Fig. (3) high power photomicrograph showing the formation of new bone in a bony defect grafted with Bio-Oss^® Collagen (box in Fig. 2). New bone (N) with osteocytes (O) could be seen growing around the Bio-Oss^® granules (B) from the margin of the host bone defect (H). Capillaries (cap) were present. No cartilage was found. (periodic acid-Schiff stain, original magnification ×200).