Device for coupling an artificial tooth to a jawbone of a patient, the device including a dental implant, and a deformably removable nut, the dental implant including a threaded bone engaging portion, for engaging the dental implant with the jawbone, and a threaded assembly stage portion, for enabling screwing of the dental implant into the jawbone, and for coupling the artificial tooth with the jawbone, the deformably removable nut including a plurality of engagement features, and a nut disintegration feature, the engagement features enabling engagement of the nut with a tool, for screwing the nut on the dental implant, and for further screwing the dental implant in the jawbone, with the aid of the nut, the nut disintegration feature enabling removal of the nut from the dental implant, without unscrewing the nut from the threaded assembly stage portion.