Fabrication And Installation Of A Dental Implant

• US 20120064485A1
• Filed: 09/09/2010
• Published: 03/15/2012
• Est. Priority Date: 09/09/2010
• Status: Active Grant

• Current Assignee: Hankookin Inc.
• Original Assignee: Hankookin Inc.
• Inventors: Chun, James Jiwen, Chun, Angela Soyoung, Chun, Andrew Youngho, Chun, Jennifer Miseong
• Granted Patent: US 10,299,895 B2
• Time in Patent Office: Days
• US Class Current: 433/173
• CPC Class Codes: A61C 2008/0046 Textured surface, e.g. roughness, microstructure A61C8/0013 takes precedence
• CPC Class Codes: A61C 8/0033 Expandable implants; Implants with extendable elements
• CPC Class Codes: A61C 8/0036 Tooth replica

Abstract

A dental implant and a method and system for fabricating and installing the dental implant are provided. The dental implant comprises an implant member for insertion into a periodontal bone socket, and an anchoring assembly. The anchoring assembly is positioned within a hollow axial cavity of the implant member. The anchoring assembly comprises a fastening element and radial and equidistant cylindrical members. The fastening element engages the implant member within the hollow axial cavity. The cylindrical members are positioned proximal to the implant member'"'"'s root section. The root section comprises through-holes for radially and forcibly sliding the cylindrical members through them. Each of the cylindrical members comprises a first end interfacing with the fastening element, and a second end interfacing against a periodontal bone socket surface. When the fastening element apically advances within the hollow axial cavity, the cylindrical members generate an anchoring force to anchor the dental implant.

Claims

1. A dental implant, comprising:

an implant member for insertion into a periodontal bone socket of an extracted natural tooth, said implant member comprising a coronal section and a root section having a coronal end and an apical end, said coronal section axially extending from said coronal end of said root section;

an anchoring assembly positioned within a hollow axial cavity of said implant member, wherein said anchoring assembly anchors said implant member within said periodontal bone socket, said anchoring assembly comprising;

a fastening element engaged with said implant member, said fastening element positioned within said hollow axial cavity, wherein said fastening element comprises an apical section having a conical shaft and a truncated end; and

one or more radial and equidistant cylindrical members positioned proximal to said root section, wherein said root section of said implant member comprises one or more through-holes for radially and forcibly sliding said cylindrical members through said one or more through-holes, wherein each of said cylindrical members comprises a first end that interfaces with said conical shaft of said fastening element, and a second end that interfaces against a surface of said periodontal bone socket.

2. The dental implant of claim 1, wherein said fastening element is threaded to screwably engage said hollow axial cavity of said implant member, wherein said fastening element further comprises a coronal screw head for one of tightening and releasing said fastening element within said hollow axial cavity, wherein said fastening element apically advances within said hollow axial cavity when said fastening element is tightened by turning said coronal screw head.

3. The dental implant of claim 2, wherein said conical shaft of said fastening element radially and outwardly pushes said cylindrical members through said through-holes when said fastening element is apically advanced within said hollow axial cavity, whereby said second end of each of said cylindrical members presses substantially uniformly against said surface of said periodontal bone socket to generate an anchoring force to anchor said implant member within said periodontal bone socket.

4. The dental implant of claim 3, wherein said fastening element enables a dentist to control said anchoring force generated by said cylindrical members using said coronal screw head of said fastening element.

5. The dental implant of claim 1, wherein said implant member further comprises a plurality of hook shaped extensions circumferentially disposed around said root section of said implant member, wherein said hook shaped extensions anchor said surface of said periodontal bone socket for impeding coronal movement of said inserted implant member within said periodontal bone socket.

6. The dental implant of claim 1, wherein said implant member further comprises one or more longitudinal grooves parallel to said periodontal bone socket for allowing debris to escape out of said periodontal bone socket during said insertion of said implant member within said periodontal bone socket.

7. The dental implant of claim 1, wherein said implant member further comprises an outer surface, wherein said outer surface is a sandblasted micro-textured surface, wherein said outer surface comprises retentive grooves along a mid portion of said root section of said implant member to increase contact area between said implant member and said surface of said periodontal bone socket.

8. The dental implant of claim 1, further comprising a composite packing disposed on a coronal surface of said coronal section of said implant member, wherein said composite packing is filled with tooth filling composite materials, wherein said composite packing avoids direct contact of said implant member with opposing teeth to reduce para-functional interferences during an osseointegration period.

