不同方法对弯曲根管内氢氧化钙清除效果的锥形束CT研究

发布时间：2018-05-13 02:21

本文选题：氢氧化钙 + 激光荡洗　；参考：《口腔医学研究》2017年11期

【摘要】：目的:比较5种技术对弯曲根管内氢氧化钙的清除效果。方法:50个45°弯曲树脂根管经预备后随机分为5组(n=10)。将氢氧化钙糊剂注射入根管内,锥形束CT扫描并计算根管内氢氧化钙体积。分别使用针头冲洗法、PIPS激光荡洗法、超声荡洗法、声波荡洗法和XP-endo finisher法清除根管内氢氧化钙。清理后锥形束CT扫描,计算剩余氢氧化钙体积和氢氧化钙清除百分比。使用Kruskal-Wallis H检验进行统计学分析,显著性水平0.05。结果:PIPS激光荡洗组剩余氢氧化钙体积为0mm3(0mm3,0.08mm3),显著小于其他各组(P0.05)。PIPS激光荡洗组氢氧化钙清除率为100.00%(98.89%,100.00%),显著高于其他各组(P0.05)。超声荡洗组和XPendo finisher组的氢氧化钙清除率显著高于声波荡洗组(P0.05)。结论:5种清理方法均不能完全清除弯曲根管内的氢氧化钙。相较于其他4种方法,PIPS激光荡洗法对弯曲根管内的氢氧化钙具有最佳的清除效果。
[Abstract]:Objective: to compare the scavenging effect of 5 techniques on calcium hydroxide in curved root canal. Methods: 50 45 掳curved resin root canals were randomly divided into 5 groups. Calcium hydroxide paste was injected into the root canal, and the volume of calcium hydroxide in the root canal was calculated by conical beam CT scanning. Needle washing method was used to remove calcium hydroxide in root canals. The volume of residual calcium hydroxide and the percentage of calcium hydroxide clearance were calculated by conical beam CT scanning after cleaning. Using Kruskal-Wallis H test for statistical analysis, the significant level was 0.05. Results the volume of residual calcium hydroxide was 0 mm ~ 3 mm ~ 0 mm ~ 3 ~ (-1) ~ 0.08 mm ~ (-3), which was significantly lower than that of other groups (P _ (0.05) ~ (5) 路PIPS laser washing group. The clearance rate of calcium hydroxide was 100.000.89% ~ 10 ~ (0.005)%, which was significantly higher than that of other groups (P _ (0.05). The removal rate of calcium hydroxide in ultrasonic washing group and XPendo finisher group was significantly higher than that in sonic wave washing group (P 0.05). Conclusion none of the five methods can completely remove calcium hydroxide from curved root canal. Compared with the other four methods, PIPS laser washing method has the best removal effect on calcium hydroxide in curved root canal.
【作者单位】：首都医科大学宣武医院口腔科;北京大学口腔医院第二门诊部;首都医科大学附属北京口腔医院牙体牙髓科;
【基金】：首都医科大学宣武医院院级基金
【分类号】：R781.05

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