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3D printing composite material for oral restoration and its preparation and use method

A 3D printing and oral restoration technology, applied in the field of oral restorations, can solve the problems of unsatisfactory industrial applications, limited 3D printing materials, and few types of 3D printing materials

Active Publication Date: 2019-11-05
深圳长朗智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 3D printing technology has not yet achieved large-scale promotion and application. One of the main reasons is that it is limited by 3D printing materials.
At present, the types of 3D printing materials that can be really applied to industrial production are still relatively small, which cannot meet the requirements of industrial applications. It is very important to develop special 3D printing materials suitable for different industrial needs to expand the application field of 3D printing.
At present, most of the existing light-curing 3D printing materials are concentrated in pure resin materials, and are mostly used in entertainment creativity, design and development, model display and other fields that do not have strong requirements for the functionality of printed parts. The 3D printing composite materials developed for processing oral restorations are basically still in a blank state

Method used

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  • 3D printing composite material for oral restoration and its preparation and use method
  • 3D printing composite material for oral restoration and its preparation and use method
  • 3D printing composite material for oral restoration and its preparation and use method

Examples

Experimental program
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Effect test

preparation example Construction

[0070] The preparation method of the above-mentioned 3D printing composite material for dental restoration includes the following:

[0071] Step S110, mixing low-viscosity monomers, reinforcing monomers or oligomers, expanding monomers, polymerizable quaternary ammonium antibacterial monomers, and dispersants to obtain a premix.

[0072] Preferably, the low-viscosity monomer and the reinforcing monomer or oligomer are uniformly mixed before the expansion monomer is mixed and the dispersant and the polymerizable quaternary ammonium salt antibacterial monomer are added.

[0073] Preferably, if the expansion monomer is a mixture of two expansion monomers, mix the two expansion monomers evenly before adding the dispersant and the polymerizable quaternary ammonium salt antibacterial monomer to the resin monomer / oligomer.

[0074] Step S120, adding ceramic powder to the premix and then ball milling to obtain a mixture.

[0075] Preferably, the ceramic powder is gradually added to t...

Embodiment 1

[0087] The preparation of the 3D printing composite material for dental restoration of Example 1 comprises the following steps:

[0088] An electronic balance weighed 10 g of pentaerythritol tetramethacrylate and 10 g of urethane methacrylate oligomer, and mixed and stirred the two resins.

[0089] Measure 20g of spiro-orthocarbonate expansion monomer 3,9-diethyl-3,9-propenyloxymethyl-1,5,7,11-tetraoxaspiraundecane (BAOM), add into the above resin mixture.

[0090] Measure 5 g of the polymerizable quaternary ammonium salt antibacterial monomer methacryloyloxydodecylpyridine bromide (MDPB), and add it to the above mixture.

[0091] Measure 5 g of diethylpolypropoxymethylammonium chloride (VARIQUAT CC-59 from Degussa Company) as a dispersant and add it to the above mixture, and stir properly to obtain a liquid mixture.

[0092] After the spherical zirconia powder is sieved, the required powder is obtained, and the average diameter of the powder particles is 0.3 micron. Measur...

Embodiment 2

[0096] An electronic balance weighed 40 g of urethane dimethacrylate (UDMA) and 10 g of bisphenol A-glycidyl dimethacrylate (bis-GMA), and mixed and stirred the two resins.

[0097] Measure 5g of spirocyclic orthocarbonate expansion monomer 3,9-diethyl-3,9-propenyloxymethyl-1,5,7,11-tetraoxaspiraundecane (BAOM), add into the above resin mixture.

[0098] Measure 5 g of polymerizable quaternary ammonium salt antibacterial monomer methacryloyloxyethyl-n-hexadecyl-dimethylammonium hexafluorophosphate (DMAE-CH), and add it to the above mixture.

[0099] Measure 15 g of polyamide hyperdispersant (SOLSPERSE 32000 from Noveon Company) and add to the above mixture, and stir properly to obtain a liquid mixture.

[0100] After sieving the spherical glass-ceramic powder, the required powder is obtained, and the average diameter of the powder particles is about 0.1 micron. Measure 200g of glass-ceramic powder, gradually add into the above liquid mixture in three batches and stir after e...

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Abstract

The invention relates to a 3D printing composite material for mouth rehabilitation and a preparation and using method of the 3D printing composite material. The 3D printing composite material for mouth rehabilitation is characterized by comprising the following components in parts by weight: 10-40 parts of low-viscosity monomer, 10-40 parts of enhanced monomer or low polymer, 150-200 parts of ceramic powder, 5-20 parts of expansion monomer, 5-15 parts of a dispersing agent, 2-6 parts of a short-wave photoinitiator, 1-3 parts of a long-wave photoinitiator, 1-3 parts of an ultraviolet absorber and 2-5 parts of polymerizable quaternary ammonium salt anti-bacterial monomer. The 3D printing composite material for mouth rehabilitation is small in curing shrinkage, short in curing time and high in anti-bacterial property, and is suitable for manufacturing a dental prosthesis.

Description

technical field [0001] The present invention relates to a light-curing type 3D printing composite material for oral restoration and its preparation and use methods, in particular, the present invention relates to a composite material with low shrinkage, suitable viscosity, high mechanical properties, excellent biocompatibility and antibacterial properties Composite materials, this material is used for 3D printing inlays, veneers, crowns, bridges and other oral restorations. Background technique [0002] Additive manufacturing technology, also known as 3D printing or rapid prototyping, appeared at the end of the last century and is a new manufacturing technology based on the idea of ​​discrete and accumulation molding. This technology breaks through the complexity limit of traditional manufacturing technology, decouples the relationship between complexity, small batch customization and cost, and is called an important tool of the "third industrial revolution". The principle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/083A61K6/09A61K6/02A61K6/00B29C67/00B33Y10/00A61K6/893
CPCA61K6/61A61K6/69A61K6/802A61K6/887A61K6/893B33Y10/00
Inventor 吴涛何奕章赣阳韩加军
Owner 深圳长朗智能科技有限公司
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