...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites
【24h】

Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites

机译：与常规和低收缩复合材料的颜色和半透明相关的未填充树脂混合物和固化复合材料的折射率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study correlated the refractive indices (RIs) of unfilled resin mixtures and resin-based composites (RBCs) with color and translucency of conventional and low-shrinkage RBCs. Unfilled resin mixtures based on different ratios of conventional monomers Bisphenol A-glycidyl-methacrylate (BisGMA)/triethyleneglycol-dimethacrylate (TEGDMA) and urethane-dimethacrylate (UDMA)/TEGDMA and a low-shrinkage monomer FIT-852 (FIT, Esstech Inc.)/TEGDMA were used to prepare model RBCs, containing 30 wt % of the organic matrix and 70 wt % of silanated barium-glass fillers (n=1.553, Esstech Inc.). The RIs of resins were measured on an ABBE refractometer, those of cured RBCs using the Becke-line method in immersion oils. Color and translucency were determined using an AvaSpec-2048 (Avantes BV) spectrometer. The RIs of unfilled resin mixtures decreased with increasing amounts of TEGDMA. Cured RBCs had higher RIs than their respective resin mixtures. BisGMA-based composites were more translucent with significantly lower L* values than FIT- and UDMA-based RBCs. The RIs of unfilled resins positively correlated with cured RBCs (p=0.001), as did the RIs with translucency (p=0.001) and color (p=0.008). Resin mixtures and corresponding RBCs based on UDMA and its modified low-shrinkage version, FIT, showed similar optical properties. The RIs of unfilled resins appeared to be good predictors of the RIs of cured RBCs. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 7-13, 2017.
机译：本研究将未填充树脂混合物和树脂基复合材料（RBC）的折射率（RIs）与传统和低收缩RBC的颜色和半透明性关联起来。使用基于常规单体双酚A-甲基丙烯酸缩水甘油酯（BisGMA）/三甘醇二甲基丙烯酸酯（TEGDMA）和聚氨酯二甲基丙烯酸酯（UDMA）/TEGDMA的不同比例的未填充树脂混合物以及低收缩单体FIT-852（FIT，Esstech Inc.）/TEGDMA制备模型RBC，含有30 wt%的有机基质和70 wt%的硅烷化钡玻璃填料（n=1.553，Esstech Inc.）。树脂的RIs在阿贝折射计上测量，固化红细胞的RIs在浸油中使用贝克线法测量。使用AvaSpec-2048（Avantes BV）光谱仪测定颜色和半透明性。未填充树脂混合物的RIs随着TEGDMA用量的增加而降低。固化红细胞的RIs高于其各自的树脂混合物。与基于FIT和UDMA的RBC相比，基于BisGMA的复合材料更加半透明，L*值显著降低。未填充树脂的RIs与固化红细胞呈正相关（p=0.001），与半透明性（p=0.001）和颜色（p=0.008）的RIs也呈正相关。基于UDMA及其改性低收缩版本FIT的树脂混合物和相应的RBC显示出类似的光学性质。未填充树脂的RIs似乎是固化红细胞RIs的良好预测因子。（c） 2015威利期刊有限公司，《生物医学材料研究》B部分：Appl Biomater，105B:7-132017。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号