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BMC Oral Health
Published in: BMC Oral Health 1/2015

Open Access 01-12-2015 | Technical advance

Comparison of apical and coronal extrusions using reciprocating and rotary instrumentation systems

Authors: Yan Lu, Min Chen, Feng Qiao, Ligeng Wu

Published in: BMC Oral Health | Issue 1/2015

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Abstract

Background

The aim of this study was to compare the apical and coronal extrusions by using two reciprocating and two rotary instrumentation systems.

Methods

Eighty extracted human single-rooted anterior teeth were randomly assigned to four groups. Four different root canal instrumentation systems were used according to the manufacturers instructions, including two reciprocating single-file systems, Reciproc and WaveOne, and two full-sequence rotary BLX and ProTaper instruments. Debris collected from the coronal by the instruments and apical extrusions were quantified respectively. After drying the collections, the mean weight of debris collected from apical and coronal extrusions was assessed using an electronic balance and analyzed using the Kruskal–Wallis H and Mann–Whitney U tests.

Results

Statistically significant differences in the apical extrusion were observed among the four groups. Reciproc and WaveOne instruments produced significantly less debris than BLX and ProTaper instruments (P < 0.05).

Conclusions

All of the systems produced apical extrusion of debris. However, reciprocating single-file systems produced less apical extrusion than full-sequence rotary systems. No relationship was observed between apical and coronal extrusions.
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Metadata
Title
Comparison of apical and coronal extrusions using reciprocating and rotary instrumentation systems
Authors
Yan Lu
Min Chen
Feng Qiao
Ligeng Wu
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Oral Health / Issue 1/2015
Electronic ISSN: 1472-6831
DOI
https://doi.org/10.1186/s12903-015-0081-z

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