| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
It is still not well-known about the features and mechanisms of pain caused by the orthodontic tooth movement. The purposes of this study are to characterize the pain associated with orthodontic tooth movement objectively by measuring somatosensory evoked magnetic fields.
The result of the study suggested that the transmission speed of twenty-four hours after the orthodontic tooth movement was faster than that of non-orthodontic tooth movement in a part of subjects. And, the comparison of the sense between the upper and the lower first molar’s periodontal ligaments generated by the mechanical stimulation showed the transmission speed of the lower first molar was faster and its signal strength was stronger than those of the upper first molar. Thus, the sense of the lower first molar periodontal ligaments has become a more important role in oral function than that of the upper first molar.
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