The impact of candies on the corrosion resistance of orthodontic wires composed of SS 316 L alloy and SS 18/8 alloy when immersed in artificial saliva

Authors

  • Iruthayaraj Vinnarasi Suganya Corrosion Research Centre, St Antony’s College of Arts and Sciences for women, Dindigul, (Affiliated to Mother Teresa Women’s University, Kadaikanal) Tamil Nadu, India Author
  • Anita Nilavan Corrosion Research Centre, St Antony’s College of Arts and Sciences for women, Dindigul, (Affiliated to Mother Teresa Women’s University, Kadaikanal) Tamil Nadu, India Author
  • Rajendran Susai Corrosion Research Centre, St Antony’s College of Arts and Sciences for women, Dindigul, (Affiliated to Mother Teresa Women’s University, Kadaikanal) Tamil Nadu, India Author https://orcid.org/0009-0003-4184-2044

DOI:

https://doi.org/10.62638/ZasMat1574

Abstract

Properly aligned teeth are visually appealing. Nevertheless, certain individuals possess teeth that are inherently misaligned. To address this issue, orthodontists employ orthodontic wires. After these wires are installed, individuals may consume a range of food items, drinks, and medications, which could lead to the deterioration of the orthodontic wires. Furthermore, the wire undergoes corrosion upon contact with saliva.This research investigates the corrosion resistance of orthodontic wires composed of SS 316 L alloy and SS 18/8 alloy when submerged in artificial saliva, both with and without the presence of three different types of candies. A polarization study has been employed to carry out this analysis. The results reveal that: Individuals with orthodontic wires made from SS 316 L and SS 18/8 alloys can safely enjoy candies A [Cofsils (Ginger)], B [Takha Masala Jelly], and C [Candy Man (Eclairs)]. Additionally, the orthodontic wire fabricated from SS 316 L exhibits superior performance in comparison to the wire made from SS 18/8 alloy. The surface morphology has been examined using SEM, AFM, and contact angle measurements. It has been noted that when SS 316 L is submerged in artificial saliva, the AFM image appears to be smoother compared to that of the SS 18/8 alloy. The AFM parameters for the SS 316 L alloy are comparatively lower than those for the SS 18/8 alloy. The contact angle for the SS 316 L alloy is relatively higher than that of the SS 18/8 alloy. The hydrophobicity of the SS 316 L alloy is also greater than that of the SS 18/8 alloy. Conversely, the wettability of the SS 316 L alloy is lower than that of the SS 18/8 alloy. This research concludes that individuals with orthodontic wires composed of SS 316 L and SS 18/8 alloys can safely enjoy candies A, B, and C without any reservations. Orthodontic wire made from SS 316 L is of higher quality compared to that made from SS 18/8 alloy.

Keywords:

Corrosion resistance, Orthodontic wire, SS 316 L and SS 18/8 alloys Artificial Saliva, candies, SEM, AFM, contact angle measurements

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15-06-2026

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