Dental implant

{
  "publication_number": "US11166793B2",
  "country": "US",
  "kind": "B2",
  "title": "Dental implant",
  "abstract": "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.",
  "claims": [
    "1. A dental implant, comprising: a first implant part provided for being inserted into a jawbone and a second implant part associated therewith; a contact pin formed onto one of the first implant part and the second implant part, wherein the first implant part and the second implant part 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 such that a distal end of the contact pin extends past an upper edge of the receiving channel by a predetermined distance, wherein the contact pin and, adapted thereto, within 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, the first indexing area extends along a first portion of the longitudinal axis, and the first portion overlaps an external thread of the dental implant part along the longitudinal axis, wherein the first implant part provided for being inserted into the jawbone includes a second indexing area with a number of functional surfaces which are oriented parallel to the longitudinal axis of the first implant part, and the second indexing area extends along a second portion of the longitudinal axis that is distinct from the first portion, and wherein the first implant part has the receiving channel and the second implant part has the contact pin, and wherein the first indexing area is positioned at the distal end of the contact pin, and the contact pin does not engage and is positioned outside of the second indexing area of the receiving channel.",
    "2. The dental implant of claim 1, wherein, in the first indexing area, some or all contact surfaces of the first implant part and the second implant part are provided with a friction-reducing coating.",
    "3. The dental implant of claim 1, whose first implant part and second implant part can mechanically be connected to each other via a connection screw, wherein a screw seat for the connection screw in the first implant part and the second implant part is provided with a friction-reducing coating.",
    "4. A dental implant, comprising: a first implant part provided for being inserted into a jawbone and a second implant part associated therewith; a contact pin formed onto one of the first implant part and the second implant part, wherein the first implant part and the second implant part 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 contact surface inclined against a longitudinal axis of the first implant part and having a non-round cross section with a plurality of concave parts and/or a plurality of convex parts, wherein the first indexing area extends along a first portion of the longitudinal axis, and the first indexing area of the contact pin is positioned at a distal end of the contact pin, and wherein the first implant part provided for being inserted into the jawbone includes a second indexing area with a number of functional surfaces which are oriented parallel to the longitudinal axis of the first implant part, wherein the second indexing area extends along a second portion of the longitudinal axis that is distinct from the first portion.",
    "5. The dental implant of claim 4, wherein, in the first indexing area, some or all contact surfaces of the first implant part and the second implant part are provided with a friction-reducing coating.",
    "6. The dental implant of claim 4, whose first implant part and second implant part can mechanically be connected to each other via a connection screw, wherein a screw seat for the connection screw in the first implant part and the second implant part is provided with a friction-reducing coating.",
    "7. The dental implant of claim 4, wherein the first indexing area and the second indexing area are designed for the same number of positioning possibilities."
  ],
  "description_excerpt": "This invention relates generally to dental prosthesis and more specifically to dental implants.\n\nThe invention relates to a dental implant having a first implant part provided for being inserted into a jawbone and a second implant part associated therewith, provided for fixing a dental prosthesis, the implant parts being mechanically connectable to each other via a connection pin or contact pin which is formed onto one of the implant parts and which can be pushed into a receiving channel or a profiled recess provided in the other implant part.\n\nSuch dental implants, so-called two-part or multi-part implants, are known in many different forms. They are usually inserted into the jawbone in the place of an extracted or shed tooth, in order to hold there, after a healing-in phase of three to four months, a prosthetic part serving as a dental prosthesis or a crown. For this purpose, such a dental implant is usually configured as an appropriately shaped metallic body, the first implant part, as a rule also called post part, being usually inserted into the jawbone by screwing-in, in the intended place. As a rule, the post part includes at its apical end a screw thread, in most cases a self-cutting thread, with which the post part is inserted into the correspondingly prepared implant bed.\n\nSuch a dental implant is usually made up in general of two parts, comprising the post part provided for insertion into the jawbone and an associated superstructure part, on which the dental prosthesis provided as a prosthesis or the like can be fastened.",
  "cpc": [
    "A61C 8/0054",
    "A61C 8/0013",
    "A61C 8/005",
    "A61C 8/0056",
    "A61C 8/0059",
    "A61C 8/006",
    "A61C 8/0066",
    "A61C 8/0068",
    "A61C 8/0069",
    "A61C 8/0071"
  ],
  "ipc": [
    "A61C 8/00"
  ],
  "assignees": [
    "Nobel Biocare Services AG"
  ],
  "inventors": [
    "Holger Zipprich"
  ],
  "filing_date": "2016-12-09",
  "publication_date": "2021-11-09",
  "grant_date": "2021-11-09",
  "priority_date": "2010-05-05",
  "application_number": "US-201615374548-A",
  "family_id": "44903632",
  "cited_by_count": 2,
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