刻度牙胶尖根管充填效果的X线片观察

目的：评价刻度牙胶尖在根管治疗术中根尖处的充填质量。方法：将符合根管治疗术适应证的患牙随机分为2组，每组50例。经常规开髓拔髓、根管预备后，实验组以刻度牙胶尖为主尖充填根管。对照组以常规无刻度牙胶尖充填根管。根管充填完毕摄X线牙片，钢尺测量根管充填材料距根尖孔距离。结果：实验组有34例根管充填达理想位(距根尖孔0．5～1．0mm)，占总数68％。而对照组仅18例根管充填能达理想位，占36％。结论：使用刻度牙胶尖充填根管能提高根管充填质量、简化治疗操作步骤，有利于提高临床工作效率。

X-ray observation of root canal filling with length marked gutta-percha points

AIM:To evaluate the quality of the apical root filling with length marked gutta-percha points.METHODS:A total of 100 teeth was divided equally into 2 groups and treated with root canal therapy,after root canal prepareation,the experimental group was filled with length marked gurtta-percha poonts as main points,the control group was filled with conventional gutta-percha points.The quality of the apical oburation was measured by X-ray photography.RESULTS:In experimental group,there are 34 teeth(68%) with fine apical root filling at working length,while only 18 teeth(36%) in control group.CONCLUSION:Length marked gutta-percha points can improve the quality of the root canal filling,simplify the steps of the clinical practice,and improve the efficiency of the treatment.