Numeric comparison of the static mechanical behavior between ProFile GT and ProFile GT series X rotary nickel-titanium files
Authors: Montalvão, D. and Alçada, F.S.
Journal: Journal of Endodontics
Volume: 37
Issue: 8
Pages: 1158-1161
ISSN: 0099-2399
DOI: 10.1016/j.joen.2011.05.018
Abstract:Introduction: This article aims to evaluate how different superelastic nickel-titanium (NiTi) alloys determine the static mechanical performance of endodontic files during bending and torsion. Methods: Two NiTi rotary instruments with similar geometries and equal cross sections, ProFile GT (GT) and a GT Series X (GTX), were selected. The latter file is made from M-Wire, a NiTi alloy that, according to its manufacturer, has been thermomechanically processed to have larger flexibility at body temperature. The mechanical response was studied for a series of static bending and torsional loads by using finite element (FE) models. The materials were characterized according to previously published stress-strain curves. Results: For the same load and boundary conditions, the GTX material significantly increased the instrument's performance. For instance, the deflection for a 1N force at the tip of the file was found to be 28.5% larger for the GTX file, whereas the maximum stress decreased 13.2%. Conclusions: Although not fully reflective of the instrument's behavior in a dynamic rotation intracanal system, the static results showed that the GTX file is more flexible and capable of stress relief at the most critical sections than the GT file, suggesting that it has a lower risk of fracture inside the root canals during its clinical use. Copyright © 2011 American Association of Endodontists.
https://eprints.bournemouth.ac.uk/24576/
Source: Scopus
Numeric comparison of the static mechanical behavior between ProFile GT and ProFile GT series X rotary nickel-titanium files.
Authors: Montalvão, D. and Alçada, F.S.
Journal: J Endod
Volume: 37
Issue: 8
Pages: 1158-1161
eISSN: 1878-3554
DOI: 10.1016/j.joen.2011.05.018
Abstract:INTRODUCTION: This article aims to evaluate how different superelastic nickel-titanium (NiTi) alloys determine the static mechanical performance of endodontic files during bending and torsion. METHODS: Two NiTi rotary instruments with similar geometries and equal cross sections, ProFile GT (GT) and a GT Series X (GTX), were selected. The latter file is made from M-Wire, a NiTi alloy that, according to its manufacturer, has been thermomechanically processed to have larger flexibility at body temperature. The mechanical response was studied for a series of static bending and torsional loads by using finite element (FE) models. The materials were characterized according to previously published stress-strain curves. RESULTS: For the same load and boundary conditions, the GTX material significantly increased the instrument's performance. For instance, the deflection for a 1N force at the tip of the file was found to be 28.5% larger for the GTX file, whereas the maximum stress decreased 13.2%. CONCLUSIONS: Although not fully reflective of the instrument's behavior in a dynamic rotation intracanal system, the static results showed that the GTX file is more flexible and capable of stress relief at the most critical sections than the GT file, suggesting that it has a lower risk of fracture inside the root canals during its clinical use.
https://eprints.bournemouth.ac.uk/24576/
Source: PubMed
Numeric Comparison of the Static Mechanical Behavior between ProFile GT and ProFile GT Series X Rotary Nickel-Titanium Files
Authors: Montalvao, D. and Alcada, F.S.
Journal: JOURNAL OF ENDODONTICS
Volume: 37
Issue: 8
Pages: 1158-1161
eISSN: 1878-3554
ISSN: 0099-2399
DOI: 10.1016/j.joen.2011.05.018
https://eprints.bournemouth.ac.uk/24576/
Source: Web of Science (Lite)
Numeric comparison of the static mechanical behavior between ProFile GT and ProFile GT series X rotary nickel-titanium files.
Authors: Montalvão, D. and Alçada, F.S.
Journal: Journal of endodontics
Volume: 37
Issue: 8
Pages: 1158-1161
eISSN: 1878-3554
ISSN: 0099-2399
DOI: 10.1016/j.joen.2011.05.018
Abstract:Introduction
This article aims to evaluate how different superelastic nickel-titanium (NiTi) alloys determine the static mechanical performance of endodontic files during bending and torsion.Methods
Two NiTi rotary instruments with similar geometries and equal cross sections, ProFile GT (GT) and a GT Series X (GTX), were selected. The latter file is made from M-Wire, a NiTi alloy that, according to its manufacturer, has been thermomechanically processed to have larger flexibility at body temperature. The mechanical response was studied for a series of static bending and torsional loads by using finite element (FE) models. The materials were characterized according to previously published stress-strain curves.Results
For the same load and boundary conditions, the GTX material significantly increased the instrument's performance. For instance, the deflection for a 1N force at the tip of the file was found to be 28.5% larger for the GTX file, whereas the maximum stress decreased 13.2%.Conclusions
Although not fully reflective of the instrument's behavior in a dynamic rotation intracanal system, the static results showed that the GTX file is more flexible and capable of stress relief at the most critical sections than the GT file, suggesting that it has a lower risk of fracture inside the root canals during its clinical use.https://eprints.bournemouth.ac.uk/24576/
Source: Europe PubMed Central
Numeric comparison of the static mechanical behavior between ProFile GT and ProFile GT series X rotary nickel-titanium files.
Authors: Montalvão, D. and Alçada, F.S.
Journal: Journal of Endodontics
Volume: 37
Issue: 8
Pages: 1158-1161
ISSN: 0099-2399
Abstract:INTRODUCTION: This article aims to evaluate how different superelastic nickel-titanium (NiTi) alloys determine the static mechanical performance of endodontic files during bending and torsion. METHODS: Two NiTi rotary instruments with similar geometries and equal cross sections, ProFile GT (GT) and a GT Series X (GTX), were selected. The latter file is made from M-Wire, a NiTi alloy that, according to its manufacturer, has been thermomechanically processed to have larger flexibility at body temperature. The mechanical response was studied for a series of static bending and torsional loads by using finite element (FE) models. The materials were characterized according to previously published stress-strain curves. RESULTS: For the same load and boundary conditions, the GTX material significantly increased the instrument's performance. For instance, the deflection for a 1N force at the tip of the file was found to be 28.5% larger for the GTX file, whereas the maximum stress decreased 13.2%. CONCLUSIONS: Although not fully reflective of the instrument's behavior in a dynamic rotation intracanal system, the static results showed that the GTX file is more flexible and capable of stress relief at the most critical sections than the GT file, suggesting that it has a lower risk of fracture inside the root canals during its clinical use.
https://eprints.bournemouth.ac.uk/24576/
Source: BURO EPrints