Influence of a candy on the corrosion resistance of orthodontic wire made of Gold 18K in the presence of artificial saliva

Dennis Antony Wilfred; Maria Joany Rajendran; Dorothy Rajendran; Anitha Nilavan; Susai Rajendran; Caslav Lacnjevac

doi:10.5937/zasmat2301058A

Authors

Dennis Antony Wilfred St John's Public School, Medavakkam, Chennai, India Author
Maria Joany Rajendran Sathyabama Institute of Science and Technology (Deemed to be University), Department of ECE, Chennai, India Author
Dorothy Rajendran AMET University, Department of EEE, Chennai, India Author
Anitha Nilavan St. Antony's College of Arts and Sciences for Women (Affiliated to Mother Teresa Women's University, Kodaikanal), Department of Chemistry, Corrosion Research Centre , Dindigul, India Author
Susai Rajendran St. Antony's College of Arts and Sciences for Women (Affiliated to Mother Teresa Women's University, Kodaikanal), Department of Chemistry, Corrosion Research Centre , Dindigul, India + Pondicherry University, Centre for Nanoscience and Technolgy, Puducherry, India Author
Caslav Lacnjevac University of Belgrade, Faculty of Agriculture, Serbia Author

DOI:

https://doi.org/10.5937/zasmat2301058A

Keywords:

corrosion resistance, Gold 18K alloy, artificial saliva, éclairschocolate candy, potentiodynamic polarization study, electrochemical impedance spectra (EIS), pediatric dentistry

Abstract

Corrosion resistance of an orthodontic wire made of Gold 18K alloy immersed in artificial saliva in the absence and presence of 500 ppm of Éclairschocolate candy has been investigated by potentiodynamic polarization study and electrochemical impedance spectra (EIS). It is observed that corrosion resistance of Gold 18K alloy immersed in artificial saliva in the presence of 500 ppm of Éclairs chocolate candy increases. Hence it is concluded that people clipped with orthodontic wire made of Gold 18K alloy need not worry about taking Éclairs chocolate candy orally. When Gold 18K alloy is immersed in artificial saliva in the presence of 500 ppm of Éclairs chocolate candy, Linear Polarisation Resistance (LPR) value increases from 4844947 Ohmcm2 to 35700904 Ohmcm2 ; corrosion current decreases from 7.726x10-9A/cm2 to 1.350x109A/cm2 ; charge transfer resistance value(Rt) increases from 172100 Ohmcm2 to 398800 Ohmcm2 ; impedance value increases from 5.445 to 5.975; double layer capacitance decreases from 2.963x10-11F/cm2 to 1.1279x10-11F/cm2 , and phase angle increases from 44.68° to 48.23°.

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