DENTAL COLOUR SYSTEM AND METHOD TO PRODUCE DENTAL PROSTHESIS COLOURS

摘要

A dental color system is provided, which comprises a smaller number of primary colors and mixed colors and has the optimum colors conformable with natural teeth adjacent to a dental prosthesis. A dental color system includes primary colors and mixed colors assigned to coordinates in the CIElab color space in which the colors of natural teeth are primarily situated on coordinates within an oval space(18) having an assigned longitudinal axis(22). The primary colors consist of first primary colors(32,34,36,38) and at least one group of second primary colors(112). The coordinates of the first primary colors are situated on a baseline that extends from light to dark in the CIElab space and on the longitudinal axis of the oval space. The coordinates of the at least one group of second primary colors are situated on a plane(107,109) that intersects the longitudinal axis or baseline at right angles. The coordinates of the mixed colors are intersecting points of first and second straight lines(114), whereby at least one straight line extends parallel to the longitudinal axis or baseline and each of the second straight lines connects one coordinate of the first primary colors with one coordinate of the second primary colors.