OpalDam is a passively adhesive (sealing) methacrylate-based resin barrier used for isolating tissue adjacent to teeth being whitened. For single-tooth bleaching, OpalDam may be used to protect adjacent teeth. OpalDam is light reflecting to minimize heat and tissue sensitivity during curing. OpalDam Green ensures a safe, unmistakable barrier every time. Protects soft tissue with impervious seal Removes easily Applies directly​