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Related Experiment Videos

[Articular disk degeneration in the TMJ].

B Norer, A Pomaroli, O Dietze

    Deutsche Zeitschrift Fur Mund-, Kiefer- Und Gesichts-Chirurgie
    |July 1, 1989
    PubMed
    Summary

    Degenerative changes in the temporo-mandibular joint articular disc begin in specific areas, progressing through distinct stages. This study outlines a degenerative development series for the articular disc.

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    Four years experience with teleneuropathology.

    Journal of telemedicine and telecare·2007

    Area of Science:

    • Temporomandibular joint (TMJ) disorders
    • Articular disc degeneration
    • Histopathology

    Context:

    • Degenerative changes in the temporo-mandibular joint (TMJ) articular disc are common.
    • Understanding the progression of these changes is crucial for diagnosis and treatment.
    • Previous studies have not fully elucidated the specific sites and sequential development of disc degeneration.

    Purpose:

    • To identify and characterize the preferred sites and sequential stages of degenerative changes in the temporo-mandibular joint articular disc.
    • To establish a degenerative development series for the articular disc based on arthroscopic, macroscopic, and histological findings.

    Summary:

    • Arthroscopic, macroscopic, and histological examination of 228 temporo-mandibular joints revealed a degenerative development series in the articular disc.
    • Degeneration preferentially initiates in the antero-lateral fibrocartilaginous section, the lateral transition zone, and the postero-central bilaminar zone.
    • The process involves collagen fiber fragmentation, matrix destruction, thinning, rupture, and dehiscence, with distinct patterns in the fibrocartilaginous and bilaminar zones.

    Impact:

    • Provides a detailed understanding of the topographical and sequential aspects of articular disc degeneration.
    • Establishes a framework for identifying early-stage degenerative changes in the temporo-mandibular joint.
    • May inform future research on the etiology and therapeutic interventions for temporo-mandibular joint disorders.

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