What is the function of Glass ionomer Type 3 in dental procedures?

Glass ionomer Type 3 is primarily used as a base or liner in dental procedures. This material has a unique ability to bond chemically to both enamel and dentin, providing an effective barrier that protects the pulp of the tooth from thermal fluctuations, chemical exposure, and mechanical irritation. Its formulation allows it to release fluoride, which can help in the prevention of further decay, making it ideal for use in areas where additional support is needed beneath other restorative materials.

Using Glass ionomer Type 3 as a base or liner is particularly beneficial in situations where there is a need for additional protection and support for the tooth structure, especially in deep cavity preparations. Its properties help in maintaining the overall health of the tooth and can contribute positively to the longevity of the restoration placed over it.

While Glass ionomer can indeed serve various functions in other contexts such as cementing crowns or sealing fissures, those specific uses are more characteristic of different formulations or types of glass ionomer.