下颌第三磨牙拔出方法与颞下颌关节紊乱病的相关性研究

目的:分析不同拔牙方式对下颌第三磨牙拔出后患者出现TMD的症状,探讨两种拔牙方式拔出下颌第三磨牙后与TMD的相关性。方法:随机选择符合纳入标准的需要拔出下颌第三磨牙的患者160例,采用微创拔牙法与传统拔牙法拔出异位萌出的下颌第三磨牙,在拔牙术前、术后1周、4周、6月分别进行TMD的双轴诊断,确定TMD的不同程度。结果:通过对160例拔牙患者6个月的回访发现,微创拔牙方式拔除下颌第三磨牙后弹响消失、减轻的患者占15%,选择传统拔牙方式拔除下颌第三磨牙后弹响消失、减轻的患者占7.5%;双轴诊断评价结果显示运用微创技术拔出下颌第三磨牙后出现颞下颌关节结构紊乱疾病、咀嚼肌紊乱疾病的患者数量较传统拔牙法有下降的趋势,差异具有统计学意义。结论:微创拔牙技术能够显著降低下颌第三磨牙拔出术中、术后颞下颌关节紊乱并发症出现的几率。

Relationship between Methods of Extract Mandibular Third Tooth and TMD.

Objective: To investigate the relationship between methods of extract tooth and TMD. Methods: 160 individual were randomly chosed. Minimally invasive and traditional extract tooth methods were used respectively to extract impacted tooth of third molar of mandibular. Dual-axis diagnosis standard was used to analyse the symptom of TMD after operation of extract the tooth in pre-operation, post-operation 1, 4, 24 weeks. Results: The group of minimally invasive morbidity of temporomandibular joint click was significantly lower than the traditional extract tooth methods group, and this difference was statistically significant. Conclusion: Minimally invasive extract tooth methods can reduce the complication of TMD.