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Dental composite resin

A composite resin and resin technology, which is applied in dentistry, medical science, dental preparations, etc., can solve the problems of high price and achieve the effect of low price, good surface polishing performance and consistent light refraction

Inactive Publication Date: 2009-05-20
ADVANCED TECHNOLOGY & MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China, almost all visible light-curable composite filling resin materials are imported, and the price is very expensive

Method used

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Embodiment Construction

[0033] Adopt the chemical constituents of the composite resin of the present invention and the existing preparation method, the existing preparation method is: (1) the method for preparing nano silicon dioxide is the following specific steps: pass into 453ml, 24.72mol / L methanol solution, 653ml, 17.15mol / L absolute ethanol solution and 114g pure ammonia gas, stir for 0.5-1 hour; dissolve 3.4g PEG1000 and 2gPAA2000 in 645ml deionized water, add the aqueous solution of the dispersant to the reaction kettle In the middle, stir at high speed to make the solution mix evenly, slowly add 1000ml, 4.48mol / L Si(OC 2 h 5 ) 4 , Ultrasonic treatment is carried out at the same time as the reaction; the mixed solution is ultrasonically treated at 25°C in an ultrasonic wave with a frequency of 20100KHz for 5~60 minutes; after the reaction is completed, a uniform and stable sol is obtained; after the sol is frozen with liquid nitrogen, vacuum Dry in a low-temperature freeze dryer for 24-48 ...

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Abstract

A composite resin for the dental department is composed of a structural filler (70-80 Wt%) prepared from granular silylated barium aluminum silicate and granular SiO2, and a resin matrix (20-30) prepared from acrylic acid monomers and trigger.

Description

technical field [0001] The invention belongs to the field of dental restoration materials, in particular to a dental composite resin. Background technique [0002] For a long time, people have been looking for a safe and effective restoration material to replace silver amalgam in order to overcome the disadvantages of the traditional dental restoration material - silver amalgam. In the 1960s, Bowen successfully synthesized a resin monomer with special structure and properties—bisphenol A diglycidyl methacrylate, and realized the importance of surface treatment of inorganic fillers. On this basis, various composite resins have developed rapidly. For more than 30 years, its research and application have made great progress, and it has become an indispensable and important material for the restoration of dental defects, and it has a tendency to replace silver amalgam. [0003] Simply put, dental composite resin is a polymer composite resin mainly composed of inorganic fillers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/08A61K6/884
Inventor 周少雄梁新杰李玉宝李德慧孟浩李晓天高振英仇越秀张娓宋文娟王瑶赵军苑洪
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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