Bone Response to Surface-Modified Titanium Implants: Studies on the Early Tissue Response to Implants with Different Surface Characteristics

Figure 6

Three weeks after implantation. The cortical bone surface facing the implant surface is characterized by marked signs of resorption (large arrow heads) and the occurrence of new bone formation (small arrow heads). The border between the lamellar cortical bone and the newly formed bone is visible (arrows); (a) Machined (control) sample. Bar = 200 μm; (b) glow discharge cleaned and nitrided sample. Bar = 200 μm; (c) glow discharge cleaned and thermally oxidized sample. Bar = 200 μm.