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A preliminary electromyographic study of bite force and jaw-closing muscle fatigue in human subjects with advanced tooth wear.

Abstract
The maximum bite force was recorded in five experimental volunteers with advanced tooth wear and five control volunteers who showed no abnormal wear. All subjects were then asked to maintain a force of 50% of the maximum for as long as possible while surface electromyograms from the masseter and temporalis muscles were recorded. The bite force and endurance time were found to be slightly increased in the experimental group, but no conclusions could be drawn regarding the state of fatigue. Two significant problems with regard to fatigue studies of the jaw-closing muscles emerged from the study, namely the use of the canine position for recording of the force, and the thickness of the force meter.
AuthorsM F Lyons, R H Baxendale
JournalJournal of oral rehabilitation (J Oral Rehabil) Vol. 17 Issue 4 Pg. 311-8 (Jul 1990) ISSN: 0305-182X [Print] England
PMID2213325 (Publication Type: Comparative Study, Journal Article)
Topics
  • Adult
  • Bite Force
  • Bruxism (physiopathology)
  • Cuspid (physiology)
  • Electromyography
  • Equipment Design
  • Fatigue (physiopathology)
  • Humans
  • Isometric Contraction
  • Male
  • Masseter Muscle (physiopathology)
  • Middle Aged
  • Stress, Mechanical
  • Temporal Muscle (physiopathology)
  • Time Factors
  • Tooth Abrasion (physiopathology)

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