下歯槽神経切断後の知覚の回復について-電気刺激による評価-

概要

論文の詳細を見る
The recovery of sensation by the lower lip and chin after inferior alveolar nerve section performed during oral and maxillofacial surgery was examined in 11 patients. Five patients were treated with by soft tissue reconstruction, while the other 6 were not.<BR>Sensory testing was performed using an electric stimulator (SEM 4201). Stimulating electric current was increased gradually and the level at which the patient felt an unusual sensation was regarded as the threshold. Results from the same areas were put together to derive threshold maps of the patient's lower lip and chin. Sensory levels of the upper lip were used as control. The areas of regions with higher thresholds than control were measured. Furthermore, areas with a threshold exceeding O. 1 mA and anesthesic areas by light touchtest were also measured.<BR>Areas with a threshold higher than control persisted in all 11 patients at final follow-up examinations (28-81 months) after surgery. At 28 months after surgery, areas with a threshold level exceeding 1.0 mA disappeared in 3 patients. No remarkable changes were noted 12 months after surgery onwards.
社団法人日本口腔外科学会の論文