急性根尖周炎叩痛时的咀嚼肌肌电变化初步探讨  

A study of the electromyogram in periapical periodonlitis

作　　者：谢燕[1] 谢建云[2] 虞芬[1] 刘丽敏[1] 张茂先[1] 

机构地区：[1]首都医科大学生理教研室,北京100054 [2]首都医科大学附属北京口腔医院

出　　处：《临床口腔医学杂志》2004年第9期551-553,共3页Journal of Clinical Stomatology

摘　　要：目的 :将肌电分析方法引入根尖周病的研究领域 ,探讨咀嚼肌肌电变化与临床检查叩痛时的关系。方法 :门诊就诊的急性根尖周炎 64例 ,患牙为第一或第二磨牙 ,叩痛 ( +)。测量急性根尖周炎患牙治疗前后的咀嚼肌肌电变化。结果 :急性根尖周炎叩痛 ( +)患者在正中颌位大力咬合时 ,颞肌与嚼肌的肌电幅值分别为 ( 0 .45±0 .1)mV和 ( 0 .18± 0 .0 3 )mV ,颞肌肌电幅值高于嚼肌肌电幅值 ;做开闭口运动的颞肌、嚼肌肌电幅值分别为 ( 0 .5±0 .12 )mV和 ( 0 .2 2± 0 .0 7)mV ,颞肌肌电幅值高于嚼肌肌电幅值。经根管治疗后 ,颞肌、嚼肌肌电均有显著提高 ,与治疗前有显著性差异。结论 :本实验将肌电分析方法应用于急性根尖周炎治疗前后的临床检查和疗效评价的可行性进行了探讨。Objective: The purpose of the present study was to investigate the relationship between the electromyogram of the masticatoy muscles and the percussion pain (+) in Periapical Periodonlilis. Method: The electromyogram of the masticatoy muscles was recorded, with 64 outpatients in acute Periapical Periodonlilis, the First or the Second molar teetch's percussion pain (+). Result: When maximal clenching in the position of centric occlusion with the percussion pain (+), The average voltage of temporalis and masseter were (0.45±0.1)mV and (0.18±0.03)mV, voltage of the temporalis was higher than masseter. Open and close mouth, The average voltage of temporalis and masseter were (0.5±0.12)mV and (0.22±0.07)mV, voltage of the temporalis was higher than masseter. After the root canal sterilization, there was a statistically significant increase (P<0.05).Conclusion: It indicated that the electromyogram of the masticatoy muscles could be used as a harmless guideline in the field of the periapical periodonlilis.

关 键 词：肌电变化 急性根尖周炎 咀嚼肌 颞肌 治疗前后 初步探讨 第二磨牙 电分析 幅值 结论 

分 类 号：R781[医药卫生—口腔医学] R783[医药卫生—临床医学]