Ultradent 1323 Opalescence Endo Mini Refill
Opalescence Endo, Mini Refill: 2 x 1.2 ml Syringes. Endodontic Whitening System. A specially formulated 35% hydrogen peroxide whitening gel to whiten endodontically treated, discolored teeth using the "walking bleach" technique. Once Opalescence Endo is delivered to the pulp chamber, it should be sealed with a temporary cement, and left in the tooth for three to five days.