COLOR MEASUREMENT OF HUMAN TEETH AND EVALUATION OF A COLOR GUIDE

In the present work the colour coordinates have been obtained in the C IELAB 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 w ith the range possible in human teeth. The results show that colour co ordinates of human teeth fall within an elliptical contour centered in a yellowish white. The colour guide studied did not cover all the pos sible values found for teeth chromaticities. (C) 1994 John Wiley & Son s, Inc.