METHOD FOR PRODUCING A DENTAL IMPLANT, DENTAL IMPLANT, AND ABRASIVE BLASTING AGENT

Abstract

A method for producing a dental implant is provided. The method includes the steps of (a) providing a dental implant base body, especially an anchoring pin base body; (b) abrasive blasting of at least one surface portion, which is to be configured with a surface that promotes bone growth, and at least regional application of abrasive blasting agent to the surface portion; (c) at most partial removal of the abrasive blasting agent from the surface portion; and (d) sintering of the dental implant base body together with the abrasive blasting agent remaining on the surface portion.

Claims

1. A method of manufacturing a dental implant (20), the method comprising by the steps of: a) provision of a dental implant base body, especially an anchoring pin base body; b) abrasive blasting of at least one surface portion (40), which is to be configured with a surface that promotes bone growth, and at least regional application of abrasive blasting agent to the surface portion; c) at most partial removal of the abrasive blasting agent from the surface portion (40); and d) sintering of the dental implant base body together with the abrasive blasting agent remaining on the surface portion (40).

2. The method according to claim 1, wherein the abrasive blasting agent is applied to the surface portion (40) at a pressure of 0.1 bar-10.0 bar.

3. The method according to claim 1, wherein step a) comprises a presintering and/or prefiring of the dental implant base body.

4. The method according to claim 3, wherein the dental implant base body is presintered and/or prefired at a temperature of 600 C.-1,100 C.

5. The method according to claim 1, wherein a calcium phosphate compound in powder form and/or a hydroxyapatite compound in powder form is used as an abrasive blasting agent.

6. The method according to claim 1, wherein the dental implant base body is sintered in step d) at a temperature of 1,300 C.-1,600 C., in particular 1,400 C.-1,550 C.

7. The method according to claim 1, wherein in step c) cleaning is carried out in such a way that loose abrasive blasting agent particles are removed.

8. A dental implant (20) produced by a method according to claim 1.

9. The dental implant (20) according to claim 8, wherein the at least one surface portion (40) comprises calcium phosphate particles and/or hydroxyapatite particles.

10. An abrasive blasting agent for use in a method according to claim 1, wherein the abrasive blasting agent is a powder comprising calcium phosphate and/or hydroxyapatite.

11. The abrasive blasting agent according to claim 10, wherein the powder comprises at least 5% calcium phosphate and/or at least 30% calcium phosphate compounds.

12. The method according to claim 2, wherein the abrasive blasting agent is applied to the surface portion (40) at a pressure of 1.0 bar-5.0 bar.

13. The method according to claim 12, wherein the abrasive blasting agent is applied to the surface portion (40) at a pressure of 1.5 bar-2.5 bar.

14. The method according to claim 4, wherein the dental implant base body is presintered and/or prefired at a temperature of 700 C.-900 C.

15. The method according to claim 6, wherein the dental implant base body is sintered in step d) at a temperature of 1,400 C.-1,550 C.

16. The abrasive blasting agent according to claim 11, wherein the powder comprises at least 10% calcium phosphate and/or at least 50% calcium phosphate compounds.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0058] The foregoing summary, as well as the following detailed description of the preferred invention, will be better understood when read in conjunction with the appended drawing:

[0059] FIG. 1 shows a dental implant component 10, which was produced according to a method according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

[0060] The dental implant component 10 comprises an anchoring pin 20 and an abutment 30. The anchoring pin 20 has a surface portion 40 which is formed with a surface that promotes bone growth. It can be seen that this is only a partial section of the complete surface of the anchoring pin 20. A second surface portion 50 of the anchoring pin 20, which in the implanted state lies against the gum, is not formed with a surface that promotes bone growth.

[0061] The surface portion 40 is produced in the course of a blasting process, in the sense of a sandblasting process. An abrasive blasting agent, in particular a powder comprising calcium phosphate and/or hydroxyapatite, is applied to surface portion 40.

[0062] The abrasive blasting agent is subsequently not or at least not completely removed, so that the abrasive blasting agent or the abrasive blasting agent particles represent(s) a part of the surface promoting bone growth.

[0063] Spaces may be formed between the individual particles, so that surface portion 40 also has a corresponding roughness.

[0064] In summary, a dental implant component can be made available with the aid of a simplified method, which has an improved surface, at least in portions, with regard to bone growth promotion, i.e. osteogenesis.

[0065] It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present invention as defined by the appended claims.