作者搜集1977～1991年间因根管治疗失败而进行根尖刮治手术的根尖病变标本150例,通过HE染色确定病理分类。结果发现59.3％的根尖周病变为尖周肉芽肿,22％为囊肿,12％为瘢痕组织,其余的6.7％病例包括3例侧方牙周囊肿,2例根尖脓肿、2例异物反应,另1例病理表现慢性窦道、粘液瘤钙化组织。在 The author collected from 1977 to 1991 root canal curettage of apical lesions in 150 cases of apical lesions specimens by HE staining to determine the pathological classification. The results showed that 59.3% of the periapical lesions were perinuclear granulomas, 22% were cysts and 12% were scar tissue. The remaining 6.7% included 3 lateral periodontal cysts, 2 apical abscesses and 2 foreign body reactions Another case of chronic sinusitis, calcified tissue myxoma. in