The most recent advancement in silver amalgam is use of resin formulations to bond metal to tooth both chemically &/or physically, Since, historically, amalgam has been used successfully without adhesion to tooth, obvious clinical question is: Why is bonding now desirable? Two major clinical reasons to bond are: (1) Adhesive can increase fracture resistance of amalgam restored teeth & decrease cusp fractures; & (2) Seal provided by adhesive can greatly decrease, & often eliminate post-operative sensitivity. Following report summarizes CRA laboratory study of shear bond strength & sealing capability of 23 commercial adhesives used to bond 2 types of silver amalgam to tooth structure.
银汞合金的最新进展是使用树脂配方，通过化学和/或物理方式将金属与牙齿粘结。从历史上看，银汞合金在未粘结到牙齿的情况下也成功使用过，因此，一个明显的临床问题是：为什么现在需要粘结？粘结的两个主要临床原因是：（1）粘结剂可以提高银汞合金修复牙齿的抗折性并减少牙尖折断；（2）粘结剂提供的密封可以大大降低，并且常常消除术后敏感性。以下报告总结了CRA实验室对23种用于将两种类型的银汞合金粘结到牙齿结构上的商用粘结剂的剪切粘结强度和密封能力的研究。
