What type of dental materials are glass ionomer and dental amalgam classified as?

Glass ionomer and dental amalgam are classified as permanent fillings due to their durability, strength, and the ability to provide long-lasting restorations for cavities and other dental defects.

Glass ionomer is particularly notable for its chemical bond to both enamel and dentin, as well as its ability to release fluoride, which can aid in preventing further decay. This makes it a popular choice for filling cavities in areas that are less stressed, such as the roots of teeth or in areas where aesthetics are less of a concern.

On the other hand, dental amalgam is a mixture of metals, including silver, mercury, tin, and copper, and is known for its strength and longevity. It is especially effective in posterior teeth that endure significant biting forces, making it a reliable choice for fillings that must withstand the rigors of chewing.

Together, both materials provide effective solutions for permanent restorations in dentistry, contributing to restored function and the overall health of the dental arch.