Dental implant
View Patent ↗The present invention relates to a connection between a post part provided for being screwed into the jawbone and an associated superstructure part to which a dental prosthesis can be fastened. The connection between the post part and the superstructure part has a rotational self-centering action, wherein at least one of the surfaces provided for this purpose has a friction-minimizing modification and/or coating.
1. A dental implant, comprising:
a first implant part provided for being inserted into a jawbone and a second implant part associated therewith, provided for fixing a dental prosthesis;
a contact pin formed onto one of the first and second implant parts, wherein the first and second implant parts are mechanically connectable to each other via the contact pin; and
a receiving channel provided in the other implant part and adapted to receive the contact pin,
wherein the contact pin and, adapted thereto, the receiving channel associated with the contact pin, each include in a first indexing area, a plurality of contact surfaces inclined against a longitudinal axis of the first implant part, at least one of the contact surfaces of the first indexing area on at least one of the first and second implant parts being provided with a friction-reducing coating,
wherein the first implant part provided for being inserted into the jawbone includes a second indexing area with a number of walls, and
wherein the first indexing area and the second indexing area are designed for the same number of positioning possibilities.
2. The dental implant of claim 1 , wherein, in the first indexing area, all contact surfaces of the first and second implant parts are provided with a friction-reducing coating.
3. The dental implant of claim 1 , whose first and second implant parts can mechanically be connected to each other via a connection screw, wherein a screw seat for the connection screw in the first and second implant parts is provided with a friction-reducing coating.
4. The dental implant of claim 1 , wherein the second indexing area includes functional surfaces which are conical in relation to the longitudinal axis of the contact pin.
5. The dental implant of claim 1 , wherein the second indexing area includes functional surfaces which are oriented substantially parallel to the longitudinal axis of the first implant part.
6. The dental implant of claim 1 , wherein the second indexing area comprises a rotational locking mechanism.
7. The dental implant of claim 1 , wherein the second indexing area comprises at least one planar surface.
8. The dental implant of claim 1 , wherein at least one of the contact surfaces of the first indexing area on at least one of the first and second implant parts comprises a planar surface.
9. The dental implant of claim 1 , wherein the first indexing area is configured for six positioning possibilities.
10. The dental implant of claim 1 , wherein the second indexing area is configured to engage a tool.
11. The dental implant of claim 1 , wherein the second indexing area includes six functional surfaces which are oriented substantially parallel to the longitudinal axis of the first implant part.