Investigating Bioactive-Glass-Infused Gels for Enamel Remineralization: An In Vitro Study

Area of Science:

• Biomaterials Science
• Dental Materials
• Nanotechnology

Background:

• Dental hypersensitivity is a prevalent condition.
• Effective tubule sealing materials are crucial for managing hypersensitivity.
• Hydroxyethyl cellulose (HEC) gels offer a potential matrix for bioactive agents.

Purpose of the Study:

• To evaluate bioactive-glass-infused HEC gels for dental tubule sealing.
• To assess the physical and chemical properties of these novel gels.
• To determine their ion-releasing capabilities for remineralization.

Main Methods:

• Synthesis of five HEC gels with 20% bioactive glass (45S5, S53P4, Biomin F, Biomin C) and one control.
• Accelerated aging of gels for two months at 37°C.
• Assessment of viscosity, water disintegration, pH, consistency, adhesion, and element release.

Main Results:

• All bioactive glass gels released calcium, phosphate, and silicon ions, increasing pH to a remineralization-friendly range (9.7).
• Gels demonstrated dissolution in water within 30-50 minutes and varied viscosity and adhesion properties.
• Significant ion release was quantified, including Ca, Na, P, Si, F, and Cl, indicating potential for enamel repair.

Conclusions:

• Bioactive-glass-infused HEC gels can initiate remineralization by delivering key ions for enamel reconstruction.
• The gels exhibit properties suitable for dental applications, including ion release and pH modulation.
• Further in-situ studies are recommended to validate their efficacy in dynamic, clinical environments.