A dental implant system is hermetically sealed and uses a radially extruded extension retentive design. The implant system provides additional retention and resistance to rotational and lateral forces and disperses these forces vertically and apically through the implant body. The implant system also provides protection from issues of sepsis at the junction between the abutment and the implant body, when can result in significant bone loss in conventional designs. The implant system integrates/unifies the components to result in a closer approximation to a natural tooth root to improve resistance to lateral and rotational forces that challenge the integrity of conventional implants. The implant system provides a shorter average length in proportion to its retentive surface area, thereby effectively reducing the needed length to avoid invading nearby anatomic structures, such as the maxillary sinus, mental foramen and/or mandibular canal.