Figure 3

Photomicrograph of decalcified sections stained with H&E showing bone healing of tibial defect after one month. (A) The central part of the of the control bone defects containing thick bands of typically organized granulation tissue (arrowhead) and scanty thin trabeculae of woven bone (asterisks). (B) Bone defect of ACTIVA group showing woven bone trabeculae at the interface with the medullary bone (arrowhead) with osteoblastic cells proliferation within osteoid matrix (asterisks). (C) The central part of the bone defects of MTA-HP group showing woven bone trabeculae with wide marrow spaces (asterisks) and a little amount of mature granulation tissue (arrowhead). (D) The central part of the bone defects of iRoot Plus group showing marked woven bone formation of normal trabecular structures with narrow marrow spaces (asterisks) and a lesser amount of well-organized and mature granulation tissue formation (arrowhead), scale bar = 25 µm.