Adult Oral Health, Institute of Dentistry, Queen Mary University of London, London E1 2AD, UK.
Dental Physical Sciences, Institute of Dentistry, Queen Mary University of London, London E1 2AD, UK.
J Funct Biomater. 2016 Jun 28;7(3):16. doi: 10.3390/jfb7030016.
This article is an updated review of the published literature on glass-ionomer cements and covers their structure, properties and clinical uses within dentistry, with an emphasis on findings from the last five years or so. Glass-ionomers are shown to set by an acid-base reaction within 2-3 min and to form hard, reasonably strong materials with acceptable appearance. They release fluoride and are bioactive, so that they gradually develop a strong, durable interfacial ion-exchange layer at the interface with the tooth, which is responsible for their adhesion. Modified forms of glass-ionomers, namely resin-modified glass-ionomers and glass carbomer, are also described and their properties and applications covered. Physical properties of the resin-modified glass-ionomers are shown to be good, and comparable with those of conventional glass-ionomers, but biocompatibility is somewhat compromised by the presence of the resin component, 2 hydroxyethyl methacrylate. Properties of glass carbomer appear to be slightly inferior to those of the best modern conventional glass-ionomers, and there is not yet sufficient information to determine how their bioactivity compares, although they have been formulated to enhance this particular feature.
这是一篇关于玻璃离子水门汀的已发表文献的更新综述，涵盖了其在牙科领域的结构、性能和临床应用，重点介绍了过去五年左右的研究结果。玻璃离子水门汀在 2-3 分钟内通过酸碱反应凝固，并形成具有良好外观的坚硬、强度适中的材料。它们释放氟化物并具有生物活性，因此它们会在与牙齿的界面处逐渐形成一层坚固、持久的离子交换层，这是它们粘结的原因。本文还介绍了改良型玻璃离子水门汀，即树脂改性玻璃离子水门汀和玻璃碳，介绍了它们的性能和应用。研究表明，树脂改性玻璃离子水门汀的物理性能良好，与传统玻璃离子水门汀相当，但由于树脂成分 2-羟乙基甲基丙烯酸酯的存在，其生物相容性受到一定程度的损害。玻璃碳的性能似乎略逊于最好的现代传统玻璃离子水门汀，而且目前还没有足够的信息来确定它们的生物活性如何比较，尽管它们的配方旨在增强这一特定特性。
