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Masticatory Muscle Activity Using a 24-Hour Wearable Device

2026年10月1日 更新者：Linda Sangalli、Midwestern University

Reevaluating the Role of Masticatory Muscle Activity in Chronic Myofascial Pain Using a 24-Hour Wearable Device

Patients with chronic masticatory myofascial pain (MFP) often report that stress and parafunctional oral habits aggravate their pain, consistent with the widespread belief that stress and parafunctional habits lead to increased/sustained jaw muscle activity and subsequent pain. Yet, these assumptions have never been directly tested, given the lack of tools to measure masticatory muscle activity in real-world settings. This protocol describes a prospective, longitudinal, case-control observational study that will enroll 50 patients total (25 with clinician-diagnosed chronic MFP and 25 age- and sex-matched healthy controls) from the university-based dental clinics at Midwestern University, Illinois. Consenting participants will be instructed to complete a baseline biopsychosocial battery assessing self-reported awake and sleep bruxism (using the Oral Behavior Checklist, OBC), anxiety/depression symptoms (using the Patient Health Questionnaire, PHQ-4), perceived stress (using the Perceived Stress Scale, PSS), insomnia symptoms (using the Insomnia Severity Index, ISI) and chronic pain intensity (using the Graded Chronic Pain Scale, GCPS). All participants will be provided a 24-hour electromyograph (EMG) device (dia-BRUXO, Biotech-Novations, Sanremo, Italy) placed on the left masseter, recording jaw muscle activity. Brief ecological momentary assessments will be sent during the 24-hour period, assessing pain intensity, self-reported parafunctional habits, stress and anxiety. The primary aim will be to establish if self-reported awake and sleep bruxism and/or biopsychosocial distress are as-sociated with EMG-recorded masticatory muscle activity. The secondary aim will test if masticatory muscle activity is associated with jaw pain intensity.

研究概览

地位

招聘中

条件

研究类型

观察性的

注册 (估计的)

50

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

学习地点

  • 美国
    • Illinois
      • Downers Grove、Illinois、美国、60515
        • 招聘中
        • Midwestern University
        • 接触：

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

是的

有资格学习的性别

全部

取样方法

非概率样本

研究人群

Participants will be recruited from patients seen at the dental institutes at the Midwestern University, College of Dental Medicine-Illinois (Downers Grove, Illinois, USA)

描述

For the chronic myofascial pain group, the Inclusion Criteria are:

  • Patients of record of the dental institutes at Midwestern University, College of Dental Medicine-Illinois
  • Receiving a diagnosis of chronic masticatory myofascial pain according to the Diagnostic Criteria for Temporomandibular Disorders after a consult with the orofacial pain specialist
  • Reporting painful symptomatology on the day of the monitoring
  • Age 18+
  • Ability to connect to the Internet
  • Ability to read and speak English or Italian language

Exclusion Criteria:

  • Patients undergoing orthodontic treatments
  • Not on stable medication regimen on the day of the monitoring
  • Starting to wear an occlusal appliance on the day of the monitoring
  • Changed occlusal appliance within the past 3 months

For the healthy control group, Inclusion Criteria are:

  • Sex and age-matched otherwise healthy adults (without any pain-related masticatory myofascial pain upon examination)
  • Patients of record of the dental institutes at Midwestern University, College of Dental Medicine-Illinois
  • Ability to connect to the Internet
  • Ability to read and speak English language

Exclusion criteria:

  • Patients undergoing orthodontic treatments
  • Not on stable medication regimen on the day of the monitoring
  • Starting to wear an occlusal appliance on the day of the monitoring
  • Changed occlusal appliance within the past 3 months

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 观测模型：CASE_CONTROL
  • 时间观点：PROSPECTIVE

队列和干预

团体/队列
Chronic masticatory myofascial pain

Adult patients of the dental institutes, with a clinician-confirmed diagnosis of chronic (>3 months) myofascial pain.
Healthy controls

Sex- and age-matched otherwise healthy adults visiting the dental institute for recall visits, without any pain-related TMD or any other orofacial pain complaint

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Self-reported parafunctional behaviors
大体时间：Baseline, before the 24-hour assessment period

Self-reported parafunctional behaviors will be assessed using the Oral Behavior Checklist (OBC), a validated instrument to evaluate frequency, type, and overall burden of awake and sleep self-reported oral parafunctional behaviors (e.g., tooth clenching, grinding, jaw bracing, and other repetitive jaw activities). Answers will be rated on a 5-point Likert scale (from 0 = "None of the time" to 4 = "4-7 nights/week"), and item scores will be summed to obtain a total score ranging from 0 to 84, with higher scores indicating a greater frequency and overall burden of self-reported oral parafunctional behaviors.
Baseline, before the 24-hour assessment period
EMG-recorded masticatory muscle activity
大体时间：During the 24-hour assessment period

