Comparative Evaluation of the Discoloration of Microhybrid and Nanohybrid Composite Resins by Different Beverages: A Spectrophotometric Analysis.

Background: Composite resins are choice of restorations due to their lifelike characteristics. Recently "microhybrid" and "nano- hybrid" composites have been introduced. Microhybrids and Nanocomposites have a small particle size and possess better qualities as compared to traditional composite resins.