Abstract: Dental implant assembly comprising an implant with a body having an outer implant surface configured for osseointegration and a connection well, and an abutment comprising a prosthesis mounting portion for assembly of a dental prosthesis thereon and a connector mounting cavity. The assembly further comprises a connector comprising an implant mounting portion for assembly in the connection well of the implant, and an abutment mounting portion for assembly in the connector mounting cavity of the abutment, the abutment mounting portion of the connector comprising an index portion and the abutment connector mounting cavity further comprising an index cavity portion for receiving the index portion therein, the index portions configured to register the rotational orientation of the abutment about a longitudinal axis (A) with respect to the connector.