An enossal single tooth implant for a fixed dental prosthesis includes an essentially cylindrical base body which can be inserted into a boring in a jaw bone, an abutment which can be inserted in the annular recess of the base body and has a boring for receiving a retaining screw and with a securing head for the dental prosthesis and a retaining screw which can be inserted into the blind hole of the base body and traverses the abutment.