الفهرس 
CONTENTSOnly 14 pages are availabe for public view
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Abstract
Because of the esthetic importance of the anterior teeth, the ii-oIored restorative materials were developed. The new irend of of discolored teeth with 30% hydrogen peroxide became the commonly used way for removal of the intrinsic and extrensic Some studies reported the undersirable effects of the ing agents on the mechanical properties of the composite resins. iiiitIgh the cavity varnish caused softening of composite resins, the w-i1led resin compatible cavity varnish was developed but still used This study was conducted to evaluate the effect of thc most uitmurnon1y used bleaching agent (30% hydrogen peroxide) and resin‘iiinnpatible cavity varnish on the physico-mechanical properties of iiisiiixofilled composite resin, posterior composite resin, type II glassiiiiIim Ier and metal reinforced glass-ionomer restorative materials. properties included the hardness, tensile strength, compressive rigth, solubility, and color change. ‘ateriaIs used in this Study: Superlux solar (microfihled composite resin). 3M restorative Zl00 (posterior composite resin). 3M vitrmer (type II glass-ionomer). Alpha-silver (metal reinforced glass-ionomer). 30% hydrogen peroxide (bleaching agent). -199- Because of the esthetic importance of the anterior teeth, the ii-oIored restorative materials were developed. The new irend of of discolored teeth with 30% hydrogen peroxide became the commonly used way for removal of the intrinsic and extrensic Some studies reported the undersirable effects of the ing agents on the mechanical properties of the composite resins. iiiitIgh the cavity varnish caused softening of composite resins, the w-i1led resin compatible cavity varnish was developed but still used This study was conducted to evaluate the effect of thc most uitmurnon1y used bleaching agent (30% hydrogen peroxide) and resin‘iiinnpatible cavity varnish on the physico-mechanical properties of iiisiiixofilled composite resin, posterior composite resin, type II glassiiiiIim Ier and metal reinforced glass-ionomer restorative materials. properties included the hardness, tensile strength, compressive rigth, solubility, and color change. ‘ateriaIs used in this Study: Superlux solar (microfihled composite resin). 3M restorative Zl00 (posterior composite resin). 3M vitrmer (type II glass-ionomer). Alpha-silver (metal reinforced glass-ionomer). 30% hydrogen peroxide (bleaching agent).