Wozniak W T, Moser J B, Willis E, Stanford J W
J Prosthet Dent. 1985 Feb;53(2):204-9. doi: 10.1016/0022-3913(85)90110-6.
The ultraviolet light color stability of seven commercial composite resins was evaluated after 1, 8, and 15 days of exposure. Color differences between exposed and unexposed specimens stored for identical time periods were determined. Samples exposed to ultraviolet light showed large changes in Munsell Hue and Chroma, with smaller but significant changes in Value. Unexposed samples showed small changes in the Munsell components in some cases opposite those observed for the exposed samples. Statistical analysis showed that although significant color changes were observed, brands of composite resins could not be distinguished by length of storage in the dark. Time of exposure was a significant variable at 24 hours and 8 days. At 15 days a number of composite resins did not undergo additional significant color change. Scanning electron microscope showed a significant roughening of the surface of exposed composites with resin breakdown and exposure of the composite filler.
在暴露1天、8天和15天后，对7种市售复合树脂的紫外光颜色稳定性进行了评估。测定了在相同时间段内储存的暴露和未暴露试样之间的颜色差异。暴露于紫外光的样品在孟塞尔色调和彩度上有很大变化，明度变化较小但显著。未暴露的样品在某些情况下孟塞尔分量有微小变化，与暴露样品观察到的情况相反。统计分析表明，尽管观察到了显著的颜色变化，但复合树脂品牌不能通过在黑暗中的储存时间来区分。暴露时间在24小时和8天时是一个显著变量。在15天时，许多复合树脂没有经历额外的显著颜色变化。扫描电子显微镜显示，暴露的复合材料表面因树脂分解和复合填料暴露而显著粗糙。
