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ID 114281
著者
Barrientos, Eva University of Oviedo
Pelayo, Fernandez University of Oviedo
Lamela-Rey, María Jesús University of Oviedo
Fernández-Canteli, Alfonso University of Oviedo
キーワード
Temporomandibular joint
Soft tissues
Viscoelasticity
Biomechanical characterization
Experimental techniques
Shear
資料タイプ
学術雑誌論文
抄録
In this study, shear relaxation properties of the porcine temporomandibular joint (TMJ) disc are investigated. Previous studies have shown that, in fatigue failure and damage of cartilage and fibrocartilage, shear loads could be one of the biggest contributors to the failure. The aim of the present study is to develop an evaluation method to study shear properties of the disc and to do a mathematical characterization of it. For the experiments, twelve porcine discs were used. Each disc was dissected from the TMJ and, then, static strain control tests were carried out to obtain the shear relaxation modulus for the central region of the discs. From the results, it was found that the disc presents a viscoelastic behavior under shear loads. Relaxation modulus decreased with time. Shear relaxation was 10% of the instantaneous stress, which implies that the viscous properties of the disc cannot be neglected. The present results lead to a better understanding of the discs mechanical behavior under realistic TMJ working conditions.
掲載誌名
Journal of Biomechanics
ISSN
00219290
cat書誌ID
AA00694200
AA11533269
出版者
Elsevier
93
開始ページ
126
終了ページ
131
発行日
2019-07-02
権利情報
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
著者版
部局
歯学系