In the present work the colour coordinates have been obtained in the CIELAB system (L*,a*,b*) for the teeth of 600 individuals. to determine the region of the CIELAB space which contains all the different hues found in human teeth. In addition. one of the colour guides most used in dentistry has been studied to compare the hue range in this guide with the range possible in human teeth. The results show that colour coordinates of human teeth fall within an elliptical contour centered in a yellowish white. The colour guide studied did not cover all the possible values found for teeth chromaticities.
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Rubiño et al. (1994) studied this question.
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