OpalDam light-cured resin barrier is a passively adhesive (sealing) methacrylate-based resin barrier used for isolating tissue adjacent to teeth being whitened. For single-tooth whitening, it may be used to protect adjacent teeth. OpalDam resin barrier is light reflecting to minimize heat and tissue sensitivity during curing. OpalDam Green resin barrier ensures a safe, unmistakable barrier every time. 🟢 Protects soft tissue with impervious seal 🟢 Removes easily 🟢 Applies directly 🟢 Use with Black Mini tips and Micro 20 ga tips 🟢 Certified gluten free