Evaluation of palatal arches made from low-nickel stainless steel wire

Authors

  • Rogério Lacerda dos Santos Federal University of Rio de Janeiro
  • Matheus Melo Pithon Federal University of Rio de Janeiro
  • Margareth Maria Gomes de Souza Federal University of Rio de Janeiro
  • Ana Maria Bolognese Federal University of Rio de Janeiro
  • Mônica Tirre de Souza Araújo Federal University of Rio de Janeiro

DOI:

https://doi.org/10.20396/bjos.v8i3.8642141

Keywords:

Orthodontics, Malocclusion, Nickel, Hypersensitivity

Abstract

Aim: To test the hypothesis that there is no difference between stainless steel wires and low-nickel stainless steel ones regarding their mechanical behavior. Force, resilience and elasticity modulus produced by Coffin, “W” arch, and Quad-helix appliances made of 0.032-inch and 0.036-inch wires were evaluated. Methods: Fifteen appliances of each type (Coffin, “W” arch, and Quad-helix) were made according to metal alloy and wire thickness. All arches (12 groups of 15 appliances each) were submitted to mechanical compression test by using an EMIC DL-10000 machine simulating activations of 5, 8, 10, and 12 mm. Analysis of variance with multiple comparisons and Tukey’s test were used (P < 0.05) for analyzing statistically force and resilience data. Results: The results showed that mechanical properties depended on shape of the appliance, diameter of the wire, amount of activation, and metal alloy. Conclusions: Appliances made from lownickel stainless steel alloy had higher release of force, resilience and elasticity modulus compared to those made of stainless steel alloy.

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Author Biographies

Rogério Lacerda dos Santos, Federal University of Rio de Janeiro

DDS, MS, PhD student in Orthodontics, Federal University of Rio de Janeiro

Matheus Melo Pithon, Federal University of Rio de Janeiro

DDS, MS, PhD student in Orthodontics, Federal University of Rio de Janeiro

Margareth Maria Gomes de Souza, Federal University of Rio de Janeiro

DDS, MS, PhD, Assistant Professor, Department of Orthodontics, Federal University of Rio de Janeiro

Ana Maria Bolognese, Federal University of Rio de Janeiro

DDS, MS, PhD, Chair Professor, Department of Orthodontics, Federal University of Rio de Janeiro

Mônica Tirre de Souza Araújo, Federal University of Rio de Janeiro

DDS, MS, PhD, Assistant Professor, Department of Orthodontics, Federal University of Rio de Janeiro

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Published

2015-12-04

How to Cite

1.
Santos RL dos, Pithon MM, Souza MMG de, Bolognese AM, Araújo MT de S. Evaluation of palatal arches made from low-nickel stainless steel wire. Braz. J. Oral Sci. [Internet]. 2015 Dec. 4 [cited 2022 Sep. 24];8(3):149-53. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8642141

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