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Related Concept Videos

Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

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As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...
465

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Updated: Jan 9, 2026

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
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Shear wave elastography as a diagnostic method for bruxism.

Fadime Güven1, Ahmet Tuğrul Akkuş2, Nuran Dinçkal Yanikoğlu3

  • 1Department of Radiology, Medical Faculty, Ataturk University, Erzurum, Turkey.

Medicine
|December 2, 2025
PubMed
Summary
This summary is machine-generated.

Shear wave elastography (SWE) can effectively diagnose bruxism by measuring masseter muscle stiffness. A threshold of 13.55 kPa shows high accuracy in identifying this common condition.

Keywords:
bruxismelasticity imaging techniquesmasticationsleep bruxismultrasonography

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Area of Science:

  • Dentistry
  • Biomedical Engineering
  • Diagnostic Imaging

Background:

  • Bruxism, a common parafunctional activity, can affect masseter muscle properties.
  • Shear wave elastography (SWE) offers a noninvasive method to assess muscle stiffness.
  • The diagnostic utility of SWE for bruxism requires further validation.

Purpose of the Study:

  • To evaluate the diagnostic performance of SWE in identifying bruxism.
  • To compare masseter muscle stiffness between individuals with and without bruxism.

Main Methods:

  • A comparative study involving a bruxism group and a healthy control group.
  • Diagnosis of bruxism followed the diagnostic criteria for temporomandibular disorders (DC/TMD).
  • Masseter muscle length, thickness, and stiffness (using SWE) were measured.

Main Results:

  • Patients with bruxism exhibited shorter masseter muscle length and significantly higher SWE values compared to controls.
  • A cutoff SWE value of 13.55 kPa demonstrated 86.0% sensitivity and 87.5% specificity for bruxism diagnosis.
  • The study's larger sample size enhances the reliability of the findings.

Conclusions:

  • SWE is a highly effective diagnostic tool for identifying bruxism.
  • The established 13.55 kPa threshold aids in distinguishing individuals with bruxism with high accuracy.
  • SWE shows potential as a valuable objective tool in clinical bruxism assessment.