许多作者用不同的技术诱导死髓牙的喇叭口状根尖闭合,颇多成功。但是对根尖诱导术(Apexification)无反应的病例采用变更治疗方法的文献报告则很少。本文报告了一名直到通过开放的根尖刮治尖周损害才对氢氧化钙治疗发生反应的病例。 1972年2月,一名18岁女病员去医院就诊,她主诉右上侧切牙在9岁时因跌伤而折裂,五年后,此牙远中腭侧曾反复肿胀过几次。检查发现此牙轻度变色,扭转,近中切角缺失,牙髓无活力反应,X片显示:根尖 Many authors used a variety of techniques to induce the flare-like root apical closure of the dead tooth, with many successes. However, there are few reports on the use of modified therapies in patients who do not respond to Apexification. This article reports one case of calcium hydroxide treatment that did not respond to perianal lesions through an open apical. In February 1972, an 18-year-old female patient went to the hospital for treatment. She complained that the right upper incisor was fractured by a fall injury when she was 9 years old. After five years, her maxillary palate had repeatedly swollen several times. Inspection found that this tooth mild discoloration, reverse, missing near mid-cut angle, pulp no viable response, X-ray shows: apical