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Related Experiment Videos

[The relationship between loading on the TMJ and occlusal splints]

S B Ye1, W W Shen, C Y Yang

  • 1Department of Oral Physiology,School of Stomatology.Shanghai Second Medical University,Shanghai 200233,China.

Shanghai Kou Qiang Yi Xue = Shanghai Journal of Stomatology
|June 1, 1993
PubMed
Summary
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This study simulated temporomandibular joint (TMJ) loading with occlusal splints. Anterior splints significantly increased condyle loading, highlighting potential risks associated with specific dental appliances.

Area of Science:

  • Biomechanical Engineering
  • Dental Science
  • Orthodontics

Background:

  • The temporomandibular joint (TMJ) is susceptible to loading forces during mastication.
  • Occlusal splints are used to manage TMJ disorders, but their impact on joint loading requires further investigation.

Purpose of the Study:

  • To estimate the loading conditions on the TMJ using five different occlusal splint designs.
  • To analyze the dynamic relationship between dental occlusion, masticatory muscles, and TMJ under various splint conditions.

Main Methods:

  • Development of a computational model simulating the dynamic interactions between occlusion, masticatory muscles, and the TMJ.
  • Simulation of loading conditions with five distinct occlusal splint types.

Main Results:

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  • All tested occlusal splints resulted in increased condyle loading.
  • Anterior splints generated higher condyle loading compared to other tested splint designs.
  • Unilateral mastication and missing posterior teeth altered loading patterns on both TMJ condyles.

Conclusions:

  • Occlusal splints, particularly anterior designs, can increase TMJ condyle loading.
  • The findings underscore the importance of considering splint design and potential occlusal changes in managing TMJ loading.