Abstract

CORROSION RESISTANCE OF ORTHODONTIC WIRES OF NI-CR AND NI-TI ALLOYS IN ARTIFICIAL SALIVA IN THE ABSENCE AND PRESENCE OF CIPROFLOXACIN HYDROCHLORIDE TABLET (500MG) ORALLY

V. Agnes Brigitta*, C. Thangavelu and S. Rajendran

ABSTRACT

Corrosion resistance of orthodontic wires of Ni-Cr and Ni-Ti alloys in artificial saliva in the absence and presence of Ciprofloxacin Hydrochloride tablet 500mg has been evaluated by electrochemical study such as polarization study. Polarization study leads to the conclusion that corrosion resistance of Ni-Cr alloy decreases in the order: Artificial Saliva > Artificial Saliva + Ciprofloxacin Hydrochloride. Hence, people clipped with orthodontic wire made of Ni-Cr alloy, should avoid taking Ciprofloxacin Hydrochloride tablet orally. For Ni-Ti alloy, polarization study leads to the conclusion that corrosion resistance of Ni-Ti alloy decreases in the order: Artificial Saliva + Ciprofloxacin Hydrochloride > Artificial Saliva. So, people clipped with orthodontic wire made of Ni-Ti alloy can take Ciprofloxacin tablet orally without any hesitation.

Keywords: Corrosion resistance, polarization, orthodontic wire, Ciprofloxacin Hydrochloride, Ni-Cr and Ni-Ti alloys.