在有报告磨牙症的患者中，条件性电刺激在睡眠期间抑制咀嚼肌活动，但不抑制疼痛强度或咀嚼肌压痛阈：一项初步研究。
Contingent electrical stimulation inhibits jaw muscle activity during sleep but not pain intensity or masticatory muscle pressure pain threshold in self-reported bruxers: a pilot study.
机构信息
Professor, Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Doctorate Student, Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol. 2014 Jan;117(1):45-52. doi: 10.1016/j.oooo.2013.08.015. Epub 2013 Oct 31.
OBJECTIVE
This study investigated the effect of contingent electrical stimulation (CES) on present pain intensity (PI), pressure pain threshold (PPT), and electromyographic events per hour of sleep (EMG/h) on probable bruxers with masticatory myofascial pain.
STUDY DESIGN
The study enrolled 15 probable bruxers with masticatory myofascial pain in 3 phases: (1) baseline EMG/h recording, (2) biofeedback treatment using a CES paradigm (active group, n = 7) or inactive device (control group, n = 8), and (3) posttreatment EMG/h recording. PI and PPT were assessed after each phase. Analysis of variance models were used to compare results at a 5% significance level.
RESULTS
Patients in the active group had 35% lower EMG/h in P2 and 38.4% lower EMG/h in P3, when compared with baseline. There were no differences in PI or PPT levels at any phase.
CONCLUSIONS
CES could reduce EMG activity associated with sleep bruxism in patients with masticatory myofascial pain but did not influence perceived pain.
目的
本研究旨在探讨条件性电刺激（CES）对咀嚼肌筋膜疼痛的磨牙症患者的当前疼痛强度（PI）、压痛阈值（PPT）和每小时睡眠肌电图事件（EMG/h）的影响。
研究设计
本研究共纳入 15 名咀嚼肌筋膜疼痛的可能磨牙症患者，分为 3 个阶段：（1）基线 EMG/h 记录，（2）使用 CES 范式（主动组，n=7）或非活性设备（对照组，n=8）进行生物反馈治疗，以及（3）治疗后 EMG/h 记录。在每个阶段后评估 PI 和 PPT。使用方差分析模型在 5%的显著性水平上比较结果。
结果
与基线相比，主动组患者在 P2 时的 EMG/h 降低了 35%，在 P3 时的 EMG/h 降低了 38.4%。在任何阶段，PI 或 PPT 水平均无差异。
结论
CES 可降低咀嚼肌筋膜疼痛的磨牙症患者睡眠时的肌电图活动，但对感知疼痛没有影响。
Zotero 插件