Evaluation of the function and activity of masticatory muscles using a self-developed wireless surface electromyography system.
10.7518/hxkq.2024.2024407
- Author:
Wenbo LI
1
;
Yujia ZHU
2
;
Qingzhao QIN
2
;
Shenyao SHAN
1
;
Zixiang GAO
2
;
Aonan WEN
2
;
Yong WANG
2
;
Yijiao ZHAO
1
Author Information
1. Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China.
2. Center of Digital Dentistry/Dept. of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & NHC Key Laboratory of Digital Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
- Publication Type:Journal Article
- Keywords:
electromyographic signals;
masseter muscle;
masticatory muscle;
surface electromyography device;
temporalis muscle
- MeSH:
Humans;
Electromyography/methods*;
Masseter Muscle/physiology*;
Masticatory Muscles/physiology*;
Wireless Technology;
Reproducibility of Results;
Temporal Muscle/physiology*;
Male;
Adult;
Female;
Young Adult
- From:
West China Journal of Stomatology
2025;43(3):346-353
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVES:This study aimed to evaluate the repeatability and reliability of a self-developed domestic wireless surface electromyography (sEMG) system (Oralmetry) in assessing the activity of the temporalis and masseter muscles to provide theoretical support for its clinical application.
METHODS:Twenty-two volunteers were recruited. Through multiple repeated measurements, the sEMG signals of bilateral anterior temporalis and masseter muscles during maximum voluntary clenching were collected using the self-developed sEMG device, Oralmetry, and two commercial sEMG devices (Zebris and Teethan), filtered, screened, and standardized. Seven sEMG indicators for assessing masticatory muscle function were calculated. The intraclass correlation coefficient (ICC) was used to evaluate the repeatability of the measurements from the three sEMG devices, and statistical analysis was conducted to compare the consistency of the seven sEMG indicators obtained from the devices.
RESULTS:Among the 22 participants, the ICC values of the repeated measurements from the three sEMG devices ranged from 0.88 to 0.99. The measurements of three sEMG indicators (antero-posterior coeffificient, percentage overlapping coeffificient_MM, and percentage overlapping coeffificient_TA) obtained by Zebris were significantly different from those obtained by Oralmetry and Teethan (P<0.05). No significant differences in the measurements of the seven sEMG indicators were found between Oralmetry and Teethan.
CONCLUSIONS:Oralmetry and the two commercial sEMG devices demonstrated good repeatability in capturing sEMG indicators for evaluating masticatory muscle function. In particular, Oralmetry showed the highest ICC values. All three devices also exhibited good consistency in measuring sEMG indicators, and a high agreement was observed between the two wireless sEMG devices (Oralmetry and Teethan). These findings provide theoretical support for the clinical application of Oralmetry.
