Bioclear is pleased to introduce the Black Triangle System, a new matrix system that enables black triangle closure much faster than with the original Bioclear matrices. Black Triangle matrices are custom designed for black triangle treatment and require no trimming prior to seating. A color-coded gauge and matrices make choosing the correct curvature for gingival embrasure closure simple and predictable. Curvature is indicated by colors at the top of the matrix and correspond with a gauge that, when inserted into the black triangle, indicates which curvature to use. The matrices come in two sizes (large incisor and small incisor) and four curvatures allowing you to treat the entire anterior sextant, canine to canine and both upper and lower arches with strong aesthetically pleasing results.