我科自1978年以来,采用2%碘甘油从根管内注入根尖周组织,治疗砷性报尖周炎16例,效果满意,特介绍如下. 一、治疗方法: 因砷类失活剂封入失活时间过长,已引起砷性根尖周炎的牙齿,应立即除去失活剂,摘除冠髓及根髓并扩通根管,冲洗、干燥根管。然后在局麻 My department since 1978, the use of 2% iodine glycerol from the periapical tissue into the periapical tissue treatment of arsenic reported periapical 16 cases, with satisfactory results, introduced as follows. First, the treatment: due to arsenic inactivators Encapsulated deactivation time is too long, has caused arsenic apical periodontitis, deactivator should be immediately removed, removal of the coronal pulp and root pulp and expand the root canal, rinse, dry the root canal. Then at the local anesthesia