The endosseous single-tooth implant has a cylindrical base body (10) that is inserted in a hole. The base body has a recess (16) and a blind hole (12). The blind hole has a threaded section (14) for establishing a holding screw. An abutment is inserted in the recess of the base body, where the abutment has hole for receiving the holding screw, and has a fixing head for dentures. The holding screw is inserted in the blind hole of the base body. The recess of the base body is formed as hollow truncated cone with a circular surface. The abutment has a truncated cone.