In vitro corrosion resistance of orthodontic super stainless steel wire

Keun Taek Oh, ChungJu Hwang, Yong Soo Park, Kyoung Nam Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Generally, orthodontic stainless steel wires are made with 18-8 stainless steel, but because of the low localized corrosion resistance of this steel, the probability of corrosion is high. The desired properties for wires to be used in the oral cavity include high corrosion resistance and optimal mechanical properties. The metallurgical properties, corrosion resistance, and ion release properties of rectangular wire produced experimentally with super stainless steel (S32050) by a drawing process were evaluated, these properties compared with Remanium, Permachrome, G&Hwire, and Orthos, and the consequent capability of this steel to satisfy the optimal property levels required for orthodontic wire are discussed. Except for S32050, the wires formed twinned martensite in severely deformed grains. S32050 exhibited a low current density of about 1.6 μA/cm2 and a stable passive region in artificial saliva, but the comparative wires displayed high current density because of pitting that occurred above the breakdown potential. S32050 released only a small amount of nickel into the solution in spite of its high nickel content. The high corrosion resistance of S32050 wire inhibits the release of metallic ions in the oral cavity and therefore satisfies the requirements of orthodontic wire.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume149
Issue number9
DOIs
Publication statusPublished - 2002 Sep 1

Fingerprint

Stainless Steel
corrosion resistance
Corrosion resistance
stainless steels
Stainless steel
wire
Wire
Steel
Nickel
Current density
nickel
steels
Artificial Saliva
Ions
current density
saliva
cavities
pitting
low currents
Pitting

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

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abstract = "Generally, orthodontic stainless steel wires are made with 18-8 stainless steel, but because of the low localized corrosion resistance of this steel, the probability of corrosion is high. The desired properties for wires to be used in the oral cavity include high corrosion resistance and optimal mechanical properties. The metallurgical properties, corrosion resistance, and ion release properties of rectangular wire produced experimentally with super stainless steel (S32050) by a drawing process were evaluated, these properties compared with Remanium, Permachrome, G&Hwire, and Orthos, and the consequent capability of this steel to satisfy the optimal property levels required for orthodontic wire are discussed. Except for S32050, the wires formed twinned martensite in severely deformed grains. S32050 exhibited a low current density of about 1.6 μA/cm2 and a stable passive region in artificial saliva, but the comparative wires displayed high current density because of pitting that occurred above the breakdown potential. S32050 released only a small amount of nickel into the solution in spite of its high nickel content. The high corrosion resistance of S32050 wire inhibits the release of metallic ions in the oral cavity and therefore satisfies the requirements of orthodontic wire.",
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In vitro corrosion resistance of orthodontic super stainless steel wire. / Oh, Keun Taek; Hwang, ChungJu; Park, Yong Soo; Kim, Kyoung Nam.

In: Journal of the Electrochemical Society, Vol. 149, No. 9, 01.09.2002.

Research output: Contribution to journalArticle

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