Effects of TEGDMA, HEMA, and H
on the mRNA expression levels of DSPP, OCN, and OPN. Cells were treated with 0.5 mM TEGDMA, 2 mM HEMA, or 0.2 mM H2O2 for 24 hrs. Each error bar represents the standard deviation of three independent experiments. * indicates significant (p < 0.05) differences between the control and test groups.