Final answer:
Resin modified glass ionomer is a dental material used for fillings, which incorporates a light-cured resin component to improve strength and aesthetics.
Step-by-step explanation:
Resin modified glass ionomer is a type of dental material used for filling cavities. This material represents a hybrid between a conventional glass ionomer and a composite resin. Glass ionomer cements themselves are made of a silicate glass powder and an aqueous solution of polyacrylic acid. The 'resin modified' part of this material refers to the addition of a light-cured resin component, which enhances the material's properties by improving its physical and aesthetic qualities. The resin increases the material's strength and wear resistance and also allows it to be light-cured, which can result in a faster setting time compared to traditional glass ionomer cements. Resin modified glass ionomers are commonly used in dentistry for various applications such as fillings, especially in areas subjected to low stress, liners, and as a sealant material.