根管治疗就诊期间疼痛发生率为25～40%,其原因之一是留有牙髓组织,这可用彻底机械制各治疗;二是使用的冲洗剂及根管内药物刺激性,这可用相对无刺激的冲洗剂,如0.5%次氯酸钠或灭菌生理盐水,三是暂时性修复体有早接触点,这可降(牙合);四是器械进入正常根尖周组织,这是就诊期间疼痛的主要原因。活牙髓组织完全切断可引起炎症反应,损伤部位化学介质的释 The incidence of pain during the treatment of root canal therapy is 25 to 40%, one of the reasons is the left pulp tissue, which can be completely mechanical treatment; the second is the use of irrigation agents and root canal drug irritation, which can be used relative Unstimulated irrigant, such as 0.5% sodium hypochlorite or sterile saline, and third, temporary repair of early contact points, which can be reduced (occlusal); Fourth, the device into the normal apical organization, which is pain during treatment The main reason. Live dental pulp completely cut off can cause inflammation, damage the release of chemical mediators