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Preparation method of dental reinforced material

A reinforcing material and dental technology, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problem of weak anchoring force of surface inorganic filler particles, and achieve the effect of reducing the wear rate

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 dental composite resin that helps to solve the problem of the weak anchoring force of the surface inorganic filler particles in the existing dental composite resin reinforcement method after the material is cured. Preparation method of resin material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 10.00 grams of columnar mesoporous silica, 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 gram of nano-inorganic powder containing multiple components, for subsequent use; wherein the outer diameter of the columnar mesoporous silica involved is between 100 nanometers and 300 nanometers, and the length of the columnar mesoporous silica involved is between Between 200 nm and 600 nm, and the ratio of length to outer diameter of the columnar mesoporous silica is between 1 and 3, and the mesopore size of the columnar mesoporous silica is between 2 between nanometers and 5 nanometers.

[0021] 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 compone...

Embodiment 2

[0024] Weigh 80.00 grams of columnar mesoporous silica, and 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 of nano-inorganic powders containing multiple components are set aside; the outer diameter of the columnar mesoporous silica involved is between 100 nanometers and 300 nanometers, and the length of the columnar mesoporous silica involved is between 100 and 300 nanometers. Between 200 nanometers and 600 nanometers, and the ratio of the length to the outer diameter of the columnar mesoporous silica is between 1 and 3, and the mesopore size of the columnar mesoporous silica is between Between 2nm and 5nm.

[0025] 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 multip...

Embodiment 3

[0028] Weigh 45.00 grams of columnar mesoporous silica, 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 boroaluminum glass powder, and, 10.00 grams of commercially available barium-aluminum glass powder are uniformly mixed with the above-mentioned components by mechanical stirring to make a nano-inorganic powder with a total weight of 100.00 grams containing multiple components for subsequent use; wherein the columnar mesoporous The outer diameter of the silica is between 100 nm and 300 nm, and the length of the columnar mesoporous silica is between 200 nm and 600 nm, and the length of the columnar mesoporous silica The ratio to the outer diameter is between 1 and 3, and the mesopore size of the columnar mesoporous silica is between 2 nm and 5 nm.

[0029] 10.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, and 20...

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Abstract

The invention relates to a preparation method of a dental reinforced material, 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 aspect of abrasion resistance. 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 dimethacrylate thinner, camphorquinone photo-initiator and dimethylamino ethyl methacrylate coinitiator and the like in the condition without sunlight; and removing bubbles under vacuum condition. The key point of the scheme is as follows: the inorganic nano-powder contains columnar mesoporous silica which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The reinforced filler of the columnar mesoporous silica adopted in the method has a larger contact interface with resin matrix, therefore, the filler does not fall off easily, which is beneficial to improving the abrasion resistance.

Description

technical field [0001] The invention relates to a preparation method of a dental reinforcing material, which belongs to the field of A61K medical and dental preparations. Background technique [0002] Among all kinds of dental materials used in cavity restoration, single-paste light-curing composite resin has obvious comprehensive advantages in comparison. For this reason, this emerging composite resin has been generally accepted in dental cavity restoration. However, it is necessary to further improve and perfect this type of material. [0003] In the components of single paste type dental composite resin for caries filling, the method adopted to increase the wear resistance is to add more inorganic fillers to the resin material to use amorphous particles, the role that amorphous particles can play in the composite resin Similar to spherical particles, in the surface layer of dental composite resin cured by polymerization reaction, the bonding surface between amorphous par...

Claims

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Application Information

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IPC IPC(8): A61K6/027A61K6/033A61K6/083A61K6/838
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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