Authors : R.Shanthini, M. Karthi, A.Raja, S.Raja, K.Prabhakar, Rehna Parvin.N
DOI : 10.18231/j.jco.2020.025
Volume : 4
Issue : 3
Year : 2020
Page No : 29-39
Objective: The aim of the invitro study was to analyze the color stability of monocrystalline and polycrystalline ceramic brackets after immersion in artificial saliva and a potentially staining health drink solution.
Methods: Twenty monocrystalline and twenty polycrystalline ceramic brackets of American orthodontics were immersed in artificial saliva and health drink solution intermittently for 15 months, respectively. Color changes were measured by a spectrophotometer and visual assessment scale at 0, 3,6,9,12,15 months. Statistical analyses were performed with IBM SPSS version 17. Data were assessed by Multivariate Profile Analysis, Analysis of Variance (ANOVA), and Multiple Comparison Tests of means.
Results: The results from the spectrophotometer and visual assessment show that the polycrystalline ceramic brackets showed a greater degree of stain uptake when immersed in a nutritive health drink solution and the monocrystalline ceramic brackets showed less staining at the end of 15 months.
Conclusion: Both the monocrystalline and polycrystalline ceramic brackets undergo staining when placed in staining solutions. Comparatively monocrystalline ceramic brackets produced less stain and were better than the polycrystalline ceramic brackets when immersed in a health drink solution by 25%. The combined effect of time, type of bracket, and type of staining solution had influenced the degree of stain uptake.
Keywords: Ceramic Brackets, Color Stability, Artificial Saliva, Staining Solution, U-V Spectrophotometer, Visual Assessment.