Mount Graham J, Tyas Martin J, Ferracane Jack L, Nicholson John W, Berg Joel H, Simonsen Richard J, Ngo Hien C
The University of Adelaide, Adelaide, South Australia, Australia.
Quintessence Int. 2009 Sep;40(8):691-7.
Composite resins and glass-ionomer cements were introduced to dentistry in the 1960s and 1970s, respectively. Since then, there has been a series of modifications to both materials as well as the development other groups claiming intermediate characteristics between the two. The result is a confusion of materials leading to selection problems. While both materials are tooth-colored, there is a considerable difference in their properties, and it is important that each is used in the appropriate situation. Composite resin materials are esthetic and now show acceptable physical strength and wear resistance. However, they are hydrophobic, and therefore more difficult to handle in the oral environment, and cannot support ion migration. Also, the problems of gaining long-term adhesion to dentin have yet to be overcome. On the other hand, glass ionomers are water-based and therefore have the potential for ion migration, both inward and outward from the restoration, leading to a number of advantages. However, they lack the physical properties required for use in load-bearing areas. A logical classification designed to differentiate the materials was first published by McLean et al in 1994, but in the last 15 years, both types of material have undergone further research and modification. This paper is designed to bring the classification up to date so that the operator can make a suitable, evidence-based, choice when selecting a material for any given situation.
复合树脂和玻璃离子水门汀分别于20世纪60年代和70年代被引入牙科领域。从那时起，这两种材料都经历了一系列的改进，同时也出现了其他一些声称具有介于两者之间的中间特性的材料。结果导致材料种类繁多，给选择带来了困难。虽然这两种材料都是牙齿颜色的，但它们的性能有很大差异，在适当的情况下使用每种材料都很重要。复合树脂材料美观，现在显示出可接受的物理强度和耐磨性。然而，它们是疏水性的，因此在口腔环境中更难操作，并且不能支持离子迁移。此外，获得与牙本质的长期附着力的问题尚未得到解决。另一方面，玻璃离子水门汀是以水为基质的，因此具有离子迁移的潜力，无论是从修复体向内还是向外，这带来了许多优点。然而，它们缺乏用于承受负荷区域所需的物理性能。1994年，麦克林等人首次发表了一种旨在区分这些材料的合理分类方法，但在过去的15年里，这两种材料都经历了进一步的研究和改进。本文旨在更新这种分类方法，以便临床医生在为任何特定情况选择材料时能够做出合适的、基于证据的选择。
