Controlled Release of Granulocyte Colony-Stimulating Factor Enhances Osteoconductive and Biodegradable Properties of Beta-Tricalcium Phosphate in a Rat Calvarial Defect Model

Figure 4

High magnification images of aniline blue staining. Capital letters A–I correspond to the treatment groups. Newly formed bone (NB) appears as a homogenous dark blue area, which includes osteocytes. The remaining 𝛽-TCP shows a homogenous white area (asterisk). Bony bridging was nearly complete in groups F and G. Less residual 𝛽-TCP was seen in group G. Original magnification 100x; scale bar = 200 𝜇m.