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Dental material reinforced by rigid inorganic nano-filler

An inorganic nano-filler and reinforcement technology, applied in dentistry, dental preparations, dental prostheses, etc., can solve the problems of weak anchoring force of inorganic filler particles, achieve the effect of reducing wear speed and assisting resistance

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 material containing inorganic rigid nano fillers that helps to solve the problem of weak anchoring force of inorganic filler particles in existing dental composite resins.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 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.

[0017] 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

[0020] 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.

[0021] 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

[0024] 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.

[0025] 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 dental material reinforced by rigid inorganic nano-filler, which relates to the field of dental preparation. The scheme aims at solving the problem that the existing photo-curing single-paste dental material used for repairing caries needs to be improved in the aspect of abrasion resistance. The material comprises the following components by weight percentage: 20 to 85 percent of inorganic nano-powder which is subjected to surface modification by silane coupling agent, 8 to 70 percent of bisphenol A glycidyl methacrylate resin monomer, 5 to 25 percent of triethylene-glycol dimethacrylate thinner, 0.25 to 2 percent of camphorquinone photo-initiator and 0.5 to 3 percent of dimethylamino ethyl methacrylate coinitiator. The key point of the scheme is as follows: theinorganic nano-powder contains columnar mesoporous silica which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The columnar mesoporous silica has a larger bonding interface witha resin matrix, thus not falling off easily, and being beneficial to resisting abrasion.

Description

technical field [0001] The invention relates to a dental material reinforced by rigid inorganic nanometer filler, which belongs to the field of A61K medical and dental preparations. Background technique [0002] Compared with traditional caries-filling dental materials such as glass ionomer cement, light-cured single-paste composite resin materials containing inorganic fillers have obvious comprehensive advantages. The application is becoming an irreversible trend. In order to further optimize its performance, it is necessary to continuously improve and improve this kind of material. [0003] Among the components of single paste type dental composite resin for caries filling, the inorganic filler added to increase the wear resistance is mostly amorphous particles, which can play a role similar to spherical particles in the composite resin, and are cured by polymerization reaction. In the surface layer of the dental composite resin, the bonding surface between the amorphous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/027A61K6/083A61K6/033A61K6/838
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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