The objective of this study was to improve the wear behaviour of acrylic bone cements by substituting the conventional inorganic radiopaque agents (BaSO4, ZrO2) for different iodinated radiopaque monomers which can co-polymerize with the methyl methacrylate monomer, MMA. To this aim, the wear behaviour of the pair Ti–6Al–4V–UHMWPE (ultra high molecular weight polyethylene) was studied in the absence and in the presence of cement particles (the third body).
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