Objective EMG-recorded masticatory muscle activity will be collected using the dia-BRUXO, a single-recording channel wireless portable electromyograph.
During the 24-hour assessment period

次要结果测量

结果测量
措施说明
大体时间
Emotional distress
大体时间：At baseline, before the 24-hour assessment period

Emotional distress (in terms of anxiety/depression symptomatology) will be assessed using the Patient Health Questionnaire (PHQ-4), a 4-item validated instrument tool inquiring about frequency of anxiety and depression symptomatology. Answers will be rated on a Likert scale (from 0 = "None" to 3 = "Nearly every day"). Item scores will be summed to obtain a total score ranging from 0 to 12, with cutoff values at 3, 6, and 9 reflecting mild, moderate, and severe anxiety and depression symptomatology.
At baseline, before the 24-hour assessment period
Stress symptomatology
大体时间：at baseline, before the 24-hour assessment period, as well as self-reported during the ecologic momentary assessment during the 24-hour assessment

Stress symptoms will be assessed using the Perceived Stress Scale (PSS), a 10-item validated instrument tool that measures how life circumstances affect adaptive capacity and perceived stress symptoms over the past month.41 Answer will be rated on a Likert scale and ranges from 0 (= "Never") to 4 (= "Very often"). Items 4, 5, 7, and 8 will reflect four positive items and will be reversed-scored before computing the final score. A total score will be obtained by summing all individual item scores and ranges from 0 to 40, interpreted as mild (0-13), moderate (14-26), and severe (27-40) stress symptomatology.
at baseline, before the 24-hour assessment period, as well as self-reported during the ecologic momentary assessment during the 24-hour assessment
Insomnia symptomatology
大体时间：at baseline, before the 24-hour assessment period

Insomnia symptoms will be assessed using the Insomnia Severity Index (ISI), a 7-item validated instrument tool measuring sleep difficulties in the previous 2 weeks. Answers will be rated on a Likert scale and ranges from 0 (= "None" or "Very satisfied") to 4 (= "Very severe" to "Very dissatisfied"). A total score will be obtained by summing all the individual item scores and ranges from 0 to 28, where a cutoff of ISI >11 suggests clinically meaningful insomnia.
at baseline, before the 24-hour assessment period
Pain intensity
大体时间：at baseline before the 24-hour assessment period and self-reported during the ecologic momentary assessment, during the 24-hour period

Assessed using the Graded Chronic Pain Scale (GCPS), an 8-item validated tool inquiring about pain and interference within the past month. Characteristic Pain Intensity (CPI) will be calculated by averaging the scores of three items assessing "pain right now", "average pain in the last 30 days", and "worse pain in the last 30 days". Each item will be rated on an 11-point numerical rating scale ranging from 0 (= "No pain") to 10 (= "Worst imaginable pain"). The mean score will then be multiplied by 10 to yield a CPI score ranging from 0 to 100, with higher values indicating greater pain intensity.
at baseline before the 24-hour assessment period and self-reported during the ecologic momentary assessment, during the 24-hour period
Pain-related interference
大体时间：at baseline before the 24-hour assessment period and self-reported during the ecologic momentary assessment, during the 24-hour period

Assessed using the Graded Chronic Pain Scale (GCPS), an 8-item validated tool inquiring about pain and interference within the past month. Pain-related interference (from 0 to 10) will be calculated by averaging the scores of three items assessing the extent to which pain has interfered with "usual activities", "recreational, social, and family activities", and "ability to work", all during the last 30 days. The mean score will then be multiplied by 10 to yield a pain interference scores ranging from 0 to 100, with higher values indicating higher interference
at baseline before the 24-hour assessment period and self-reported during the ecologic momentary assessment, during the 24-hour period

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Midwestern University

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2025年6月1日

初级完成 (估计的)

2027年7月31日

研究完成 (估计的)

2027年9月30日

研究注册日期

首次提交

2026年9月26日

首先提交符合 QC 标准的

2026年10月1日

首次发布 (实际的)

2026年10月6日

研究记录更新

最后更新发布 (实际的)

2026年10月6日

上次提交的符合 QC 标准的更新

2026年10月1日

最后验证

2026年10月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • IRB-25-0038

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

未定

IPD 计划说明

De-identified individual data will be shared upon reasonable request to the corresponding author

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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