الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 150 |  |  |
| | | from | 150 | | |
Abstract
This study was conducted to assess the effect of pre-bleaching and post-bleaching using three different in-office bleaching regimens (Laser-activated, Chemically-activated and Light-activated bleaching systems) on the color change of resin infiltrated demineralized enamel lesions compared to color change of sound bleached enamel