Final answer:
Glass ionomers are popular as luting agents due to their ability to bond to tooth structures, fluoride release, biocompatibility, thermal expansion similarity with teeth, and ease of use.
Step-by-step explanation:
Glass ionomers are gaining popularity as luting agents in the field of dentistry. These ionomers consist of a glass powder that is mixed with an acidic, water-soluble polymer. Glass ionomers have several advantages that contribute to their increasing use. They have the ability to bond to both enamel and dentin, release fluoride which can help in preventing further decay, and have a coefficient of thermal expansion similar to that of tooth structure. Additionally, they are biocompatible with tooth tissues and are relatively easy to handle and apply.