Profile: Matrix-Dental is a supplier of V-ring sectional matrix systems. The V-ring is the first retainer ring for sectional matrix systems to be made from nickel-titanium. Its elasticity offers the user an opportunity to insert the wedge either before or after fitting the ring. In addition, it is also the only retainer ring that does not obstruct the wedge. V-ring holds the sectional matrix in the position required to adopt a natural anatomical shape. This also prevents the matrix from springing back and leaving a gap. The patent-pending unique V-shaped tines prevent the ring collapsing into wide cavities.