日本口腔外科学会雑誌
Online ISSN : 2186-1579
Print ISSN : 0021-5163
マウスガードのスポーツ外傷予防効果
オトガイ部打撲を想定した有限要素法解析
住吉 周平南部 敏之本田 武司下田 恒久宮島 陽一堤 定美
著者情報
ジャーナル フリー

1996 年 42 巻 12 号 p. 1192-1199

詳細
抄録

Although mouthguards are used to protect the stomatognathic region in contact sports, their biomechanical efficacy has not been proved. The finite element method (FEM) is widely used in biomechanical studies involving static stress analyses. Studies of mouthguards especially require dynamic analyses. We performed an impact analysis of the maxillofacial region with the use of a pseudo 3 -D FEM model consisting of the head and neck in order to verify the efficacy of two mouthguard models against impact on the chin.
The effects of impact on the maxillary central incisors and the neck of the condyle increased remarkably when the mouth was open. With the use of a mouthguard, the efficacy of impact absorption extended to the maxillary central incisors and the lateral margin of the aperture. A soft-type mouthguard was more effective than a hard-type one. With the use of a mouthguard, stress was concentrated at the neck of the condyle. The use of a mouthguard decreased stress to regions adjacent to the cerebrospinal area. These results suggest that mouthguards are effective in preventing brain concussion.

著者関連情報
© 社団法人日本口腔外科学会
前の記事 次の記事
feedback
Top