US 2018/0008381 A1 · COATING OF DENTAL PROSTHETIC SURFACES COMPRISING A DISTINCT LAYER OF A SYNTHETIC HYDROXYAPATITE

Abstract

Subject matter of the invention are prosthetic mouldings, which have, at least area by area, at least one layer of biomimetic apatite selected from fluorapatite, hydroxylapatite or their mixtures on their surface, wherein the surface of the mouldings has micromechanical anchoring positions at least in this area to improve mechanical connection of apatite to the surface. Another subject matter of the invention are mouldings for use in dental, prosthetic treatment for tooth loss, in particular for cellular attachment of cells to prosthetic mouldings. Moreover, subject matter of the invention is the method for the production of the prosthetic mouldings.

Claims21

Dependent claims

A prosthetic moulding, wherein the moulding has, at least area by area, at least one layer of biomimetic apatite selected from fluorapatite, hydroxylapatite or their mixtures on its surface, wherein the surface has micromechanical anchoring positions at least in this area.

A method for the deposition of biomimetic apatite selected from fluorapatite, hydroxylapatite or their mixtures on a prosthetic moulding, comprising the steps of

(i.a) providing a prosthetic moulding, wherein at least one area of the surface of the moulding has micromechanical anchoring positions, or
(i.b) treating at least one area of the surface of the prosthetic moulding, and obtaining micromechanical anchoring positions, and optional
(ii) treating at least one area of the surface of a prosthetic moulding, with a pretreatment compositions having a defined pH value,
(iii) contacting at least this area of the prosthetic moulding comprising micromechanical anchoring positions with a composition containing phosphate ions, which comprises a gel forming agent, whereby a gel layer is formed,
(iv) optionally applying a further layer, contacting the first gel layer with a further composition which comprises a gel forming agent, forming a further gel layer,
(v) contacting the first gel layer or the further layer with a composition containing calcium ions, whereby a gel layer is formed,
(vi) depositing biomimetic apatite selected from fluorapatite, hydroxylapatite or their mixtures on the surface of the prosthetic moulding.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/548,273Filed 3 Feb 2016

Priority

DE 10 2015 101 626.54 Feb 2015

Published

11 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

A61C 8/0013
Characterised by the material or composition, e.g. ceramics, surface layer, metal alloy: with a surface layer, coating
A61C 5/20
Filling or capping teeth: repairing attrition damage, e.g. facets
A61C 5/70
Filling or capping teeth: tooth crowns; Making thereof
A61C 8/0006
Consolidating natural teeth: periodontal tissue or bone regeneration

Coating of dental prosthetic surfaces comprising a distinct layer of a synthetic hydroxyapatite

Life of this patent

Coating of dental prosthetic surfaces comprising a distinct layer of a synthetic hydroxyapatite

Life of this patent

Abstract

Claims21