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Surface coating method of zirconia ceramic implant material and application thereof

A zirconia ceramic and surface coating technology, applied in the field of surface treatment of implant materials, can solve the problems of easy falling off of micron-scale coatings, achieve good biological activity and osteogenic performance, improve biological characteristics, and improve biological activity The effect of the agent on osteogenic properties

Active Publication Date: 2021-11-12
PEKING UNIV SCHOOL OF STOMATOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The coating method provided by the present invention can make the coating and the base zirconia ceramic material tightly bonded, which solves the problem that the current micron coating is easy to fall off; and the coating material and thickness can be adjusted according to different clinical needs, and the implant material can be given Different functions, such as increasing bioactivity and promoting osteogenesis, increasing adhesive properties or wear resistance, etc., solve various clinical problems of zirconia ceramic implants; moreover, the method is relatively simple, easy to control, and suitable for large-scale products chemical production

Method used

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  • Surface coating method of zirconia ceramic implant material and application thereof
  • Surface coating method of zirconia ceramic implant material and application thereof
  • Surface coating method of zirconia ceramic implant material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a preparation method for forming a metal oxide film on the surface of a zirconia ceramic substrate by ALD technology. The reaction principle is as follows: figure 1 shown, including the following steps:

[0057] (1) Introduce the precursor A tetradimethylaminotitanium into the reaction chamber, and perform the first surface reaction with the reaction sites on the zirconia ceramic substrate;

[0058] (2) purging with an inert gas to remove unreacted precursor A and volatile by-product dimethylamine in the reaction chamber;

[0059] (3) Precursor B water is introduced into the reaction chamber, and the second surface reaction is carried out with the site after the surface reaction in step (1), at this time, the surface is converted back to the initial surface with the same reaction site;

[0060] (4) purging with inert gas again, that is, completing a cycle process, depositing a titanium oxide film;

[0061] (5) Repeat the above steps (1)-(4), u...

Embodiment 2

[0073] This embodiment provides a method for preparing a functional gradient coating that forms a titanium oxide film layer-magnesia film layer on the surface of a zirconia ceramic substrate by ALD technology, and the steps are as follows:

[0074] Steps (1)-(6) are the same as in Example 1;

[0075] Step (7) introduces the corresponding precursor, and repeats steps (1)-(4) to obtain a magnesium oxide film with a target thickness;

[0076] In step (8), the obtained implant material is heated and tempered to obtain a magnesium oxide film with an amorphous structure.

[0077] The obtained implant material was tested, and the test results of its biological activity, osteogenic performance, bonding performance and wear resistance were comparable to those of Example 1.

Embodiment 3

[0079] This embodiment provides a method for preparing a functional gradient coating that forms a titanium oxide film layer-magnesia film layer on the surface of a zirconia ceramic substrate by ALD technology, and the steps are as follows:

[0080] Steps (1)-(6) are the same as in Example 1;

[0081] Step (7) introduces the corresponding precursor, and repeats steps (1)-(4) to obtain a silicon oxide film with a target thickness;

[0082] In step (8), the implant material obtained in step (7) is heated and tempered to obtain a silicon oxide film with an amorphous structure.

[0083] Step (9) introduces the corresponding precursor, and repeats steps (1)-(4) to obtain a magnesium oxide film with a target thickness;

[0084] In step (10), the obtained implant material is heated and tempered to obtain a magnesium oxide film with an amorphous structure.

[0085] The obtained implant material was tested, and the test results of its biological activity, osteogenic performance, bondi...

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Abstract

The invention relates to the technical field of surface treatment of implant materials, in particular to a surface coating method of a zirconia ceramic implant material and application thereof. According to the surface coating method of the zirconia ceramic implant material, a metal oxide film is formed on the surface of a zirconia ceramic substrate by using an atomic layer deposition technology. According to medical requirements, an atomic layer deposition technology is applied to preparation of a functional surface of a zirconia ceramic implant material for the first time, so that a metal oxide is plated on the surface of the zirconia ceramic material layer by layer in the form of a monatomic film based on the surface chemical characteristic of self-limited growth of the zirconia ceramic implant material under a medium and low temperature condition (less than 500 DEG C), a metal oxide film which is uniform and compact, controllable in thickness, adjustable in components and nanoscale in film thickness is obtained, construction of a functional surface of a zirconium oxide implant is achieved, and different biological functions are achieved.

Description

technical field [0001] The invention relates to the technical field of surface treatment of implant materials, in particular to a surface coating method and application of zirconia ceramic implant materials. Background technique [0002] Compared with traditional titanium and titanium alloy implant materials, zirconia ceramic implant materials have superior aesthetic properties, better biocompatibility, lower risk of peri-implantitis, good mechanical properties, and have huge applications potential. However, zirconia, like titanium metal, is a biologically inert material, and its surface needs to be activated to make it have good biological activity and osteogenic properties. [0003] At present, the surface activation treatment of zirconia surface mostly follows the surface roughening treatment of titanium implant materials, such as sandblasting and acid etching to improve the surface roughness. However, compared with metal materials, zirconia ceramics, as a non-metallic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/87A61L27/04A61L27/30A61L27/50A61L27/54C04B35/14C04B35/46C04B35/04C04B35/622
CPCC04B41/5041C04B41/5029C04B41/5035C04B41/87C04B41/009C04B35/14C04B35/46C04B35/04C04B35/62222A61L27/047A61L27/306A61L27/50A61L27/54A61L2400/18A61L2420/02A61L2420/08A61L2430/12C04B35/48
Inventor 韩建民李楠郭传瑸
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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