Bone growth against the PEEK implants (A) as well as the AD+MW (C) and AD+MW+AC (E) coated implants at 6 weeks. The tissue sections stained with paragon and counter-stained with Aniline Blue show the ossified tissue blue (white arrows) and the fibrous tissue pink (yellow arrows). The implant (I) is seen as black in the slides. Mineralized tissue was seen to be highly cellular at 6 weeks (B,D,F). Scale bar 9 mm (A,C,E); 500 μm (B,D,F).