Fig. 6

Van Gieson staining of bone tissue and hard tissue sections of the prosthesis (40x, bar = 250 μm). a The control group showed less bone formation around the prosthesis and intermittent bone formation(n = 10). b The chitosan group showed more bone formation around the prosthesis and continuous bone formation(n = 10). c The difference between the two groups’ bone-prosthesis contact rate and bone volume percentage was statistically significant (p < 0.05)