Fig. 4

Success rate of primary cell culture and growth state of DPSCs-IPs compared with DPSCs-NPs and SHED. Primary cell culture success rate of three kinds of dental pulp-derived stem cells. a Cell growth curves of three kinds of dental pulp-derived stem cells. b Cell cycle determination of three kinds of dental pulp-derived stem cells. c Cell proliferation rate of three kinds of dental pulp-derived stem cells. d Cell proliferation index of three kinds of dental pulp-derived stem cells. *P < 0.05. DPSCs-IPs dental pulp stem cells isolated from inflammatory dental pulp tissues, DPSCs-NPs dental pulp stem cells from normal dental pulp tissues, SHED stem cells from human exfoliated deciduous teeth