PROBLEM TO BE SOLVED: To securely and properly connect a jaw bone of a patient with a fixture and the like.SOLUTION: A cover screw 1 is a cover member attached to a hole, provided in a fixture and serving as a fastening portion with an abutment, in the process of implant treatment. The cover screw 1 includes a column-shaped main body 10 fitted at one end thereof into a hole of the fixture, and an overhang 20 provided on a side surface of the main body 10 in the circumferential direction of the main body. A surface facing one end side of the overhang 20 and a portion 30 connected to and located near the surface facing the one end side of the overhang 20 in the side surfaces of the main body 10 are at least partially mirror-finished.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT
