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Preparation method of dental material based on photochemical fast reaction mechanism

A fast-response, photochemical technology, applied in dentistry, medical science, dental preparations, etc., to achieve the effect of increasing toughness, improving toughness, and reducing wear speed

Inactive Publication Date: 2010-03-17
中国人民解放军南京军区福州总医院四七六临床部
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to develop a new method for the preparation of dental reinforced resin materials in view of the actual requirements of technical development that the wear resistance and strength and toughness of existing dental composite resins need to be further improved. The improvement of wear resistance must also take into account the positive benefits of the pull-out toughening mechanism for strengthening and toughening

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 10.00 grams of alumina nanotubes, and 50.00 grams of barium strontium boron glass powder, and 40.00 grams of borosilicate glass powder, and mix the above three components uniformly by mechanical stirring to make a total weight of 100.00 grams. Nano-inorganic powder containing multiple components, ready for use; wherein the outer diameter of the alumina nanotubes involved is between 3 nanometers and 10 nanometers, and the length of the alumina nanotubes involved is between 10 nanometers and 200 nanometers between, and the ratio of the length to the outer diameter of the alumina nanotubes is between 3 and 70, and any alumina nanotube material that meets the above limitations can be used.

[0022]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 re...

Embodiment 2

[0025] Weigh 80.00 grams of alumina nanotubes, 15.00 grams of barium strontium boron glass powder, and 5.00 grams of nano-hydroxyapatite, and mix the above three components uniformly by mechanical stirring to make a total weight of 100.00 grams The nano-inorganic powder containing multiple components is ready for use; wherein the outer diameter of the alumina nanotubes involved is between 3 nanometers and 10 nanometers, and the length of the alumina nanotubes involved is between 10 nanometers and 200 nanometers between, and the ratio of the length to outer diameter of the alumina nanotubes involved is between 3 and 70, and any alumina nanotube material that meets the above limitations can be used.

[0026] 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...

Embodiment 3

[0029] Weigh 45.00 grams of alumina nanotubes, 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 The commercially available barium-aluminum glass powder is uniformly mixed with the above multiple components by means of mechanical stirring to make a nano-inorganic powder with a total weight of 100.00 grams containing multiple components for future use; wherein the aluminum oxide nanotubes involved The outer diameter is between 3 nm and 10 nm, and the length of the alumina nanotubes is between 10 nm and 200 nm, and the ratio of the length to the outer diameter of the alumina nanotubes is 3 Between and 70, any alumina nanotube material that satisfies the above limitations can be used.

[0030] 10.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, and 200 milliliters of hydroa...

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Abstract

The invention relates to a preparation method of a dental material based on a photochemical fast reaction mechanism, which relates to the field of dental preparation. The scheme aims at solving the problem that the existing dental material used for filling caries needs to be further improved in the aspects of abrasion resistance and toughness. The method comprises the steps of utilizing silane coupling agent to conduct surface modification to inorganic nano-powder; evenly mixing the modified inorganic nano-powder with bisphenol A glycidyl methacrylate monomer, triethylene-glycol dimethacrylatethinner, camphorquinone photo-initiator and dimethylamino ethyl methacrylate coinitiator and the like under a condition without sunlight; and removing bubbles under a vacuum condition. The key pointof the scheme is as follows: the inorganic nano-powder contains alumina nano-tube which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The alumina nano-tube added in the inorganic nano-powder is beneficial to improving the anchoring force and increasing the toughness due to the feature and toughness thereof.

Description

technical field [0001] The invention relates to a preparation method of a dental material based on a photochemical rapid reaction mechanism, and belongs to the field of A61K medical and dental preparations. Background technique [0002] Among the various dental materials used for cavity restoration, the single-paste light-curing composite resin based on the photochemical fast reaction mechanism has obvious comprehensive advantages in comparison. This emerging composite material is generally accepted, however, further improvement and perfection of this type of material is still very necessary. [0003] Among the components of dental composite resins for dental cavity restoration, the inorganic fillers added to increase strength and wear resistance are mostly amorphous particles, and the particle outline of amorphous particles is roughly approximate to a spherical shape. The role played by the composite resin for restoration is also similar to that of spherical particles. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/02A61K6/033A61K6/083A61K6/838
Inventor 李榕卿
Owner 中国人民解放军南京军区福州总医院四七六临床部
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