Fluoride release from light-cure liners/bases: an eight-month report.

Area of Science:

• Dental Materials Science
• Biomaterials Engineering
• Polymer Chemistry

Background:

• Visible light-cure cavity liners and bases are essential in restorative dentistry.
• Fluoride-releasing materials can offer anticariogenic benefits.
• Understanding long-term fluoride release is crucial for material selection.

Purpose of the Study:

• To quantify and compare the fluoride release profiles of five new visible light-cure cavity liners/bases over an 8-month period.
• To identify materials that maintain significant fluoride release over time.

Main Methods:

• Five visible light-cure cavity liners/bases containing fluoride were selected.
• Fluoride ion concentration in immersion solutions was measured over 8 months.
• Statistical analysis was performed to compare fluoride release between materials.

Main Results:

• All evaluated materials demonstrated fluoride release, which decreased significantly over the 8-month period.
• A significant difference in the amount of fluoride released was observed among the materials.
• At the 8-month mark, only XR Ionomer and Vitrabond exhibited detectable fluoride release.

Conclusions:

• XR Ionomer demonstrated the highest and most sustained fluoride release among the tested materials at 8 months.
• Vitrabond also showed detectable fluoride release at 8 months.
• Material selection should consider the long-term fluoride release characteristics for optimal clinical benefit.