9. The dental implant of claim 1, wherein said surface of said periodontal bone socket and an outer surface of said implant member define an interstitial space therebetween after said insertion of said implant member within said periodontal bone socket, wherein said interstitial space is filled with one or more of a bone filler material, an osteogenic material, and antibiotic agents to ensure bone regeneration and long term stability of said dental implant.

10. The dental implant of claim 1, wherein said inserted dental implant is loaded with one or more of a permanent crown and a pre-fabricated tooth colored layer after an osseointegration period.

11. A method for installing a dental implant, comprising:

providing said dental implant comprising;

an implant member for insertion into a periodontal bone socket of an extracted natural tooth, said implant member comprising a coronal section and a root section having a coronal end and an apical end, said coronal section axially extending from said coronal end of said root section;

an anchoring assembly positioned within a hollow axial cavity of said implant member, wherein said anchoring assembly anchors said implant member within said periodontal bone socket, said anchoring assembly comprising;

a fastening element engaged with said implant member, said fastening element positioned within said hollow axial cavity, wherein said fastening element comprises an apical section having a conical shaft and a truncated end; and

one or more radial and equidistant cylindrical members positioned proximal to said root section, wherein said root section of said implant member comprises one or more through-holes for radially and forcibly sliding said cylindrical members through said one or more through-holes, wherein each of said cylindrical members comprises a first end that interfaces with said conical shaft of said fastening element, and a second end that interfaces against a surface of said periodontal bone socket;

inserting said implant member with said anchoring assembly of said dental implant into said periodontal bone socket; and

apically advancing said fastening element of said anchoring assembly within said hollow axial cavity, whereby said conical shaft of said fastening element radially and outwardly pushes said cylindrical members through said through-holes and presses said second end of each of said cylindrical members substantially uniformly against said surface of said periodontal bone socket to generate an anchoring force to anchor said implant member within said periodontal bone socket.

12. The method of claim 11, further comprising filling an interstitial space defined between said surface of said periodontal bone socket and said outer surface of said implant member, after said insertion of said implant member within said periodontal bone socket, with one or more of a bone filler material, an osteogenic material, and antibiotic agents to ensure bone regeneration and long term stability of said dental implant.

13. The method of claim 11, further comprising providing a plurality of hook shaped extensions circumferentially around said root section of said implant member, wherein said hook shaped extensions anchor said surface of said periodontal bone socket for impeding coronal movement of said inserted implant member within said periodontal bone socket.

14. The method of claim 11, further comprising providing one or more longitudinal grooves on said implant member parallel to said periodontal bone socket for allowing debris to escape out of said periodontal bone socket during said insertion of said implant member within said periodontal bone socket.

15. The method of claim 11, wherein said fastening element is threaded to screwably engage said hollow axial cavity of said implant member, wherein said fastening element comprises a coronal screw head for one of tightening and releasing said fastening element within said hollow axial cavity, wherein said fastening element is apically advanced within said hollow axial cavity when said fastening element is tightened by turning said coronal screw head.

16. The method of claim 15, further comprising controlling an anchoring force generated by said cylindrical members using said coronal screw head of said fastening element by a dentist.

17. The method of claim 11, further comprising sandblasting an outer surface of said implant member to obtain a sandblasted micro-textured surface and providing retentive grooves on said outer surface of said implant member along said mid portion of said root section of said implant member to increase contact area between said implant member and said surface of said periodontal bone socket.

18. The method of claim 11, further comprising providing a composite packing on a coronal surface of said implant member, wherein said composite packing is filled with tooth filling composite materials, wherein said composite packing avoids direct contact of said implant member with opposing teeth to reduce para-functional interferences during an osseointegration period.

19. The method of claim 11, further comprising loading said inserted dental implant with one or more of a permanent crown and a pre-fabricated tooth colored layer after an osseointegration period.

