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 procedures, remove decayed tissue, and clean the cavity. 2. Apply a dental etchant to the tooth surface to be bonded, rinse thoroughly, and air dry. 3. Apply a thin, uniform layer of dental adhesive to the bonding surface and cure with a dental light-curing unit for 20 seconds. 4. After filling and shaping with an appropriate amount of composite resin, cure using a light source with intensity not less than 400mW/cm² for 20 seconds. Curing depth is 1.5mm. For deeper fillings, extend curing time or use incremental layering technique. 5. Perform finishing and polishing. Check occlusion with articulating paper before final adjustment. Use rubber polishing points 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 containing liners. Avoid direct use of eugenol-containing materials as a base.