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Masticatory muscle tendon-aponeurosis hyperplasia: A new clinical entity of limited mouth opening

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ABSTRACT

Limited mouth opening is a common health problem that interferes with eating, makes examination of the oral cavity difficult, and may increase the mortality rate during emergency intubation. Here we introduce a disease designated as masticatory muscle tendon-aponeurosis hyperplasia, which is a new clinical condition of limited mouth opening. Most oral surgeons and dentists are still unaware of this disease condition, thus increasing the risk of incorrect diagnosis as some other disease, such as temporomandibular joint disorder. We will review the clinical features, epidemiology, pathophysiology, etiology, diagnosis, treatment, and prognosis of this disease and also appraise the literature available on the subject.

No MeSH data available.


Tendon and aponeurosis in the first postoperative year [33]. (A) Before surgery. (B) After surgery (1 year later). TR, 3800.00; TE, 13.00 (A and B). (C) Before surgery. (D) After surgery (1 year later). TR, 4420.00; TE, 87.00 (C and D).
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fig0030: Tendon and aponeurosis in the first postoperative year [33]. (A) Before surgery. (B) After surgery (1 year later). TR, 3800.00; TE, 13.00 (A and B). (C) Before surgery. (D) After surgery (1 year later). TR, 4420.00; TE, 87.00 (C and D).

Mentions: Long-term satisfactory results can be obtained by continuous mouth opening training. Our preliminary study revealed that, although immediate postoperative occlusal force was less than half the standard force, occlusal force returned to the normal range within 6 months (unpublished data). After 1 year, the temporal muscle was observed to reattach to the resected stump of the bone (Fig. 6A and B) [33]. A reduction in the cross-sectional area of the masseter muscle was observed, despite resection of only the tendon without the muscle (Fig. 6C and D).


Masticatory muscle tendon-aponeurosis hyperplasia: A new clinical entity of limited mouth opening
Tendon and aponeurosis in the first postoperative year [33]. (A) Before surgery. (B) After surgery (1 year later). TR, 3800.00; TE, 13.00 (A and B). (C) Before surgery. (D) After surgery (1 year later). TR, 4420.00; TE, 87.00 (C and D).
© Copyright Policy - CC BY-NC-ND
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5382786&req=5

fig0030: Tendon and aponeurosis in the first postoperative year [33]. (A) Before surgery. (B) After surgery (1 year later). TR, 3800.00; TE, 13.00 (A and B). (C) Before surgery. (D) After surgery (1 year later). TR, 4420.00; TE, 87.00 (C and D).
Mentions: Long-term satisfactory results can be obtained by continuous mouth opening training. Our preliminary study revealed that, although immediate postoperative occlusal force was less than half the standard force, occlusal force returned to the normal range within 6 months (unpublished data). After 1 year, the temporal muscle was observed to reattach to the resected stump of the bone (Fig. 6A and B) [33]. A reduction in the cross-sectional area of the masseter muscle was observed, despite resection of only the tendon without the muscle (Fig. 6C and D).

View Article: PubMed Central - PubMed

ABSTRACT

Limited mouth opening is a common health problem that interferes with eating, makes examination of the oral cavity difficult, and may increase the mortality rate during emergency intubation. Here we introduce a disease designated as masticatory muscle tendon-aponeurosis hyperplasia, which is a new clinical condition of limited mouth opening. Most oral surgeons and dentists are still unaware of this disease condition, thus increasing the risk of incorrect diagnosis as some other disease, such as temporomandibular joint disorder. We will review the clinical features, epidemiology, pathophysiology, etiology, diagnosis, treatment, and prognosis of this disease and also appraise the literature available on the subject.

No MeSH data available.