Polymeric vs hydroxyapatite-based scaffolds on dental pulp stem cell proliferation and differentiation

Figure 1 Scanning electron microscopy microphotographs of human dental pulp stem cells attachment and morphology on four different scaffolds. A: SureOss (Allograft); B: Cerabone (Xenograft); C: OSTEON II Collagen (Composite); D: PLLA (Synthetic); E and F: PLLA at lower magnification; G and H: Cerabone at lower magnification. Note that cells were covered almost the entire scaffold surface of PLLA (D-F). Also note that attached cells on PLLA surface showed fibroblastic morphology (D-F), whereas cells on Cerabone and OSTEON II Collagen demonstrated osteoblasic phenotype (B, C, G, H).