´╗┐The key to the V3 Sectional Matrix System is the Ni-Ti V3 Ring, which exerts optimal force to produce ideal tooth separation for consistently tight contacts. The ring's V-shaped tines accommodate the wedge and provide a stable, anatomical grip on the matrix. The Triodent system is completed with 2 cutting-edge components: the V3 Tab-Matrix and the Wave-Wedge. For more information, call (800) 811-3949 or visit