Glass ionomer cements are a widely used dental material. Which one of the following options states the main advantage of this material over composites?

Glass ionomer cements are distinguished in dental materials primarily due to their ability to release fluoride, which contributes to the therapeutic benefits for both the tooth structure and surrounding tissues. This release of fluoride helps to prevent caries and can even promote the remineralization of early carious lesions.

The fluoride release from glass ionomer cements promotes both short-term and long-term oral health, making it particularly advantageous in settings like pediatric dentistry or for patients at higher risk for cavities. Other materials, such as composite resins, do not typically offer the same level of fluoride release, focusing instead on their aesthetic qualities and strength.

In addition, glass ionomer cements also bond chemically to both enamel and dentin, which can enhance their performance in certain clinical situations. While considerations of polishability, adherence to enamel, and strength are important in the choice of dental materials, the unique fluoride-releasing property stands out as a key advantage of glass ionomer cements over composite materials.