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Paper Abstract and Keywords
Presentation 2007-05-25 12:55
Reproduction of periodontal masseteric reflex in autonomous jaw-movement simulator
Naoya Yamagishi, Masaki Kojima, Toyohiko Hayashi, Yasuo Nakamura (Niigata Univ), Shin-ichi Nakajima (Niigata Institute of Technology), Makoto Inoue (Niigata Univ) MBE2007-7
Abstract (in Japanese) (See Japanese page) 
(in English) In order to clarify jaw-movement mechanism, we have been developing an autonomous jaw-movement simulator, JSN/3A, with a life-like structure and control scheme. In chewing movement, several reflexes using periodontal mechanoreceptors are known to occur during biting phase. Among them, periodontal masseteric reflex occurring immediately after tooth contact is of particular importance for chewing functions. This reflex is known to have two different phases, inhibitory phase followed by excitatory phase. Their detailed functions in chewing, however, are still unknown. In an attempt to clarify them, we reproduced this reflex on JSN/3A using data of a 3-D bite-force sensor mounted on the upper first molars. Empirical results suggested that the inhibitory phase tended to reduce a rapid increase of the bite force immediately after tooth contact, while the excitatory phase tended to accelerate the increase of the bite force after the inhibitory phase.
Keyword (in Japanese) (See Japanese page) 
(in English) Autonomous jaw-movement simulator / reflex / periodontal masseteric reflex / open-close movement / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 72, MBE2007-7, pp. 25-28, May 2007.
Paper # MBE2007-7 
Date of Issue 2007-05-18 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee MBE  
Conference Date 2007-05-25 - 2007-05-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyama Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2007-05-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Reproduction of periodontal masseteric reflex in autonomous jaw-movement simulator 
Sub Title (in English)  
Keyword(1) Autonomous jaw-movement simulator  
Keyword(2) reflex  
Keyword(3) periodontal masseteric reflex  
Keyword(4) open-close movement  
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1st Author's Name Naoya Yamagishi  
1st Author's Affiliation Niigata University (Niigata Univ)
2nd Author's Name Masaki Kojima  
2nd Author's Affiliation Niigata University (Niigata Univ)
3rd Author's Name Toyohiko Hayashi  
3rd Author's Affiliation Niigata University (Niigata Univ)
4th Author's Name Yasuo Nakamura  
4th Author's Affiliation Niigata University (Niigata Univ)
5th Author's Name Shin-ichi Nakajima  
5th Author's Affiliation Niigata Institute of Technology (Niigata Institute of Technology)
6th Author's Name Makoto Inoue  
6th Author's Affiliation Niigata University (Niigata Univ)
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Speaker Author-1 
Date Time 2007-05-25 12:55:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2007-7 
Volume (vol) vol.107 
Number (no) no.72 
Page pp.25-28 
#Pages 4 
Date of Issue 2007-05-18 (MBE) 

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