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中华口腔医学研究杂志(电子版) ›› 2009, Vol. 3 ›› Issue (05) : 468 -472. doi: 10.3877/cma.j.issn.1674-1366.2009-05-002

基础研究

GuttaFlow 常温流动牙胶充填系统对根管封闭能力的评价
王小燕1, 杨军英1,(), 张盛炎1, 陈珊1   
  1. 1.510080 广州,中山大学附属第一医院口腔科
  • 收稿日期:2009-06-18 出版日期:2009-10-01
  • 通信作者: 杨军英

An evaluation of sealing ability of GuttaFlow obturation system

Xiao-yan WANG1, Jun-ying YANG1,(), Sheng-yan ZHANG1, Shan CHEN1   

  1. 1.Department of Stomatology, First Affiliated Hospital,Sun Yat-sen University, Guangzhou 510080, China
  • Received:2009-06-18 Published:2009-10-01
  • Corresponding author: Jun-ying YANG
引用本文:

王小燕, 杨军英, 张盛炎, 陈珊. GuttaFlow 常温流动牙胶充填系统对根管封闭能力的评价[J/OL]. 中华口腔医学研究杂志(电子版), 2009, 3(05): 468-472.

Xiao-yan WANG, Jun-ying YANG, Sheng-yan ZHANG, Shan CHEN. An evaluation of sealing ability of GuttaFlow obturation system[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2009, 3(05): 468-472.

目的

评价GuttaFlow 常温流动牙胶充填系统对根管的封闭能力,并与常用根管封闭剂加牙胶尖冷侧压法进行比较,为临床应用提供依据。

方法

72 颗人体单根前牙于颈部截冠,机用镍钛器械以冠向下法进行根管预备。 标本随机分为3 个实验组,每组各20 个样本,分别为GuttaFlow 组(A 组)、AHPlus 组(B 组)和氢氧化钙组(C 组),另外设立阳性和阴性对照组,每组各6 个标本。 根充3 个月后,染料渗透法与透明牙技术结合对样本进行处理, 测量根管内的染色长度。

结果

A 组的染色长度为1.335 mm,B 组为2.996 mm,C 组为6.925 mm。 三组染色长度差异有统计学意义(P=0.001)。

结论

GuttaFlow 常温流动牙胶充填系统在观察期内具有较好的根管封闭能力,其远期疗效有待进一步观察。

Objective

To evaluate the sealing ability of GuttaFlow obturation system.

Methods

A total number of 72 extracted, human single-rooted anterior teeth were cleaned and shaped to size 40#, 0.4 taper using ProFile nickel titanium instruments after decoronated to obtain the same length of root segments. The teeth were randomly divided into three experimental groups A, B and C (n=20 respectively) and two control sub-groups (n=6 respectively). The root canals were obturated with (A) Gutta-Flow technique, (B) cold lateral condensation and AHPlus sealer, (C) calcium hydroxide based sealer. After obtutated, the teeth were made transparent and permitted dye penetration.A comparative evaluation of apical linear dye penetration was measured after 3 months.

Results

The 6 positive control specimens had total dye penetration of the root canal system, whereas the 6 negative control teeth had no color in the root canal. The mean dye penetration depths of group A, B and C were 1.339 mm, 2.996 mm and 6.922 mm respectively.There were significant differences between any two groups (P<0.05).

Conclusion

Based on the data of this study, GuttaFlow showed the least apical leakage though its long-term effect have yet to be proved.

表1 各组染色长度(mm,±s)
图1 GuttaFlow 组染料渗透透明牙照片(箭头所示为染色最大长度)
图2 AHPlus 组染料渗透透明牙照片(箭头所示为染色最大长度)
图3 碘仿氢氧化钙组染料渗透透明牙照片(箭头所示为染色最大长度)
表2 实验组组间两两比较(LSD 法)
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