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Fiber Bragg Grating based bite force measurement

Umesh, Sharath and Padma, Srivani and Asokan, Sundarrajan and Srinivas, Talabattula (2016) Fiber Bragg Grating based bite force measurement. In: JOURNAL OF BIOMECHANICS, 49 (13). pp. 2877-2881.

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Official URL: http://dx.doi.org/10.1016/j.jbiomech.2016.06.036


The present study reports an in vivo, novel methodology for the dynamic measurement of the bite force generated by individual tooth using a Fiber Bragg Grating Bite Force Recorder (FBGBFR). Bite force is considered as one of the major indicators of the functional state of the masticatory system, which is dependent on the craniomandibular structure comprising functional components such as muscles of mastication, joints and teeth. The proposed FBGBFR is an intra-oral device, developed for the transduction of the bite force exerted at the occlusal surface, into strain variations on a base plate, which in turn is sensed by the FBG sensor bonded over it. The FBGBFR is calibrated against a Micro Universal Testing Machine (UTM) for 0-900 N range and the resolution of the developed FBGBFR is found to be 0.54 N. 36 volunteers (20 males and 16 females) performed the bite force measurement test at molar, premolar and incisor tooth on either side of the dental arch and the obtained results show clinically relevant bite forces varying from 176 N to 635 N. The bite forces obtained from the current study for a substantial sample size, show that the bite forces increases along the dental arch from the incisors towards the molars and are found to be higher in male than in female. The FBG sensor element utilized in FBGBFR is electrically passive, which makes it a safe in vivo intra-oral device. Hence the FBGBFR is viable to be employed in clinical studies on biomechanics of oral function. (C) 2016 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 03 Dec 2016 09:24
Last Modified: 03 Dec 2016 09:24
URI: http://eprints.iisc.ac.in/id/eprint/55347

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