Fig. 10.
Effect of LLLT on cellular proliferation 24 h after irradiation. Mean absorbance with the confidence interval for each group is presented. The mean absorbance of the cells treated with 0.1, 0.2 and 1.2 J/cm2 was significantly increased compared to the other groups (p < 0.0001). There was no significant difference between the non-irradiated cells cultured in serum-deprived medium and the cells irradiated with 10 J/cm2 at that time point (p = 0.3642). a,b Values with different letters are significantly (P < 0.05) different