Value, chroma, and hue of attached gingiva of blacks and whites were measured clinically with Munsell color tabs. The color of nonmottled gingiva of blacks and whites was similar. The color of gingiva pigmented by melanin in blacks was similar in hue, but lower in value and chroma than nonmottled gingiva.
University OFMichigan, Statistical ResearchLABORATORY: A Manual of Elementary Statistics Using MIDAS, Ann Arbor , Mi: Statistical Research Laboratory, 1975.
8.
Specifying Color by the Munsell System, D 1535-68, in ASTM Standards 1972, part 21, Philadelphia: American Society for Testing Materials, 1972 , pp. 270-291.