Saudi Journal of Oral and Dental Research (SJODR)
Volume-2 | Issue-11 | 286-291
Original Research Article
An Evaluation of Corrosion on Commercially Available Orthodontic Brackets Using UV-VIS Spectrophotometre and Small Angle Xray Scattering: An In Vitro Study
Akshai Kannan, B Jayan, Madhu Singh
Published : Nov. 30, 2017
Abstract
The aim of this study was to compare three types of commercially
available brackets for corrosion susceptibility after immersing them in artificial
saliva. A total of 360 brackets were used. The brackets were divided in to four groups
(Control Group X and Experimental Groups A, B and C). The experimental groups
were divided on the basis of duration of immersion in artificial saliva of pH 6.75 ±
0.15. Each group was divided in to corresponding subgroups. The bracket surfaces
were analysed using UV –Visible Spectrophotometer and Small Angle Xray
Scattering (SAXSS). ANOVA (Analysis of One Way Variance) was used for group
comparisons. For post hoc comparisons Newman-Keuls multiple posthoc procedure
was applied. Leone and Nu Edge Cr- Co brackets showed progressive signs of
corrosion and leaching of Fe and Mg ions after immersion in artificial saliva.
Discovery SL brackets showed no signs of corrosion. Leone and Cr-Co Nu Edge are
susceptible to corrosion activity in comparison to Discovery SL brackets.