Fig. 2From: Reducing the risk of impaired bone apposition to titanium screws with the use of fibroblast growth factor-2−apatite composite layer coatingBone apposition rate for FGF(+) and FGF(−) (a), and for titanium screws Ti, 25F0, 25F0.5, 25F1, 25F2, and 37F4 (b). The data shown are means ± SD. The combination of 25F0.5, 25F1, 25F2, and 37F4 is abbreviated as FGF(+), and the combination of Ti and 25F0 is abbreviated as FGF(−)Back to article page