Top Dam is a light cured resin, which replaces the rubber dam (complete isolation) in some cases, where the gingival relative isolation is sufficient. The product is sufficiently viscous and thixotropic to allow easy application and control over the place to be protected, without runnings. High adhesion isolation. Minimum and perfect adhesion on the gingiva. Easily detached and removed. No gingival tissue irritation. Variety of colors, which allows contrast of rubber sheet when used as an auxiliary of absolute isolation.