AIM:To investigate the effect of a newly developed ethylenediamine modified to polylactic acid(EMPLA) on osteoblasts,and to compare polylactic acid(PLA) with the glass as control.

• 目的:研究乙二胺改性聚乳酸(EMPLA)对成骨细胞的影响作用,并与聚乳酸(PLA)和玻璃(对照)作了对比。