Abstract
The objective of this work will be to evaluate the effect of different bleaching treatments with or without the use of a violet LED light source on pigmented composite resins by evaluating the color change and surface roughness before and after the bleaching treatments. Resin composite specimens (Filtek Z350 XT - 3M ESPE and IPS Empress Direct - Ivoclar Vivadent) (12 mm diameter x 2 mm th…