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Articular disc of the temporomandibular ...


The articular disc of the temporomandibular joint is a strong fibroelastic oval disc that is concave inferiorly and concavoconvex above. It consists of strong collagen fibers with a blend, especially in its anterior and posterior aspects, of elastic fibers. Unlike other joint discs, it does not have any cartilage in its composition. The disc is attached peripherally to the joint capsule and completely separates the capsule into superior and inferior spaces. It is strongly bound to the lateral and medial aspects of the mandibular condyle and closely tracts the movement of the condyle. It functions as a deformable pad between the noncongruent articular surfaces of the joint.


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