الفهرس 
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Abstract
The aim of the study was designed to evaluate the clinical performance of
methacryalate based and siloxane based resin composites with regards to marginal
integerity, color match, proximal contact, post operative hypersensitivity and
occlusal wear at different treatment intervals. In addition an occlusal wear
assessment of epoxy resin casts at different treatment intervals was measured using
Scanning Electron Microscope (SEM).