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Original Article

Amianthoid Fibres in Muscle Tissue Associated with Tempromandibular Joint Ankylosis

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Pages 571-576 | Accepted 17 May 1986, Published online: 10 Jul 2009
 

Abstract

The masseter and temporalis muscles were studied ultrastructurally in 3 patients having extra and intraarticular ankylosis of the TMJ. Amianthoid fibres (thick collagen fibres) varying from 280-430 nm in diameter were found in the connective tissue of both muscles. These fibres appeared to form by fusion of collagen fibrils of normal thickness rather than representing an active dynamic process. The presence of amianthoid fibres in these muscles may account for the restricted mouth opening associated with TMJ ankylosis and could be of some value in future management of this condition.

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