US 11,819,381 B2 · Dental implant system with surface gradient microporous structure and a preparation method thereof

Abstract

The invention provides a dental implant system with a surface gradient microporous structure and a preparation method thereof. The dental implant system includes a non-threaded micro-cone cylindrical dental implant and an abutment, wherein the dental implant includes a microporous layer with a bionic bone trabecular structure and a base with extremely high density and mechanical strength. The dental implant system of the invention has both the precision of the internal structure and the bionic characteristics of the surface structure, which effectively improves the long-term stability after implantation, reduces the complexity of the processing process of the dental implant system, and can realize personalized and batch production.

Claims10

Dependent claims

A dental implant system with a surface gradient microporous structure, comprising a non-threaded micro-cone cylindrical dental implant with a surface porous structure, wherein the dental implant comprises a base and a microporous layer coating on an outside of the base, the microporous layer is a bionic bone trabecular structure, and a porosity and a micro-pore size of the microporous layer increase sequentially from inside to outside;

wherein the porosity of an inner wall of the microporous layer along a radial direction is 20% to 30%, and the porosity of an outer wall of the microporous layer along the radial direction is 50% to 60%, the micro-pore size of the inner wall of the microporous layer along the radial direction is 20 μm to 40 μm, and the micro-pore size of the outer wall of the microporous layer along the radial direction is 150 μm to 300 μm;
wherein a transition layer is disposed between the microporous layer and the base, and the transition layer is made of an aluminum alloy material with a melting point of 660-640° C.

A preparation method of a dental implant system with a surface gradient microporous structure, the dental implant system comprising a non-threaded micro-cone cylindrical dental implant with a surface porous structure, the dental implant comprising a base and a microporous layer coating on an outside of the base, the microporous layer is a bionic bone trabecular structure, and a porosity and a micro-pore size of the microporous layer increase sequentially from inside to outside;

wherein the porosity of an inner wall of the microporous layer along a radial direction is 20% to 30%, and the porosity of an outer wall of the microporous layer along the radial direction is 50% to 60%, the micro-pore size of the inner wall of the microporous layer along the radial direction is 20 μm to 40 μm, and the micro-pore size of the outer wall of the microporous layer along the radial direction is 150 μm to 300 μm;
the preparation method comprising the steps of:
preparing respectively the microporous layer and the base of the dental implant, and assembling various components that make up the dental implant;
wherein the preparing method of the microporous layer includes:
sintering and forming on a surface of a preformed tapered cylinder by laser 3D printing to obtain the microporous layer with the bionic bone trabecular structure.

2 more elements

Dependencies are inferred from the claim text.

Dental implant system with surface gradient microporous structure and a preparation method thereof

Life of this patent

Dental implant system with surface gradient microporous structure and a preparation method thereof

Life of this patent

Abstract

Claims10