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Method for preparing fluorine-contained photo-curing nano compound resin dental materials

A nano-composite, resin tooth technology, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of overall toughness and wear resistance of composite resins, unstable fluorine release from inorganic fluoride salts, etc., and achieve stable release. Effect

Active Publication Date: 2010-05-12
江苏南田工机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of unstable release of fluorine from inorganic fluorine salts in the existing fluorine-doped composite resins for caries filling, and the impact on the composite resins caused by the naked doping of inorganic fluorine salts. In order to solve the problem of reducing the overall strength, toughness and wear resistance, a new preparation method of fluorine-doped composite resin for caries filling is developed to help prevent secondary caries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 10.00 grams of the fluorine-loaded mesoporous silica microspheres, and 50.00 grams of barium-strontium-boron glass powder, and 40.00 grams of boron-aluminum glass powder, and uniformly mix the above three components by mechanical stirring to prepare Become the nanometer inorganic powder that total weight is 100.00 grams and contain multiple components, for subsequent use.

[0044] 2.50 grams of medical-grade silane coupling agent KH-570 were hydrolyzed under the action of acetic acid, and 40 milliliters of hydroalcoholic solution was added. The pre-mixed nano-inorganic powder containing multiple components is dispersed in ultrasonic waves, and then reacted at 50°C for 24 hours, moved to an oven, and dried at 80°C for 10 hours, then, use the water alcohol The solution was washed, then dried at 100° C. for 10 hours, dried, and pulverized to make modified nano-inorganic powders for future use, and the reserve amount was slightly greater than the required amount.

[...

Embodiment 2

[0047] Weighing 80.00 grams of the fluorine-loaded mesoporous silica microspheres, 15.00 grams of barium strontium boron glass powder, and 5.00 grams of nano-hydroxyapatite, and uniformly mixing the above three components by mechanical stirring, Make the nanometer inorganic powder that total weight is 100.00 grams and contain multiple components, standby.

[0048] 2.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, and 400 milliliters of hydroalcoholic solution was added. The premixed nano-inorganic powder containing multiple components is dispersed in ultrasonic waves, then reacted at 100°C for 2 hours, moved to an oven, and dried at 80°C for 2 hours, then, use the water alcohol The solution is washed, then dried at 80°C for 2 hours, and then heated to 100°C for 5 hours. After drying, it is pulverized to make a modified nano-inorganic powder, which is used for future use. The reserve amount is slightly larger than the requi...

Embodiment 3

[0051] Weigh 45.00 grams of the fluorine-loaded mesoporous silica microspheres, and 25.00 grams of barium strontium boron glass powder, and 10.00 grams of nano-hydroxyapatite, and 5.00 grams of strontium glass powder, and 5.00 grams of boron aluminum Glass powder, and 10.00 grams of commercially available barium-aluminum glass powder, the above-mentioned multiple components are uniformly mixed by means of mechanical stirring, and a total weight of 100.00 grams of nano-inorganic powder containing multiple components is prepared for future use.

[0052]10.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, and 200 milliliters of hydroalcoholic solution was added. The premixed nano-inorganic powder containing multiple components is dispersed in ultrasonic waves, then reacted at 100°C for 2 hours, moved to an oven, and dried at 80°C for 2 hours, then, use the water alcohol The solution was washed, then dried at 80°C for 12 hours, ...

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PUM

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Abstract

The invention relates to a method for preparing fluorine-contained photo-curing nano compound resin dental materials, belonging to the field of medical and dental preparations. The traditional fluorine-contained anti-secondary caries compound resin caries-filling materials have the problems of excessive fluorine release speed, poor interface compatibility and no rigid support for caries-filling bodies, and the scheme aims at solving the problems. The method comprises the following steps of: carrying out surface modification on nano inorganic powder with silane coupling agents, uniformly mixing the modified nano inorganic powder, a bisphenol A glycidyl methacrylate monomer, a triethylene-glycol dimethacrylate diluting agent, a camphorquinone evocating agent, a dimethylaminoethyl methacrylate coinitiator and other materials under the dark condition, and defoaming in vacuum. The point is as follows: the nano inorganic powder contains fluorine-carrying mesoporous silicon dioxide microspheres accounting for 10-80 percent of the self weight. The microspheres have the functions of slowly releasing fluorine to prevent secondary caries and reinforcing structure.

Description

technical field [0001] The invention relates to a preparation method of a fluorine-containing photocurable nanocomposite resin dental material, which belongs to the field of A61K medical and dental preparations. Background technique [0002] Nanocomposite resin is a dental caries filling material that is gradually popular in clinical practice. Nano-composite resins for caries filling can be roughly divided into two types: single-paste nano-composite resins and double-paste nano-composite resins. The curing process is accompanied by a certain volume shrinkage. Therefore, no matter what kind of nanocomposite resin is used for caries filling, micro-cracks are likely to occur on the edge of caries-filled fillings, which will cause edge micro-leakage, and then lead to Secondary caries. Many studies have shown that if the cavity filling material has the ability to release fluoride ions, the secondary caries at the edge of the cavity filling will be significantly reduced, because...

Claims

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Application Information

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IPC IPC(8): A61K6/083A61K6/027A61P1/02
Inventor 李榕生李榕卿
Owner 江苏南田工机有限公司
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