Effect of electromyogram biofeedback on daytime clenching behavior in subjects with masticatory muscle pain
Effect of electromyogram biofeedback on daytime clenching behavior in subjects with masticatory muscle pain
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DOI：
10.1016/j.jpor.2010.09.003
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发表时间：
2011-04-01
影响因子：
3.6
通讯作者：
Fujisawa, Masanori
中科院分区：
文献类型：
--
作者：
Watanabe, Akira;Kanemura, Kiyotaka;Fujisawa, Masanori
目的：虽然白天咬牙被认为是导致牙齿问题的口腔功能障碍之一，但尚未制定出治疗策略。进行肌电图（EMG）生物反馈训练，以确定其对日间咬紧行为调节的效果。材料和方法：20名患有轻度至中度咀嚼肌疼痛且有日间咬紧行为的受试者（平均年龄，30.9+/-5.6岁）被随机分为生物反馈组（BF）或对照组（CO）。受试者配备助听器形状的肌电图记录和生物反馈装置，用于在自然条件下记录颞肌的肌电图数据，连续四天连续记录五个小时。第 1 天和第 4 天的肌电图数据分别在没有生物反馈的情况下记录为测试前和测试后，第 2 天和第 3 天，BF 组的受试者通过肌电图生物反馈装置发出的警报声注意到他们的紧握行为。 CO组在整个记录过程中没有发出警报声。结果：第1天BF组（4.6+/-2.5）和CO组（4.6+/-0.9）之间5小时咬紧牙事件的数量没有显着差异，但BF组在第1天（4.6+/-2.5）和第4天（2.4+/-1.7）之间显着减少；P < 0.05).结论：在自然情况下，借助肌电图生物反馈系统，短期内白天咬紧牙关有所减少。需要进一步的研究来确认其长期效果。 (C) 2010 年日本修复学会。由爱尔兰爱思唯尔出版。版权所有。
Purpose: Although daytime clenching is believed to be one of the oral parafunctions leading to dental problems, a treatment strategy has not yet been devised. Electromyogram (EMG) biofeedback training was performed to ascertain its effect on the regulation of daytime clenching behavior.Materials and methods: Twenty subjects (mean age, 30.9 +/- 5.6 years) who had mild to moderate masticatory muscle pain with daytime clenching behavior were randomly divided into either a biofeedback group (BF) or control group (CO). Subjects were fitted with a hearing-aid-shaped EMG recording and biofeedback apparatus which was used to record EMG data under natural conditions from the temporal muscle, continuously for five hours on four consecutive days. EMG data on Days 1 and 4 were recorded without biofeedback as pre-test and post-test, respectively, and on Days 2 and 3, subjects in the BF group noticed their clenching behaviors via an alert sound from the EMG biofeedback apparatus. No alert sound was given for the CO group throughout the recording sessions.Results: There was no significant difference in the number of clenching events for five hours between the BF group (4.6 +/- 2.5) and CO group (4.6 +/- 0.9) on Day 1, however a significant decrease was found in the BF group between Day 1 (4.6 +/- 2.5) and Day 4 (2.4 +/- 1.7; P < 0.05).Conclusion: Daytime clenching was reduced in the short-term with the help of an EMG biofeedback system under natural circumstances. Further research is needed to confirm a long-lasting effect. (C) 2010 Japan Prosthodontic Society. Published by Elsevier Ireland. All rights reserved.