Mechanicals properties from three thermo-activated titanium-nickel orthodontic archwire brands. In vitro Study
DOI:
https://doi.org/10.15381/os.v13i1.2833Keywords:
Orthodontic archwires, Material assay, Traction resistance, Comparative study.Abstract
The optimal selection of orthodontic archwires allows the professional to make the treatment in an efficient way; therefore, the knowledge of basic mechanical properties is required, which are not revealed by their manufacturers. The purpose of this study was to compare the mechanical properties (constant tension in the activation area, constant elongation in the activation area, maximum resistance and break point) of three thermo-activated titanium-nickel orthodontic archwires. 10 0.4 mm-diameter thermo-activated titaniumnickel orthodontic archwires from the following brands were used: NiTi GACR (Control Group), Nitinol Termoactivado 3M UnitekR, Sentalloy GACR, Nitinol Termoactivado TECNIDENTR. 80 mm test bodies were prepared and tested for traction using a Zwick / Roell machine model Z050 8402 with a 50 kN capacity, at a speed of 1 mm/min and at 37 °C. The results show that the higher value was obtained by Nitinol 3M Unitek (374,43 + 16,72 MPa) for the constant tension in the activation area, while the Nitinol Tecnident showed the higher value (14,51 + 0,91%) in the constant elongation in the activation area. The Nitinol Sentalloy GAC recorded the higher value in the maximum resistance (1398,59 + 45,36 MPa) and break point (174,29 + 6,47 N). It was concluded that the thermo-activated titanium-nickel orthodontic archwires present differences in their mechanical properties.Downloads
Downloads
Published
Issue
Section
License
Copyright (c) 2010 Viviana Ramos Torres, Luciano Soldevilla Galarza, Manuel Mattos Vela
![Creative Commons License](http://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
AUTHORS RETAIN THEIR RIGHTS:
a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.
b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Odontología Sanmarquina.
c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).