Frequency distribution of the number and amplitude of electromyographic waveforms of the masseter muscle during sleep in patients with a clinical diagnosis of sleep bruxism.

IF 2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Cranio-The Journal of Craniomandibular & Sleep Practice Pub Date : 2025-07-01 Epub Date: 2023-06-16 DOI:10.1080/08869634.2023.2222640

Ai Kudo, Taihiko Yamaguchi, Saki Mikami, Miku Saito, Toshinori Nakajima, Masana Maeda, Mebae Takahashi, Sota Takahashi, Akihito Gotouda

{"title":"Frequency distribution of the number and amplitude of electromyographic waveforms of the masseter muscle during sleep in patients with a clinical diagnosis of sleep bruxism.","authors":"Ai Kudo, Taihiko Yamaguchi, Saki Mikami, Miku Saito, Toshinori Nakajima, Masana Maeda, Mebae Takahashi, Sota Takahashi, Akihito Gotouda","doi":"10.1080/08869634.2023.2222640","DOIUrl":null,"url":null,"abstract":"Objective: This study aimed to clarify frequency distribution of number and peak amplitude of electromyographic (EMG) waveforms of sleep bruxism (SB) in outpatients with clinical diagnosis of SB (probable bruxer: P-bruxer).Methods: Subjects were 40 P-bruxers. Masseteric EMG during sleep was measured at home using a wearable EMG system. EMG waveforms with amplitude of more than two times the baseline and with duration of 0.25 s were extracted as SB bursts. Clusters of bursts, i.e. SB episodes, were also scored.Results: There were large variations among the subjects in numbers of SB bursts and episodes and in burst peak amplitude. As for burst peak amplitude within a subject, a wide right-tailed frequency distribution was shown with the highest frequency at the class of 5-10% maximum voluntary contraction.Conclusion: The number and amplitude of SB waveforms for P-bruxers were distributed over a wide range, indicating the existence of large individual differences.","PeriodicalId":56318,"journal":{"name":"Cranio-The Journal of Craniomandibular & Sleep Practice","volume":" ","pages":"558-570"},"PeriodicalIF":2.0000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cranio-The Journal of Craniomandibular & Sleep Practice","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1080/08869634.2023.2222640","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/6/16 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Objective: This study aimed to clarify frequency distribution of number and peak amplitude of electromyographic (EMG) waveforms of sleep bruxism (SB) in outpatients with clinical diagnosis of SB (probable bruxer: P-bruxer).

Methods: Subjects were 40 P-bruxers. Masseteric EMG during sleep was measured at home using a wearable EMG system. EMG waveforms with amplitude of more than two times the baseline and with duration of 0.25 s were extracted as SB bursts. Clusters of bursts, i.e. SB episodes, were also scored.

Results: There were large variations among the subjects in numbers of SB bursts and episodes and in burst peak amplitude. As for burst peak amplitude within a subject, a wide right-tailed frequency distribution was shown with the highest frequency at the class of 5-10% maximum voluntary contraction.

Conclusion: The number and amplitude of SB waveforms for P-bruxers were distributed over a wide range, indicating the existence of large individual differences.

查看原文本刊更多论文

临床诊断为睡眠磨牙症患者睡眠时咬肌肌电波形数和振幅的频率分布。

目的：研究临床诊断为睡眠磨牙症（可能为bruxer: P-bruxer）的门诊患者睡眠磨牙症（SB）的肌电波数和峰幅的频率分布。方法：选取40例P-bruxers。在家中使用可穿戴式肌电图系统测量睡眠期间的咀嚼肌电图。提取振幅大于基线2倍、持续时间为0.25 s的肌电波形作为SB爆发。一连串的爆发，即SB发作，也被评分。结果：被试在脑电波爆发次数、发作次数和峰值振幅上存在较大差异。个体内爆发峰值振幅呈宽的右尾频率分布，在最大自主收缩5-10%时频率最高。结论：P-bruxers的SB波形数量和振幅分布范围较广，存在较大的个体差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Cranio-The Journal of Craniomandibular & Sleep Practice DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： CRANIO: The Journal of Craniomandibular & Sleep Practice is the oldest and largest journal in the world devoted to temporomandibular disorders, and now also includes articles on all aspects of sleep medicine. The Journal is multidisciplinary in its scope, with editorial board members from all areas of medicine and dentistry, including general dentists, oral surgeons, orthopaedists, radiologists, chiropractors, professors and behavioural scientists, physical therapists, acupuncturists, osteopathic and ear, nose and throat physicians. CRANIO publishes commendable works from outstanding researchers and clinicians in their respective fields. The multidisciplinary format allows individuals practicing with a TMD emphasis to stay abreast of related disciplines, as each issue presents multiple topics from overlapping areas of interest. CRANIO''s current readership (thousands) is comprised primarily of dentists; however, many physicians, physical therapists, chiropractors, osteopathic physicians and other related specialists subscribe and contribute to the Journal.