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Method for preparing anti-secondary caries cavity repairing material

A technology for cavity restoration and secondary caries, applied in dental preparations, pharmaceutical formulations, medical science, etc., can solve the problems of unstable release of fluorine from inorganic fluorine salts, reduction of overall strength, toughness and wear resistance of composite resins, etc.

Active Publication Date: 2010-04-07
江苏南田工机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of unstable release of fluorine from inorganic fluorine salts in the existing fluorine-doped composite resins for caries filling, and the impact on the composite resins caused by the naked doping of inorganic fluorine salts. In order to solve the problem of reducing the overall strength, toughness and wear resistance, a new preparation method of fluorine-doped composite resin for caries filling is developed to help prevent secondary caries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 10.00 grams of the fluorine-loaded zirconia 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 prepare a total The nano-inorganic powder that weighs 100.00 grams and contains multiple components is for subsequent use.

[0044] 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 reacted at 50°C for 24 hours, moved to an oven, and dried at 80°C for 10 hours, then, use the water alcohol The solution was washed, then dried at 100° C. for 10 hours, dried, and pulverized to make modified nano-inorganic powders for future use, and the reserve amount was slightly greater than the required amount.

[0045] Add 5.00 g of trie...

Embodiment 2

[0047] Weigh 80.00 grams of the fluorine-loaded zirconia 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 prepare The nanometer inorganic powder that total weight is 100.00 grams contains multiple components, standby.

[0048] 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 at 100°C for 2 hours, moved to an oven, and dried at 80°C for 2 hours, then, use the water alcohol The solution is washed, then dried at 80°C for 2 hours, and then heated to 100°C for 5 hours. After drying, it is pulverized to make a modified nano-inorganic powder, which is used for future use. The reserve amount is slightly larger than the required amount.

[...

Embodiment 3

[0051] Weigh 45.00 grams of the fluorine-loaded zirconia 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 of commercially available barium-aluminum glass powder were uniformly mixed with the above various components by means of mechanical stirring to prepare a nano-inorganic powder with a total weight of 100.00 grams containing multiple components, and set aside.

[0052] 10.00 grams of medical grade silane coupling agent KH-570 was hydrolyzed under the action of acetic acid, and 200 milliliters of hydroalcoholic solution was added. The premixed nano-inorganic powder containing multiple components is dispersed in ultrasonic waves, then reacted at 100°C for 2 hours, moved to an oven, and dried at 80°C for 2 hours, then, use the water alcohol The solution was washed, then dried at 80°C for 12 hours, and then heated t...

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Abstract

The invention relates to a method for preparing an anti-secondary caries cavity repairing material, which belongs to the field of medical and dental preparations. The prior fluorine-containing anti-secondary caries composite resin caries filling material has the problems of over-quick fluorine dilution, poor interface compatibility and no rigid support to a caries filling body. The method in the invention aims to solve the problems and comprises the following steps: utilizing a silane coupling agent to perform surface modification on nanometer inorganic powder; under a dark condition, uniformly mixing the modified nanometer inorganic powder with monomers of a bisphenol A glycidyl methacrylate class, diluents of a dimethacrylate triethylene-glycol ester class, light triggers of a camphorquinone class, coinitiators of a dimethylamino ethyl methacrylate class and other materials; and removing bubbles under a vacuum condition. The method of the invention has the key point that the nanometer inorganic powder comprises a fluorine-containing zirconium dioxide nanometer tube which takes up 10 to 80 percent of the percent by weight of the nanometer inorganic powder, and the fluorine-containing zirconium dioxide nanometer tube integrates the functions of fluorine slow release of fluorine anti-secondary caries and structure reinforcement.

Description

technical field [0001] The invention relates to a method for preparing an anti-secondary caries cavity restoration material, which belongs to the field of A61K medical and dental preparations. Background technique [0002] Composite resin is a caries filling material that has been gradually popular in clinical practice. Composite resins for caries filling can be roughly divided into two categories: single-paste composite resins and double-paste composite resins. Accompanied by a certain volume shrinkage, no matter what kind of composite resin is used for caries filling, micro-cracks are likely to occur on the edge of caries-filled fillings, which will cause edge micro-leakage and cause secondary caries. Many studies have shown that if the cavity filling material has the ability to release fluoride ions, the secondary caries at the edge of the cavity filling will be significantly reduced, because the released fluoride ions can diffuse into the adjacent hard tissue of the too...

Claims

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Application Information

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IPC IPC(8): A61K6/083A61K6/02
Inventor 李榕生李榕卿
Owner 江苏南田工机有限公司
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