Method and system for dental implantation

10149,740

13/055465

July 22, 2009

A modular dental implant that includes multiple segments that are connected to each other in a sequential manner to form the modular dental implant; wherein the multiple segments comprise an abutment, at least one implant body segment and at least one other segment; wherein the at least one other segment is an implant apex, an implant neck or at least one implant body segment.

Kfir, Pinchas (Petach Tikva, IL)

Zeev Implants Ltd. (M.P. Misgav, IL)

1. A modular dental implant comprising: (a) an implant apex comprising: an internal fastening surface; (b) at least one first hollow implant body segment that comprises: an internal surface having a fastening surface and at least one helical extracting thread wherein the fastening surface and the at least one helical extracting thread are distinct; an external fastening surface configured to be fastened to said internal fastening surface of said implant apex; (c) an abutment having a screw access hole, said abutment configured to be fastened to said first hollow implant body segment; and (d) a fastening screw configured to be screwed: (i) through said abutment and said first hollow implant body segment, and (ii) into said implant apex, when said abutment, said first hollow implant body segment, and said implant apex are fastened together.

2. The modular dental implant according to claim 1 , wherein the following elements are helically-threaded: said internal fastening surface of said implant apex; said internal fastening surface of said first hollow implant body segment; and said external fastening surface of said first hollow implant body segment.

3. The modular dental implant according to claim 1 , wherein the following elements have a detachment prevention texture that generates friction: said internal fastening surface of said implant apex; said internal fastening surface of said first hollow implant body segment; and said external fastening surface of said first hollow implant body segment.

4. The modular dental implant according to claim 1 , further comprising a second hollow implant body segment that comprises: an internal fastening surface; and an external fastening surface configured to be fastened to said helically-threaded internal fastening surface of said first hollow implant body segment.

5. The modular dental implant according to claim 4 , wherein each of said first and second hollow implant body segments further comprises: at least one circumferential groove; and at least one circumferential tongue shaped to fit into said at least one circumferential groove of the other one of said first or said second hollow implant body segments.

6. The modular dental implant according to claim 4 , wherein: said external fastening surface of said first and second hollow implant body segments has a diameter larger than a diameter of said internal fastening surface of said first and second hollow implant body segments, so that said first hollow implant body segment can be fastened to said second hollow implant body segment by forcing said external fastening surface of said first hollow implant body segment to said internal fastening surface of said second hollow implant body segments.

7. The modular dental implant according to claim 1 , wherein at least one of said implant apex and said first hollow implant body segment further comprises external threads configured for at least one of: assisting in insertion of the modular dental implant into a drilled jaw; and preventing undesired extraction of the modular dental implant from the jaw.

8. The modular dental implant according to claim 1 , wherein: said implant apex further comprises: an extractor supporting surface disposed at the bottom of said implant apex.

9. The modular dental implant according to claim 1 , further comprising: an implant neck comprising: an external fastening surface that is substantially identical to said external fastening surface of said first hollow implant body segment, wherein said external fastening surface of said implant neck is configured to be fastened to said internal fastening surface of said first hollow implant body segment; and an internal abutment mount configured to provide support to said abutment, wherein said fastening screw is further configured to be screwed through said implant neck.

10. The modular dental implant according to claim 1 , wherein: said abutment is shaped to fit into a top portion of said first hollow implant body segment.

11. The modular dental implant according to claim 1 , wherein said at least one helical extracting thread is configured so that when engaged with threads of a rotating extractor brings about extraction of said first hollow segment from said hollow implant apex.

12. The modular dental implant according to claim 1 , wherein said hollow implant body internal surface comprises a neck.

13. A method comprising: providing a modular dental implant that comprises: (a) an implant apex comprising: an internal fastening surface; (b) a first hollow implant body segment comprising: an internal surface having a fastening surface and at least one helical extracting thread wherein the fastening surface and the at least one helical extracting thread are distinct; an external fastening surface configured to be fastened to said internal fastening surface of said implant apex, (c) an abutment having a screw access hole, said abutment configured to be fastened to said first hollow implant body segment, and (d) a fastening screw; fastening said external fastening surface of said first hollow implant body segment to said internal fastening surface of said implant apex; and screwing said fastening screw: (i) through said abutment and said first hollow implant body segment, and (ii) into said implant apex, when said abutment, said first hollow implant body segment, and said implant apex are fastened together.

14. The method according to claim 13 , wherein: said modular dental implant further comprises a second hollow implant body segment that comprises: an internal surface having a fastening surface and at least one helical extracting thread wherein the fastening surface and the at least one helical extracting thread are distinct; and an external fastening surface configured to be fastened to said helically-threaded internal surface of said first hollow implant body segment; and the method further comprises: fastening said external fastening surface of said second hollow implant body segment to said internal fastening surface of said first hollow implant body segment, wherein the screwing of said fastening screw is further through said second hollow implant body segment.

15. The method according to claim 14 , wherein: said implant apex further comprises: an extractor supporting surface disposed at the bottom of said implant apex; and the method further comprises using an extractor that has an extracting helical thread to extract said first hollow implant body segment by: rotating said extractor and forcing said extractor against said extractor supporting surface of said implant apex, thereby extracting said first hollow implant body segment.

16. The method according to claim 14 , wherein when forcing said extractor against said extractor supporting surface of said implant apex, said extractor extracting helical thread engages said at least one helical extracting thread of said first hollow implant body segment.

17. A kit comprising: a modular dental implant that comprises: (a) an implant apex comprising: an internal fastening surface, an extractor supporting surface disposed at the bottom of said implant apex; (b) a first hollow implant body segment comprising: an internal surface having a fastening surface and at least one helical extracting thread wherein the fastening surface and the at least one helical extracting thread are distinct; a helically-threaded external fastening surface configured to be fastened to said helically-threaded internal fastening surface of said implant apex; (c) an abutment having a screw access hole, said abutment configured to be fastened to said first hollow implant body segment; and (d) a fastening screw configured to be screwed: (i) through said abutment and said first hollow implant body segment, and (ii) into said implant apex, when said abutment, said first hollow implant body segment, and said implant apex are fastened together; and a first extractor: having an extracting helical thread, and configured to extract said first hollow implant body segment by: rotating said extractor and forcing said extractor against said extractor supporting surface of said implant apex, thereby extracting said first hollow implant body segment.

18. The kit according to claim 17 , further comprising: a second hollow implant body segment that comprises: an internal surface having a fastening surface and at least one helical extracting thread wherein the fastening surface and the at least one helical extracting thread are distinct; an external fastening surface configured to be fastened to said internal fastening surface of said first hollow implant body segment; a second extractor: having an extracting helical thread, and configured to extract said second hollow implant body segment by: rotating said extractor and forcing said extractor against said extractor supporting surface of said implant apex, thereby extracting said second hollow implant body segment, wherein: said extracting helical thread of said first extractor is located at distance from a bottom of said first extractor that is different than a distance between said extracting helical thread of said second extractor and a bottom of said second extractor; and an extractor selection gauge having denotations at different distances from a bottom of said extractor selection gauge, wherein each of said denotations is indicative of a different one of said first extractor and second extractor.

19. The kit according to claim 17 , wherein said extracting helical thread of said first extractor is located at distance from a bottom of said first extractor and engages said at least one helical extracting thread of said first hollow implant body segment.

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