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使用0.04锥度和0.02锥度牙胶尖充填根管的根尖微渗漏的体外比较

In vitro comparison of apical leakage in root canals obturated with 0.04 and 0.02 tapered gutta-percha.

作者信息

Bidar Maryam, Sadeghi Ghazal, Gharechahi Maryam, Mortazavi Mohammad, Forghani Maryam

机构信息

Department of Endodontics, Dental Research Center/Mashad University of Medical Sciences, Mashad, Iran.

Endodontist.

出版信息

Iran Endod J. 2010 Summer;5(3):97-100. Epub 2010 Aug 15.

PMID:24778682
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4000685/
Abstract

INTRODUCTION

Gutta-percha is the most commonly used material for root canal obturation; it has been recently manufactured with different tapers. The aim of this in vitro study was to compare microleakage of canals obturated with standard gutta-percha (0.02 taper) or the new 0.04 taper gutta-percha master cone using the cold lateral condensation technique.

MATERIALS AND METHODS

Forty-four extracted single rooted teeth were selected. The crowns were removed and all the canals were prepared using RaCe rotary files. The teeth were then divided into experimental (n=2) and control (n=2) groups. In the first study group, the teeth were obturated with 0.02 taper gutta-percha master cone and lateral condensation. In the second study group, the canals were obturated by 0.04 tapered master cones and the same obturation method. The degree of leakage was measured using fluid filtration method. Data were analyzed statistically by student t-test.

RESULTS

There was no significant difference between the mean microleakage of two experimental groups (P=0.558).

CONCLUSION

Lateral condensation technique using 0.04 tapered master cones can provide an effective apical seal similar to 0.02 gutta-percha cones.

摘要

引言

牙胶是根管充填最常用的材料；最近已生产出不同锥度的牙胶。本体外研究的目的是比较使用标准牙胶（0.02锥度）或新型0.04锥度牙胶主尖，采用冷侧向加压充填技术进行根管充填后的微渗漏情况。

材料与方法

选取44颗拔除的单根牙。去除牙冠，使用RaCe旋转锉预备所有根管。然后将牙齿分为实验组（n = 22）和对照组（n = 22）。在第一个研究组中，用0.02锥度牙胶主尖和侧向加压充填法充填牙齿。在第二个研究组中，用0.04锥度主尖和相同的充填方法充填根管。采用液体过滤法测量渗漏程度。数据采用学生t检验进行统计学分析。

结果

两个实验组的平均微渗漏之间无显著差异（P = 0.558）。

结论

使用0.04锥度主尖的侧向加压充填技术能提供与0.02牙胶尖相似的有效根尖封闭。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0aa5/4000685/fba75050c9cd/iej-05-097-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0aa5/4000685/fba75050c9cd/iej-05-097-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0aa5/4000685/fba75050c9cd/iej-05-097-g001.jpg

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