口腔医学研究

口腔医学研究 ›› 2017, Vol. 33 ›› Issue (11): 1193-1196.DOI: 10.13701/j.cnki.kqyxyj.2017.11.015

• 牙髓病研究 • 上一篇    下一篇

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

白雨豪1, 侯晓玫2, 苏征3*   

  1. 1. 首都医科大学宣武医院口腔科 北京 100053;
    2. 北京大学口腔医院第二门诊部 北京 100101;
    3. 首都医科大学附属北京口腔医院牙体牙髓科 北京 100050
  • 收稿日期:2017-03-16 出版日期:2017-11-20 发布日期:2017-11-29
  • 通讯作者: 苏征,E-mail:445239653@qq.com
  • 作者简介:白雨豪(1988~ ),男,北京人,硕士,主要从事牙体牙髓病学的基础与临床研究。
  • 基金资助:
    首都医科大学宣武医院院级基金

Efficacy of Different Techniques on Removal of Calcium Hydroxide in Curved Root Canals: A Cone-Beam Computed Tomographic Study

BAI Yu-hao1, HOU Xiao-mei2, SU Zheng3*   

  1. 1. Department of Stomatology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China;
    2. The Second Dental Center of Peking University School of Stomatology, Beijing 100101, China;
    3. Department of Endodontics, Capital Medical University School of Stomatology, Beijing 100050, China
  • Received:2017-03-16 Online:2017-11-20 Published:2017-11-29

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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0 mm3(0 mm3,0.08 mm3),显著小于其他各组(P＜0.05)。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(P＜0.05)。超声荡洗组和XP-endo finisher组的氢氧化钙清除率显著高于声波荡洗组(P＜0.05)。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。

关键词: 氢氧化钙, 激光荡洗, 锥形束CT, 根管冲洗, 弯曲根管

Abstract: Objective: To compare the efficacy of five techniques on removal of calcium hydroxide in curved canals. Methods: Fifty simulated resin canals with 45°curvature were prepared and randomly divided into 5 groups (n=10). Calcium hydroxide was injected into the root canals, and then the samples were scanned by cone beam CT to evaluate the volume of calcium hydroxide. Five techniques including needle irrigation, PIPS laser-activated irrigation, ultrasonic irrigation, sonic irrigation, and XP-endo finisher file were used to remove the calcium hydroxide. After cone beam CT scanning, the volume of the residual calcium hydroxide and the reduction rate of calcium hydroxide were calculated. The data were analyzed using Kruskal-Wallis H test at the significance level of P＜0.05. Results: The residual calcium hydroxide volume was 0mm3 (0mm3, 0.08mm3) in the PIPS laser-activated irrigation group, which was lower than those of other groups (P＜0.05). The reduction rate of calcium hydroxide was 100.00% (98.89%, 100.00%) in the PIPS laser-activated irrigation group, which was higher than those of other groups (P＜0.05). Reduction rate in the ultrasonic irrigation group and XP-endo finisher group were higher than that of sonic irrigation group (P＜0.05). Conclusions: None of five techniques could completely remove the calcium hydroxide from the curved root canals. Compared with other four techniques, PIPS laser-activated irrigation was significantly more effective in the removal of calcium hydroxide in the curved canals.

Key words: Calcium hydroxide, Laser-activated irrigation, Cone beam-CT, Root canal irrigation, Curved canals

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