Effect of heat treatments on Ni-Ti endodontic files

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Three brands of rotary nickel-titanium endodontic instruments with some comparable geometric features but with different crosssection (similar tip size and same taper of.04) were selected for this study: MTwo.04(35) (VDW GmbH, Germany), K3.04(30) (SybronEndo, Mexico) and K3XF.04(30) (SybronEndo, Mexico). K3XF is made from novel R-phase heat-treated metal alloy while all other files were made from traditional Ni-Ti alloy. The instruments were analysed under the following conditions: i) as received (AR), ii) heat treated at 350 degrees C, iii) heat treated at 400 degrees C. The transformation temperatures were determined by differential scanning calorimeter (DSC). Compared to conventionally K3 and MTwo files, R-phase heat treatment K3XF file showed higher transformation temperatures. These results also showed that heat treatments increase the transformation temperatures. (C) 2017 Portuguese Society of Materials (SPM). Published by Elsevier Espana, S.L.U. All rights reserved.
Original languageEnglish
Pages (from-to)E15-E18
JournalCiência e Tecnologia dos Materiais
Volume29
Issue number1
DOIs
Publication statusPublished - 2017

Fingerprint

heat treatment
heat
Mexico
temperature
calorimeters
titanium
nickel
Germany
metals
endodontics

Keywords

  • NiTi shape memory alloys
  • endodontic files
  • heat treatments
  • transformation temperatures

Cite this

@article{b11bf912f18e483d8d4c7bfcb3db3c95,
title = "Effect of heat treatments on Ni-Ti endodontic files",
abstract = "Three brands of rotary nickel-titanium endodontic instruments with some comparable geometric features but with different crosssection (similar tip size and same taper of.04) were selected for this study: MTwo.04(35) (VDW GmbH, Germany), K3.04(30) (SybronEndo, Mexico) and K3XF.04(30) (SybronEndo, Mexico). K3XF is made from novel R-phase heat-treated metal alloy while all other files were made from traditional Ni-Ti alloy. The instruments were analysed under the following conditions: i) as received (AR), ii) heat treated at 350 degrees C, iii) heat treated at 400 degrees C. The transformation temperatures were determined by differential scanning calorimeter (DSC). Compared to conventionally K3 and MTwo files, R-phase heat treatment K3XF file showed higher transformation temperatures. These results also showed that heat treatments increase the transformation temperatures. (C) 2017 Portuguese Society of Materials (SPM). Published by Elsevier Espana, S.L.U. All rights reserved.",
keywords = "NiTi shape memory alloys, endodontic files, heat treatments, transformation temperatures",
author = "Fernandes, {F. M. Braz} and Alves, {A. R.} and A. Machado and Oliveira, {J. P.}",
note = "Funding by FCT/MEC through PEst-C/CTM/LA0025-2013-14- Strategic Project - LA 25 - 2013-2014 and the Project NiTi-Fail (PTDC/EME-PME/122795/2011) is acknowledged. JPO acknowledges FCT/MCTES for funding PhD grant SFRH/BD/85047/2012.",
year = "2017",
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Effect of heat treatments on Ni-Ti endodontic files. / Fernandes, F. M. Braz; Alves, A. R.; Machado, A.; Oliveira, J. P.

In: Ciência e Tecnologia dos Materiais, Vol. 29, No. 1, 2017, p. E15-E18.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of heat treatments on Ni-Ti endodontic files

AU - Fernandes, F. M. Braz

AU - Alves, A. R.

AU - Machado, A.

AU - Oliveira, J. P.

N1 - Funding by FCT/MEC through PEst-C/CTM/LA0025-2013-14- Strategic Project - LA 25 - 2013-2014 and the Project NiTi-Fail (PTDC/EME-PME/122795/2011) is acknowledged. JPO acknowledges FCT/MCTES for funding PhD grant SFRH/BD/85047/2012.

PY - 2017

Y1 - 2017

N2 - Three brands of rotary nickel-titanium endodontic instruments with some comparable geometric features but with different crosssection (similar tip size and same taper of.04) were selected for this study: MTwo.04(35) (VDW GmbH, Germany), K3.04(30) (SybronEndo, Mexico) and K3XF.04(30) (SybronEndo, Mexico). K3XF is made from novel R-phase heat-treated metal alloy while all other files were made from traditional Ni-Ti alloy. The instruments were analysed under the following conditions: i) as received (AR), ii) heat treated at 350 degrees C, iii) heat treated at 400 degrees C. The transformation temperatures were determined by differential scanning calorimeter (DSC). Compared to conventionally K3 and MTwo files, R-phase heat treatment K3XF file showed higher transformation temperatures. These results also showed that heat treatments increase the transformation temperatures. (C) 2017 Portuguese Society of Materials (SPM). Published by Elsevier Espana, S.L.U. All rights reserved.

AB - Three brands of rotary nickel-titanium endodontic instruments with some comparable geometric features but with different crosssection (similar tip size and same taper of.04) were selected for this study: MTwo.04(35) (VDW GmbH, Germany), K3.04(30) (SybronEndo, Mexico) and K3XF.04(30) (SybronEndo, Mexico). K3XF is made from novel R-phase heat-treated metal alloy while all other files were made from traditional Ni-Ti alloy. The instruments were analysed under the following conditions: i) as received (AR), ii) heat treated at 350 degrees C, iii) heat treated at 400 degrees C. The transformation temperatures were determined by differential scanning calorimeter (DSC). Compared to conventionally K3 and MTwo files, R-phase heat treatment K3XF file showed higher transformation temperatures. These results also showed that heat treatments increase the transformation temperatures. (C) 2017 Portuguese Society of Materials (SPM). Published by Elsevier Espana, S.L.U. All rights reserved.

KW - NiTi shape memory alloys

KW - endodontic files

KW - heat treatments

KW - transformation temperatures

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DO - 10.1016/j.ctmat.2016.07.012

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