Novel Nano-Sized Glass Ionomer Cement Formulation with Enhanced Bioactivity Properties
by Nozimjon Tuygunov
MDSc, MSc (Restor. dent.)
Abstract
Conventional Glass Ionomer Cement (GIC) used in dentistry has a weak bond with teeth. Enhancing its bioactive properties by increasing ion release can improve this bond, but the pH-lowering effect of polyacrylic acid in conventional GIC hinders this enhancement.
This study developed GIC modified with Tetracalcium Phosphate (TTCP) and Hydroxyapatite (HAP) for better bioactivity. The GIC was fabricated using melt-quenching and ball milling to create nano-sized particles. Its properties were tested and compared with a commercial product.
The modified GIC showed an amorphous structure and distinct chemical composition. TTCP extended the initial setting time and enhanced calcium and phosphate ion release but slightly reduced compressive strength. HAP maintained compressive strength and improved bioactivity.
This new GIC formulation shows potential for dental applications but requires further research to understand its clinical implications and long-term efficacy.