Porous oral implant and preparation method thereof

A technology of oral implants and body, applied in the direction of dental implants, prostheses, pharmaceutical formulations, etc., can solve the problems of poor bone tissue regeneration ability, poor corrosion resistance, and biological toxicity, so as to improve surface biological activity, Improved osseointegration and high biocompatibility

Inactive Publication Date: 2019-03-22
ADVANCED FOR MATERIALS & EQUIP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the vast majority of commercial implants on the market are made of pure titanium (Ti) or TC4 (Ti6Al4V). Although Ti and Ti6Al4V have good biocompatibility, they still have their own problems: their bone The binding performance is not high, the corrosion resistance is not good, and the elastic modulus is high, and Ti6Al4V contains Al and V, which are cytotoxic elements. Al and V may dissolve into free monomers and enter the body fluid after long-term embedding in the human body, thus causing damage to organisms. body

Method used

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  • Porous oral implant and preparation method thereof
  • Porous oral implant and preparation method thereof
  • Porous oral implant and preparation method thereof

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Embodiment 1

[0031] This embodiment proposes a porous oral implant, including a porous body 1 and HA / TiO coated on the surface of the porous body. 2 Composite coating, the porous body is mainly composed of Ti, Ta, Nb and Zr, the porous body includes a plurality of beams, and the plurality of beams are interlaced to form a plurality of first holes interconnected, and the surfaces of the plurality of beams have second hole.

[0032] combine figure 1 and 2 , on the basis of the above-mentioned embodiments, the plurality of second pores on the porous body 1 in this embodiment includes a plurality of micron-level second pores and a plurality of nanometer-level second pores. from figure 1 A second pore with a pore size of 20 μm can be observed, from figure 2 Secondary pores with a pore diameter of 1 μm can be observed.

[0033] Further, combine image 3 and Figure 4 , the surface of the porous body 1 in this embodiment is wound with a threaded structure 2, the threaded structure 2 facil...

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Abstract

The invention relates to a porous oral implant and a preparation method thereof. The porous oral implant comprises a porous body and a HA/TiO2 composite coating layer coated on the surface of the porous body, wherein the porous body is mainly prepared from Ti, Ta, Nb and Zr; the porous body comprises a plurality of beams, the plurality of the beams are staggered to form a plurality of interpenetrated first holes, and second holes are formed in the surfaces of the plurality of the beams. Thus, surface biological activity of the implant is improved, and the osseointegration capacity is improved.The invention further provides the preparation method of the porous oral implant. The preparation method comprises the steps: alkali-heat treatment, micro-arc oxidation and electrochemical deposition. The surface of the porous body with complex morphology is coated with the HA/TiO2 composite coating layer.

Description

technical field [0001] The invention relates to the field of medical implant materials, in particular to a porous oral implant and a preparation method thereof. Background technique [0002] At present, the vast majority of commercial implants on the market are made of pure titanium (Ti) or TC4 (Ti6Al4V). Although Ti and Ti6Al4V have good biocompatibility, they still have their own problems: their bone The binding performance is not high, the corrosion resistance is not good, and the elastic modulus is high, and Ti6Al4V contains Al and V, which are cytotoxic elements. Al and V may dissolve into free monomers and enter the body fluid after long-term embedding in the human body, thus causing damage to organisms. body poisoning. In order to solve the above problems, scholars have done a lot of research on the surface modification of Ti or Ti6Al4V implants. However, these methods failed to change the composition of elements and could not essentially solve the defects of Ti or T...

Claims

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Application Information

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IPC IPC(8): A61L27/56A61L27/06A61L27/32A61L27/30A61C8/00
CPCA61C8/0025A61C8/0037A61L27/06A61L27/306A61L27/32A61L27/56A61L2400/18A61L2420/02A61L2420/04A61L2430/12
Inventor 罗骏思吴振寰戴煜谢晓莉杨建文郑璇
Owner ADVANCED FOR MATERIALS & EQUIP
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