50pcs/box Dental Pre-Formed Retainer Blue Transparent Posterior Matrix Bands M12 O Type for Class-Ⅱ Restorations Molar Ring

It is suitable for filling and repairing second-class cavities of posterior teeth, especially for distal free teeth and post-core repair.Curved to an angle, suitable for tooth shape, tighten toward gingival, fit tightly without overhang; Convenient and fast operation,firm tightening and no slipping; The ultra-thin polished matrix bands, fitting tooth body better.Sophisticated design makes placement easier and improves visibility.Instructions：The Thickness is 0.075mm Packing：50 pieces/ unit