Abstract
I had to grasp of color studies and an Optical observation of silicone resin and the color which were maxillofacial epitase materials precisely and examined it. I chose transparent silicone resin and five colors pigments (brown, white, yellow, blue, red) as maxillofacial epitase materials. I produced five colors of monotone color samples on three kinds of thicknesses: 1.0, 2.0, 3.0 mm. White and brack background were used as a measurement for colors. With a spectrophotometer, I calculated the dispersion coefficient (K) and the absorption coefficient (S) based on the Kubelka-Munk theory. I produced a two-colors compound color sample with thicknesses of 1.0, 2.0, 3.0 mm and measured them. A color of a compound color material used a dispersion coefficient and the absorption coefficient that I calculated from a sample of three kinds of thicknesses based on a formula of Duncan and predicted it. I compared the actual survey value with the prediction value of each compound color material and calculated a color-fixer. The average dE value was 6.77, between a prediction value and actual survey values with monotone color samples of thickness of 1.0mm were 11.95, greatest color-fixer minimum color-fixers was 4.25. Tolerance level of a color-fixer to be able to put in the mouth is reported as 3.7-3.8. Besides, it faces each other in the gloomy mouth, and a color-fixer at the sensitive face skin surface and maxillofacial epitase interval of a color must lowered it more.
