From the Research
To apply glycerin gel over composite resin, apply a thin layer of glycerin gel over the composite surface immediately after placing and shaping the restoration, but before light curing, as this creates an oxygen barrier that prevents the formation of an oxygen-inhibited layer on the composite's surface, resulting in better wear resistance and polish retention of the restoration, as supported by the most recent study 1.
Specific Steps:
- Place and shape the composite as usual
- Apply a thin layer of glycerin gel over the entire composite surface
- Light cure the composite through the glycerin layer
- Rinse off the glycerin gel with water after curing is complete Using glycerin gel helps achieve a harder, smoother composite surface by preventing oxygen from interfering with the polymerization process at the outermost layer.
Key Considerations:
- For best results, use a high-quality, dental-specific glycerin gel and follow the manufacturer's instructions for your particular composite material.
- Apply the gel carefully to avoid incorporating air bubbles, which could compromise the oxygen barrier effect. The study by 1 found that polishing with polishing disks or coating with glycerin gel during polymerization would be a useful protocol to achieve and maintain esthetically stable composite restorations, highlighting the importance of proper technique in achieving optimal outcomes.
Additional Tips:
- The use of glycerin gel can also help prevent composite from sticking to instruments during final shaping and contouring, making the restoration process more efficient.
- It is essential to choose a glycerin gel that is compatible with your specific composite material to ensure optimal results.