الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Within the limitations of this study it may concluded that: 1-Shofu HC and IPS e.max showed affinity to staining but Shofu HC showed higher stain ability. 2-Office and home bleaching techniques affected the color of both ceramics materials and home bleaching showed higher significant difference. 3-Shofu HC showed higher color change after home and office bleaching than IPS e.max.