牙本质过敏症是指牙本质暴露部分受到酸性食物,如杨梅、杏子、食醋及冷、热等刺激引起的牙痛。我科自一九八六年以来,采用2％氟化钠水溶液透入脱敏治疗牙本质过敏症,获得了满意的效果,特介绍如下。方法:设备是西安市医院制的氟离子透人防龋仪。在制成的塑料牙合托盘上下槽沟内设有铝 Dentinal hypersensitivity refers to the part of the dentin exposed by acidic foods such as bayberry, apricot, vinegar and cold, heat and other stimuli caused by toothache. Our department since 1986, 2% sodium fluoride aqueous solution desensitized treatment of dentin hypersensitivity, obtained satisfactory results, special introduction is as follows. Methods: The equipment is a fluoride ion permeable anti-caries instrument made by Xi'an Hospital. Aluminum made of plastic dental tray in the upper and lower grooves