Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei 100, Taiwan, R.O.C., and Department of Dentistry, National Taiwan University Hospital.
J Dent Res. 2010 Jun;89(6):549-60. doi: 10.1177/0022034510363765. Epub 2010 Mar 18.
Dental resin-composites are comprised of a photo-polymerizable organic resin matrix and mixed with silane-treated reinforcing inorganic fillers. In the development of the composites, the three main components can be modified: the inorganic fillers, the organic resin matrix, and the silane coupling agents. The aim of this article is to review recent studies of the development of dental nanocomposites and their clinical applications. In nanocomposites, nanofillers are added and distributed in a dispersed form or as clusters. For increasing the mineral content of the tooth, calcium and phosphate ion-releasing composites and fluoride-releasing nanocomposites were developed by the addition of DCPA-whiskers or TTCP-whiskers or by the use of calcium fluoride or kaolinite. For enhancing mechanical properties, nanocomposites reinforced with nanofibers or nanoparticles were investigated. For reducing polymerization shrinkage, investigators modified the resin matrix by using methacrylate and epoxy functionalized nanocomposites based on silsesquioxane cores or epoxy-resin-based nanocomposites. The effects of silanization were also studied. Clinical consideration of light-curing modes and mechanical properties of nanocomposites, especially strength durability after immersion, was also addressed.
牙科树脂复合材料由光聚合有机树脂基质组成，并与硅烷处理的增强无机填料混合。在复合材料的开发中，可以对三种主要成分进行改性：无机填料、有机树脂基质和硅烷偶联剂。本文旨在综述牙科纳米复合材料的最新研究及其临床应用。在纳米复合材料中，纳米填料以分散形式或团聚体形式添加和分布。为了增加牙齿的矿物质含量，通过添加 DCPA-晶须或 TTCP-晶须或使用氟化钙或高岭土，开发了释放钙和磷酸盐离子的复合材料和释放氟化物的纳米复合材料。为了提高机械性能，研究了用纳米纤维或纳米粒子增强的纳米复合材料。为了减少聚合收缩，研究人员通过使用基于甲硅烷基的甲基丙烯酸酯和环氧树脂官能化纳米复合材料（基于硅倍半氧烷核）或基于环氧树脂的纳米复合材料来改性树脂基质。还研究了硅烷化的影响。临床还考虑了光固化模式和纳米复合材料的机械性能，特别是浸泡后的强度耐久性。
