2012 Fiscal Year Final Research Report
Evaluation of mandibular nerve injury using magnetoencephalography
| Project/Area Number |
22791946
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Surgical dentistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
MAEZAWA Hitoshi 北海道大学, 大学院・歯学研究科, 助教 (80567727)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 脳磁図 / 感覚異常 / 神経損傷 / 下顎神経 / 三叉神経 |
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| Research Abstract |
Clinically, quantitative measurement is required for sensory disturbance of tongue and lip due to mandibular nerve injury. We applied somatosensory evoked magnetic fields (SEFs) following tongue and lip stimulation in order to evaluate sensory dysfunction in patients with mandibular nerve injury. To evaluate tongue sensory abnormality, difference of tongue SEFs between affected- and unaffected- side stimulation can be an effective parameter. To indicate lip sensory disturbance, early component of lip SEFs can be an useful criterion. The present findings suggest that sensory disturbances in the tongue and lip associated with oral surgery can be detected objectively using magnetoencephalography.
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