Surface Roughness of CoCr and ZrO<sub>2</sub> Femoral Heads with Metal Transfer: A Retrieval and Wear Simulator Study

<table>(a) Control CoCr surface reveals residual polishing marks; (b) region of metal transfer (1000X).</table>

International Journal of Biomaterials

Figure 3: Surface Roughness of CoCr and ZrO<sub>2</sub> Femoral Heads with Metal Transfer: A Retrieval and Wear Simulator Study 