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Related Experiment Video

Updated: Jan 13, 2026

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Understanding the Internal Derangement and Degenerative Joint Disease Process Through Radiographic Imaging.

Dania Tamimi1

  • 1Private Practice, Orlando, FL, USA.

Neuroimaging Clinics of North America
|October 29, 2025
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Summary
This summary is machine-generated.

Temporomandibular joint (TMJ) disorders arise from biomechanical tissue failure. This article details TMJ degeneration on MR imaging and CT/CBCT for accurate diagnosis.

Keywords:
Degenerative joint diseaseDisc displacement with reductionDisc displacement without reductionJoint effusionTMJ disc adhesionTMJ internal derangementTMJ ligament perforationTMJ osteoarthritis

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Area of Science:

  • Biomedical Engineering
  • Radiology
  • Dentistry

Background:

  • Intracapsular temporomandibular joint (TMJ) disorders are common clinical issues.
  • These disorders often result from the biomechanical failure of articular tissues.
  • They represent a continuum from soft tissue failure (internal derangement) to hard tissue failure (degenerative joint disease).

Purpose of the Study:

  • To elucidate the process of biomechanical breakdown in the TMJ.
  • To describe the radiographic appearance of TMJ disorders along the continuum of degeneration.
  • To assist radiologists in identifying and diagnosing these conditions using MR imaging and CT/CBCT.

Main Methods:

  • Review of radiographic findings on MR imaging.
  • Analysis of CT/CBCT scans for hard tissue changes.
  • Correlation of imaging findings with the biomechanical failure continuum.

Main Results:

  • Radiographic features of internal derangement and degenerative joint disease (DJD) are presented.
  • Specific imaging findings indicative of biomechanical breakdown are detailed.
  • The continuum of TMJ tissue failure is visualized across different imaging modalities.

Conclusions:

  • Radiologists can identify TMJ biomechanical breakdown by understanding the continuum of tissue failure.
  • MR imaging and CT/CBCT provide essential data for diagnosing TMJ disorders.
  • Accurate radiographic interpretation aids referring dentists in clinical decision-making.