Methods Osteoblast were obtained from rat calvaria bone and cultured with PLGA material, cells were observed under inverted microscope and environmental scanning electron microscope and recorded.

• 方法取大鼠颅盖骨成骨细胞与PLGA材料联合培养,采用倒置显微镜及环境扫描电镜观察成骨细胞生长情况。