Fig. 4

Scanoscope images for ALP stained different experimental groups of DPSCs. Original magnification 1.4×. Scale bar 1 mm. a, b, c EMD at concentrations of 50, 100, 200 μg/ml respectively. d, e, f PDGF at concentrations of 5, 10, 20 ng/ml respectively. g, h, i MTA at concentrations of 0.02, 0.2, 2.0 mg/ml respectively. j Percent total positive staining area for different concentrations of each examined material