Figure 4.

DNA damage in human gingival fibroblasts exposed for 6 h at 37°C to the mixture of methacrylate monomers containing 55% bisphenol A-diglycidyl dimethacrylate and 45% 2-hydroxyethyl methacrylate (w/w) (Bis-GMA/HEMA) measured as percentage in the tail DNA in comets of neutral version of the comet assay in dependence on Bis-GMA concentration. The mean value for one hundred cells analyzed at each concentration in three independent experiments is displayed, error bars represent SEM, ** p<0.01, *** p<0.001 as compared with unexposed controls.