CH.Anupama, Y. Ravi Shankar, K.Srinivas, M. Harikrishna, P. Shameen kumar, T. Satyendra kumar

ABSTRACT

Aim: The purpose of this study is to evaluate the colour variation of samples prepared with various denture base materials i.e. heat cure (Compression moulding) self cure, light cure and microwave (Regular) methods and subjecting them to three different food colouring agents (Erythrosine, Tartrazine, Sunset yellow). Materials and Methods: 120 wax patterns were fabricated from metal die of dimensions 65×10.5×12mm (ADA Specification 1567). Prepared specimens were stained with erythrosine, Tartrazine & sunset yellow. These specimens were placed in artificial saliva with food colorants & placed in incubator at 37°c. Specimens were washed under distilled water and dried before measuring colour variation on 10, 20, and 30 days of immersion. Color variation of samples were measured using spectrophotometer Results: According to the statistical results obtained colour stability was more for heat cure material followed by microwave, light cure and self cure. Among the food colorants used samples placed in Sunset yellow were more stable followed by Tartrazine and Erythrosine. Conclusion: The results of the present study concluded that there was statistical significant colour change in erythrosine, Tartrazine and sunset yellow solutions. Microwave and heat cure samples showed highest colour stability followed by light cure and self cure.