Fig. 4

SEM microphotograph showing, A Average pore sizes (143 µm) of PCL-NC-HA scaffold. B Average pore sizes (126 µm) of PCL-NC-Mg-HA scaffold. Phase contrasts of DPSCs 14 days after odontogenic differentiation induction showing: C Transformation of the cultured DPSCs morphology after being induced using OM in the positive control group (black arrows) refers to the elongated cells. D Transformation of the cultured DPSCs morphology after odontogenic differentiation induction using OM in the positive control group from another sample confirmed the transformation that occurred in the treated cells. (100X). E Scan electron micrograph of scaffold from sample of subgroupA2 that treated with Theracal LC material extract showing cells attached in groups on the scaffold's surface properly (black arrows). Many mineralized nodules were formed on the scaffolds surface (white arrow)