HESI General Chairside Assisting Practice Exam

Which dental material releases fluoride?

1. Composite resin

2. Dental amalgam

3. Glass ionomers

4. Temporary filling material

The correct answer is: Glass ionomers

Glass ionomers are unique dental materials that are known for their ability to release fluoride over time. This characteristic is particularly beneficial in preventing tooth decay and promoting remineralization of enamel. The fluoride ions that are released can help to inhibit the growth of bacteria in the mouth and strengthen adjacent teeth, making glass ionomers a favorable choice in situations where fluoride release is desired, such as in fillings for cavities or as part of a restorative treatment. Composite resins, while widely used for aesthetic restorations, do not naturally release fluoride and are primarily designed for their strength and cosmetic appearance. Dental amalgams, composed of a mixture of metals, also do not have the capability to release fluoride. Temporary filling materials can provide a short-term solution but typically lack the fluoride-releasing properties that glass ionomers possess. Thus, when it comes to the material known for fluoride release, glass ionomers stand out as the correct answer.