Document Detail

Videoendoscopic measurement of food bolus formation for quantitative evaluation of masticatory function.
MedLine Citation:
PMID:  21296046     Owner:  NLM     Status:  MEDLINE    
PURPOSE: In the field of prosthodontics, many methods for evaluating the masticatory function involve ejection of the food bolus from the mouth. In addition, these methods could not evaluate mastication and swallowing function comprehensively. The present study aimed to quantitatively evaluate masticatory functions during a series of masticatory and swallowing movements by using videoendoscopy.
METHODS: Subjects are ten healthy dentulous adults without dysphagia. The test foods used were 2-colored (green and white) molded rice and uirou (rice cake). The test foods were consumed under the restriction on the number of mastication (10, 15, 20, and 30), and under the instruction to "chew normally" or "chew well". The masticatory function was evaluated by observing the food bolus in the oropharynx with a videoendoscope. The bolus formation index (BFI), in terms of the degree of mixing of the green and white parts, was quantitatively determined using an image measurement software.
RESULTS: The BFI of the rice and uirou increased significantly with increase in the number of mastication times (p<0.01). A significantly correlation coefficient was observed between the BFI and the number of mastication (0.84 for rice and 0.89 for uirou). The BFI obtained by "chewing well" was significantly higher than that obtained by "chewing normally" (p<0.01).
CONCLUSIONS: The results of this study confirm that the endoscopic measurement of food bolus formation by mastication in terms of the color tones of 2-colored test foods enables quantitative evaluation of the masticatory function during a series of masticatory and swallowing movements.
Risako Abe; Junichi Furuya; Tetsuya Suzuki
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-02-05
Journal Detail:
Title:  Journal of prosthodontic research     Volume:  55     ISSN:  2212-4632     ISO Abbreviation:  J Prosthodont Res     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-06-13     Completed Date:  2011-11-21     Revised Date:  2012-09-11    
Medline Journal Info:
Nlm Unique ID:  101490359     Medline TA:  J Prosthodont Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  171-8     Citation Subset:  D; IM    
Copyright Information:
Copyright © 2011 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved.
Division of Removable Prosthodontics, Department of Prosthodontics, School of Dentistry, Iwate Medical University, 1-3-27 Chuodori, Morioka, Iwate 020-8505, Japan.
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MeSH Terms
Deglutition / physiology
Endoscopy, Gastrointestinal*
Mastication / physiology*
Videodisc Recording*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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