临床已经证明复方口腔药膜对口腔溃疡有明显止痛作用,本实验的目的是对其止痛原理进行初步探讨,为该药膜的进一步开发应用提供根据。材料和方法本实验所用药膜和空白膜均为山东省医药工业研究所附属药厂提供,电刺激信号由 Clinically, it has been proved that the compound oral film has obvious analgesic effect on oral ulcer. The purpose of this experiment is to probe into its analgesic principle and provide the basis for the further development and application of the film. Materials and Methods The experimental membrane used in this study and the blank membrane are provided by the Pharmaceutical Research Institute of Shandong Province subsidiary pharmaceutical, electrical stimulation signal from