| Presentation | 1999/3/19 Functions ot the Digastic and Posterior Temporalis Muscles in the Control of Temporomandibular Joint Loading : A static Analysis Using a Two-dimensional Rigid-Body-Spring Model Makoto ABE, Toyohiko HAYASHI, Ken-ichi ITOH, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Masticatory or bite forces applied to the teeth are known to generate compressive forces in the temporomandibular joint (TMJ), which is referred to as "TMJ loading". Since excessive TMJ loading deteriorates articular functions, it is considered to be controlled, to a certain extend, by the stomatognathic system. In an attempt to clarify this control mechanism, we have been analysing the controllability of TMJ loading by the coordinative activities of the masticatory muscles, employing a static two-dimensional model including a rigid-body spring model (RBSM) of the articular disk. This paper then analyzed functions of the activation of the posterior temporalis and digastric muscles during biting in the control of TMJ loading. Consequently, the activation of the posterior temporalis muscle was verified to reduce the minimum TMJ-loading, while that of the digastric muscle was verified to increase TMJ loading, under the condition that the bite force and the force vector of the lateral pterygoid muscle are both constant. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | TMJ loading / static analysis / rigid-body spring model (RBSM) / posterior temporalis muscle / digastric muscle |
| Paper # | MBE98-145 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 1999/3/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Functions ot the Digastic and Posterior Temporalis Muscles in the Control of Temporomandibular Joint Loading : A static Analysis Using a Two-dimensional Rigid-Body-Spring Model |
| Sub Title (in English) | |
| Keyword(1) | TMJ loading |
| Keyword(2) | static analysis |
| Keyword(3) | rigid-body spring model (RBSM) |
| Keyword(4) | posterior temporalis muscle |
| Keyword(5) | digastric muscle |
| 1st Author's Name | Makoto ABE |
| 1st Author's Affiliation | Graduate School of Science and Technology, Niigata University() |
| 2nd Author's Name | Toyohiko HAYASHI |
| 2nd Author's Affiliation | Department of Biocybernetics, Faculty of Engineering, Niigata University |
| 3rd Author's Name | Ken-ichi ITOH |
| 3rd Author's Affiliation | Department of Information and Electronics Engineering, Faculty of Engineering, Niigata Institute of Technology |
| Date | 1999/3/19 |
| Paper # | MBE98-145 |
| Volume (vol) | vol.98 |
| Number (no) | 672 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |