A kind of preparation method of low volume shrinkage, antibacterial dental resin composite material

A technology of resin composite materials and volume shrinkage, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of affecting antibacterial effect and material application orientation, shortening the effective period of antibacterial materials, and fast release speed, etc.

Active Publication Date: 2017-10-10
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, using silver ions as the silver source will have the problem of too fast release speed, which will greatly shorten the validity period of the antibacterial material and affect the antibacterial effect and application orientation of the material.
Secondly, it is difficult to uniformly disperse the silver source in dental materials by using inorganic substances as the silver source loading material, and at the same time, it will weaken the interaction force between the inorganic / resin material and affect the final performance of the material

Method used

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  • A kind of preparation method of low volume shrinkage, antibacterial dental resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step (1). Dissolve 5g of bisphenol M glycidyl methacrylate in a mixture of 19g of bisphenol A glycidyl methacrylate and 76g of triethylene glycol dimethacrylate to obtain 100g of bisphenol M methyl A bisphenol monomer solution with a glycidyl acrylate mass content of 5%; get 49g of this bisphenol monomer solution and mix and stir with 1g 2-acrylic acid-2-(phosphonooxy)ethyl ester to obtain a 50g dental resin solution;

[0026] Step (2). 499g silver cyclohexylbutyrate is dissolved in the above-mentioned 1g dental resin solution to obtain 500g dental resin solution mixed with silver source compound;

[0027] Step (3). Mix 99.8g of dental resin solution mixed with silver source compound and 0.2g of photoinitiator Yanjiagu 1173, stir and mix evenly at 60°C to obtain a mixed solution of photoactive monomers;

[0028] Step (4). Take 30g of the photoactive monomer mixed solution obtained in the above step (3) and mix it with 70g of silicon dioxide to obtain a dental resin prep...

Embodiment 2

[0031] Step (1). Dissolve 95g of bisphenol Z glycidyl methacrylate in a mixture of 4g of bisphenol A glycidyl methacrylate and 1g of triethylene glycol dimethacrylate to obtain 100g of bisphenol Z methyl Glycidyl acrylate mass content is the bisphenol monomer solution of 95%; Get this bisphenol monomer solution of 40g and 10g 2-methyl-2-acrylic acid-2-(phosphonooxy) ethyl ester mix, stir, obtain 50 g dental resin solution;

[0032] Step (2). Dissolve 90g silver 2-ethylhexanoate in the above-mentioned 10g dental resin solution to obtain 100g dental resin solution mixed with silver source compound;

[0033] Step (3). Mix 98g of dental resin solution mixed with silver source compound and 2g of photoinitiator Yanjiagu 184, stir and mix evenly at 80°C to obtain 100g of photoactive monomer mixed solution;

[0034] Step (4). Take 20g of the photoactive monomer mixed solution obtained in the above step (3) and mix it with 80g of zirconia to obtain a dental resin prepolymer;

[0035]...

Embodiment 3

[0037] Step (1). Dissolve 10g of bisphenol AP glycidyl methacrylate in a mixture of 50g of bisphenol A glycidyl methacrylate and 40g of triethylene glycol dimethacrylate to obtain 100g of bisphenol AP methyl A bisphenol monomer solution with a glycidyl acrylate mass content of 10%; get 45g of this bisphenol monomer solution and mix and stir with 1g 2-acrylic acid-2-(phosphonooxy)ethyl ester to obtain a 50g dental resin solution;

[0038] Step (2). 400g silver lactate is dissolved in the above-mentioned 1g dental resin solution to obtain a dental resin solution mixed with silver source compounds;

[0039] Step (3). Mix 99.5 g of dental resin solution mixed with silver source compound and 0.5 g of photoinitiator Yanjiagu 2959, stir and mix evenly at 62° C. to obtain a mixed solution of photoactive monomers;

[0040] Step (4). Take 28g of the photoactive monomer mixed solution obtained in the above step (3) and mix it with 72g of calcium phosphate to obtain a dental resin prepoly...

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Abstract

The invention discloses a preparation method of a low-volume-shrinkage antibacterial dental resin composite material. The preparation method comprises the following steps: mixing and stirring bifunctional acrylate resin and phosphoryl-containing acrylate resin to obtain a dental resin solution; adding a silver source compound, and mixing uniformly with a photoinitiator after the silver source compound is dissolved; then adding an inorganic filler; and finally, injecting into a mold, and irradiating by adopting blue light or ultraviolet light. According to the preparation method disclosed by the invention, a bisphenol monomer with rigid radicals is adopted to prepare a dental resin monomer to reduce the volume shrinkage during curing of a material, and bidirectional amphipathic molecules containing phosphonyl and unsaturated double-bond functional groups are used as a surface modifying agent to ensure that on the one hand, the interface action between the resin and the inorganic filler is improved, and on the other hand, by virtue of the complexing action between the phosphonyl functional groups and silver ions, the silver source compound is dissolved, the process of releasing nano silver is controlled, and a long-acting antibacterial effect is achieved, so that a dental filling material which has low volume shrinkage, excellent mechanical property and antibacterial effect is prepared.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and relates to a preparation method of a surface-modified dental resin composite material containing inorganic nanometer antibacterial silver with low volume shrinkage. Background technique [0002] Since the invention of light-cured dental resin materials in the 1960s, this type of material has developed rapidly due to its aesthetics, non-toxicity, and ease of use. However, due to volume shrinkage during the polymerization of dental resins, the incidence of secondary caries in patients is high, and the wear resistance and mechanical strength of polymer resins are limited, which greatly limits the service life of dental resin materials. With the deepening of people's understanding of dental materials, it is particularly important to develop a new type of dental resin material with high wear resistance, high mechanical strength and low volume shrinkage. [0003] Most of the methods rep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/087A61K6/891
Inventor 程亚军姬青朱锦
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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