Department of Prosthodontics, School of Dentistry, National University of Brasília, Brasília, DF, Brazil.
Braz Oral Res. 2009 Oct-Dec;23(4):386-92. doi: 10.1590/s1806-83242009000400007.
The purpose of this study was to assess color alteration of the paints used for iris painting in artificial eyes. Five disks of heat cured acrylic resin were confectioned by microwave energy for each paint analyzed, in a total of 40 specimens. Each specimen consisted of a colorless acrylic resin disk and another of equal size, of scleral white colored acrylic resin, with the painting interposed between the two disks. The specimens were submitted to an accelerated aging process in a chamber under ultraviolet radiation for 1,008 hours. To assess color variation, a reflective spectrophotometer was used. The results were statistically analyzed by ANOVA and the Tukey test (p < 0.05). All the paints underwent chromatic alteration. The oil paint presented the highest resistance to accelerated aging.
本研究旨在评估用于虹膜画的颜料在人造眼球中的颜色变化。对每种分析的颜料，通过微波能量共制作了 5 个热固性丙烯酸树脂圆盘，总计 40 个标本。每个标本由一个无色丙烯酸树脂圆盘和另一个同样大小的巩膜白色丙烯酸树脂圆盘组成，将颜料夹在两个圆盘之间。将标本在紫外线辐射下的腔室内进行加速老化处理，共 1008 小时。为了评估颜色变化，使用反射分光光度计。结果通过方差分析和 Tukey 检验（p<0.05）进行统计学分析。所有的颜料都发生了颜色变化。油画颜料对加速老化的抵抗力最高。
