Document Type

Journal Article

Date of this Version

2-2014

Publication Source

Restorative Dentistry & Endodontics

Volume

39

Issue

1

Start Page

7

Last Page

11

DOI

10.5395/rde.2014.39.1.7

Abstract

Objectives

The aim of this study was to compare the dimensional standard of several nickel-titanium (Ni-Ti) rotary files and verify the size conformity.

Materials and Methods

ProFile (Dentsply Maillefer), RaCe (FKG Dentaire), and TF file (SybronEndo) #25 with a 0.04 and 0.06 taper were investigated, with 10 in each group for a total of 60 files. Digital images of Ni-Ti files were captured under light microscope (SZX16, Olympus) at 32×. Taper and diameter at D1 to D16 of each files were calculated digitally with AnalySIS TS Materials (OLYMPUS Soft Imaging Solutions). Differences in taper, the diameter of each level (D1 to D16) at 1 mm interval from (ANSI/ADA) specification No. 101 were statistically analyzed using one-way ANOVA and Scheffe's post-hoc test at 95% confidence level.

Results

TF was the only group not conform to the nominal taper in both tapers (p < 0.05). All groups except 0.06 taper ProFile showed significant difference from the nominal diameter (p < 0.05).

Conclusions

Actual size of Ni-Ti file, especially TF, was different from the manufacturer's statements.

Copyright/Permission Statement

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords

diameter, Ni-Ti rotary files, size verification, taper, TF

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Date Posted: 02 April 2015

This document has been peer reviewed.