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1 临床资料 1.1 一般情况患者86例,其中男38例,女48例。年龄最大者45岁,最小者15岁,平均年龄30岁。前牙65枚,下前磨牙21枚,伴有龈瘘55例。病程最长5年,最短半年。 1.2 材料 HAP粉10g、碘仿1g、氢氧化钙0.5g、氧化锌0.8g,用时丁香油调制成糊剂。 1.3 治疗方法患牙拍X线片,常规开髓,预备根管,测根管长度,煤酚液消毒根管,用根管充填器分次将HAP糊剂送入根管内,尽量超填,使糊剂达根尖孔外的病变区,髓腔作永久充填。有龈瘘者,使碘酚液通过瘘管,牙胶暂封窝洞,经2～3次换药,根管内没有分泌物时,无论瘘管是否完全愈合,即可充填HAP糊剂。 1.4 结果治疗86例,经临床观察2年,81例临床症状完全消失,龈瘘愈合,X线显示根尖病变明显缩小或消失。失败5例, 治疗半年后根尖
1 Clinical data 1.1 General Situation 86 patients, including 38 males and 48 females. The youngest is 45 years old, the youngest is 15 years old and the average is 30 years old. 65 anterior teeth, 21 under the premolar, accompanied by gingival fistula 55 cases. Duration of up to 5 years, the shortest six months. 1.2 Materials HAP powder 10g, iodoform 1g, calcium hydroxide 0.5g, zinc oxide 0.8g, when used to prepare a paste of clove oil. 1.3 treatment of dental implants X-ray film, conventional open pulp, preparation of root canal, root canal length measurement, disinfection of coal root canal root canal, root canal packer HAP paste sub-grading into the root canal, as far as possible over-filling , So that paste the root tip of the hole outside the lesion area, the marrow cavity for permanent filling. There are gingival fistula, so that Iodophenol solution through the fistula, tectal temporary closure nest hole, after 2 to 3 dressing, no secretions within the root canal, regardless of fistula is completely healed, you can fill HAP paste. 1.4 Results Treatment of 86 cases, clinically observed for 2 years, 81 cases of clinical symptoms disappeared completely, gingival fistula healed, X-ray showed apical lesions significantly reduced or disappeared. Failure in 5 cases, the root tip after six months of treatment