Glass ionomer cement (GIC) is a dental restorative material used in dentistry to bond and fill cavities within teeth. It is a type of dental cement that is composed of a powdered glass component and a liquid acid component, usually polyacrylic acid.
When these two components are mixed together, a chemical reaction occurs that results in the formation of a hard, water-resistant material. This material has the ability to chemically bond to both the tooth structure and the underlying dentin, making it an ideal choice for filling cavities.
Glass ionomer cement has many desirable properties that make it advantageous in dental applications. It is tooth-colored, making it aesthetically pleasing when used in visible areas of the mouth. It also releases fluoride over time, which can help prevent tooth decay and protect the natural tooth structure.
Additionally, GIC has a relatively low coefficient of thermal expansion, meaning it expands or contracts less in response to temperature changes compared to other dental materials. This can help reduce the risk of cracking or fracturing of the tooth restoration.
Furthermore, GIC has the ability to mix and set in a relatively short amount of time, allowing for efficient and convenient placement of dental restorations.
Overall, glass ionomer cement is a versatile dental material that is commonly used for filling cavities, especially in situations where esthetics, fluoride release, and bonding capabilities are important considerations.
