Publication at Third Faculty of Medicine |
2010
Abstract
Fifteen awake rats implanted with tooth pulp, cerebral cortex and digastric muscle electrodes were divided into three groups, receivning 60 Hz, 40 Hz and no cortical stimulation, respecitively TPEPs were recorded before one, three and five hours after continuous stimulation. We observed an inverse realtionship between TPEPs amplitude and latency with increasing tooth pulp stimulation.
The decrease in amplitude of TPEPs after cortical stimulation may reflect its anti-nociceptive effect.