国际口腔医学杂志

国际口腔医学杂志 ›› 2021, Vol. 48 ›› Issue (6): 629-634.doi: 10.7518/gjkq.2021091

• 论著 • 上一篇    下一篇

3种根管充填方法对不同类型根管根尖封闭性的影响研究

孙莉青1,2(),郭宜青1,2,杨爱华3,肖文林1,2,孙慧斌1,2()   

  1. 1.青岛大学附属医院口腔科 青岛 266003
    2.青岛大学口腔医学院 青岛 266003
    3.青岛大学附属医院检验科 青岛 266000
  • 收稿日期:2021-02-22 修回日期:2021-06-17 出版日期:2021-11-01 发布日期:2021-10-28
  • 通讯作者: 孙慧斌
  • 作者简介:孙莉青,硕士,Email： 18363996384@163.com
  • 基金资助:
    全国医学专业学位研究生教育指导委员会研究课题(B1-YX20180302-03);山东省研究生导师指导能力提升计划(SDYY18071)

Study on apical sealing ability of three root canal filling techniques for different types of root canals

Sun Liqing1,2(),Guo Yiqing1,2,Yang Aihua3,Xiao Wenlin1,2,Sun Huibin1,2()   

  1. 1. Dept. of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
    2. School of Stomatology of Qingdao University, Qingdao 266003, China
    3. Dept. of Laboratory, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
  • Received:2021-02-22 Revised:2021-06-17 Online:2021-11-01 Published:2021-10-28
  • Contact: Huibin Sun
  • Supported by:
    National Medical Professional Degree Postgraduate Education Steering Committee Research Project(B1-YX20180302-03);Shandong Province Postgraduate Tutor Guidance Ability Enhancement Program(SDYY18071)

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摘要：

目的 检测3种根管充填方法对不同类型根管根尖封闭性的影响。方法 选取新鲜拔除的前磨牙和磨牙,用金刚砂车针截取10 mm牙根备用,经锥形束CT（CBCT）拍摄后,选取符合标准的规则的直根管、椭圆根管及中重度弯曲根管牙根各3组,每组10个样本,作为实验组。选取单根管牙根作为阳性及阴性对照组,每组5个样本。以iRoot SP作为根管封闭剂,分别采用热牙胶垂直加压充填法、冷牙胶侧方加压充填法和单尖法完成根管充填,通过葡萄糖定量法检测根尖微渗漏情况。结果 对于3组规则的直根管,第1、7、14、21、28天,对于3组中重度弯曲根管,第1、7、14天,对于3组椭圆根管,第1天,根尖微渗漏值差异均无统计学意义（P>0.05）;对于3组中重度弯曲根管,第21、28天,对于3组椭圆根管,第7、14、21、28天,冷侧压组的微渗漏值明显高于热牙胶和单尖法组（P<0.05）,且后两组的微渗漏值差异无统计学意义（P>0.05）。结论 以iRoot SP作为根管封闭剂进行规则的直根管充填时,使用热牙胶垂直加压充填法、冷牙胶侧方加压充填法和单尖法充填的根尖封闭性能相似;进行椭圆根管及中重度弯曲根管的根管充填时,使用热牙胶垂直加压充填法和单尖法充填的根尖封闭性能均优于冷牙胶侧方加压充填法。

关键词: 不同类型根管, iRoot SP, 根尖封闭性, 葡萄糖定量法

Abstract:

Objective To detect the effects of three root canal filling methods on the apical sealing ability of different root canals using glucose quantitative method. Methods Fresh extracted premolars and molars were selected, and 10 mm roots were cut with a low speed diamond disc as samples. After cone beam CT (CBCT) photography, 3 groups of re-gular straight root canals, elliptical root canals and moderate and severe curved root canals were selected as experimental groups, with 10 samples in each group. iRoot SP was used as the root canal sealer,and the warm vertical compression technique,cold gutta-percha lateral compaction technique and single-cone obturation technique were used to complete the root canal. The apical microleakage was detected by the glucose quantitative method. Results For the regular straight root canals of the three groups, on the 1st, 7th, 14th, 21st and 28th days, for the moderate and severe curved root canals of the three groups, on the 1st, 7th and 14th days, and for the oval-shaped root canals of the three groups, on the first day there was no significant difference in apical microleakage (P>0.05). For the moderate and severe curved root canals of the three groups, on the 21st and 28th day, for the oval-shaped root canals of the three groups, on the 7th, 14th, 21st and 28th day, the microleakage value of the cold gutta-percha lateral compaction technique was significantly higher than that of the warm vertical compression technique group and the single-cone obturation technique group (P<0.05). There was no significant difference in microleakage between the latter two groups (P>0.05). Conclusion When iRoot SP is used as a root canal sealer for root canal filling of regular straight root canals,the apical sealing ability of the warm vertical compression technique, cold gutta-percha lateral compaction technique and single-cone obturation technique group are similar. For oval-shaped root canals, and moderate to severe curved root canals, the apical sea-ling ability of the warm vertical compression technique and single-cone obturation technique group is better than cold gutta-percha lateral compaction technique group.

Key words: different types of root canals, iRoot SP, apical sealing ability, glucose quantitative method

中图分类号: 

  • R781.3

表1

分组情况"

组别 根管形态 例数 充填方法
A1 规则的直根管 10 热牙胶
A2 规则的直根管 10 冷侧压
A3 规则的直根管 10 单尖法
B1 椭圆根管 10 热牙胶
B2 椭圆根管 10 冷侧压
B3 椭圆根管 10 单尖法
C1 弯根管 10 热牙胶
C2 弯根管 10 冷侧压
C3 弯根管 10 单尖法
D（阴性） 单根管 5 无
E（阳性） 单根管 5 不使用根管封闭剂

表2

不同组间葡萄糖微渗漏值"

组别 第1天 第7天 第14天 第21天 第28天
A1 0.04±0.04 0.24±0.06 1.29±0.15 3.12±0.15 5.72±0.11
A2 0.06±0.05 0.29±0.07 1.37±0.06 3.25±0.14 5.76±0.11
A3 0.03±0.04 0.25±0.08 1.35±0.06 3.27±0.09 5.69±0.11
B1 0.08±0.05 0.42±0.06 1.58±0.11 3.59±0.16 7.89±0.21
B2 0.07±0.06 1.25±0.23Δ 2.47±0.60Δ 5.54±0.61Δ 12.36±1.49Δ
B3 0.07±0.05 0.44±0.07 1.53±0.14 3.68±0.13 8.27±0.13
C1 0.05±0.05 0.44±0.07 1.47±0.08 3.68±0.23 7.60±0.82
C2 0.06±0.06 0.49±0.14 1.55±0.07 4.06±0.25* 8.99±0.18*
C3 0.04±0.04 0.47±0.08 1.49±0.06 3.67±0.24 6.50±0.34
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