Research Article
Effect of Vitamins D and E on the Proliferation, Viability, and Differentiation of Human Dental Pulp Stem Cells: An In Vitro Study
Figure 4
Mineralization of the extracellular matrix. (a) Mineralization was determined by alizarin red S staining. Strong matrix staining was observed in photomicrographs, which indicated the apparent formation of calcification nodules. (b) Measurement of absorbance (Optical Density, OD) of alizarin red stain extracted from cells under different treatments at 7, 14, and 21 days. Differentiation medium (DM). Asterisks show significant differences () with respect to the control group. Data are expressed as averages ± SD. Bar 200 μm.
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