顎顔面形態が咬合力と咀嚼筋筋放電活動に及ぼす影響について II.咬合力三次元測定装置

飯沼 利光; 祇園白 信仁; 森谷 良彦; 竹内 康司; 竹内 英明; 塚越 直行; 織井 康亙; 長谷川 寛; 加納 昭彦; 斉藤 嘉久; 山本 昭一; 山本 克之

doi:10.2186/jjps.35.366

The Influence of Craniofacial Form on Bite Force and EMG Activity of the Masticatory Muscles

II. The Three-dimensional Bite Force Measurement Sytem

Toshimitsu Iinuma, Nobuhito Gionhaku, Yoshihiko Moriya, Koji Takeuchi, Hideaki Takeuchi, Naoyuki Tsukakoshi, Yasunobu Orii, Kan Hasegawa, Akihiko Kanou, Yoshihisa Saitou, Shouichi Yamamoto, Katsuyuki Yamamoto

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Keywords: three-dimensional bite force, value of bite force, direction of bite force, maxillary clutch, mandibular clutch

JOURNAL FREE ACCESS

1991 Volume 35 Issue 2 Pages 366-380

DOI https://doi.org/10.2186/jjps.35.366

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Abstract

The purpose of this study was to explicate the mechanism of jaw movement and itscontrol system, using bite force and EMG of the masticate muscles with a view to examine theresult as an effective means of treatment. A new system of taking three-dimensional bite forcewas developed, which can take the value and direction of bite force. The description and evaluationof the new system and the result of the load test are presented.
The results were as follows:
1. The vertical and lateral direction (60 degree on occlusal plane) load tests revealed thatthe precision of the three-dimensional bite force measurement system was fully established.
2. When using this system, it is necessary to use the jig for fixing the maxillary andmandibular clutches.
3. Using an oscilloscope as the bite force feedback device was useful to instruct the level ofbite force.
4. This system is very effective to measure the value and direction of bite force.

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