الفهرس 
Surface roughness and color stability of two milled esthetic restorative materials in different oral media
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Abstract
Purpose : The aim of this in vitro study was to evaluate the effect of different oral media (acid media, topical fluoride and mouth wash) on the surface roughness and color stability of two milled esthetic materials (composite resin materials and feldspathic ceramic materials). Conclusion: Milled composite resin materials provided comparable results to milled feldspathic ceramics with regard to roughness and color change after immersion in media with different pH