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Preparation method of dental repair material containing rare earth oxide

A technology of rare earth oxides and repair materials, which is used in dental preparations, dentistry, dental prostheses, etc. to increase wear resistance, increase toughness, and improve toughness.

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

[0020] Weigh 10.00 grams of ceria nanotubes, 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 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 ceria nanotubes is between 10 nanometers and 50 nanometers, and the length of the ceria nanotubes is between 50 nanometers and 50 nanometers. Between 600 nanometers, and the ratio of the length to the outer diameter of the ceria nanotubes is between 3 and 80, any ceria nanotube materials that meet the above limitations can be used.

[0021] 2.50 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, 40 milliliters of hydroalcoholic solution was added, and the volume ratio of water and alcohol in the hydroalcoholic solution was 70 to 30. The pre-mixed nano-inorganic powder contai...

Embodiment 2

[0024] Weigh 80.00 grams of ceria nanotubes, 15.00 grams of barium strontium boron glass powder, and 5.00 grams of nano-hydroxyapatite, and uniformly mix the above three components by mechanical stirring to make a total weight of 100.00 Grams of nano-inorganic powder containing multiple components, ready for use; wherein the outer diameter of the ceria nanotubes is between 10 nanometers and 50 nanometers, and the length of the ceria nanotubes is between 50 nanometers and 600 nanometers, and the ratio of the length to the outer diameter of the ceria nanotubes is between 3 and 80, any ceria nanotube material that meets the stated limitations can be used.

[0025] 2.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, 400 milliliters of hydroalcoholic solution was added, and the volume ratio of water and alcohol in the hydroalcoholic solution was 5 to 95. The pre-mixed nano-inorganic powder containing various components was disper...

Embodiment 3

[0028] Weigh 45.00 grams of ceria 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 commercially available barium-aluminum glass powder, and uniformly mix the above various components by mechanical stirring to prepare a nano-inorganic powder containing a variety of components with a total weight of 100.00 grams, which is for later use; The outer diameter of the tube is between 10 nanometers and 50 nanometers, and the length of the ceria nanotubes is between 50 nanometers and 600 nanometers, and the length of the ceria nanotubes is between 50 nanometers and 600 nanometers. With a ratio between 3 and 80, any ceria nanotube material that meets the stated limits can be used.

[0029] 10.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, 200 milliliters of hydroalcoho...

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Abstract

The invention relates to a preparation method of dental repair material containing rare earth oxide, which relates to the field of dental preparation. The invention 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 scheme 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 isas follows: the inorganic nano-powder contains ceria nano-tube which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The ceria nano-tube added in the inorganic nano-powder is beneficial to improving the anchoring force and increasing the toughness.

Description

technical field [0001] The invention relates to a preparation method of a rare earth oxide-containing dental repair material, belonging to the field of A61K medical and dental preparations. Background technique [0002] Among all kinds of dental materials for cavity repair, single-paste light-cured composite resin based on photochemical rapid reaction mechanism has obvious comprehensive advantages. For this reason, dental cavity repair work has been Although this emerging composite material is generally accepted, further improvement and refinement of this type of material is still necessary. [0003] Among the components of dental composite resin for dental cavity restoration, the inorganic fillers added to increase strength and wear resistance mostly use amorphous particles. The function of the composite resin for restoration is also similar to that of spherical particles. The surface layer of the dental composite resin for dental cavity restoration after curing by the pol...

Claims

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Application Information

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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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