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严重龋坏致髓底穿通牙较为常见 ,且多伴有慢性根尖周炎 ,部分形成瘘管。治疗一般拔除患牙。能否采取有效治疗保存此类患牙是口腔科尚未解决的难题。 1999～ 2 0 0 1年 ,我们用甲硝唑糊剂暂时封闭等治疗方法 ,保存了 87 5 %的深龋穿通牙。1 对象和方法1 1 对象 5 6例 (5 6颗
Severe carious pulp-piercing through the pulp is more common, and often accompanied by chronic apical periodontitis, part of the formation of fistula. Treatment of general removal of teeth. The availability of effective treatments for the preservation of such teeth is an unsolved problem in dentistry. From 1999 to 2001, we treated the patients with metronidazole paste temporarily, and saved 87.5% of deep caries penetration. 1 objects and methods 1 1 object 5 6 cases (5 6