Glass Ionomer Cements are dental materials used for filling cavities and as a base or liner under restorations. They are made from a mixture of glass powder and organic acids, which allows them to bond chemically to both tooth structure and metal. This unique property makes them suitable for various dental applications, especially in areas where aesthetics and durability are important. One of the key benefits of Glass Ionomer Cements is their ability to release fluoride, which can help prevent further decay. They are also biocompatible, meaning they are safe to use in the mouth. However, they may not be as strong as other materials, such as composite resins or amalgam, making them more suitable for specific situations.