Like a third hand, E-Prop maintains an open field while holding a standard saliva ejector in perfect position. Used without a saliva ejector, the unique C-shape improves side access and visibility. Invented by a hygienist, E-Prop is ideal for lengthy procedures such as scaling and root planing. Rigid polypropylene construction with soft elastomer pads for comfortable, secure bite-in. Fully autoclavable. Soft-Prop Edentulous Mouth Prop  specially designed for edentulous patients.