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Clinical barium titanate modified zirconia ceramic material

A technology of zirconia ceramics and barium titanate, which is applied in the field of barium titanate modified zirconia ceramic materials and its preparation, can solve problems such as poor osseointegration effects, achieve increased porosity, improved expression level, and good osteogenesis performance effect

Active Publication Date: 2021-08-06
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problem of poor osseointegration effect of existing 3Y-TZP ceramic implant materials, the present invention considers the method of BT modification for the first time to optimize the existing 3Y-TZP ceramic system to construct a more suitable osseointegration composite ceramic system

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  • Clinical barium titanate modified zirconia ceramic material
  • Clinical barium titanate modified zirconia ceramic material
  • Clinical barium titanate modified zirconia ceramic material

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Embodiment 1

[0047] The raw material powder that this embodiment adopts is 5mol% barium titanate (BT) powder, the tetragonal zirconia polycrystalline ceramic powder (3Y-TZP) of commercialization 3mol% yttria stabilization, wherein the grain size of barium titanate is 1 μm, 3mol % yttria-stabilized tetragonal zirconia polycrystalline ceramic powder has a particle size of 300-500nm.

[0048] The preparation method steps of this embodiment are as follows:

[0049] (1) Preparation of ceramic slurry: mix barium titanate with 3 mol% commercialized yttria-stabilized tetragonal zirconia polycrystalline ceramic powder (3Y-TZP) according to 5 mol% mole percentage to obtain mixed powder, and add the mixed powder to In a water-ethanol (analytical pure) solution, a mixed material is obtained, so that the volume of the raw material powder accounts for 35% of the total volume of the water and the powder, and the ball mill is mixed for 10 hours to obtain a ceramic slurry.

[0050] (2) Biscuit firing and ...

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Abstract

The invention belongs to the technical field of powder metallurgy zirconia material preparation, and particularly relates to a barium titanate modified zirconia ceramic material composite. The ceramic composite material is prepared by doping 5mol% barium titanate powder into 3mol% commercial yttrium oxide-stabilized tetragonal zirconia polycrystalline ceramic powder to obtain 5mol% of BT / 3Y-TZP composite ceramic. The 5mol% BT / 3Y-TZP composite ceramic provided by the invention is detected by a scanning electron microscope to have uniform porosity, and is detected by a water contact angle experiment to have good hydrophilicity. After the material and human osteoblasts (MG63) are co-cultured, it is proved that the material is free of cytotoxicity, meanwhile, the expression level of ALP and related osteoblast genes is obviously improved, and the barium titanate modified zirconia ceramic obtained through the preparation method has good biocompatibility and osteogenesis performance, and can be used for structural ceramics, biological materials, human body implant materials and the like, and large-scale industrial application is facilitated.

Description

technical field [0001] The invention belongs to the technical field of ceramic material preparation, and in particular relates to a barium titanate modified zirconia ceramic material and a preparation method thereof. Background technique [0002] Ceramic materials are widely used in clinical treatment due to their beautiful appearance, good biocompatibility, dimensional stability, high strength, corrosion resistance, and wear resistance. In particular, zirconia ceramics with added stabilizers have become an important choice for oral restoration materials such as crown restoration of implants and natural teeth, inlay restoration of tooth defects, and fiber posts. Now clinical use is mainly 3mol% yttrium oxide stabilized Tetragonal zirconia polycrystalline ceramics (3Y-TZP). Although zirconia ceramics have good physical, chemical and biological properties, their properties as part of implants still need to be further improved. [0003] Osseointegration refers to the formatio...

Claims

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Application Information

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IPC IPC(8): C04B35/49C04B35/622C04B35/63
CPCC04B35/49C04B35/622C04B35/6303C04B2235/3225C04B2235/5436C04B2235/5445C04B2235/5427C04B2235/602C04B2235/656C04B2235/6562C04B2235/6567C04B2235/77
Inventor 李专李文杰陈珺
Owner CENT SOUTH UNIV
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