论文部分内容阅读
目的:探讨三维颌骨牵张治疗颌骨畸形的临床效果。方法:回顾性分析我院2005年1月-2011年6月收治的颌骨畸形患者42例,根据牵张方法不同分为观察组和对照组,观察组采用三维颌骨牵张,对照组采用平行于矢状轴方向进行牵张,比较两组的牵张效果。结果:术后随访6～24个月,两组牵张时间进行比较,t=7.824,P<0.05,两组牵张时间差异有统计学意义。观察组无牵引器松动而发生发生牵张失败的病例,观察组无失败病例,对照组为6例,占28.57%,x2=4.861,P<0.05,两组牵张失败率差异有统计学意义。观察组与对照组患者咬颌关系(x2=5.091,P<0.05)、颞颌关节(x2=6.431,P<0.05)、颜面外观(x2=4.434,P<0.05)比较,两组差异有统计学意义。结论:三维颌骨牵张法能达到成骨快,成骨质量高的要求,因此在下颌骨正畸过程中适宜采用三维颌骨牵张法。
Objective: To investigate the clinical effect of three-dimensional mandibular distraction in the treatment of jaw deformity. Methods: Forty-two patients with jaw deformity admitted in our hospital from January 2005 to June 2011 were retrospectively analyzed. The observation group and the control group were divided into observation group and control group according to different distraction methods. The control group was treated with three- Parallel to the sagittal axis stretch, compare the two groups of distraction effect. Results: The patients were followed up for 6-24 months. The stretch time was compared between the two groups, t = 7.824, P <0.05. There was significant difference in the stretch time between the two groups. There was no failure cases in the observation group without traction loosening. There were 6 cases in the observation group, accounting for 28.57%, x2 = 4.861, P <0.05. There was significant difference in the failure rate between the two groups . The bite-jaw relationship (x2 = 5.091, P <0.05) between the observation group and the control group was significantly higher than that of the TMJ group (x2 = 6.431, P <0.05) Significance of learning. Conclusion: Three-dimensional mandibular distraction method can achieve the requirement of fast osteogenesis and high osteogenesis quality. Therefore, the three-dimensional mandibular distraction method is suitable for mandibular orthodontics.