Abstract
An investigation was made of the surface characteristics of two silicone base maxillofacial prosthetic materials, in terms of surface roughness and coefficient of friction, in order to compare these characteristics with those of human skin. Both elastomers were found to display lower frictional coefficient than the human skin and their surface texture did not seem to have an effect on these results. Oxidative treatment of the silicon surface increases the value of the frictional coefficient, probably due to the adsorption of atmospheric moisture.
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