Fig. 4. Histologic images of the implant sites. Upper: Hematoxylin-and-eosin (H&E)-stained images at lower magnification (12.5×). Scale bar = 500 µm. A - C: Exp. groups. D - F: Control groups. A, D: 2 weeks after implant placement. B, E: 4 weeks after implant placement. C, F: 8 weeks after implant placement. Black arrows indicate empty lacunae (H&E, original magnification 100×. Scale bar = 200 µm).
