Quantification of the skin's topography by skin profilometry

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Abstract
A method of skin profilometry is presented. The data generated using this method are used to uncover sources of variation in skin profilometry, provide information regarding the choice of roughness parameters best suited for characterizing the skin''s topography and determine if skin profilometry is a valuable tool for quantitatively assessing changes in the skin''s surface pattern. The roughness parameter values were dependent on the orientation of the tracings with regard to the major grooves and ridges present in the surface patterns. Large variabilities of roughness parameter values obtained for multiple scans within small areas of replicas are indicative of the nonhomogeneity of the skin''s surface. The number of peaks, mean peak size, mean depth of roughness, depth of smoothness and residual profile length appear to be the most utile roughness parameters for quantifying changes in the skin''s topography. The ability of skin profilometry to detect subtle changes in the skin''s surface pattern due to hydration indicates the method is a sensitive means of quantifying the skin''s topography.

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