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ID 114279
タイトル別表記
Compressive properties of the whole TMJ disc
著者
Barrientos, Eva University of Oviedo
Pelayo, Fernández University of Oviedo
Lamela-Rey, María Jesús University of Oviedo
Fernández-Canteli, Alfonso University of Oviedo
キーワード
TMJ
Temporomandibular joint
Soft tissues
Viscoelasticity
Biomechanical characterization
Experimental techniques
資料タイプ
学術雑誌論文
抄録
In this study, the dynamic and static compressive properties of the whole porcine temporomandibular joint (TMJ) disc were investigated. The aim of the study was to develop a new simple method for the evaluation of joint viscoelasticity, enabling examination of the load-bearing capacity and joint flexibility of the entire disc. For the experiments, a novel testing fixture that reproduces the condylar and fossa surfaces of the TMJ was developed to replicate TMJ disc geometry. Ten porcine discs were used in the experiments. Each disc was dissected from the TMJ and sinusoidal compressive strain was applied to obtain the storage and loss moduli. Static strain control tests were carried out to obtain the relaxation modulus. The result of static and dynamic tests indicated that the whole disc presented viscoelastic behavior under compression. Storage and loss moduli increased with frequency and the relaxation modulus decreased over time. The loss tangent showed less frequency dependence, with values ranging from 0.2 to 0.3, suggesting that the viscous properties of the disc cannot be neglected. These results provide a better understanding of whole disc mechanical compression behavior under realistic TMJ working conditions.
掲載誌名
Journal of the Mechanical Behavior of Biomedical Materials
ISSN
17516161
cat書誌ID
AA12344261
出版者
Elsevier
57
開始ページ
109
終了ページ
115
発行日
2015-12-14
権利情報
© 2015. 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