Figure 13
Levels of alkaline phosphatase activity in the mediums containing osteoblasts cultured on implant surfaces. A. in medium wih fetal calf serum (FCS), evaluated on day 8, 14, 21 and 28 (*p < 0.05); B. in serum-free medium, SF (collected on day 21 and 28), simple (OS) and complex (OC) differentiation mediums (collected on day 35) Legend: noninfiltrated, control Ti (Ti control), titanium infiltrated with hydroxyapatite (Ti HA), Ti infiltrated with silicatitanate (Ti SiO2), cells cultivated on plastic dishes (ctrl).