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Related Experiment Videos

Zygomatic exostosis.

T Boland, O Ross Beirne

    International Journal of Oral Surgery
    |April 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    A rare case of restricted jaw opening caused by bony growths was successfully treated with surgery. This condition, involving zygomatic exostosis and coronoid process hyperplasia, is exceptionally uncommon.

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    Area of Science:

    • Oral and Maxillofacial Surgery
    • Orthopedic Surgery
    • Medical Imaging

    Background:

    • Restricted mandibular opening, or limited jaw movement, can significantly impair function.
    • Causes include trauma, infection, and developmental abnormalities.
    • Zygomatic exostosis and coronoid process hyperplasia are rare contributors to jaw restriction.

    Observation:

    • A patient presented with severe restricted mandibular opening.
    • Computed tomography (CT) imaging identified zygomatic exostosis and hyperplasia of the coronoid process.
    • A pseudojoint formation was noted between the exostosis and the enlarged coronoid process.

    Findings:

    • The bony restriction was surgically excised via an intraoral approach.
    • Post-operative recovery was successful, restoring normal mandibular function.

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  • This case represents one of only four documented instances in medical literature.

    • Implications:

    • Highlights the importance of advanced imaging in diagnosing rare causes of temporomandibular joint disorders.
    • Demonstrates the efficacy of intraoral surgical techniques for correcting complex bony obstructions.
    • Contributes to the limited understanding and management strategies for zygomatic exostosis and coronoid process hyperplasia causing jaw restriction.