1999 Fiscal Year Final Research Report Summary
The Influence of Mandibular Deviation on Body Functions
| Project/Area Number |
09470436
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Osaka University |
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Principal Investigator |
TAKASHIMA Fumio Faculty of Dentistry, Osaka University Associate Professor, 歯学部, 助教授 (50144514)
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| Co-Investigator(Kenkyū-buntansha) |
HIGASHI Kazuo Faculty of Dentistry, Osaka University Research Associate, 歯学部, 助手 (70252690)
MARUYAMA Takao Faculty of Dentistry, Osaka University Professor, 歯学部, 教授 (20028757)
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| Project Period (FY) |
1997 – 1999
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| Keywords | Mandibular Deviation / Body Functions / Indefinite Symptoms of Disease |
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| Research Abstract |
The purpose of this study was to investigate the effect to the human body functions with correcting the mandibular position. We evaluated the 3D asymmetry of faces, the microcirculation of the blood flow of fingers, the heart rate variability calculated from the blood pressure fluctuation, the skin surface temperature of fingers, the grip strength, and the body anteflexion on standing, in TMD patients with the mandibular deviation and normal subjects.
The results were summarized as follows :
1. The 3D asymmetry of faces in the patients is severer than that in normal.
2. When the mandibular position of normal subjects was changed, the microcirculation of the blood flow of fingers was changed after moving necks.
3. The LF/HF ratio of spectral analysis for the heart rate variability in the patients was significantly lower than in normal. It was suggested that the cardiovascular regulation of the patients was damaged. In the patients, the LF/HF ratio after correcting the mandibular position was significantly higher than before, and it was close to the ratio in normal.
4. Correcting the mandibular position of the patients made the skin surface temperature of the fingers rise in the right hands in 4 of 6 and in the left hands in 3 of 6, and fall in the right hands in 0 of 6 and in the left hands in 2 of 6.
5. Correcting the mandibular position of the patients made the grip strength increase in the handedness in 13 of 18 and in the other hand in 9 of 18.
6. Correcting the mandibular position of the patients made the rate of the body anteflexion on standing increase in 11 of 16.
From the results, it is suggested that the body functions are influenced by the mandibular deviation.
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Research Products
(18 results)
