Resin permeated silicate composite material as well as preparation and application thereof

A composite material and resin infiltration technology, applied in dental preparations, medical science, dentistry, etc., can solve problems such as transparency to be improved, and achieve the effects of easy control of process parameters, simple preparation methods, and broad market prospects

Active Publication Date: 2018-09-28
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 as well as preparation and application thereof
  • Resin permeated silicate composite material as well as preparation and application thereof
  • Resin permeated silicate composite material as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Weigh 20g of sodium aluminum silicate, put it into a ball mill jar, add alcohol and zirconia balls, and mill at a speed of 250r / min for 24 hours. The solid-liquid mixture after ball milling was poured into a container, and dried in an environment of 70°C to collect the powder. The powder was pressed into a green body with a molding machine, the pressure was 3 MPa, and the holding time was 3 minutes, and the green body was completely demolded. Put the pressed green body into the rubber film, use the vacuum pump to draw out the air in the rubber film, and seal it, and use the cold isostatic pressure with a pressure of 220MPa to treat the above green body, and the pressure holding time is 1.5min. The green body after cold isostatic pressing was taken out and sintered at 550°C with a heating rate of 5°C / min and a holding time of 1min to obtain a partially sintered porous ceramic block. Mix bisphenol A diglycidyl methacrylate with triethylene glycol dimethacrylate in a mass...

Embodiment 2

[0070] The preparation method of the resin-infiltrated silicate composite material is the same as in Example 1, except that the sintering temperature is 600°C.

[0071] The mechanical property data of the composite material prepared in this embodiment are shown in Table 1.

Embodiment 3

[0073] The preparation method of the resin-infiltrated silicate composite material is the same as in Example 1, except that the sintering temperature is 650°C.

[0074] The mechanical property data of the composite material prepared in this embodiment are shown in Table 1.

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Abstract

The invention relates to a resin permeated silicate composite material. The composite material is formed through a curing reaction between resin and glass phase silicate components in the presence ofa curing agent, wherein the resin comprises bisphenol A diglycidyl methacrylate and tetraglycol dimethacrylate. The invention further relates to a preparation method of the resin permeated silicate composite material. The method comprises the following steps: preparing a porous ceramic block body by controlling the sintering temperature and the heat preservation time, then enabling the resin to permeate into the porous ceramic block body under the vacuum capillary action, and forming a silicate / resin dual-network structure through curing. The composite material has relatively high mechanical property and aesthetic property, and has huge developing potential and wide market prospects in terms of dental repair 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 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 alloy, all-ceramic, cer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/083A61K6/027
CPCA61K6/831A61K6/887C08L33/14C08L35/02
Inventor 林元华崔本仓李静南策文李明沈洋
Owner TSINGHUA UNIV
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