Development of objective criteria related to orofacial paresthesia

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K20568
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Surgical dentistry
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: Abe Keiko 東京医科歯科大学, 大学院医歯学総合研究科, 講師 (30401334)
• Research Collaborator: UMINO Masahiro 東京医科歯科大学, 名誉教授
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 体性感覚誘発電位 / 三叉神経

Outline of Final Research Achievements

We constructed a system with a device of recording somotosensory evoked potential (SEP) and of generating stimuli (electrical and air).
Sixty-four single electrical pulses were delivered to the mental region to average evoked potentials, which were recorded and fed to an averaging system. This stimuli were related to Aδ and C fiber. Evoked potentials were recorded at Cz (vertex) in reference to the earlobe. The upward deflection at a latency around 200 ms was named N2 and the downward deflection at a latency around 500 ms was named P2. Furthermore, we attempt to record SEP evoked by a weak air pressure. This stimuli were related to Aβ fiber.
After that, we will establish a system for diagnostic of orofacial paresthesia.

Free Research Field

歯科麻酔学