Fig. 3From: Osteogenesis ability of CAD/CAM porous zirconia scaffolds enriched with nano-hydroxyapatite particles a Histological section demonstrating bone growth in control zirconia scaffold (white arrow). Mineralized bone formation (black arrow) was less dense compared to HA-enriched scaffolds. b Histological section showing different sizes of pores present in porous zirconia scaffolds (Control specimen). Mineralization started by lining pore walls (white arrow). Unmineralized bone stained blueBack to article page