Mount G J
Quintessence Int. 1990 Feb;21(2):93-101.
The Type II restorative esthetic glass-ionomer cement has not been generally regarded as a useful esthetic restorative. However, as long as its relatively slow-setting chemistry is understood and accepted and provision is made to maintain the water balance for the first 24 hours, it can be just as useful as composite resin. Taking into account the fluoride release, its tissue compatibility, and the chemical union with underlying tooth structure that is available, it is suggested that it has a valuable place in restorative routines. Manufacturers have been encouraged recently to try to produce a fast-setting cement that can be polished at the insertion appointment. A varnish to seal newly placed restorations is supplied by most manufacturers, but these are not completely waterproof. A low-viscosity, single-component, light-activated resin bonding agent has been shown to work satisfactorily as a sealant, and, with its use, it is possible to develop adequate translucency and optimal physical properties in the oral cavity.
II 型修复性美观玻璃离子水门汀通常不被视为一种有用的美观修复材料。然而，只要理解并接受其相对较慢的凝固化学性质，并采取措施在前 24 小时维持水分平衡，它就可以与复合树脂一样有用。考虑到其氟释放、组织相容性以及与下方牙齿结构的化学结合，建议它在修复程序中占有重要地位。最近鼓励制造商尝试生产一种可在就位时进行抛光的快速凝固水门汀。大多数制造商提供用于密封新放置修复体的清漆，但这些清漆并非完全防水。一种低粘度、单组分、光固化树脂粘结剂已被证明作为密封剂效果令人满意，并且使用它有可能在口腔中形成足够的透明度和最佳的物理性能。
