# US 9,433,481 B2 · Implantable replica of natural tooth

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- Number: US 9,433,481 B2
- Document ID: US9433481B2
- Status: Granted
- Kind: B2
- Application number: 13/914,369
- Filed: 2013-06-10
- Published: 2014-12-11
- Granted: 2016-09-06
- Earliest claimed: 2013-06-10
- Applicants: Sergei Anatolievitch Agafontsev
- Inventors: Sergei Anatolievitch Agafontsev
- Web page: https://patentgrep.com/patent/US9433481B2

## CPC

- A61C 8/0036: {Tooth replica}
- A61C 8/0013: {with a surface layer, coating}
- A61C 8/0098: {Immediate loaded implants}
- A61C 13/09: {Composite teeth, e.g. front and back section (A61C13/0835, A61C13/1023 take precedence)}; Multilayer teeth
- A61K 6/84: comprising metals or alloys
- A61K 6/844: Noble metals
- B05D 7/00: Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials {(coating of foodstuffs A23P20/17, A23P20/15, A23P20/18)}
- 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)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)

## Abstract

A tooth implant comprises a tooth body sized to correspond to a tooth to be replaced and a layer of microscopic protrusions on an outer surface thereof. A method for preparing a dental implant comprising obtaining an model of the tooth to be replaced forming a tooth body corresponding to the model. The method further comprises applying a plurality of particles to at least a root portion of the tooth body and exposing the at least a root portion of the tooth body to a liquid ceramic so as to deposit a layer of cured liquid ceramic material on the at least a root portion of the tooth body.

## Claims

### Claim 1

A method for preparing a dental implant comprising:
obtaining an model of said tooth to be replaced;
forming a tooth body corresponding to said model of a sintered ceramic having a first sintering temperature; and
applying a plurality of particles having a second sintering temperature less than said first sintering temperature to at least a root portion of said tooth body by sintering; and
forming a layer of microfibers of chains of hydrated minerals to extend from said plurality of particles, wherein said microfibers are formed by:
applying a layer of liquefied ceramic suspension over said tooth body and plurality of particles;
heating said dental implant at a temperature less than said second sintering temperature;
cooling said dental implant;
exposing said dental implant to a solution of sulfuric acid and
exposing said dental implant to a solution of phosphoric acid.

### Claim 2 (depends on 1)

The method of claim 1 wherein said liquefied ceramic suspension comprises a low fusing ceramic material fused with a layer of a flux material mixed in an aqueous base.

### Claim 3 (depends on 2)

The method of claim 2 wherein said ceramic materials are selected from the group consisting of zirconium dioxide, aluminum oxide and lithium silicate.

### Claim 4 (depends on 2)

The method of claim 2 wherein said flux material is selected form the group consisting of Na2CO3, NaOH, K2CO3, KOH, Li2CO3 and LiOH.

### Claim 5 (depends on 2)

The method of claim 2 wherein said liquid ceramic material and said flux are mixed in a ratio of between 15 and 23% ceramic materials.

### Claim 6 (depends on 4)

The method of claim 4 wherein said liquefied ceramic suspension is prepared by fusing said ceramic materials and said flux materials, cooled, milled to a powder and mixed into an aqueous base.