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  • Title: Muscle attachment to the lateral aspect of the articular disk of the human temporomandibular joint.
    Author: Loughner BA, Gremillion HA, Larkin LH, Mahan PE, Watson RE.
    Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 1996 Aug; 82(2):139-44. PubMed ID: 8863302.
    Abstract:
    OBJECTIVE: To investigate the anatomic attachments to the lateral aspect of the anterior band of the human temporomandibular joint articular disk. MATERIAL AND METHODS: Sixteen human cadaver half-heads were dissected and examined macroscopically. RESULTS: No direct attachment was observed between the deep masseter muscle and the temporomandibular joint articular disk. In one specimen, a small band of the anterior temporalis muscle was directly attached to the lateral aspect of the temporomandibular joint disk; whereas, on the same specimen, the attachment of the superior belly of the lateral pterygoid muscle was a comparatively large band. In another specimen, the lateral pterygoid muscle passed in an anterolateral direction. CONCLUSIONS: The masseter muscle has no functional significance in the biomechanics of temporomandibular joint disk displacement. The anterior temporalis muscle may have functional significance when it is accompanied by an anterolaterally divergent lateral pterygoid muscle.
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