模拟日光老化下油画颜料着色赝复体硅橡胶褪色过程的初步研究  

Fading process of prosthesis silicone elastomer colored by oil paint in simulated daylight

作　　者：占适龙[1] 贾安琦 江银华[1] 肖玉鸿 徐频频[1] 

机构地区：[1]浙江省丽水市人民医院口腔科,323000 [2]解放军昆明总医院口腔科

出　　处：《现代口腔医学杂志》2012年第2期86-89,共4页Journal of Modern Stomatology

摘　　要：目的研究不同浓度镉红油画颜料着色MDX4-4210赝复体硅橡胶的褪色过程,为临床赝复体的比配色提供指导。方法模拟日光老化条件下,以MDX4-4210硅橡胶为基质,硅铝包覆纳米TiO2为遮色剂,镉红油画颜料为着色剂,观察4种浓度(0.05%、0.1%、0.2%、0.4%)镉红油画颜料着色赝复体硅橡胶的褪色过程。结果 4种浓度镉红油画颜料着色赝复体硅橡胶的△E、△L、△a、△b值均有统计学差异(P<0.05),且变化主要集中在第一次照射,之后变化量逐渐减小。结论镉红油画颜料着色硅橡胶随着模拟日光照射时间的延长逐步褪色,且早期变化最显著。镉红油画颜料浓度增加,减少了色差变化,起到了抗模拟日光照射褪色的作用。Objective To study fading process of prosthesis silicone elastomer colored by oil paint in simulated daylight.Methods MDX4-4210 silicone elastomer as substrate,nano-TiO2 coated with Si and Al as masking agent,cadmium red oil paint as coloring agent,observed fading process of 0.05%,0.1%,0.2%,0.4% concentration of prosthesis silicone elastomer colored by cadmium red oil paint the aging in simulated sunlight conditions.Results The aging of the simulated sunlight conditions,the four concentrations of prosthesis silicone elastomer colored by cadmium red oil paint △E,△L,△a,△b values significantly different between（P0.05）,and the change focus on the first irradiation,then the variation decreases.Conclusion Prosthesis silicone elastomer colored by cadmium red oil paint as the simulation time sunlight gradually faded,and the most significant early changes.Increase in the concentration of cadmium red oil paint,reduce the color change,resistance to simulated sunlight played a role in bleaching.

关 键 词：硅橡胶 赝复体 遮色剂 纳米TIO2 

分 类 号：R783.2[医药卫生—口腔医学]