A dental prosthesis that is partially submerged and anchored within the bone. The blade form and the cylinder form are the two types of endosteal implants used. The cylinder form, which is most common, consists of a screw, a small titanium cylinder, and an abutment surgically inserted into the bone. The blade form consists of one or more abutments. In both forms, the prosthetic device is placed on the abutment.