临床上进行可摘局部义齿的牙合支托位、隙卡位预备时 ,需要磨去部分牙体组织 ,致牙本质暴露 ,患者常感到冷、热、酸、甜刺激痛。目前对此症状的治疗方法颇多。我们使用氟化氨银凝胶对基牙制备后牙本质过敏的患者进行了治疗 ,取得了较好的疗效。材料与方法1 病例选择　选择因基 Clinically removable partial dentures occlusal support bit, slot card bit preparation, you need to wear off some of the tooth tissue, causing dentinal exposure, patients often feel cold, hot, sour, sweet stimulating pain. There are currently many ways to treat this condition. We treated patients with post-dentin hypersensitivity using fluorinated ammonia-silver gel and achieved good results. Materials and Methods 1 Case Selection Select based