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High-strength antibacterial composite resin for dental restoration and preparation method thereof

A composite resin and dental technology, applied in dental preparations, dentistry, dental prosthesis, etc., can solve problems such as stress fracture, secondary caries, etc., and achieve the effect of mild conditions, high biological safety, and simple process equipment

Active Publication Date: 2020-05-08
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of stress fracture and secondary caries in the service process of the composite resin, the present invention provides a high-strength antibacterial composite resin for dental restoration and a preparation method thereof. In the method, the inorganic filler can be prepared by a one-step reaction method. In the preparation process No toxic ingredients are introduced, high safety, the antibacterial agent is evenly dispersed in the material, and the content is easy to control. The obtained composite resin has excellent antibacterial and mechanical properties and good long-term stability

Method used

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  • High-strength antibacterial composite resin for dental restoration and preparation method thereof
  • High-strength antibacterial composite resin for dental restoration and preparation method thereof
  • High-strength antibacterial composite resin for dental restoration and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: The components of the composite resin and the mass percentages of each component are: Bis-GMA 44.25%, TEGDMA 44.25%, CQ 1%, 4-EDMAB 0.5%, zinc-doped mesoporous silica pellets 10 %.

[0019] Preparation of zinc-doped silica pellets: 0.72 g CTAB, 1.2 g NH 4 F was added to 200 mL of deionized water in turn, and magnetically stirred in a constant temperature water bath at 80 °C for 1 h, 2 g of absolute ethanol, 1 g of Zn(NO 3 ) 2 ·6H 2 After O and 3.5 g TEOS were mixed evenly, they were added dropwise to the aqueous solution, and after magnetic stirring for 4 h, the precipitate obtained from the reaction was centrifuged, washed with deionized water and ethanol for 3 times, dried, and placed in a muffle furnace at 600 Calcined at ℃ for 6 h to obtain zinc-doped nanometer mesoporous silica powder.

[0020] Preparation of composite resin: Mix 4.425 g Bis-GMA, 4.425 g TEGDMA, 0.1 g CQ, 0.05 g 4-EDMAB and 1 g of zinc-doped mesoporous silica nanospheres evenly, put ...

Embodiment 2

[0022] Example 2: The components of the composite resin and the mass percentages of each component are: Bis-GMA 34%, TEGDMA 34%, CQ 1%, 4-EDMAB 1%, zinc-doped mesoporous silica pellets 15% .

[0023] Preparation of zinc-doped silica pellets: 0.72 g CTAB, 1.2 g NH 4 F was added to 200 mL of deionized water in turn, and magnetically stirred in a constant temperature water bath at 60 °C for 1 h, 2 g of absolute ethanol, 1 g of Zn(NO 3 ) 2 ·6H 2 After O and 6 gTEOS were mixed evenly, they were added dropwise to the aqueous solution, and after magnetic stirring for 4 h, the precipitate obtained in the reaction was centrifuged, washed with deionized water and ethanol for 3 times, dried, and placed in a muffle furnace at 600 Calcined at ℃ for 6 h to obtain zinc-doped nanometer mesoporous silica powder.

[0024] Preparation of composite resin: Mix 3.4 g Bis-GMA, 3.4 g TEGDMA, 0.1 g CQ, 0.1 g 4-EDMAB, and 1.5 g zinc-doped mesoporous silica nanospheres evenly, put them into a silico...

Embodiment 3

[0026] Example 3: The components of the composite resin and the mass percentages of each component are: Bis-GMA 40%, TEGDMA 23%, CQ 1%, 4-EDMAB 1%, zinc-doped mesoporous silica pellets 30% .

[0027] Preparation of zinc-doped silica pellets: 0.72 g CTAB, 1.2 g NH 4 F was added to 200 mL of deionized water in turn, and magnetically stirred in a constant temperature water bath at 40 °C for 1 h, 2 g of absolute ethanol, 0.5 g of Zn(NO 3 ) 2 ·6H 2 After O and 5 gTEOS were mixed evenly, they were added dropwise to the aqueous solution, and after magnetic stirring for 4 h, the precipitate obtained from the reaction was centrifuged, washed with deionized water and ethanol for 3 times, dried, and placed in a muffle furnace at 600 Calcined at ℃ for 6 h to obtain zinc-doped nanometer mesoporous silica powder.

[0028] Preparation of composite resin: Mix 4.0 g Bis-GMA, 2.3 g TEGDMA, 0.1 g CQ, 0.1 g 4-EDMAB, and 3 g zinc-doped mesoporous silica nanospheres evenly, put them into a sili...

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Abstract

The invention belongs to the technical field of modification of dental resin materials, and provides high-strength antibacterial composite resin for dental restoration and a preparation method thereoffor solving the problems of stress fracture and secondary caries during the service of composite resin. The composite resin consists of inorganic filler and a resin matrix by adding an initiator, andthe inorganic filler is zinc-doped mesoporous silica beads; the resin matrix consists of a main monomer bisphenol A-glycidyl methacrylate and a diluents triethylene glycol dimethacrylate; and the initiator consists of a main initiator camphorquinone and an auxiliary initiator ethyl 4-N,N-dimethylaminobenzoate. The antibacterial properties of dental resin can be given by utilizing a mesoporous material to antibacterial components; the mechanical strength of the dental resin can be enhanced through the mechanical interlocking at the interface part of the mesoporous channels of the inorganic filler and the dental resin; the inorganic filler is non-toxic in components and high in safety; and the used inorganic filler can be prepared through a one-step reaction method, so that the composite resin and preparation method thereof are simple and easy in operate and very easy to promote.

Description

technical field [0001] The invention belongs to the technical field of modification of dental resin materials, and in particular relates to a high-strength antibacterial composite resin for dental restoration and a preparation method thereof. Background technique [0002] Caries is an oral disease with a very high incidence rate, which is manifested in the demineralization of inorganic matter and decomposition of organic matter in teeth, and finally forms a disease of caries. The treatment of dental caries requires the use of appropriate materials for filling and repairing. Since it was invented in the 1960s, light-curing resin dental filling materials have developed rapidly due to their good aesthetics, safety, non-toxicity, and ease of use, and have become one of the essential materials in dental restorations. one. Composite resins for dental restoration are usually composed of resin matrix and inorganic fillers. Inorganic fillers can not only enhance the mechanical stre...

Claims

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Application Information

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IPC IPC(8): A61K6/76A61K6/71A61K6/887A61K6/15
Inventor 王月月白星星姚晓红
Owner TAIYUAN UNIV OF TECH
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