A new type of mouth-opening exerciser

Yuji MURAKAMI; Nobuo INOUE; Mohiuddin AHEMED; Mutsumi YASUDA; Hiro-o YAMAGUCHI; Yasunori TOTSUKA

doi:10.5794/jjoms.41.175

Yuji MURAKAMI, Nobuo INOUE, Mohiuddin AHEMED, Mutsumi YASUDA, Hiro-o YAMAGUCHI, Yasunori TOTSUKA

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Keywords: mouth-opening exerciser, mouth-opening exercise, trismus, temporomandibular joint, ankylosis

JOURNAL FREE ACCESS

1995 Volume 41 Issue 2 Pages 175-177

DOI https://doi.org/10.5794/jjoms.41.175

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Abstract

A newly devised mouth-opening exerciser is presented. It is made of a 5-mm thick acrylic resin plate and is wedge-shaped with a cut tip. The exerciser has 3-mm long stairs so that patients can notice improvement in mouth-opening during exercise. Every stair has an extremely gentle slope so that it permits gradual mouth opening without severe pain. This exerciser was very effective for postoperative mouth opening exercises in patients with severe trismus due to temporomandibular joint ankylosis and fibrosis after maxillectomy.

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