2000 Fiscal Year Final Research Report Summary
SWALLOWING FUNCTION AND AGING
| Project/Area Number |
11671944
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
補綴理工系歯学
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| Research Institution | HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO |
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Principal Investigator |
HIRAI Toshihiro HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO, SCHOOL OF DENTISTRY, PROFESSOR, 歯学部, 教授 (80014273)
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| Co-Investigator(Kenkyū-buntansha) |
IKEDA Yasuhiro HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO, SCHOOL OF DENTISTRY, ASSISTANT PROFESSOR, 歯学部, 講師 (10193195)
KOSHINO Hisashi HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO, SCHOOL OF DENTISTRY, ASSISTANT PROFESSOR, 歯学部, 講師 (90186669)
ISHIJIMA Tsutomu HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO, SCHOOL OF DENTISTRY, ASSOCIATE PROFESSOR, 歯学部, 助教授 (60211041)
HATTORI Masayuki HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO, SCHOOL OF DENTISTRY, ASSISTANT, 歯学部, 助手 (70316264)
YOKOYAMA Yuichi HEALTH SCIENCES UNIVERSITYB OF HOKKAIDO, SCHOOL OF DENTISTRY, ASSISTANT, 歯学部, 助手 (50295903)
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| Project Period (FY) |
1999 – 2000
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| Keywords | Swallowing Function / Swallowing Sound / Tongue Movement / Ultrasound Diagnostic Equipment / Denture / 画像解析 |
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| Research Abstract |
In order to develop an objective evaluating method for the swallowing function, the tongue movements using a general-purpose ultra-sound diagnostic equipment and swallowing sounds using a heart sound microphone in deglutition of ten normal healthy dentate and two edentulous patients were observed and analyzed. The tongue movement and swallowing sounds recorded on the recording paper was analyzed by plotting of five inflection points (T1, T2, T3, T4 and T5) of the movement curve and two beginning points of swallowing sounds (S1 and S2) using a digitizer.
There were no significant differences in all parameter in each measurement. It was confirmed that all the data had repeatability.
There was significant correlation between T4 and S1, T4 and S2 statistically (p<0.001). S1 was always ahead of T4 statistically (p<0.001). In the relationship between T4 and S1 in three edentulous patients, the time lag of T4 and S1 was extended in case of with denture in comparison with without denture. When an edentulous patient is not using his denture, swallowing is speculated to be difficult because the mandible has to be risen upper more than necessity.
From this investigation, it is suggested that our evaluating method could be useful for diagnosis of swallowing function.
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