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Related Experiment Videos

Bite force after temporomandibular joint surgery.

G Agerberg1

  • 1Department of Stomatognathic Physiology, School of Dentistry, University of Umeå, Sweden.

International Journal of Oral and Maxillofacial Surgery
|June 1, 1988
PubMed
Summary
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Patients undergoing temporomandibular joint (TMJ) surgery showed no significant difference in bite force between operated and non-operated sides. Improved masticatory function may explain these comparable bite force results after TMJ surgery.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomechanical Engineering
  • Dental Research

Background:

  • Temporomandibular joint (TMJ) disorders often necessitate surgical intervention, impacting masticatory function.
  • Understanding the biomechanics of bite force post-surgery is crucial for evaluating treatment outcomes.
  • Previous research indicates varied functional recovery following TMJ procedures.

Purpose of the Study:

  • To quantify and compare bite force levels between operated and non-operated sides in patients post-TMJ surgery.
  • To assess the ability of patients to discriminate between different force levels.
  • To explore the relationship between surgical procedure type (diskectomy, condylectomy) and bite force outcomes.

Main Methods:

  • Bite force measurements were recorded bilaterally on 12 post-TMJ surgery patients at five submaximal and maximal force levels.

Related Experiment Videos

  • Patients had previously undergone either diskectomy (n=10) or condylectomy (n=2).
  • Data analysis focused on comparing force levels between operated and non-operated sides and across different force settings.

    • Main Results:

    • Mean maximal bite force was relatively low (7.8 Kp operated, 8.3 Kp non-operated sides).
    • Strongest forces were observed following condylectomy.
    • No statistically significant differences in bite force were found between operated and non-operated sides across all tested force levels.
    • Force discrimination ability improved at higher force levels.
    • Individual recordings showed wide variations, increasing with force intensity.

    Conclusions:

    • Comparable bite force between operated and non-operated sides suggests functional adaptation within the masticatory system.
    • Surgical treatment for TMJ disorders may lead to improved overall function, reflected in balanced bilateral bite forces.
    • Further research with larger sample sizes and longer follow-up periods is warranted to confirm these findings.