A clinically applicable barium titanate modified zirconia ceramic material

A technology of zirconia ceramics and barium titanate, applied in the field of barium titanate modified zirconia ceramic materials and their preparation, can solve problems such as poor osseointegration effect, and achieve increased porosity, good biocompatibility, and good The effect of osteogenic properties

Active Publication Date: 2022-05-27
CENT SOUTH UNIV
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  • 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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  • A clinically applicable barium titanate modified zirconia ceramic material
  • A clinically applicable barium titanate modified zirconia ceramic material
  • A clinically applicable barium titanate modified zirconia ceramic material

Examples

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Embodiment 1

[0047] The raw material powder used in this example is 5mol% barium titanate (BT) powder, commercialized 3mol% yttria-stabilized tetragonal zirconia polycrystalline ceramic powder (3Y-TZP), wherein the particle size of barium titanate is 1μm, 3mol% The particle size of the yttria-stabilized tetragonal zirconia polycrystalline ceramic powder is 300-500 nm.

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

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

[0050] (2) Biscuit firing and sieving: put...

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Abstract

The invention belongs to the technical field of powder metallurgy zirconia material preparation, and in particular relates to a zirconia ceramic material composite modified by barium titanate. In the ceramic composite material, 5 mol% barium titanate powder is doped into commercialized 3 mol% yttria-stabilized tetragonal zirconia polycrystalline ceramic powder to obtain 5 mol% BT / 3Y-TZP composite ceramics. The 5mol% BT / 3Y-TZP composite ceramic provided by the invention has uniform porosity through scanning electron microscope detection, and good hydrophilicity through water contact angle test detection. After the material was co-cultured with human osteoblasts (MG63), it was proved that it had no cytotoxicity, and the expression levels of ALP and related osteoblast genes were significantly improved. The barium titanate-modified zirconia ceramics obtained by this preparation method had a relatively high With good biocompatibility and osteogenic properties, it can be used in structural ceramics, biomaterials and human implant materials, etc., and is convenient for large-scale industrial applications.

Description

technical field [0001] The invention belongs to the technical field of ceramic material preparation, in particular 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 stabilizers have become an important choice for dental implants and natural tooth crown restorations, inlay restorations for dental defects, fiber posts and other oral restoration materials. Currently, 3mol% yttrium oxide stabilized in clinical use is mainly used. Tetragonal zirconia polycrystalline ceramic (3Y-TZP). Although zirconia ceramics have good physical and chemical properties and biological properties, their properties as part of implants still need to be further improved. [0003] Osseointegration refer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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