Fig. 3From: PDGFRβ+/c-kit+ pulp cells are odontoblastic progenitors capable of producing dentin-like structure in vitro and in vivoDental pulp cell proliferation assay. In a 6-day assay period, PDGFRβ+/c-kit+ and PDGFRβ+ cells proliferated significantly faster than that of whole pulp cells and PDGFRβ− cells from day 4 to day 6Back to article page