手术非常稳定，但下颌复发。男女之间在手术稳定性方面没有统计学差异。

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