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Color Stability of Visible Light Cured Composite Resin After Soft Drink Immersion
Composite resin is tooth-colored filling material containing Bis-GMA which exhibits water sorption properties.People tend consume soft drink with various colors. Water sorping properties can alter the color stability of composite resin purpose. This study was to determine the influence of immersion durations of composivte resin in soft drink on color stability. The visible light cared hybrid composite resin and sof drink were used. Ten disk spencimens (2.5 mm thickness and 15 mm diameter) of composite resin were prepared and light cured for 20 seconds in distilled water for 24 hours at 27⁰C. The intial color of specimens were meassured by Chromameter. After that, each specimen was immersed in 30 ml of soft drink up to 48.72, and 98 hours at 37⁰C. . The specimens color were measured again aftereach immersion. The color changes were calculated CIE ˟a˟b˟ system formula . The data was analyzed by one. Way ANOVA and LSD (a=0.05). The ANOVA showed that the immersion duration of composite resin in soft drink had significant influence on the color stability (p
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