BRIEF DESCRIPTION OF THE DRAWINGS [0016]FIG. 1 is a side view drawing of an artificial disc replacement (ADR) according to this invention, including a cushioning component disposed between endplate components; [0017]FIG. 2 is a cross section of the device of FIG. 1; [0018]FIG. 3 is a cross section of an alternative embodiment of an ADR according to the invention; [0019]FIG. 4A is a lateral view of