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Related Experiment Video

Updated: May 25, 2026

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice
06:37

Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice

Published on: September 13, 2024

Measurement of dynamic bite force during mastication.

A Shimada1, Y Yamabe, T Torisu

  • 1Department of Clinical Oral Physiology, School of Dentistry, Aarhus University, Aarhus, Denmark. ak2smd@gmail.com

Journal of Oral Rehabilitation
|February 1, 2012
PubMed
Summary

This study developed a novel intraoral bite force recorder to analyze natural human mastication. Findings reveal food type significantly impacts bite force and muscle activity, offering insights for oral rehabilitation.

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Last Updated: May 25, 2026

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Area of Science:

  • Biomechanics of mastication
  • Neuroscience of jaw control
  • Dental instrumentation

Background:

  • Efficient mastication relies on sensory-motor integration and central control of jaw movements and bite force.
  • Previous research on bite force dynamics was limited by technical constraints of existing recorders.
  • Understanding natural mastication requires methods that do not alter occlusal vertical dimension.

Purpose of the Study:

  • To develop a novel intraoral bite force recorder for natural mastication studies.
  • To analyze the relationship between electromyographic (EMG) activity, jaw movements, and bite force during food mastication.
  • To investigate the influence of different food types on masticatory dynamics.

Main Methods:

  • Development of customized intraoral force recorders using strain gauge sensors.
  • Placement of recorders on molar teeth of 14 healthy, dentate subjects (ages 21-39).
  • Recording bite force and electromyographic (EMG) activity during voluntary mastication of five distinct food types.

Main Results:

  • Successful intraoral force recordings were obtained from all subjects.
  • Analysis revealed significant influence of food type on bite force impulse and integrated EMG (P<0.05).
  • Time-related chewing parameters were significantly affected by chewing cycles (P<0.001).

Conclusions:

  • Intraoral force recording is feasible and provides valuable data on human mastication dynamics.
  • Findings have direct implications for improving oral rehabilitation strategies.
  • Bite force control during mastication appears to involve anticipatory adjustments and encoding of bolus characteristics.