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Experimental occlusal interferences. Part I. A review

L V Christensen1, N M Rassouli

  • 1Marquette University, School of Dentistry, Milwaukee, Wisconsin, USA.

Journal of Oral Rehabilitation
|July 1, 1995
PubMed
Summary

Experimental occlusal interferences may alter jaw muscle activity and mandible movement. While long-term harm is unproven, short-term symptoms like jaw pain and headaches are linked to these interferences.

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Area of Science:

  • Dental Science
  • Neuromuscular Dentistry
  • Biomechanics

Background:

  • Occlusal interferences, or premature contacts in the bite, are common dental phenomena.
  • Their impact on jaw muscle function and temporomandibular joint (TMJ) behavior requires further investigation.
  • Understanding these effects is crucial for diagnosing and managing related symptoms.

Purpose of the Study:

  • To review the effects of experimental occlusal interferences on jaw muscle activity and mandibular motion.
  • To evaluate the established short-term and potential long-term consequences of these interferences.
  • To propose new research approaches for studying occlusal interferences.

Main Methods:

  • Literature review of studies involving experimental induction of occlusal interferences.
  • Analysis of electromyographic data on human jaw muscle contraction patterns.
  • Assessment of studies examining mandibular translatory motion patterns.
  • Correlation of experimental findings with reported clinical symptoms and signs.

Main Results:

  • Experimental occlusal interferences can alter myoelectric contraction patterns in human jaw muscles.
  • Changes in mandibular translatory motion patterns have been observed due to occlusal interferences.
  • A clear link between these changes and specific long-term detrimental effects remains unestablished.
  • Short-term clinical symptoms, including jaw muscle fatigue, pain, headaches, and TMJ issues, are associated with experimental interferences.

Conclusions:

  • Experimental occlusal interferences demonstrably affect jaw muscle and mandibular dynamics.
  • While short-term symptoms are evident, definitive long-term adverse effects require further research.
  • The findings support the need for novel research paradigms to investigate occlusal interferences and their clinical relevance.

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