Abstract: Given a single tooth implant with a base member and an abutment for a crown, whereby the base member, in sequence from the coronal to the cervical end, comprises a positive lock region with positive lock elements for joining to the abutment and a centering region and the abutment, complementary thereto, comprises a positive lock section and a centering section, the positive lock elements of the positive lock region are arranged offset from the face wall of the base member. The centering region can directly adjoin the positive lock region. According to an advantageous embodiment, a seal ring can be provided between the abutment and the base member.

Abstract: Endosteal individual tooth implant for a snug tooth replacement, having an ssentially cylindrical basic element that can be placed in a bore made in a jaw bone, which basic element has a blind bore open at its coronal end, and with a spacer sleeve that can be placed on the coronal frontal edge of the basic element so as to be secured against rotation, which sleeve has a cervical centering collar that can be placed into a hollow cylindrical annular opening provided at the coronal end of the basic element, and a shoulder that is attached to the centering collar in the coronal direction and that can be placed onto the coronal frontal edge of the basic element. The sleeve has a bore, open at its coronal end, for receiving an implant post that can be placed directly or indirectly into the blind bore of the basic element and that penetrates at least partially the spacer sleeve, and is provided with a fastening head for the tooth replacement, replacement.

Abstract: Enossal tooth implant for firmly seating dental prostheses has an essentiy cylindrical base member, which is introducible into a bore introduced in a jaw bone and has a blind bore open toward its coronal end, a spacer sleeve which has an inside bore, is emplaceable on a coronal face edge of the base member and has an arrangement for a twist-resistant fastening to the base member, and has a fastening head for a dental prosthesis and an implant post which is introducible through the inside bore into the blind bore and connectable to the base member.

Abstract: The invention relates to a member provided with an external screw thread, which at least in the end portion of the screw thread is provided with at least one plastic part for at least partially covering the same and/or at least partially replacing the same.

Abstract: An implantable fixing device for extraoral applications includes a basic structure implantable in the bone and having either a thread-pressing or a thread-cutting helix, and an implant post being connectible to the basic structure by being inserted in an axial bore therein.

Abstract: An enossal implant with an implantable basic structure and an implant post onnected thereto characterized by the basic structure having an axial bore receiving a rigid inner sleeve which has an axial bore receiving the implant post.