Three-Dimensional-Printed Poly-L-Lactic Acid Scaffolds with Different Pore Sizes Influence Periosteal Distraction Osteogenesis of a Rabbit Skull

Figure 4

Microstructure and biocompatibility of PLLA scaffolds with different pore sizes. (a) Optical images of PLLA scaffolds I, II, and III. (b) SEM showed the interconnecting microchannels of scaffolds. (c) PLLA scaffolds with different pore sizes displayed good biocompatibility with BMSCs.