Ferracane Jack L
Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, Oregon Health & Science University, 611 S.W. Campus Drive, Portland, OR, USA.
Dent Mater. 2006 Mar;22(3):211-22. doi: 10.1016/j.dental.2005.05.005. Epub 2005 Aug 8.
The objective of this manuscript is to outline the factors associated with hygroscopic and hydrolytic effects in dental polymer networks, and to review the literature generated over the past thirty years or more in this area.
Information was gathered from nearly 90 published articles or abstracts appearing in the dental and polymer literature. Studies were predominantly identified through a search of the PubMED database.
Studies were included that provided direct evidence for the uptake of solvent by a polymer network and its subsequent physical or chemical effect, or the loss of molecular species into solvents. An attempt was made to select articles that spanned the timeframe from approximately 1970 to today to ensure that most of the classic literature as well as the latest information was included.
Dental polymer networks have been shown to be susceptible to hygroscopic and hydrolytic effects to varying extents dependent upon their chemistry and structure. The importance of these effects on the clinical performance of polymer restoratives is largely unknown, though numerous investigators have alluded to the potential for reduced service lives.
While the physical and mechanical properties of these materials may be significantly altered by the effects of solvent uptake and component elution, what may constitute the greatest concern is the short-term release of unreacted components and the long-term elution of degradation products in the oral cavity, both of which should be strongly considered during restorative material development.
本论文的目的是概述与牙科聚合物网络中的吸湿和水解作用相关的因素,并回顾在该领域过去三十年或更长时间内产生的文献。
从牙科和聚合物文献中发表的近90篇文章或摘要中收集信息。主要通过搜索PubMed数据库来识别研究。
纳入的研究提供了聚合物网络吸收溶剂及其随后的物理或化学效应,或分子物种向溶剂中损失的直接证据。试图选择涵盖从大约1970年到现在的时间范围的文章,以确保纳入大部分经典文献以及最新信息。
牙科聚合物网络已被证明在不同程度上易受吸湿和水解作用的影响,这取决于它们的化学性质和结构。这些作用对聚合物修复体临床性能的重要性在很大程度上尚不清楚,尽管许多研究人员已暗示其可能会缩短使用寿命。
虽然这些材料的物理和机械性能可能会因溶剂吸收和成分洗脱的影响而发生显著改变,但最令人担忧的可能是未反应成分的短期释放以及降解产物在口腔中的长期洗脱,在修复材料开发过程中都应充分考虑这两个因素。