Sectional Matrix System - Ring Refill, UNIVERSAL 2/Pk. Nickel-titanium ring composition for spring strength and memory retention. Palodent Plus Style Sectional Matrix System, typically refers to the replacement rings utilized in sectional matrix systems within dentistry. These rings play a vital role in achieving precise contacts and natural contours when applying composite restorations.Crafted from sturdy materials like stainless steel or titanium, they offer durability and resistance to bending. Designed for convenient placement and removal during dental procedures, streamlining the process for dental professionals. Normally available in packs containing multiple rings, presenting cost-effective and practical solutions for replenishing sectional matrix systems.Many ring refills are autoclavable, allowing for safe sterilization and multiple uses, thus ensuring hygiene and sustainability.