Year : 2015

Volume : Volume 5

Issue : Issue 2

Address for correspondence :
Dr. Pragati Kaurani
smile.pragati@gmail.com

Abstract

Aim:  To compare the colour stability different types of provisional restorative materials in commonly consumed food colorants in India. Materials and Methods: The six different types of provisional restorative materials used were heat-cured polymethyl methacrylate provisional restorative material, self cured poly methyl methacrylate temporary material, light cured composite resin material, chemically cured bis-acrylic composite resin temporary material, self cured composite resin composite resin temporary material and dual cured composite resin. 50 specimens in the shape of discs were prepared from each material.  10 specimens of each type were immersed in 4 staining solutions - tea, coffee, cola and rasam. The color change of the specimens was recorded using a reflectance spectrophotometer. The results were analysed using ANOVA analysis. Results: All the materials showed statistically significant color change in all the colorants.   Heat-cured polymethyl methacrylate material showed the least color change while light cured composite resin showed the maximum color change in all solutions. Conclusion: The provisional restorative materials tested in the present study did not show satisfactory color stability in the food colorants that are commonly consumed in India.

Keywords: Colour stability, Spectrophotometer, Provisional Restorations.