Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise

Teeth clenching during exercise is important for sports performance and health. Recently, several mouth guard (MG)-type wearable devices for exercise were studied because they do not disrupt the exercise. In this study, we developed a wearable MG device with force sensors on both sides of the maxill...

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Main Authors: Rio Kinjo, Takahiro Wada, Hiroshi Churei, Takehiro Ohmi, Kairi Hayashi, Kazuyoshi Yagishita, Motohiro Uo, Toshiaki Ueno
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/4/1503
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author Rio Kinjo
Takahiro Wada
Hiroshi Churei
Takehiro Ohmi
Kairi Hayashi
Kazuyoshi Yagishita
Motohiro Uo
Toshiaki Ueno
author_facet Rio Kinjo
Takahiro Wada
Hiroshi Churei
Takehiro Ohmi
Kairi Hayashi
Kazuyoshi Yagishita
Motohiro Uo
Toshiaki Ueno
author_sort Rio Kinjo
collection DOAJ
description Teeth clenching during exercise is important for sports performance and health. Recently, several mouth guard (MG)-type wearable devices for exercise were studied because they do not disrupt the exercise. In this study, we developed a wearable MG device with force sensors on both sides of the maxillary first molars to monitor teeth clenching. The force sensor output increased linearly up to 70 N. In four simple occlusion tests, the trends exhibited by the outputs of the MG sensor were consistent with those of an electromyogram (EMG), and the MG device featured sufficient temporal resolution to measure the timing of teeth clenching. When the jaw moved, the MG sensor outputs depended on the sensor position. The MG sensor output from the teeth-grinding test agreed with the video-motion analysis results. It was comparatively difficult to use the EMG because it contained a significant noise level. Finally, the usefulness of the MG sensor was confirmed through an exercise tolerance test. This study indicated that the developed wearable MG device is useful for monitoring clenching timing and duration, and the degree of clenching during exercise, which can contribute to explaining the relationship between teeth clenching and sports performance.
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spelling doaj.art-da10fabbbf454fbdb00831d9c75c9ba12023-12-11T17:56:08ZengMDPI AGSensors1424-82202021-02-01214150310.3390/s21041503Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during ExerciseRio Kinjo0Takahiro Wada1Hiroshi Churei2Takehiro Ohmi3Kairi Hayashi4Kazuyoshi Yagishita5Motohiro Uo6Toshiaki Ueno7Department of Sports Medicine/Dentistry, Division of Public Health, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanDepartment of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanDepartment of Sports Medicine/Dentistry, Division of Public Health, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanClinical Center for Sports Medicine and Sports Dentistry, Medical Hospital, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanDepartment of Sports Medicine/Dentistry, Division of Public Health, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanClinical Center for Sports Medicine and Sports Dentistry, Medical Hospital, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanDepartment of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanDepartment of Sports Medicine/Dentistry, Division of Public Health, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, JapanTeeth clenching during exercise is important for sports performance and health. Recently, several mouth guard (MG)-type wearable devices for exercise were studied because they do not disrupt the exercise. In this study, we developed a wearable MG device with force sensors on both sides of the maxillary first molars to monitor teeth clenching. The force sensor output increased linearly up to 70 N. In four simple occlusion tests, the trends exhibited by the outputs of the MG sensor were consistent with those of an electromyogram (EMG), and the MG device featured sufficient temporal resolution to measure the timing of teeth clenching. When the jaw moved, the MG sensor outputs depended on the sensor position. The MG sensor output from the teeth-grinding test agreed with the video-motion analysis results. It was comparatively difficult to use the EMG because it contained a significant noise level. Finally, the usefulness of the MG sensor was confirmed through an exercise tolerance test. This study indicated that the developed wearable MG device is useful for monitoring clenching timing and duration, and the degree of clenching during exercise, which can contribute to explaining the relationship between teeth clenching and sports performance.https://www.mdpi.com/1424-8220/21/4/1503teeth clenchingwearable sensormouth guardssports performancemasseter muscleelectromyogram
spellingShingle Rio Kinjo
Takahiro Wada
Hiroshi Churei
Takehiro Ohmi
Kairi Hayashi
Kazuyoshi Yagishita
Motohiro Uo
Toshiaki Ueno
Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise
Sensors
teeth clenching
wearable sensor
mouth guards
sports performance
masseter muscle
electromyogram
title Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise
title_full Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise
title_fullStr Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise
title_full_unstemmed Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise
title_short Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise
title_sort development of a wearable mouth guard device for monitoring teeth clenching during exercise
topic teeth clenching
wearable sensor
mouth guards
sports performance
masseter muscle
electromyogram
url https://www.mdpi.com/1424-8220/21/4/1503
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