Figure 2.

High magnification views of representative experimental and control samples at 2 weeks. All photographs were taken from the middle of the implants, showing the space between the implant threads. In these spaces of machined-surface implant (MI) (A), apatite-coated MI (AMI) (B), and oxysterol-loaded and AMI (D), thin bony trabecula that appeared sprouting from the recipient bone (black asterisks), approached the implant surfaces, whereas fibronectin-loaded and AMI (C) and sand-blasted, large-grit, and acid-etched surface implant (E) showed rims of newly formed bone contacting the implant surface (yellow asterisks) in most of the surface area, indicating contact osteogenesis. The scale bars in all panels represent 100 µm.