20. A system for fabricating and installing a dental implant and restoration for a patient, comprising:

a three dimensional X-ray imaging device for capturing high resolution three dimensional X-ray images of a natural tooth and a corresponding periodontal bone socket of said natural tooth before extraction of said natural tooth;

a digital simulator for digitally simulating insertion of said dental implant into said periodontal bone socket using said three dimensional X-ray images to establish a path for inserting said dental implant;

a fabricator for fabricating and milling said dental implant according to a treatment plan based on said digital simulation, said dental implant comprising;

an implant member for insertion into said periodontal bone socket of an extracted natural tooth, said implant member comprising a coronal section and a root section having a coronal end and an apical end, said coronal section axially extending from said coronal end of said root section;

an anchoring assembly positioned within a hollow axial cavity of said implant member, wherein said anchoring assembly anchors said implant member within said periodontal bone socket, said anchoring assembly comprising;

a fastening element engaged with said implant member, said fastening element positioned within said hollow axial cavity, wherein said fastening element comprises an apical section having a conical shaft and a truncated end; and

one or more radial and equidistant cylindrical members positioned proximal to said root section, wherein said root section of said implant member comprises one or more through-holes for radially and forcibly sliding said cylindrical members through said one or more through-holes, wherein each of said cylindrical members comprises a first end that interfaces with said conical shaft of said fastening element, and a second end that interfaces against a surface of said periodontal bone socket.

21. A method for fabricating and installing a dental implant and restoration for a patient, comprising:

capturing high resolution three dimensional X-ray images of a natural tooth and a corresponding periodontal bone socket of said natural tooth before extraction of said natural tooth;

digitally simulating insertion of said dental implant into said periodontal bone socket using said three dimensional X-ray images to establish a path for inserting said dental implant;

fabricating and milling said dental implant according to a treatment plan based on said digital simulation, said dental implant comprising;

an implant member for insertion into said periodontal bone socket of an extracted natural tooth, said implant member comprising a coronal section and a root section having a coronal end and an apical end, said coronal section axially extending from said coronal end of said root section;

an anchoring assembly positioned within a hollow axial cavity of said implant member, wherein said anchoring assembly anchors said implant member within said periodontal bone socket, said anchoring assembly comprising;

a fastening element engaged with said implant member, said fastening element positioned within said hollow axial cavity, wherein said fastening element comprises an apical section having a conical shaft and a truncated end; and

one or more radial and equidistant cylindrical members positioned proximal to said root section, wherein said root section of said implant member comprises one or more through-holes for radially and forcibly sliding said cylindrical members through said one or more through-holes, wherein each of said cylindrical members comprises a first end that interfaces with said conical shaft of said fastening element, and a second end that interfaces against a surface of said periodontal bone socket;

inserting said fabricated dental implant into said periodontal bone socket based on said established path for said insertion and said treatment plan;

filling a coronal surface of said coronal section of said implant member of said inserted dental implant with tooth filling composite materials for an osseointegration period; and

loading said inserted dental implant with one or more of a permanent crown and a pre-fabricated tooth colored layer after said osseointegration period.

22. The method of claim 21, wherein said insertion of said fabricated dental implant into said periodontal bone socket comprises apically advancing said fastening element of said anchoring assembly of said fabricated dental implant within said hollow axial cavity of said implant member, whereby said conical shaft of said fastening element radially and outwardly pushes said cylindrical members of said anchoring assembly through said through-holes and presses said cylindrical members substantially uniformly against said surface of said periodontal bone socket to generate an anchoring force to anchor said implant member of said fabricated dental implant within said periodontal bone socket.

23. The method of claim 21, further comprising filling an interstitial space defined between said surface of said periodontal bone socket and an outer surface of said implant member of said fabricated dental implant with one or more of a bone filler material, an osteogenic material, and antibiotic agents, after said insertion of said fabricated dental implant into said periodontal bone socket, to ensure bone regeneration and long term stability of said dental implant.

24. The method of claim 21, further comprising providing a plurality of hook shaped extensions circumferentially around said root section of said implant member, wherein said hook shaped extensions anchor said surface of said periodontal bone socket for impeding coronal movement of said inserted implant member of said inserted dental implant within said periodontal bone socket.

25. The method of claim 21, further comprising providing one or more longitudinal grooves on said implant member parallel to said periodontal bone socket for allowing debris to escape out of said periodontal bone socket during said insertion of said fabricated dental implant into said periodontal bone socket.

26. The method of claim 21, further comprising sandblasting an outer surface of said implant member of said fabricated dental implant to obtain a sandblasted micro-textured surface, and providing retentive grooves on said outer surface of said implant member along a mid portion of said root section of said implant member to increase contact area between said implant member and said surface of said periodontal bone socket.