Dental implant

• US 8,052,422 B2
• Filed: 08/29/2008
• Issued: 11/08/2011
• Est. Priority Date: 08/29/2008
• Status: Expired due to Fees

• Current Assignee: Aidi Biomedical, Llc
• Original Assignee: William Y.S. Hung
• Inventors: Hung, William Y. S.
• Primary Examiner(s): Rodriguez; Cris L
• Assistant Examiner(s): Moran; Edward
• Application Number:
  US12/231,175
• Publication Number:
  US 20100055643A1
• Time in Patent Office: 1,166 Days
• Field of Search: 433172-176, 433/201.1, 411/419, 411/422, 411/424
• US Class Current: 433/174
• CPC Class Codes: A61C 8/0018 characterised by the shape
• CPC Class Codes: A61C 8/005 Connecting devices for joining an upper structure with an implant member, e.g. spacers

Abstract

A dental implant includes a dental implant body which is a cylinder body having a first end and a second end, an asymmetric thread being provided around the dental implant body, an apex lock being formed at the first end for inserting into a sinus of a desired position, and an endomaximum lock being provided at the second end for integrally connected with an abutment through a bolt. The apex lock is a space indented in the first end for enabling new grown bone of the sinus extending into the apex lock to provide a locking mechanism to ensure integration between the dental implant and the bone. The endomaximum lock has a lock cavity having a lock opening at the second end for receiving a root of the abutment therein.

Claims

1. A dental implant for inserting into a sinus of a gum, comprising:

a dental implant body which is a cylindrical body having a first end, a second end, a ferroembrace, and an asymmetric thread formed around said dental implant body, wherein said second end is a threadless end portion and said asymmetric thread has an elongated segment of main thread portion and a short segment of end thread portion provided adjacent to said second end portion while said main thread portion extending immediately from said end thread portion to said first end, wherein said main thread portion has a first side, a second side and a blade edge at a tip between said first and second sides, and said end thread portion has lower height and shorter pitch than said main thread portion, so as to form said asymmetric thread, wherein said ferroembrace which is provided around said second of said dental implant body has a bevel wall extending inwardly from a periphery edge of said second end for placing the gum on said bevel wall of said ferroembrace after said dental implant is inserted in the sinus of the gum;

an apex lock formed at said first end of said dental implant body for inserting into the sinus of a desired position, wherein said apex lock has an apex cavity which is a blind hole indented in said first end and has a cavity bottom and a cavity wall extending to a periphery edge of said apex lock, wherein said apex cavity defines an apex opening allowing a new grown bone of the sinus to grow therein, wherein said apex lock comprises a lock element which is an internal thread provided on said cavity wall of said apex cavity for providing a locking mechanism to ensure an integration between said dental implant and the bone of the sinus, wherein said internal thread of said cavity wall of said apex cavity is oriented in an opposite direction of said asymmetric thread, thereby when a force is applied to loosening said asymmetric thread, said internal thread of said apex lock is fastened at the same time; and

an endomaximum lock provided at said second end of said implant body for integrally connecting with an abutment through a bolt;

wherein said end thread portion of said asymmetric thread of said dental implant body has a smaller dimension than said main thread portion for increasing contact area between said end thread portion and a surrounding bone of the sinus for stability;

wherein said first side of said main thread portion of said asymmetric thread, which is facing the first end of said dental implant body, has a smaller slope angle while said second side of said main thread portion of said asymmetric thread, which is facing said second end of said dental implant body, has a larger slope angle, rendering said second side being more precipitous than said first side, thereby said first side with smaller slope angle reduces resistance when said dental implant is inserted into said sinus, and said second side with larger slope angle increases resistance to pull said dental implant out of said sinus so as to increases a stability of said dental implant after inserted into said sinus;

wherein said blade edge is a self-cutting edge for cutting into the surrounding bone of the sinus without drilling out the surrounding bone of the sinus for maximally reducing bone loss during the inserting of said dental implant into the sinus;

wherein said main thread portion of said dental implant body has a tapered insertion root portion adjacent said first end thereof and a plurality of apex indentions spacedly formed in said insertion root portion of said dental implant body, wherein each said apex indention has a V-shape cross section defining two blade surfaces cutting into said dental implant body from a tip of said first end of said dental implant body, wherein at said two blade surfaces, said blade edge forms one or more cutting blades, thereby when said dental implant is screwed inside the sinus, said cutting blades cut into the surrounding bone of the sinus first and any surrounding bone drilled out by said cutting blades is reserved inside said apex indentations.

2. The dental implant, as recited in claim 1, wherein said endomaximum lock has a lock cavity and a universal holder, wherein said lock cavity has a lock opening formed at said second end for receiving a root of said abutment therein, and said universal holder has a plurality of engaging slots formed at said lock opening adapted for respective engaging jaws protruded from the root of the abutment to engage.

3. The dental implant, as recited in claim 2, wherein said engaging slots are distributed evenly around an axle of said dental implant body.

4. The dental implant, as recited in claim 3, wherein six engaging slots are provided with an angle of 60°

between said two adjacent engaging slots for engaging with three engaging jaws of the abutment.

5. The dental implant, as recited in claim 2, wherein said lock cavity has a first section and a second section, wherein said first section is positioned closer to said locking opening for containing the root of the abutment and has a diameter the same as the root of the abutment, wherein said second section is adjacent to said first section and deeper inside said lock cavity.

6. The dental implant, as recited in claim 3, wherein said lock cavity has a first section and a second section, wherein said first section is positioned closer to said locking opening for containing the root of the abutment and has a diameter the same as the root of the abutment, wherein said second section is adjacent to said first section and deeper inside said lock cavity.

7. The dental implant, as recited in claim 4, wherein said lock cavity has a first section and a second section, wherein said first section is positioned closer to said locking opening for containing the root of the abutment and has a diameter the same as the root of the abutment, wherein said second section is adjacent to said first section and deeper inside said lock cavity.

8. The dental implant, as recited in claim 2, wherein said second section of said lock cavity has a lock thread provided around an inner wall of said second section for screwing with the bolt.

9. The dental implant, as recited in claim 3, wherein said second section of said lock cavity has a lock thread provided around an inner wall of said second section for screwing with the bolt.

10. The dental implant, as recited in claim 4, wherein said second section of said lock cavity has a lock thread provided around an inner wall of said second section for screwing with the bolt.

11. The dental implant, as recited in claim 5, wherein said second section of said lock cavity has a lock thread provided around an inner wall of said second section for screwing with the bolt.

12. The dental implant, as recited in claim 6, wherein said second section of said lock cavity has a lock thread provided around an inner wall of said second section for screwing with the bolt.

13. The dental implant, as recited in claim 7, wherein said second section of said lock cavity has a lock thread provided around an inner wall of said second section for screwing with the bolt.