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Dana Jafarpur

Shiraz University of Medical Sciences, Iran

Title: The effect of two Nano filled resin-based coatings on color stability of five glass ionomer restoratives immersed in three different food simulating solutions

Biography

Biography: Dana Jafarpur

Abstract

Objectives: To evaluate the effect of different Nano filled resin coatings on the staining susceptibility of glass ionomer restoratives after immersion in three food simulating solutions (FSS).
 
Methods: Five encapsulated glass-ionomer restoratives (Riva light-cure (SDI), Riva self-cure (SDI), Fuji II LC (GC), Fuji Bulk (GC) and Equia Forte Fil (GC)) and two Nano filled coatings (EQUIA Coat (GC) and G-Coat plus (GC)) were employed. All specimens were immersed in distilled water for 24 h and then subjected to a color measurement with a spectrophotometer. Then the samples were divided into three subgroups and immersed for another one week in lactic acid (0.1mol/L), coffee, and distilled water (control) respectively. The differences in the lightness and chromaticity values (ΔL, Δa, Δb) were determined and the total color change (ΔE) was calculated using the formula: ΔEn= [( ΔLn)2+( Δan)2 + ( Δbn)2]1/2.