An interdental brush (1) with a handle (2) and a brush head (3), wherein the brush head (3) includes a wire element (4), which extends from the handle (2) to a free end (5) and to which bristles (7) are attached, which decrease in length towards the free end (5) of the wire element (4) in at least one section, and wherein a bristle-free section (8) is formed at the free end (5) of the wire element (4).