An Isosit dental material, which is highly cross-linked, is used to manufacture SR Orthosit PE posterior teeth. The long-lasting benefits of the equipment are attributed to its strong wear resistance. The Orthotyp principle accounts for excellent occlusion. The usage of this equipment is consistent with total denture prosthetics. It is used in combination with SR Vivodent PE. With each having 5 N, 2 K and 2 T molds, the teeth are delivered in 20 shades of SR Vivodent PE.