COLOR STABILITY AND CYTOTOXICITY OF RESIN CEMENT WITH COLOR INDICATOR VS CONVENTIONAL RESIN CEMENT (IN-VITRO STUDY)

Document Type : Original Article

Authors

1 Demonstrator of Dental Materials, Biomaterials Department, Faculty of Dentistry, Minia University, Minia, Egypt.

2 Professor of Dental Materials, Biomaterials Fepartment, Faculty of Dentistry, Minia University, Minia, Egypt.

3 Lecturer of Dental Materials, Biomaterials Fepartment, Faculty of Dentistry, Minia University, Minia, Egypt.

Abstract

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.

Keywords

Main Subjects