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Fluoride release from a glass ionomer cement.
Scandinavian Journal of Dental Research
|September 1, 1977
Summary
Glass ionomer cement and silicate cement both released fluoride over 7 weeks. Glass ionomer cement showed slightly higher fluoride release compared to silicate cement, with most release occurring in the initial two weeks.
Area of Science:
- Dental Materials Science
- Biomaterials
- Fluoride Chemistry
Background:
- Fluoride release from dental cements is crucial for caries prevention.
- Glass ionomer cements (GIC) and silicate cements are used in restorative dentistry.
- Understanding ion release kinetics informs material selection and clinical application.
Purpose of the Study:
- To compare the fluoride release profiles of a glass ionomer cement (ASPA) and a silicate cement.
- To quantify fluoride uptake by hydroxyapatite over a 7-week period.
- To analyze the long-term fluoride release characteristics of these dental materials.
Main Methods:
- Specimens of glass ionomer cement (ASPA) and silicate cement were prepared.
- Test specimens were immersed in a hydroxyapatite solution for 7 weeks.
- The surrounding solution was replaced weekly, and fluoride uptake by hydroxyapatite was measured.
Main Results:
- Both cements exhibited a higher rate of fluoride release during the first two weeks.
- Fluoride release rates decreased but remained consistent over the subsequent five weeks.
- The glass ionomer cement (ASPA) demonstrated a slightly greater overall fluoride release than the silicate cement.
Conclusions:
- Glass ionomer cement (ASPA) and silicate cement provide a sustained release of fluoride.
- The initial burst release followed by a prolonged, steady release is characteristic of these materials.
- Glass ionomer cement (ASPA) may offer a slightly enhanced cariostatic effect due to its higher fluoride release.