Syntac Enamel/Dentin Bonding System - Primer Refill, 3 mL Bottle. #532893 Enhances chemical bonding of composites and tooth surface. Clinically proven safe and effective. Results in low postoperative sensitivity. Ensures instant drying. Syntac is an adhesive system that generates a substantial chemical attachment of composites to the tooth surface. Clinical studies prove that Syntac is safe and effective for dental restorations and repairs with minimum postoperative sensitivity in patients over the years.Each kit contains 1 (3 g) Syntac Primer, 1 (3 g) Syntac Adhesive, 1 (6 g) Heliobond, and various accessories.