Electromyogram biofeedback training for daytime clenching and its effect on sleep bruxism
Electromyogram biofeedback training for daytime clenching and its effect on sleep bruxism
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日间咬牙肌电生物反馈训练及其对睡眠磨牙症的影响
DOI：
10.1111/joor.12233
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发表时间：
2015
期刊：
影响因子：
2.9
通讯作者：
Fujisawa M
中科院分区：
文献类型：
--
作者：
Sato M;Iizuka T;Watanabe A;Iwase N;Otsuka H;Terada N;Fujisawa M
磨牙症会导致颞下颌关节紊乱并引起牙齿问题。尽管这是临床牙科中的一个重要问题，但尚未证明有效的治疗方法。本研究旨在利用肌电图（EMG）生物反馈（BF）训练来改善清醒时磨牙症（AB），并检查其对睡眠磨牙症（SB）的影响。 12 名具有 AB 主观症状或诊断为 SB 的男性参与者（平均年龄，26·8 ± 2·5 岁）被随机分为 BF (n = 7) 和对照组 (CO,n = 5)，连续三周接受 5 小时白天和夜间肌电图测量。将肌电图电极放置在习惯性咀嚼侧的颞肌上。 BF组的受试者接受BF训练，以提醒他们在第2周产生一定突发持续时间的过度肌电图活动时发生不良的紧握活动。然后，在第3周记录肌电图作为BF后测试。 CO 组的受试者在整个研究期间接受了肌电图测量，但没有进行任何肌电图 BF 训练。尽管 CO 组第 1-3 周强直肌电图事件的数量没有显示出统计学上的显着差异，但 BF 组第 2 周和第 3 周的强直肌电图事件数量无论白天还是夜间均显着减少（P<0·05，Scheffé 检验）。本研究结果表明EMG BF改善AB强直肌电事件也可以为调节SB强直肌电事件提供有效的方法。
Bruxism contributes to the development of temporomandibular disorders as well as causes dental problems. Although it is an important issue in clinical dentistry, no treatment approaches have been proven effective. This study aimed to use electromyogram (EMG) biofeedback (BF) training to improve awake bruxism (AB) and examine its effect on sleep bruxism (SB). Twelve male participants (mean age, 26·8 ± 2·5 years) with subjective symptoms of AB or a diagnosis of SB were randomly divided into BF (n= 7) and control (CO,n= 5) groups to undergo 5‐h daytime and night‐time EMG measurements for three consecutive weeks. EMG electrodes were placed over the temporalis muscle on the habitual masticatory side. Those in the BF group underwent BF training to remind them of the occurrence of undesirable clenching activity when excessive EMG activity of certain burst duration was generated in week 2. Then, EMGs were recorded at week 3 as the post‐BF test. Those in the CO group underwent EMG measurement without any EMG BF training throughout the study period. Although the number of tonic EMG events did not show statistically significant differences among weeks 1–3 in the CO group, events in weeks 2 and 3 decreased significantly compared with those in week 1, both daytime and night‐time, in the BF group (P<0·05, Scheffé's test). This study results suggest that EMG BF to improve AB tonic EMG events can also provide an effective approach to regulate SB tonic EMG events.