An element for aiding in the cementation of a fixed dental prosthesis that results in equal pressure being applied to the prosthesis comprising a block having a first end (M) and a second end (d). The first end (M) is thicker than the second end (d), and when the first end is mesially placed and the second end is distally placed between two dental arcades, equal pressure is applied to the prosthesis. The block may be frustropyramidal, frustroconical, or helical in shape.