The Device of Ethylene Vinyl Acetate Sheet for Trismus Caused by Bilateral Mandible Fractures

Yoshiaki Ihara; Yuka Nakamichi; Yuichi Tashimo; Shinji Nozue; Kota Hayashi; Mitsunori Ishiguro; Koji Takahashi

doi:10.1155/2021/8340485

Case Reports in Dentistry (Jan 2021)

The Device of Ethylene Vinyl Acetate Sheet for Trismus Caused by Bilateral Mandible Fractures

Yoshiaki Ihara,
Yuka Nakamichi,
Yuichi Tashimo,
Shinji Nozue,
Kota Hayashi,
Mitsunori Ishiguro,
Koji Takahashi

Affiliations

Yoshiaki Ihara: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan
Yuka Nakamichi: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan
Yuichi Tashimo: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan
Shinji Nozue: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan
Kota Hayashi: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan
Mitsunori Ishiguro: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan
Koji Takahashi: Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan

DOI: https://doi.org/10.1155/2021/8340485
Journal volume & issue: Vol. 2021

Abstract

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Trismus is commonly caused by temporomandibular joint disorders and maxillofacial fractures. We report the case of a 62-year-old woman with trismus and difficulty in mastication caused by bilateral mandibular fractures. She had a maximal interincisal opening distance (MID) of 22 mm. Mouth-opening training was administered using a novel dental mouth-training device custom-made using ethylene vinyl acetate sheets and according to the dentition and extent of mouth-opening of the patient. After 2 months of training, the MID increased to 42 mm. With adequate training, this device is effective in treating trismus due to scarring.

Published in Case Reports in Dentistry

ISSN: 2090-6447 (Print); 2090-6455 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Medicine: Dentistry
Website: https://onlinelibrary.wiley.com/journal/2415

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