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Related Experiment Videos

Changes in mandibular masticatory movements after insertion of nonworking-side interference.

S Karlsson1, S A Cho, G E Carlsson

  • 1Faculty of Odontology, University of Göteborg.

Journal of Craniomandibular Disorders : Facial & Oral Pain
|January 1, 1992
PubMed
Summary

Introducing balancing-side interferences temporarily altered mandibular movements in healthy subjects. However, the neuromuscular system adapted over one week, suggesting resilience to these occlusal changes.

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Area of Science:

  • Dental occlusion
  • Masticatory system biomechanics
  • Neuromuscular adaptation

Background:

  • Occlusal interferences can affect masticatory function.
  • Understanding the neuromuscular response to occlusal changes is crucial for dental health.
  • Previous research has explored short-term effects, but long-term adaptation requires further investigation.

Purpose of the Study:

  • To examine how nonworking-side occlusal interferences impact mandibular movements.
  • To assess the signs and symptoms of masticatory system dysfunction.
  • To determine the adaptive capacity of the neuromuscular system to experimental interferences.

Main Methods:

  • An experimental balancing-side interference was introduced in 12 healthy participants.
  • Mandibular masticatory movements were recorded and analyzed.

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  • Signs and symptoms of masticatory dysfunction were monitored over a one-week period.

    • Main Results:

    • Individual responses to the interference varied significantly among subjects.
    • Immediate insertion of the interference caused significant changes in some mandibular movement variables.
    • Evidence of neuromuscular system adaptation to the interference was observed by the end of the week.

    Conclusions:

    • The masticatory system exhibits adaptive capabilities in response to occlusal interferences.
    • Short-term occlusal changes can transiently affect mandibular kinematics.
    • Neuromuscular adaptation plays a key role in mitigating the effects of balancing-side interferences over time.