Objective By observing different concentration of transforming growth factor beta 1(transforming growth factors beta 1,TGF-β1)of the implant surface osteoblast in osteocalcin(osteocalcin,OC)expression and the effect of in order to investigate its effect on osteoblast differentiation on the surface of the implant.Methods Osteoblast were divided into two groups:the control group and the induced group.The cells were collected on Days 1,3,7after treatment.The expression of osteocalcin(BSP)mRNA were detected by ...