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The effect of two nano filled resin-based coatings on color stability of five glass ionomer restoratives immersed in three different food simulating solutions
3rd International Conference on Prosthodontics & Restorative Dentistry
April 16-17, 2018 | Las Vegas, USA
Dana Jafarpur
Shiraz University of Medical Sciences, Iran
Scientific Tracks Abstracts: Oral Health Dent Manag
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), 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 (0.1 mol/L), coffee and distilled water (control) respectively. The differences in the lightness and chromaticity values (�?L, �?a, �?b) were determined and the total color change (�?E) was calculated using the formula: Results: Three-way ANOVA showed a significant interaction effect between materials, coatings and solutions for the color change values. Therefore, one-way ANOVA was used to compare different variables between the materials. Color change values (�?E) varied depending on the material and solution. G-Coat Plus exhibited lower color change values compared to the EQUIAcoated and the uncoated groups. The effect of immersion in FSS on color change values among materials varied depending on the type of coating.
Biography :
Dana Jafarpur is a sixth year Dental student at Shiraz University of Medical Sciences. Next semester she will be graduating Summa cum laude from Shiraz Dental School and has written a book on Forensic Dentistry and published 5 papers during her undergraduate studies.
Email:djafarpur@yahoo.com