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以往认为对于根尖周病变范围较大者,在治疗根管的同时应做根尖刮治术或根尖切除术以消除病变。由于解剖条件的限制和患者全身健康状况的影响,目前很多作者对尖周外科手术都采取慎重态度,主张以根管治疗代替有较大病灶的慢性根尖周炎的根尖切除术。我们于1976年采用酚醛碘氧化锌糊剂加牙胶尖严密充填根管治疗慢性尖周炎,避免根尖搔刮及根尖切除,经1—10年追踪观察,收到较好效果,初步总结如下:
In the past that the periapical lesions larger range, in the treatment of root canal should be done at the same time apical curettage or apical resection to eliminate the disease. Due to the limitation of anatomical conditions and the influence of patients' general health status, many authors now take a cautious approach to periapical surgery and advocate root canal therapy instead of apical resection of chronic apical periodontitis with larger lesions. We use phenolic iodine zinc oxide paste plus gutta percha sharp tip filling in 1976, the treatment of chronic periapical disease, to avoid apical scraping and apical resection, tracking after 1 to 10 years, received good results, preliminary Summarized as follows: