Method for preparing graphene reinforced bionic tooth material with 3D laser printing

A 3D printing, graphene technology, applied in the fields of additive processing, tissue regeneration, medical science, etc., can solve the comfort, complexity of biocompatible denture impression manufacturing process, denture cost reduction and improvement of oral clinical treatment effect , many preparation steps and other problems, to achieve the effect of improving biocompatibility, excellent mechanical properties, and improving planting efficiency

Inactive Publication Date: 2017-05-17
GUANGZHOU FENGSHANG ELECTRIC APPLIANCE
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing graphene-enhanced bionic tooth materials by laser 3D printing, which overcomes the complicated preparation steps, and the denture materials used are single, and it is often difficult to take into account the wear resistance and reliability of the dentures used. Processability, comfort of the human body, biocompatibility and the complexity of the denture impression manufacturing process restrict the cost reduction of denture manufacturing and the improvement of oral clinical treatment effect

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Laser 3D printing of embodiment 1 prepares the method for graphene reinforced bionic tooth material, it comprises the steps:

[0018] (1) Preparation of new bionic tooth matrix material: commercially available polymethyl methacrylate powder was used as the main material of bionic tooth, and lithium silicate, glass ceramics, germanium dioxide, corundum, lithium silicate and ox bone powder were added, After being ground by a ball mill until the particle size of the powder is less than 100um, the temperature is raised to 800°C, kept for 0.9h, and cooled to 80°C to form a new bionic tooth base material. Among them, lithium silicate, glass ceramics, germanium dioxide, corundum, lithium silicate, and calf bone powder are added in proportions of 20%, 20%, 12%, 6%, 8%, and 3%.

[0019] (2) Preparation of bionic tooth composite material: Mix the new bionic tooth base material with graphene oxide at a ratio of 50:1, add deionized water at a volume ratio of 2:1, grind and mix even...

Embodiment 2

[0023] Laser 3D printing of embodiment 2 prepares the method for graphene reinforced bionic tooth material, it comprises the steps:

[0024] (1) Preparation of new bionic tooth matrix material: commercially available polymethyl methacrylate powder was used as the main material of bionic tooth, and lithium silicate, glass ceramics, germanium dioxide, corundum, lithium silicate and ox bone powder were added, After being ground by a ball mill until the particle size of the powder is less than 100um, the temperature is raised to 1000°C, kept for 1.5h, and cooled to 70°C to form a new bionic tooth base material. Among them, lithium silicate, glass ceramics, germanium dioxide, corundum, lithium silicate, and calf bone powder are added in proportions of 30%, 18%, 10%, 6%, 12%, and 1%.

[0025] (2) Preparation of bionic tooth composite material: Mix the new bionic tooth base material with graphene oxide at a ratio of 70:1, add deionized water at a volume ratio of 2.5:1, grind and mix ...

Embodiment 3

[0029] The laser 3D printing of embodiment 3 prepares the method for graphene reinforced bionic tooth material, it comprises the steps:

[0030] (1) Preparation of new bionic tooth matrix material: commercially available polymethyl methacrylate powder was used as the main material of bionic tooth, and lithium silicate, glass ceramics, germanium dioxide, corundum, lithium silicate and ox bone powder were added, Grind with a ball mill until the particle size of the powder is less than 100um, heat up to 1200°C, keep it for 1 hour, and cool to 75°C to form a new bionic tooth base material. Among them, lithium silicate, glass ceramics, germanium dioxide, corundum, lithium silicate, and calf bone powder are added in proportions of 35%, 15%, 12%, 9%, 5%, and 2%.

[0031] (2) Preparation of bionic tooth composite materials: Mix the new bionic tooth base material with graphene oxide at a ratio of 80:1, add deionized water at a volume ratio of 2.3:1, grind and mix evenly, dry for 45 min...

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Abstract

The invention discloses a method for preparing a graphene reinforced bionic tooth material with 3D laser printing. A high-quality denture with excellent mechanical property, low friction characteristic and good biocompatibility is obtained by combining a bionic tooth substrate material, a graphene material, a 3D laser printing technology and a laser glazing technology.

Description

technical field [0001] The invention relates to the field of tooth preparation, in particular to a method for preparing graphene-enhanced bionic tooth materials by laser 3D printing. Background technique [0002] In the process of oral clinical application, conventional denture materials, such as heat-cured polymethyl methacrylate (PMMA) materials, are relatively stable in the oral environment because of their simple operation, easy polishing and repair, and good biocompatibility. High stability and other advantages have become the most widely used denture material. But often this type of material has low hardness, which can easily cause part of the denture to break, which has become a common reason for restoration failure. [0003] Graphene is a new type of material with a two-dimensional sheet-like single-layer structure composed of carbon atoms, in which the carbon atoms are represented by sp 2 The hybrid orbitals form a hexagonal honeycomb structure, which has excellen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/44A61L27/36A61L27/56B33Y10/00B33Y80/00
CPCA61L27/446A61L27/3608A61L27/443A61L27/56A61L2430/12B33Y10/00B33Y80/00C08L33/12
Inventor 楚双印张文娟尹宗杰李芳
Owner GUANGZHOU FENGSHANG ELECTRIC APPLIANCE
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