2010 Fiscal Year Final Research Report

The evaluation of the intractable chronic pain in psychosocial factor and specificity symptom

Research Project

Project/Area Number	20791524
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Surgical dentistry
Research Institution	Hiroshima University
Principal Investigator	DOI Mitsuru Hiroshima University, 大学院・医歯薬学総合研究科, 助教 (30412620)
Project Period (FY)	2008 – 2010
Keywords	歯学 / 痺痛治療 / 神経障害性痺痛
Research Abstract	Trigeminal neuropathy following dental treatment is one of the most difficult conditions to treat. Prolonged abnormal sensation tends to be observed in cases whose nerves were moderately or severely damaged. The purpose of this study was to guess that the severity of nerve injury could be measured with electric and tactile detection thresholds. Assessing not only intensity of hypoesthesia but also quality of dysesthesia is important to evaluate precise patient's sensory damage and complaint. And the electrical detective threshold higher than 2.15 mA showed a tendency of prolongation of abnormal sensation. Using quantitative sensory testing's, we can roughly predict prolonged abnormal sensation in fresh cases.