Masticatory Muscle Tendon-aponeurosis Hyperplasia Accompanied by Limited Mouth Opening

Overview

Journal J Korean Assoc Oral Maxillofac Surg

Date 2019 Sep 12

PMID 31508348

Citations 2

Authors

Tetsuya Yoda

Affiliations

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Abstract

Patients with masticatory muscle tendon-aponeurosis hyperplasia (MMTAH) experience limited mouth opening due to restricted muscle extension. Hyperplastic aponeurosis and tendons lead to the restriction of muscle extension. The criteria for the diagnosis of MMTAH are limited mouth opening that progresses very slowly from adolescence, intraoral palpation reveals a hard cord-like structure along the overhang of the anterior border of the masseter muscle on maximum mouth opening, and a square mandible. Conservative treatment, including pharmacotherapy, occlusal splint and physical therapy are ineffective. The standard therapy is surgical treatment, such as anterior partial aponeurectomy of the masseter muscle and coronoidectomy. The long-term results are very satisfying.

Citing Articles

The Usefulness of Mandibular Anglectomy in Patients With Masticatory Muscle Tendon-Aponeurosis Hyperplasia: A Preliminary Single-Center Survey.

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Masticatory muscle tendon-aponeurosis hyperplasia that was initially misdiagnosed for polymyositis: a case report and review of the literature.

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