1990 Volume 15 Issue 1 Pages 1-8
It has been reported that color selection by visual matching tended to lead to various problems, including mismatch of color. In none of the earlier studies, accuracy of visual color matching and other underlying problems had been examined in detaiL To formulate guidelines for color selection, colorimetric analysis was undertaken with the help of dentists who were requested to select color tones according to usual their clinical procedures.
The results showed that the accuracy of color matching was considerably influenced by distribution of color in adjacent teeth as a whole, and that the accuracy was dramatically diminished, as distribution of color in adjacent teeth became more complex. Difficulty in color selection was increased with a decrease in the lightness of tone. In such a case,dentists tended to select color tones from bluish to greenish shade. Although the accuracy of color matching did not depend on the term of clinical practice, experienced dentists tended to avoid selection of obviously different colors.
