2012 Fiscal Year Final Research Report
Adjustment of Food Consistency just before the Swallowing
| Project/Area Number |
23792505
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Social dentistry
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| Research Institution | Niigata University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Keywords | 老年歯科学 / 摂食・嚥下障害学 |
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| Research Abstract |
The present study exmined how food consistency affected patterns of masticaotory muscle activity during chewing and swallowing. Jaw closing muscle activity decreased in a process of chewing, depending on the hardness of food bolus while jaw opening muscle activity changed depending on changes in hardness, cohesiveness and adhesiveness. In transition from chewing to swallowing, tongue exhibited unique patterns to transport the bolus from the oral cavity to the pharynx to initiate swallowing reflex.
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