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Gradient bionic dental ceramic

A dental ceramic and gradient technology, applied in the field of bionic teeth, can solve problems such as complex process and interlayer fracture of ceramic restorations

Pending Publication Date: 2022-03-22
温州医科大学附属口腔医院
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  • Claims
  • Application Information

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Problems solved by technology

[0009] The process of the above-mentioned patent is relatively complicated, and the difference in the sintering shrinkage ratio between different layers will lead to the problem of interlayer fracture of the ceramic restoration

Method used

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  • Gradient bionic dental ceramic
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  • Gradient bionic dental ceramic

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] like Figure 1-Figure 6 As shown, the present invention discloses a gradient biomimetic dental ceramic, comprising:

[0029] A porous ceramic frame, the porous ceramic frame is a TPMS structure, and the porous ceramic frame is provided with fully connected mesh through holes;

[0030] polymer;

[0031] Wherein, the polymer is filled in the mesh through holes.

[0032] By adopting the above technical scheme, the three-dimensional periodic min...

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Abstract

The present invention relates to a gradient bionic dental ceramic, which comprises: a porous ceramic frame, which is of a TPMS structure, and is internally provided with fully-communicated net-shaped through holes; a polymer; wherein the net-shaped through holes are filled with the polymer. The preparation method has the beneficial effects that the porous ceramic frame with the TPMS structure is printed by adopting a 3D printing technology, the TPMS smooth full-communication porous structure has more excellent mechanical property and permeability, a perfect bonding interface can be formed between a polymer and the porous ceramic frame, and when the ceramic is stressed to generate cracks, the mechanical property of the porous ceramic frame is greatly improved. The polymer filled in the porous structure can prevent crack propagation, greatly improves the fracture toughness of the material, and prevents the material from losing efficacy due to fatigue.

Description

technical field [0001] The invention relates to the technical field of bionic teeth, in particular to gradient bionic dental ceramics. Background technique [0002] With the continuous improvement of people's aesthetic level, the demand for dental aesthetic restoration is increasing day by day, but the commercialized all-ceramic restoration materials can not meet the balance and unity of mechanical and optical properties required by the principle of aesthetic restoration, which has become a constraint to the development of dental aesthetic restoration. bottleneck. At present, the clinically used dental ceramic materials mainly include zirconia, alumina, glass ceramics, etc. [0003] Among them, the flexural strength of zirconia ceramics can reach 600-1200MPa, and the fracture toughness can reach 6-15MPa m 1 / 2 , as a nuclear ceramic material, its excellent mechanical properties are almost impeccable. However, compared with glass ceramics, the light transmittance of zirconi...

Claims

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Application Information

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IPC IPC(8): C03C10/04C03B19/01C03C17/32A61K6/887A61K6/833A61K6/15B33Y70/10
CPCC03C10/0009C03B19/01C03C17/32A61K6/15A61K6/833A61K6/887B33Y70/10C03C2218/111
Inventor 麻健丰林继兴朱莉黄盛斌童先徐一迪刘思文陶继益
Owner 温州医科大学附属口腔医院
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