3d printer material. The special resin optiprint gingiva is developed for the production of flexible gum masks with 3D printing technology. The color of optiprint gingiva, which is very similar to natural gums, makes it easier for the dental technician, in conjunction with the gingiva-like flexibility of the material, to produce esthetic restorations. optiprint gingiva is the perfect complement to the special model resin optiprint model.