System and method for producing a three-dimensional body comprising bone or tissue-compatible material

• US 7,079,914 B2
• Filed: 06/28/2004
• Issued: 07/18/2006
• Est. Priority Date: 12/28/2001
• Status: Expired due to Fees

• Current Assignee: Nobel Biocare AB (Danaher Corporation)
• Original Assignee: Nobel Biocare AB (Danaher Corporation)
• Inventors: Berggren, Carina
• Primary Examiner(s): Picard, Leo
• Assistant Examiner(s): Shechtman, Sean
• Application Number:
  US10/710,221
• Publication Number:
  US 20050154483A1
• Time in Patent Office: 750 Days
• Field of Search: 700/60, 700/61, 700/62, 700/118, 700/119, 700/180, 700/182, 700/185, 700/196, 700/197, 700/212
• US Class Current: 700/119
• CPC Class Codes: A61C 13/0003 Making bridge-work, inlays, implants or the like
• CPC Class Codes: A61C 13/0004 Computer-assisted sizing or machining of dental prostheses
• CPC Class Codes: A61C 13/0019 using three dimensional printing
• CPC Class Codes: A61C 5/77 Methods or devices for making crowns
• CPC Class Codes: C23C 4/12 characterised by the method of spraying
• CPC Class Codes: C23C 4/185 Separation of the coating from the substrate

Abstract

A system useful in producing a three-dimensional body comprising bone or tissue-compatible material includes a detection and analysis site which identifies and simulates a portion of a body in connection with an implantation situation. A production device produces a model responsive to the simulation information. A flame-spraying apparatus provides the bone-compatible and/or tissue-compatible material in a powder form through a nozzle. Relative movement between the nozzle and a support member supporting the model or die is controlled to apply one or more layers of the bone-compatible material to the model. A method includes using a computer to identify and simulate a body in connection with a given implantation situation, and producing a model or die accordingly. the bone or tissue-compatible material is flame-sprayed in a powder form. Movements of a nozzle and/or a supporting member are controlled so as to effect a desired surface characteristic on the three-dimensional body.

Claims

1. An apparatus useful in producing a three-dimensional dental product comprising bone-compatible and/or tissue-compatible material, the apparatus comprising:

identification and simulation means for identifying and simulating at least a portion of a dental crown or implant in connection with a dental implantation situation;

a production device which produces a dental model or die responsive to identification and simulation information provided by the identification and simulation means;

a flame-spraying apparatus which provides the bone-compatible and/or tissue-compatible material in a powder form through a nozzle; and

means for controlling movement between the nozzle and a support member supporting the dental model or die,

wherein the flame-spraying apparatus is arranged to apply layers of the bone-compatible and/or tissue-compatible material to the dental model or die via the nozzle during simultaneous movement control of at least one of the nozzle and the supporting member.

2. A system useful in producing a three-dimensional dental product comprising bone-compatible and/or tissue-compatible material, the system comprising:

a detection and analysis site comprising identification and simulation means for identifying and simulating at least a portion of a dental crown or implant in connection with a dental implantation situation;

a production device which produces a dental model or die responsive to identification and simulation information provided by the identification and simulation means;

a flame-spraying apparatus which provides the bone-compatible and/or tissue-compatible material in a powder form through a nozzle; and

means for controlling movement between the nozzle and a support member supporting the dental model or die,

wherein the flame-spraying apparatus is arranged to apply a layer of the bone-compatible and/or tissue-compatible material to the dental model or die via the nozzle while simultaneously controlling movement between the nozzle and the supporting member.

3. The system of claim 2, wherein the bone-compatible and/or tissue-compatible material comprises titanium.

4. The system of claim 2, wherein the identification and simulation means comprises a computer processor.

5. The system of claim 2, further comprising means for controlling a surface configuration of the three-dimensional dental product.

6. The system of claim 2, wherein variations in a wall thickness of the bone-compatible and/or tissue-compatible material covering the dental model or die are controlled by means for controlling one or both of the flame-spray apparatus and the movement between the nozzle and the dental model or die.

7. The system of claim 2, wherein plural thin layers of the bone-compatible and/or tissue-compatible material are applied to the dental model or die from the nozzle, wherein the plural thin layers form a framework.

8. The system of claim 7, wherein the framework on the three-dimensional dental product is suitable for being separated from the dental model or die after the plural layers have hardened.

9. The system of claim 3, wherein the titanium comprises titanium powder having a purity of 99.99%.

10. The system of claim 3, wherein the titanium comprises titanium powder having a small-particle size of 325 mesh.

11. The system of claim 2, further comprising plural detection and analysis sites separated from each other, wherein the production device produces multiple dental models responsive to associated identification and simulation information provided by respective ones or the plural detection and analysis sites.

12. The system of claim 2, further comprising a communication network which couples the identification and simulation information to the detection and analysis site.

13. A three-dimensional dental product produced by the system of claim 2, wherein the three-dimensional dental product is suitable for use in an implantation process.

14. A method for producing a three-dimensional dental product comprising bone-compatible and/or tissue-compatible material, the method comprising:

using a computer to identify and simulate a dental crown or implant in connection with a given dental implantation situation;

producing a dental model or die responsive to the identification and simulation of the dental crown or implant;

flame-spraying the bone-compatible and/or tissue-compatible material in a powder form through a nozzle;

applying one or more coating layers of the bone-compatible and/or tissue-compatible material to the dental model or die via the nozzle; and

simultaneously, with said applying one or more coating layers, controlling movement of die nozzle and/or a supporting member of the dental product so as to effect a desired surface characteristic on the three-dimensional dental product.

15. The method of claim 14, wherein the bone-compatible and/or tissue-compatible material comprises titanium powder.

16. The method of claim 14, further comprising:

hardening the one or more coating layers of the bone-compatible and/or tissue-compatible material;

removing the three-dimensional dental product from the dental model or die; and

using the three-dimensional dental product in the given dental implantation situation.

17. A three-dimensional dental product produced by the method of claim 14.