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The Composi-Tight 3D XR Sectional Matrix System features an ultraretentive matrix ring designed for use with short or malpositioned teeth, and it works well with standard-height teeth also. The ring is the newest addition to the Composi-Tight 3D Sectional Ma-trix System, designed to create tight, anatomical contacts on Class II composite restorations. For more information, call (888) 437-0032.
