短牙弓对患者颞下颌关节的影响
发布时间:2018-08-27 10:16
【摘要】:目的:研究短牙弓患者颞下颌关节的负荷以及短牙弓与颞下颌关节紊乱的关联。方法:通过CT扫描获得头面部原始数据,建立三维有限元模型,比较完整牙弓和短牙弓的颞下颌关节应力和负荷;临床上收集短牙弓病例,根据患者的修复意愿分成两组(活动义齿RPD组和短牙弓SDA组),同时收集完整牙列的患者作为对照组(全牙弓CDA组),比较3组患者的颞下颌关节紊乱相关体征。结果:有限元分析发现随着牙弓的缩短,颞下颌关节应力和负荷增大;临床检查发现短牙弓组颞下颌关节紊乱体征的阳性率增加,但3组之间没有统计学差异。结论:短牙弓虽然不是颞下颌关节紊乱的危险因素,但是要关注短牙弓患者颞下颌关节的变化。
[Abstract]:Objective: To study the temporomandibular joint load and the relationship between the short dental arch and temporomandibular joint disorder in patients with short dental arch.Methods: The original data of head and face were obtained by CT scanning, and a three-dimensional finite element model was established to compare the stress and load of temporomandibular joint between complete dental arch and short dental arch. Result: The stress and load of TMJ increased with the shortening of denture arch. The clinical examination showed that TMJ stress and load increased with the shortening of denture arch. Conclusion: Short dental arch is not a risk factor for temporomandibular disorder, but should be paid attention to the changes of temporomandibular joint in patients with short dental arch.
【作者单位】: 南方医科大学附属深圳妇幼保健院;
【基金】:深圳市科技和信息局资助课题(编号:200803073)
【分类号】:R782.6
[Abstract]:Objective: To study the temporomandibular joint load and the relationship between the short dental arch and temporomandibular joint disorder in patients with short dental arch.Methods: The original data of head and face were obtained by CT scanning, and a three-dimensional finite element model was established to compare the stress and load of temporomandibular joint between complete dental arch and short dental arch. Result: The stress and load of TMJ increased with the shortening of denture arch. The clinical examination showed that TMJ stress and load increased with the shortening of denture arch. Conclusion: Short dental arch is not a risk factor for temporomandibular disorder, but should be paid attention to the changes of temporomandibular joint in patients with short dental arch.
【作者单位】: 南方医科大学附属深圳妇幼保健院;
【基金】:深圳市科技和信息局资助课题(编号:200803073)
【分类号】:R782.6
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