Specification: Type: Light curing composite resin Shade: A1, A2, A3 Net weight: 2.5g Color: As shown in picture Package includes: 1PC A1/A2/A3 Features: 1. Low polymerization shrinkage 2. High strength and polishability 3. Similar modulus of elasticity to dentin 4. Radiopaque and fluoride releasing 5. Optimal polishability and high shade stability 6. Easy to mold 7. Easy to adhere to bracket for orthodontics 8. Simple and convenient to use 9. Suitable for all types of cavity preparations Usage: 1. Prepare cavities according to standard dental procedures, remove decayed tissue, and clean the cavity. 2. Apply a dental etchant to the tooth surface to be bonded, rinse thoroughly, and dry the bonding surface. 3. Apply a thin, uniform layer of dental adhesive to the bonding surface and cure with a dental curing light for 20 seconds. 4. Fill the cavity with an appropriate amount of composite resin. Cure with a light source of at least 400mW/cm for 20 seconds. Curing depth is 1.5mm. For deeper fillings, extend curing time or use incremental layering technique. 5. Perform shaping and polishing. Check occlusion with articulating paper before final adjustments. Use rubber polishing wheels and fine polishing strips for best results. 6. When pulp protection is required, use calcium hydroxide (light-cured or self-cured) or other non-eugenol lining materials. Avoid using eugenol-containing materials directly as a base.