الفهرس 
Dentin MicrohardnessOnly 14 pages are availabe for public view
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Abstract
ٍSuccess in endodontic Therapy depends on chemomechanical debridement of the root canal system through the use of instruments and effective imiga souluation endodoic instrumentsproduces a smear layer and plugs of organic and inorganic particles of calcified tissue and organic elements the smear layer hider the penetration of intracanal medications and sealers into the dentinal tubles.