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Updated: Aug 11, 2026

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A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
Published on: January 11, 2018
Internal derangement of the temporomandibular joint: morphologic description with correlation to joint function
Oral Surgery, Oral Medicine, and Oral Pathology
|April 1, 1985
Summary
Internal derangement of the temporomandibular joint (TMJ) can lead to disk deformation, especially with anterior disk displacement. Early treatment is recommended to prevent further damage and joint dysfunction.
Area of Science:
- Temporomandibular Joint Disorders
- Morphological Analysis
- Biomechanical Research
Background:
- Internal derangement of the temporomandibular joint (TMJ) is often assessed via arthrography, focusing on anterior disk displacement.
- Clinical observations suggest disk deformation is common in TMJ internal derangement, necessitating a detailed morphological study.
Purpose of the Study:
- To investigate the relationship between temporomandibular joint morphology, internal derangement, and joint function.
- To systematically analyze morphologic alterations associated with TMJ internal derangement.
Main Methods:
- Examination of 58 randomly selected autopsy specimens of the temporomandibular joint.
- Assessment of disk morphology, internal derangement status, and joint function.
Main Results:
- Joints with superior disk position showed minimal morphologic alterations.
- Partially anterior disk position was associated with 31% disk deformation, primarily in the anterior disk region.
- Completely anterior disk position correlated with 77% disk deformation and 65% articular surface irregularities.
- Anterior disk position appears to precede disk deformation.
Conclusions:
- Anterior disk displacement is a precursor to disk deformation in temporomandibular joint internal derangement.
- Disk deformation is closely linked to impaired joint function.
- Early, causal treatment for symptomatic TMJ internal derangement is crucial to prevent disk deformation and preserve joint function.
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