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. 2008 Spring;3(2):11-6.
Epub 2008 Apr 2.

Comparison of Canal Preparation Pattern of K3 and ProTaper Rotary Files in Curved Resin Blocks

Nahid Mohammadzade Akhlaghi  1 , Zohreh Khalilak, Ladan Baradaran Mohajeri, Mahshid Sheikholeslami, Saeed Saedi
Affiliations

Comparison of Canal Preparation Pattern of K3 and ProTaper Rotary Files in Curved Resin Blocks

Nahid Mohammadzade Akhlaghi et al. Iran Endod J. 2008 Spring.

Abstract

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.

Keywords: K3; ProTaper; Root Canal Preparation; Root Canal Transportation; Rotary Files.

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Figures

Figure 1
Figure 1
All measurements were made perpendicular to the axis of the pre-instrumentation canal using the image analysis software.
Figure 2
Figure 2
Comparison of material removal (mm) from outer and inner canal walls at different measuring points for each file
Figure 3
Figure 3
Comparison of material removal (mm) for two different files at different measuring points for inner and outer canal walls
See this image and copyright information in PMC

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