Improved devices, systems, and methods for securing a dental prosthesis within an oral cavity of a subject are disclosed. In one embodiment, an implant system comprises an implantable abutment comprising a threaded fixation portion and an abutment portion. At least part of the threaded fixation portion can be configured to be implanted within the alveolar bone or alveolar process of the subject and at least part of the abutment portion can be configured to protrude beyond the gingiva of the subject. The system can also comprise a sleeve comprising a sleeve frame and a plurality of locking tabs configured to lock the sleeve to the abutment portion and lock a dental coping to the abutment portion. The threaded fixation portion can be defined by an exterior tubular profile and wherein the abutment portion can be set within the exterior tubular profile.