Electromyographic Assessment of Masseter Muscle Activity: A Proposal for a 24 h Recording Device with Preliminary Data.

Content Provider	Europe PMC
Author	Colonna, Anna Noveri, Lorenzo Ferrari, Marco Bracci, Alessandro Manfredini, Daniele
Editor	Wieckiewicz, Mieszko
Copyright Year	2022
Abstract	Objective The instrumental measurement of electromyographic (EMG) activity in the natural environment is the best strategy available to collect information on bruxism. The twofold aim of this study was to (1) introduce and discuss a novel EMG device for the assessment of awake (AB) and sleep bruxism (SB) in the home environment over 24 h and (2) present some preliminary data. Methods Fifteen healthy volunteers (eight males and seven females; mean age: 48.2 ± 4.1 years) underwent 24 h EMG recording trials of their masseter muscle activity (MMA) with a miniaturized wireless device. This device allowed us to measure the durations of the different phases of the recordings (total duration, awake time, sleep time, and electrode dislodgement time) as well as the bruxism time index (BTI) and bruxism work index (BWI) for both the waking and sleeping hours. Results For the healthy volunteers, on average, the bruxism work index (BWI) values were 0.4 ± 0.2 and 0.1 ± 0.1 for awake and sleep, respectively, while the mean bruxism time index (BTI) values were 0.9 ± 0.5 for awake and 0.3 ± 0.1 for sleep. Conclusions This investigation describes the technical features of a novel EMG recording device that permits the evaluation of masseter muscle activity in the home environment over 24 h. For the first time, a dedicated elaboration of the EMG signal allowed an assessment of muscle work and not just a count of purported SB/EMG events. Clinical significance Based on the multidisciplinary approach in the study of bruxism, such a methodology, thanks to its peculiar features, will allow researchers and clinicians to monitor the epidemiology of MMA and delve deeper into the awake and sleep bruxism correlates for tailored management in clinical settings.
Journal	Journal of Clinical Medicine [J Clin Med]
Volume Number	12
DOI	10.3390/jcm12010247
PubMed Central reference number	PMC9821195
Issue Number	1
PubMed reference number	36615048
e-ISSN	20770383
Language	English
Publisher	Molecular Diversity Preservation International (MDPI)
Publisher Date	2022-12-29
Access Restriction	Open
Subject Keyword	awake bruxism sleep bruxism bruxism masseter muscle activity electromyographic assessment diagnosis
Content Type	Text
Resource Type	Article
Subject	Medicine