Influence of Roseday-5 tablet on corrosion resistance of SS 316L in artificial saliva

• N. Karthiga¹, J.M. Praveena¹, A. Deepika¹, A.J.A. Fathima¹, R. Bhuvaneshwari¹, G.D. Christina¹, V.D. Mary¹, N. Renuga Devi², T. Umasankareswari³ and S. Rajendran¹

¹ Corrosion Research Centre, Department of Chemistry, St Antony’s College of Arts and Sciences for Women, Dindigul-624005, India
² Department of Zoology, GTN Arts College, Dindigul-624005, India
³ Department of Chemistry, Rajapalayam Raju’s College, Rajapalayam, India

Abstract: Regularly grown teeth lead to beautiful and attractive smiles that will attract everyone. But some people have irregularly arranged teeth. These less fortunate people go to doctors to regularize the growth of teeth. The dentists in turn recommend the use of orthodontic wires, made of various alloys. In the oral environment in presence of saliva these wires undergo corrosion. Apart from this, these wires undergo further corrosion when we take various tablets, juices and food items. In the present work the influence of a tablet Roseday-5 mg, on the corrosion resistance of orthodontic wire made of SS 316L alloy, in artificial saliva has been evaluated. The corrosion resistance of SS 316L alloy in artificial saliva, in the absence and presence of Roseday-5 mg has been evaluated by polarization study and AC impedance spectra. Polarization study reveals that in the presence of Roseday-5 mg, LPR value increases from 1973954 to 2053646 Ohm·cm². Corrosion current decreases from 2.245·10^-8 to 2.139·10^-8 A/cm². That is, in presence of Roseday-5 mg, the corrosion resistance of SS 316L alloy in artificial saliva increases. AC impedance study reveals that in the presence of Roseday-5 mg, Rt value increases from 320260 to 416460 Ohm·cm². The C_dl value decreases from 1.5925·10^-11 to 1.2246·10^-11 F/cm². That is in the presence of Roseday-5 mg the corrosion resistance of SS 316L alloy in AS increases. It is concluded that people clipped with orthodontic wire made of SS 316L alloy need not hesitate to take Roseday-5 mg orally.

Keywords: artificial saliva, corrosion, Roseday-5, orthodontic wires, SS 316L alloy, electrochemical studies

Int. J. Corros. Scale Inhib., 2020, 9, no. 2, 595-606 PDF (437 K)
doi: 10.17675/2305-6894-2020-9-2-14

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