Abstract
Aim: This in vitro study was conducted to compare Color stability and Cytotoxicity of resin cement with color indicator vs conventional resin cement.
Methods: Sixty cement samples were prepared; 30 for Group I; Conventional resin cement (Maxcem EliteTM ) and 30 for Group II; Resin cement with color indicator (Maxcem Elite ChromaTM). Each group was divided into two subgroups; A: for color stability test(n=20) and B: for cytotoxicity test(n=10). Color stability was measured by vita easyshade spectrophotometer; half of samples were measured before and after immersion into distilled water and other half before and after1000 thermal cycles (TC). Cytotoxicity was measured by the methyl-thiazol-tetrazolium (MTT) colorimetric assay using WI-38 fibroblast cell after 24 and 48h. Data was collected and IBM® SPSS® Statistics Version 20 was used for analysis. The significance level was established at P ≤ 0.05.
Results: For color stability; higher mean of control group II (3.08) than group I (2.98) with no statistically significant difference between them (p=0.790) and higher mean of thermocycled group I (3.46) than group II (1.65) with statistically significant difference between them (p=0.014). For cytotoxicity; A statistically significant difference between Group I and Group II, with higher mean of group II (2.414% and 1.626%) than group I (1.764% and 0.166%) at 24 and 48 hours respectively.
Conclusions: After Tc Maxcem Elite ChromaTM more color stable than Maxcem EliteTM and more cytotoxic which decreased after 48h.
Keywords Color stability, Cytotoxicity, resin cement with color indicator, conventional resin cement.