# US 2004/0170947 A1 · Dental implant and bone regeneration device and method of implementation

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- Number: US 2004/0170947 A1
- Document ID: US20040170947A1
- Status: Published application
- Kind: A1
- Application number: 10/759,839
- Filed: 2004-01-16
- Published: 2004-09-02
- Earliest claimed: 2003-02-27
- Inventors: Robert H. Milne
- Web page: https://patentgrep.com/patent/US20040170947A1

## CPC

- A61C 8/0022: {Self-screwing (A61C8/0028 takes precedence)}
- A61C 8/0006: {Periodontal tissue or bone regeneration (support means for endoprosthetic bone substitute or bone graft implants A61F2/2846)}
- A61C 8/005: {Connecting devices for joining an upper structure with an implant member, e.g. spacers}
- A61C 8/0057: {with elastic means}
- A61C 8/0059: {with additional friction enhancing means}
- A61C 8/006: {with polygonal positional means, e.g. hexagonal or octagonal}
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)

## Abstract

A dental implant and bone preservation and regeneration arrangement and method of implementation is disclosed. The dental implant arrangement includes an implant body screwed into a patient's alveolar bone. An abutment on the implant body collar portion receives a crown. The implant body, the abutment, the crown, the implant body/abutment junction or the abutment/crown junction includes a “macro-feature” such as a “macro-gap” or “macro-protrusion” large enough to encourage gingival tissue growth in and/or around the feature. The growth prevents oral bacteria from getting below the level of the macro-feature. The arrangement reduces bone loss and encourages bone regeneration. The macro-feature can be progressively repositioned to regenerate bone.

## Claims

### Claim 1

A device implantable into the alveolar crest comprising:
a macro-feature disposed to shape gingival tissue into a gingival barrier.

### Claim 2 (depends on 1)

A device according to claim 1 wherein the device is a dental implant.

### Claim 3 (depends on 1)

A device according to claim 1 wherein the device includes and adjustment means, said adjustment means enabling the device to be extractable from the alveolar crest thereby progressively moving the macro-feature away from the alveolar crest and pulling the gingival tissue further away from the alveolar crest encouraging bone regeneration on the alveolar crest in a direction away from the alveolar crest.

### Claim 4 (depends on 2)

A device according to claim 2 wherein said dental implant includes an implant body being screwed into a patient's alveolar bone, said implant body having a collar portion, an abutment being attachable to said collar portion a crown being attachable to said abutment, wherein said macro-feature includes a circumferential macro-gap on said abutment disposed to enable gingival tissue to grow into said gingival barrier.

### Claim 5 (depends on 2)

A device according to claim 2 wherein said dental implant includes an implant body being screwed into a patient's alveolar bone, said implant body having a collar portion, an abutment being attachable to said collar portion a crown being attachable to said abutment, wherein said macro-feature includes a circumferential macro-gap on said collar portion disposed to enable gingival tissue to grow into said gingival barrier.

### Claim 6 (depends on 2)

A device according to claim 2 wherein said dental implant includes an implant body being screwed into a patient's alveolar bone, said implant body having a collar portion, an abutment being attachable to said collar portion a crown being attachable to said abutment, wherein said macro-feature includes a circumferential macro-gap on said crown disposed to enable gingival tissue to grow into said gingival barrier.

### Claim 7 (depends on 2)

A device according to claim 2 wherein said dental implant includes an implant body being screwed into a patient's alveolar bone, said implant body having a collar portion, an abutment being attachable to said collar portion a crown being attachable to said abutment, a spacer between said abutment and said crown, wherein said macro-feature includes a circumferential macro-gap formed by a space created adjacent said spacer disposed to enable gingival tissue to grow into said gingival barrier.

### Claim 8 (depends on 2)

A device according to claim 2 wherein said dental implant includes an implant body being screwed into a patient's alveolar bone, said implant body having a collar portion, an abutment being attachable to said collar portion a crown being attachable to said abutment, a spacer between said collar portion and said abutment, wherein said macro-feature includes a circumferential macro-gap formed by a space created adjacent said spacer disposed to enable gingival tissue to grow into said gingival barrier.

### Claim 9 (depends on 2)

A device according to claim 2 wherein said dental implant includes an implant body being screwed into a patient's alveolar bone, said implant body having a collar portion, an abutment being attachable to said collar portion a crown being attachable to said abutment, wherein said macro-feature includes a circumferential macro-protrusion extending from said abutment disposed to enable gingival tissue to grow into said gingival barrier.

### Claim 10

A method of regeneration jaw bone on a patient comprising the steps of:
inserting a device is into the patient's alveolar crest, the device having a macro-feature disposed to shape gingival tissue into a gingival barrier;
allowing the gingival barrier to grow; and
progressively extracting the device from the patient's alveolar crest.