Powers J M, Lepeak P J
J Dent Res. 1977 Nov;56(11):1331-5. doi: 10.1177/00220345770560110601.
The effect of specular reflection, background color and specimen thickness on the color of four commercial denture resins was studied by reflection spectrophotometry. Higher values of luminous reflectance and excitation purity were obtained with a white than with a black background, whereas dominant wavelength was lowered slightly.
通过反射分光光度法研究了镜面反射、背景颜色和样本厚度对四种商用义齿树脂颜色的影响。白色背景下的发光反射率和激发纯度值高于黑色背景，而主波长略有降低。
