Figure 2From: Effects of enamel matrix derivative and transforming growth factor-β1 on human osteoblastic cells Effect of EMD, TGF-β1 and the combination of both factors on cell growth. All treatments showed an increase in cell proliferation. The EMD proliferation rate was higher than the positive control at days 4 and 7. *P < 0.05; **P < 0.01; ***P < 0.001.Back to article page