FIGURE 3.

(a) Schematic drawing of the implant; (b) Optical microscopy of an uncoated thermoplastic polyurethane (TPU) implant showing the bilayered construction of Bionate® (DSM Biomedical, Geleen, the Netherlands) II 80A and 75D and medium surface roughness with an R_a 8.40 μm; (c) Electron microscopy 5,000× magnification of a biphasic calcium phosphate (BCP) coated implant showing the BCP particles embedded on the TPU; (d) Electron microscopy 5,000× magnification of the same implant as in (c) after the BCP particles were dissolved using 1 M hydrochloric acid revealing crater‐like holes which confirmed deep embedding of the particles in the TPU surface