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Preparation technology of dental material for cavity restoration

A dental material and cavity repair technology, applied in dental preparations, dentistry, medical science, etc., to increase wear resistance, reduce wear speed, and improve toughness

Inactive Publication Date: 2010-12-08
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

[0031] Weigh 10.00 grams of zirconia nanotubes, 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 The nano-inorganic powder containing multiple components is ready for use; wherein the outer diameter of the zirconium dioxide nanotubes involved is between 20 nanometers and 300 nanometers, and the length of the zirconium dioxide nanotubes involved is between 0.2 microns and 200 microns Between, the ratio of the length to the outer diameter of the zirconium dioxide nanotubes involved is between 3 and 100, and any zirconium dioxide nanotube material satisfying the above-mentioned limitation can be used.

[0032] 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 c...

Embodiment 2

[0035] Weigh 80.00 grams of zirconia 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 gram of nano-inorganic powder containing multiple components, ready for use; wherein the outer diameter of the zirconium dioxide nanotubes involved is between 20 nanometers and 300 nanometers, and the length of the zirconium dioxide nanotubes involved is between 0.2 microns and 200 nanometers Between micrometers, the ratio of the length to the outer diameter of the zirconium dioxide nanotubes involved is between 3 and 100, and any zirconium dioxide nanotube material that meets the above limitations can be used.

[0036] 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 compone...

Embodiment 3

[0039] Weigh 45.00 grams of zirconium dioxide 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 gram of commercially available barium-aluminum glass powder, the above 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 subsequent use; wherein the involved zirconia nano The outer diameter of the tube is between 20 nanometers and 300 nanometers, the length of the zirconium dioxide nanotubes is between 0.2 micrometers and 200 micrometers, and the ratio of the length to outer diameter of the zirconium dioxide nanotubes is 3 Between and 100, any zirconia nanotube material that satisfies the above-mentioned limitation can be used.

[0040] 10.00 grams of medical grade silane coupling agent KH-570 wa...

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Abstract

The invention relates to a preparation technology of a dental material for the cavity restoration, belonging to the field of medical and dental preparation. The invention aims at solving the problems that currently the wear resisting property and the strength and toughness of the dental materials used for filling tooth cavities are urgent to be further improved. The invention comprises the following steps: the surface of nanometer inorganic powder is modified with a silane coupling agent, furthermore, the modified nanometer inorganic powder, monomers such as bisphenol-A glycidyl methacrylate,diluents such as triethylene-glycol dimethacrylate, photoinitiators such as camphorquinone and coinitiators such as dimethylamino ethyl methacrylate are mixed evenly under the dark conditions, and bubbles are removed under vacuum. The key of the invention is the nanometer inorganic powder comprises 10 wt%-80 wt% zirconium dioxide nanotube. The anchorage force and the roughness of the material canboth be improved by adding zirconium dioxide nanotube owning to the morphology and hardness of the zirconium dioxide nanotube.

Description

technical field [0001] The invention relates to a preparation process of dental materials for cavity repair, belonging 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] 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 the surface layer of the dental composite resin for den...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/093A61K6/083A61K6/02A61K6/04A61K6/033A61K6/838A61K6/896
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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