Results of ex vivo investigation of Mg-5Gd, Mg-10Gd, PEEK and Ti screw implants over 4, 8, 12 weeks healing period from histological analysis. (A) 2D Bone implant contact (2D BIC), (B) 2D Bone area (2D BA) for 200 μm, (C) Tartrate resistant acid phosphatase-positive area (TRAP) in a 200 μm ROI around the screw surfaces (Error bars correspond to 99% confidence interval). See Table 7 for numeric values.