干髓术是临床常用的方法。但目前对干髓术能否长期保存患牙,作为常规治疗方法,还未定论。现将我们五年内干髓术失败的57例分析如下: 病例选择为:意外露髓而无条件保存活髓、慢性牙髓炎急性发作、慢性牙髓炎。 使用的失活剂为上海齿科材料厂出的含砷糊剂;干髓剂多为该厂产品,部分是厦门齿科材料厂的产品。 Dry pulp surgery is a commonly used method. However, whether the long-term preservation of dental pulp surgery, as a conventional treatment, not yet conclusive. Now we five years 57 cases of failure of dry-cell surgery are as follows: Case selection: unconditional exposed pulp and unconditional preservation of vital pulp, acute episode of chronic pulpitis, chronic pulpitis. The deactivator used is arsenic-containing paste from Shanghai Dental Materials Factory; the dry pulp agent is mostly the product of the factory, and partly the product of Xiamen Dental Material Factory.