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Finite Element Analysis of External, Middle and Inner Ear under Loads through Temporomandibular Joint

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Abstract:

A structural analysis model including the temporomandibular joint (TMJ), external auditory canal, tympanic membrane, auditory ossicles and cochlea was made. Loads through the TMJ were applied to this model in three-dimensional finite element analysis. It became clear that stress concentration occurred at the lower portion of the external auditory canal, superior tympanic portion (attic), incus long crus, stapes crus and inlet of cochlea. The lower portion of the external auditory canal and attic are favourite sites of cholesteatoma (pearl tumour). Incus long crus and stapes crus are favourite sites of auditory ossicular defects, which are the cause of otitis media. Damage of the cochlea entrance causes high-frequency hearing loss which is age-related.

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Proceedings of Precision Engineering and Nanotechnology View Preview

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Periodical:

Key Engineering Materials (Volume 516)

Pages:

457-462

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.516.457

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Online since:

June 2012

Authors:

Takao Higashimachi, Ryuzo Toriya, Kenichi Suga

Keywords:

Auditory Ossicles, Eardiseases, Finite Element Method (FEM), Geometric Modelling of Human Ear, Stress Concentration

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] T. Higashimachi, K. Suga, H. Sasahara, Structural mechanical analysis and evaluation for extension of teeth lifetime, J. Jpn Soc. Prec. Eng. 75 (2009) 418-423.

DOI: 10.2493/jjspe.75.418

Google Scholar

[2] K. Gyo, S. Nishihara and S. Murakami, Journal of Otolaryngology, Head and Neck Surgery, 13, (1997)1185-1190.

Google Scholar

[3] T. Morimitsu, Illustrated ENT, Bunkodo Illustrated Basic Series, third ed., Bunkodo, Tokyo, (2007).

Google Scholar

[4] B.S. Elpern, O. Greisen, H.C. Andersen, Experimental studies on sound transmission in the human ear, Acta Otolaryngol. 60 (1965) 223-230.

DOI: 10.3109/00016486509127004

Google Scholar