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Resin-permeated silicate composite material and preparation and application thereof

A composite material, resin infiltration technology, applied in the direction of dental preparations, dental prostheses, compression mold cups, etc., can solve the problem of transparency to be improved, and achieve the effect of facilitating large-scale production, simplifying the preparation process, and high efficiency

Inactive Publication Date: 2018-08-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color of Vita Enamic and Lava Ultimate is close to that of natural teeth, but their transparency needs to be improved

Method used

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  • Resin-permeated silicate composite material and preparation and application thereof
  • Resin-permeated silicate composite material and preparation and application thereof
  • Resin-permeated silicate composite material and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Weigh 20g of sodium aluminum silicate, mix it with deionized water, and stir for 2h. Inject the mixed solid-liquid mixture into a gypsum mold for grouting molding, let it stand for 2 hours, remove part of the water, take out the molded green body, and let it dry naturally to obtain a dried green body. The dried green body was sintered at a temperature of 700 °C, the heating rate was 5 °C / min, and the holding time was 1 min to prepare a porous ceramic block (its microstructure is as follows: figure 1 and figure 2 shown). Mix bisphenol A diglycidyl methacrylate with triethylene glycol dimethacrylate in a mass ratio of 1:1, stir for 2 hours, and mix 2wt% (based on bisphenol A diglycidyl methacrylate The total mass of ester and tetraethylene glycol dimethacrylate) of benzoyl peroxide was added to the above mixture and continued to stir for 2h. Inject the resin mixture into the mold, place the above-mentioned porous ceramic block (i.e. porous sodium aluminum silicate blo...

Embodiment 2

[0060] Weigh 20g of sodium aluminum silicate, mix it with deionized water, and stir for 2h. Inject the mixed solid-liquid mixture into a gypsum mold for grouting molding, let it stand for 2 hours, remove part of the water, take out the molded green body, and let it dry naturally to obtain a dried green body. The dried green body was sintered at a temperature of 750° C., the heating rate was 5° C. / min, and the holding time was 1 min to prepare a porous ceramic block. Mix bisphenol A diglycidyl methacrylate with triethylene glycol dimethacrylate in a mass ratio of 1:1, stir for 2 hours, and mix 2wt% (based on bisphenol A diglycidyl methacrylate The total mass of ester and tetraethylene glycol dimethacrylate) of benzoyl peroxide was added to the above mixture and continued to stir for 2h. Inject the resin mixture into the mold, place the above-mentioned porous ceramic block (i.e. porous sodium aluminum silicate block) in it, place it in a vacuum environment, use vacuum capillary...

Embodiment 3

[0064] Weigh 20g of sodium aluminum silicate, mix it with deionized water, and stir for 2h. Inject the mixed solid-liquid mixture into a gypsum mold for grouting molding, let it stand for 2 hours, remove part of the water, take out the molded green body, and let it dry naturally to obtain a dried green body. The dried green body was sintered at a temperature of 800° C., the heating rate was 5° C. / min, and the holding time was 1 min to prepare a porous ceramic block. Mix bisphenol A diglycidyl methacrylate with triethylene glycol dimethacrylate in a mass ratio of 1:1, stir for 2 hours, and mix 2wt% (based on bisphenol A diglycidyl methacrylate The total mass of ester and tetraethylene glycol dimethacrylate) of benzoyl peroxide was added to the above mixture and continued to stir for 2h. Inject the resin mixture into the mold, place the above-mentioned porous ceramic block (i.e. porous sodium aluminum silicate block) in it, place it in a vacuum environment, use vacuum capillary...

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Abstract

The invention relates to a resin-permeated silicate composite material. The material is obtained through a curing reaction of components comprising resin and glass phase silicate under the presence ofa curing agent, wherein the mass ratio of the resin to glass phase silicate to the curing agent is 1:(1-3):(0.005-0.02). The invention also relates to a preparation method of the resin-permeated silicate composite material, grouting molding is adopted for preparing a porous ceramic block body, and after the resin is permeated into the porous ceramic block body, the composite material of a silicate / resin double network structure is obtained by means of curing. According to the preparation method, the preparation process of a porous silicate ceramic blank body is simplified, the resin-permeatedsilicate composite material prepared by the method effectively combines the advantages of the resin and ceramic and has high mechanical performance and aesthetic performance, great development potential and a broad market prospect in the aspect of dental restoration application.

Description

technical field [0001] The invention belongs to the technical field of composite materials for dental restoration, and in particular relates to a resin-infiltrated silicate composite material for dental restoration and its preparation and application. Background technique [0002] Survey data show that the total number of people suffering from dental caries in my country is about 600 million at present, and about 80% of teenagers suffer from various dental diseases, and each patient involves 2 to 3 teeth on average. With the enhancement of human self-care awareness, the demand for dental restoration is increasing. There is also an increasing demand for restoration of teeth for aesthetic reasons (smile modification) in the population without dental disease. With the improvement of people's living standards, the requirements for the aesthetic performance of dental restoration materials are also getting higher and higher. [0003] The current main repair materials are: metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/083A61K6/02A61K6/00
CPCA61K6/15A61K6/60A61K6/802A61K6/887C08L33/10
Inventor 林元华崔本仓李静南策文李明沈洋
Owner TSINGHUA UNIV
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