A kind of "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and its preparation method

A technology of fluorinated hydroxyapatite and composite resin, which is applied in the field of dental restoration materials and its preparation, can solve the problem that dental restoration resins cannot have excellent mechanical strength and functionality at the same time, and achieve excellent mechanical strength and function properties, enhance acid resistance and stability, improve mechanical properties and service performance

Active Publication Date: 2021-11-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and its preparation method, so as to overcome the problem that the dental restoration resins in the prior art cannot have excellent mechanical properties at the same time. Defects in Strength and Functionality

Method used

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  • A kind of "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and its preparation method
  • A kind of "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and its preparation method
  • A kind of "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and its preparation method

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Effect test

Embodiment 1

[0038] (1) Preparation of spherical fluorinated hydroxyapatite (E-FHAp) particles similar to "Donkey bullying mouth"

[0039] Weigh 18.3g of EDTA disodium salt and 18.3g of calcium nitrate (tetrahydrate), pour it into a beaker with 400ml deionized water, add the rotor and stir on a magnetic stirrer until completely dissolved, then weigh ten Add 15.6 g of sodium dihydrogen phosphate dihydrate to the above solution, and stir until the solution becomes transparent. Then, with the solution continuing to stir, add flaky solid sodium hydroxide to adjust the pH of the solution to 12.5, then add 0.06 g of sodium fluoride to the solution, and continue stirring for 20 minutes. Afterwards, the solution was placed in an oil bath at 105° C., condensed and refluxed and allowed to stand for reaction for 1 h. After the reaction, the particles were centrifuged and washed with deionized water, and dried in vacuum to obtain F-HAp particles.

[0040] (2) Silane modification of E-FHAp

[0041]A...

Embodiment 2

[0049] (1) Preparation of spherical fluorinated hydroxyapatite (E-FHAp) particles similar to "Donkey bullying mouth"

[0050] Weigh 29.8g of EDTA disodium salt and 18.9g of calcium nitrate (tetrahydrate), pour it into a beaker with 400ml deionized water, add the rotor and stir on a magnetic stirrer until completely dissolved, then weigh ten Add 17.2 g of sodium dihydrogen phosphate dihydrate to the above solution, and stir the solution until it becomes transparent. Then, with the solution continuing to stir, add flaky solid sodium hydroxide to adjust the pH of the solution to 12.5, then add 0.34 g of sodium fluoride to the solution, and continue stirring for 20 minutes. Afterwards, the solution was placed in an oil bath at 105° C., condensed and refluxed and allowed to stand for reaction for 1 h. After the reaction is completed, the particles are centrifuged and washed with deionized water, and dried in vacuum to obtain E-FHAp particles.

[0051] (2) Silane modification of E...

Embodiment 3

[0063] (1) Preparation of spherical fluorinated hydroxyapatite (E-FHAp) particles similar to "Donkey bullying mouth"

[0064] Weigh 33.8g of EDTA disodium salt and 17.9g of calcium nitrate (tetrahydrate), pour it into a beaker with 400ml of deionized water, add the rotor and stir on a magnetic stirrer until completely dissolved, then weigh ten Add 23.5 g of sodium dihydrogen phosphate dihydrate to the above solution, and stir until the solution becomes transparent. Then, with the solution continuing to stir, add flake solid sodium hydroxide to adjust the pH of the solution to 12.5, then add 0.56 g of sodium fluoride to the solution, and continue stirring for 20 minutes. Afterwards, the solution was placed in an oil bath at 105° C., condensed and refluxed and allowed to stand for reaction for 1 h. After the reaction is completed, the particles are centrifuged and washed with deionized water, and dried in vacuum to obtain E-FHAp particles.

[0065] (2) Silane modification of E...

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Abstract

The invention relates to a "donkey bully mouth" flower spherical fluorinated hydroxyapatite-based dental composite resin and a preparation method thereof. The composite resin comprises a filler, a resin matrix and a photoinitiator, and the filler is a compound of silane-modified fluorinated hydroxyapatite and barium glass powder. The method comprises: preparation of "donkey bully mouth" flower spherical fluorinated hydroxyapatite (E-FHAp), preparation of silane-modified E-FHAp, preparation of E-FHAp-based dental composite resin. The method constructs a high-quality dental restoration resin with excellent mechanical strength and functionality, thereby effectively improving the mechanical properties and service performance of the dental restoration resin.

Description

technical field [0001] The invention belongs to the field of dental restoration materials and its preparation, and in particular relates to a spherical fluorinated hydroxyapatite-based dental composite resin similar to "donkey bully mouth" and a preparation method thereof. Background technique [0002] Caries is a chronic cavity disease caused by a variety of factors, mainly bacteria, mainly refers to the physiological imbalance between the hard tissue of the tooth and the acidic products formed by the bacterial metabolism in the plaque biofilm, resulting in tooth decay. The tissue is partially damaged. Dental caries has been listed by the World Health Organization (WHO) as one of the three major non-communicable diseases that need to be prevented and controlled in the 21st century, second only to cardiovascular diseases and cancer, seriously affecting human physical and mental health. Due to its good biocompatibility, aesthetics and excellent mechanical properties, dental ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/887A61K6/77A61K6/75A61K6/62A61K6/15
CPCA61K6/15A61K6/62A61K6/75A61K6/77A61K6/887C08L35/02
Inventor 朱美芳陈红艳王瑞莉王兰心崔中玉毛驭川汪俊俊
Owner DONGHUA UNIV
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