Abstract
Orthodontic treatment carries the risk of major complications such as enamel demineralization, tooth decay, gingivitis, and periodontal damage. A large number of elements of fixed orthodontic appliance results in the creation of additional plaque retention sites which increase the risk of biofilm creation. Modification of the surface of orthodontic elements may prevent the formation of bacterial biofilm. In this paper, surface modification of stainless steel orthodontic wires with TiO2: Ag was carried out by the sol-gel thin film dip-coating method. To obtain the anatase crystal structure, substrates were calcined for 2 h at 500 °C. The properties of the obtained coatings were investigated using scanning electron microscopy, X-ray diffraction, and electrochemical tests. Corrosion studies were performed in a Ringer’s solution, which simulated physiological solution. SEM and XRD analyses of the coated surface confirmed the presence of Ag nanoparticles which may have antimicrobial potential.
Highlights
IntroductionIt is justified to take all measures to prevent these negative phenomena [1,2]
The authors of the present study verified the selected properties of stainless steel orthodontic archwires coated with TiO2 :Ag
Based on the SEM and X-ray diffraction (XRD) analysis, opencircuit potential measurement, and potentiodynamic polarization, it was observed that the SEM analysis did not reveal cracking or delamination of the obtained TiO2 :Ag coating, and the XRD analysis revealed the presence of Ag nanoparticles, which indicates that the layer applied to stainless steel orthodontic archwires have antibacterial potential
Summary
It is justified to take all measures to prevent these negative phenomena [1,2]
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