K3和ProTaper旋转锉在弯曲树脂块中的根管预备模式比较
Comparison of Canal Preparation Pattern of K3 and ProTaper Rotary Files in Curved Resin Blocks.
作者信息
Mohammadzade Akhlaghi Nahid, Khalilak Zohreh, Baradaran Mohajeri Ladan, Sheikholeslami Mahshid, Saedi Saeed
机构信息
Department of Endodontics, Dental School of Islamic Azad University and Member of Iranian Center for Endodontic Research, Tehran, Iran.
出版信息
Iran Endod J. 2008 Spring;3(2):11-6. Epub 2008 Apr 2.
INTRODUCTION
The purpose of this study was to evaluate and compare canal preparation pattern of K3 and ProTaper rotary files in curved resin blocks.
MATERIALS AND METHODS
Twenty-four resin blocks were used in this experimental study and randomly divided into two groups. Their initial images were scanned. After preparation, their images were scanned again in the same position. Pre and post preparation images were superimposed by Photoshop software and the removed resin was measured in 5 different points, and then analyzed statistically by ANOVA and t-test.
RESULTS
At O point (orifice), significantly (p<0.05) more outer canal wall was removed in the ProTaper group than in the K3 group. There was no significant difference at any other points of outer wall. Removed material of inner canal wall was not significantly different between the two groups.
CONCLUSION
Under the condition of this study, both systems performed acceptable preparation pattern except at the beginning of the curve.
引言
本研究的目的是评估和比较K3和ProTaper旋转锉在弯曲树脂块中的根管预备模式。
材料与方法
本实验研究使用了24个树脂块，并随机分为两组。对其初始图像进行扫描。预备后，在相同位置再次扫描其图像。使用Photoshop软件将预备前后的图像叠加，并在5个不同点测量去除的树脂，然后通过方差分析和t检验进行统计学分析。
结果
在O点（根管口），ProTaper组去除的根管外壁明显多于K3组（p<0.05）。在外壁的任何其他点均无显著差异。两组之间根管内壁去除的材料无显著差异。
结论
在本研究条件下，除了在弯曲起始处外，两种系统均表现出可接受的预备模式。
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