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Dental filling composite resin with silica nanofiber as filler and preparation method thereof

A technology of nanofibers and silica, applied in dental preparations, dentistry, medical science, etc., can solve problems such as unsatisfactory mechanical properties of composite resins, and achieve excellent physical and mechanical properties, easy access to raw materials, and good wear resistance.

Inactive Publication Date: 2017-04-05
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Technical problem to be solved: Aiming at the unsatisfactory mechanical properties of the composite resin, the present invention provides a dental filling composite resin with silica nanofibers as filler and its preparation method, using silica nanofibers as the filler, and using The silane coupling agent makes it effectively combined with the resin, improving the mechanical properties, wear resistance and wet environment stability of the composite resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The components of the composite resin and the mass percentage of each component are: Bis-GMA 18%, TEGDMA 6%, CQ 0.5%, 4-EDMAB 0.5%, and silica nanofiber 75%.

[0018] The specific preparation steps of the composite resin are as follows: (1) 40 mL of absolute ethanol, 40 mL of tetraethyl orthosilicate and 4 mL of deionized water were added to 10.8 g of polyvinylpyrrolidone, and the spinning precursor solution was obtained after mechanical stirring for 3 hours. The precursor solution was injected into the electrospinning device for electrospinning (voltage 11kV, receiving distance 20cm, injection speed 1.5mL / h) to prepare a nanofiber membrane, and the prepared nanofiber membrane was placed in a tube furnace Calcined at 600°C for 12 hours to obtain silica nanofibers with a diameter of 500 nm; (2) 10 g of silica nanofibers prepared in step (1), 0.2 g of γ-methacryloxypropyltrimethoxysilane and 17.8mL of absolute ethanol were added to the beaker, and stood at 78°C for 5h to ...

Embodiment 2

[0020] The components of the composite resin and the mass percentage of each component are: Bis-GMA 22%, TEGDMA 8.5%, CQ 1%, 4-EDMAB 1%, silica nanofiber 67.5%.

[0021] The specific preparation steps of the composite resin are as follows: (1) 40 mL of absolute ethanol, 40 mL of tetraethyl orthosilicate and 4 mL of deionized water were added to 10.8 g of polyvinylpyrrolidone, and the spinning precursor solution was obtained after mechanical stirring for 3 hours. The precursor solution was injected into the electrospinning device for electrospinning (voltage 11kV, receiving distance 20cm, injection speed 1.5mL / h) to prepare a nanofiber membrane, and the prepared nanofiber membrane was placed in a tube furnace Calcined at 600°C for 12 hours to obtain silica nanofibers with a diameter of 500 nm; (2) 10 g of silica nanofibers prepared in step (1), 0.2 g of γ-methacryloxypropyltrimethoxy Silane and 17.8mL absolute ethanol were added to the beaker, and the modified silica nanofibers...

Embodiment 3

[0023] The components of the composite resin and the mass percentages of each component are: Bis-GMA 19.5%, TEGDMA 4%, CQ 0.75%, 4-EDMAB 0.75%, and silica nanofiber 75%.

[0024] The specific preparation steps of the composite resin are as follows: (1) 40 mL of absolute ethanol, 40 mL of tetraethyl orthosilicate and 4 mL of deionized water were added to 10.8 g of polyvinylpyrrolidone, and the spinning precursor solution was obtained after mechanical stirring for 3 hours. The precursor solution was injected into the electrospinning device for electrospinning (voltage 11kV, receiving distance 20cm, injection speed 1.5mL / h) to prepare a nanofiber membrane, and the prepared nanofiber membrane was placed in a tube furnace Calcined at 600°C for 12 hours to obtain silica nanofibers with a diameter of 500 nm; (2) 10 g of silica nanofibers prepared in step (1), 0.2 g of γ-methacryloxypropyltrimethoxy Silane and 17.8mL of absolute ethanol were added to the beaker, and the modified silic...

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PUM

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Abstract

The invention discloses a dental filling composite resin using a silicon dioxide nano-fiber as a filler. The resin is prepared from the following raw materials in percentage by mass: 18-22 percent of bisphenol A-glycidyl methacrylate, 4-16 percent of triethylene glycol dimethacrylate, 0.5-1 percent of camphorquinone, 0.5-1 percent of ethyl 4-N,N-dimethylaminobenzoate and 60-75 percent of silicon dioxide nano-fiber. The preparation process is simple and easy to operate, the raw materials are easily available at relatively low price, and the prepared composite resin has excellent physical mechanical performance, good abrasion resistance and long service life, has the characteristics of light color, low polymerization shrinkage and the like, and is expected to be used in clinical application.

Description

technical field [0001] The invention relates to a dental filling resin, in particular to a dental filling composite resin with silicon dioxide nanofiber as a filler and a preparation method thereof. Background technique [0002] Since the 1960s, dental filling materials have developed rapidly, especially composite resins, which have been widely used in dental clinics and have shown advantages. It has the advantages of being able to restore the natural shape of teeth, with realistic color and texture, and it perfectly combines the polishing and durability of teeth, and the polishing and durability of use are very good. It has good physical and mechanical properties, compressive and tensile properties and durability, so it can be used in many aspects: padding, pit and fissure sealing, filling of small class III holes and class V holes. [0003] However, the properties of this type of composite resin are still deficient in some aspects, such as low wear resistance and elastic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/083A61K6/027
Inventor 高延敏王丹季燕青代仕梅周超
Owner JIANGSU UNIV OF SCI & TECH
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