Preparation method of anti-secondary caries cavity repair 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: 2012-02-01
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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PUM

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Abstract

The invention relates to a preparation method of an anti-secondary caries cavity restoration material, which belongs to the field of medical and dental preparations. The existing fluorine-containing anti-secondary caries composite resin caries filling materials have the problems of too fast release of fluorine, poor interface compatibility and no rigid support for the caries filling body. This case aims to solve the above problems. The steps of the method in this case include using a silane coupling agent to modify the surface of the nano-inorganic powder, and combining the modified nano-inorganic powder with monomers such as bisphenol A glycidyl methacrylate, dimethacrylic acid Materials such as diluents such as triethylene glycol ester, photoinitiators such as camphorquinone, and co-initiators such as dimethylaminoethyl methacrylate are mixed evenly under dark conditions, and are removed under vacuum conditions. Bubbles, the main point of this case is that the nano-inorganic powder contains fluorine-loaded zirconia nanotubes accounting for 10% to 80% of its own weight. The fluorine-loaded zirconia nanotubes have both the functions of slow-release fluorine to prevent secondary caries and structural 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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Patent Type & Authority Patents(China)
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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