An instrument for removing fractured root canal instruments, comprising an instrument housing formed hollow at least at its front end portion, a slide which is non-rotatably held on the instrument housing but guided for translational movement in an axial direction, a threaded rod which is fixed to the slide and is engaged with a counter thread of the instrument housing or a counter member held on the instrument housing, so that a relative rotational movement between the threaded rod on the one hand and the instrument housing and/or the counter member on the other hand results in an axial displacement of the slide, and fastening means for fastening a wire to the slide, wherein the hollow instrument housing is open towards its front side, so that a wire can be guided through the open front side into the instrument housing and therein to the fastening means.