Color stability of microfilled, microhybrid and nanocomposite resins--an in vitro study.

Objectives: The aim of this study was to evaluate the effect of two beverages-Tea and Pepsi on the color stability of three different composite resins after a period of 7 and 30 days.

Methods: Color stability of a microfilled, microhybrid and nanocomposite was evaluated after storage in Tea, a carbonated drink or Distilled Water for 7 and 30 days. Color measurement was done using reflectance spectrophotometer based on the CIE L*a*b* color scale.