A Comparison of the Process of Remodeling of Hydroxyapatite/Poly-D/L-Lactide and Beta-Tricalcium Phosphate in a Loading Site

Figure 6

Tissue sections were stained with Villanueva Goldner (VG) stain and viewed at ×20 magnification. ((a), (c), and (e)) TCP group. ((b), (d), and (f)) HP group. ((a), (b)) 1 month. ((c), (d)) 3 months. ((e), (f)) 12 months. (g) Area of bone formation. (h) Area of residual composite. (i) Area of osteoid formation. β-TCP (grey box), HA/PDLLA (black box). (g) The HP and TCP groups showed the same level of bone formation, and both groups showed significant increases of bone formation over time. (h) The HP group represented superior scaffold resorption. (i) Both groups demonstrated a low level of osteoid formation at 1 and 3 months, although both groups showed significantly higher osteoid formation at 12 months. : versus TCP group. †: versus 1 month. §: versus 3 months. Scale bars: 1.0 mm.