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Medical oral beauty tooth repair filling material and preparation method thereof

A technology for filling materials and teeth, applied in dental preparations, pharmaceutical formulations, dentistry, etc., can solve the problems of reducing the polymerization shrinkage rate of composite resins and being difficult to obtain, and achieve the effect of improving mechanical properties and reducing polymerization shrinkage.

Inactive Publication Date: 2020-10-30
长沙博谱科学仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Patents such as CN106074180B, CN106074181B, and CN103211712B all make full use of cage-type silsesquioxane materials to provide network crosslinking points for the system, and improve the mechanical properties of the material while reducing the polymerization shrinkage of the composite resin. However, whether POSS is suitable for low-cost large There are doubts about the actual production and use of the scale
[0016] CN101579290B Aiming at the realistic requirements of technological development that the wear resistance and strength and toughness of existing dental composite resins need to be further improved, a new dental resin composition has been developed, mainly relying on the weight percentage of nano inorganic powder weight being 10% ~80% zirconia nanotubes, but zirconia nanotubes are not easy to obtain and need to be prepared by special methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example

[0037] Surface modified nano silica:

[0038] Add 10 parts by mass of nano-silica, 0.5 parts by mass of n-propylamine, and 2 parts by mass of γ-aminopropyltriethoxysilane into cyclohexane solvent, react at room temperature for 1 hour, then react at 60°C for 1 hour, and then add 2 parts by mass of the HDI trimer continued to react for 3 hours, and dried for 24 hours after removing the solvent to obtain surface-modified nano-silica.

[0039] Resin monomers containing carbamate:

[0040] Add tetrahydrofuran and dibutyltin dilaurate to the HDI trimer, then slowly add resorcinol dihydroxypropyl ether (controlling the HDI trimer and resorcinol dihydroxypropyl ether molar ratio is 4:3 ), control the temperature at about 70°C for 5 hours, cool down to 45°C after the reaction, slowly add hydroxyethyl methacrylate (the molar ratio of HDI trimer to hydroxyethyl methacrylate is 2:3), and react 6 A urethane-containing resin monomer was obtained after 1 hour.

Embodiment 1

[0042] A filling material for tooth restoration, prepared as follows:

[0043] Mix 10 parts by mass of the urethane-containing resin monomer obtained in the preparation example and 5 parts by mass of triethylene glycol dimethacrylate to form a resin matrix; (2) add 0.5 parts by mass of camphorquinone and 1 part by mass of Ethyl dimethylaminobenzoate, stirred evenly; (3) 80 parts by mass of surface-modified nano silicon dioxide (obtained from the preparation example) was added, and fully stirred evenly in a vacuum mixer to eliminate air bubbles.

Embodiment 2

[0045] A filling material for tooth restoration, prepared as follows:

[0046] Mix 15 parts by mass of the urethane-containing resin monomer obtained in the preparation example and 5 parts by mass of triethylene glycol dimethacrylate to form a resin matrix; (2) add 0.5 parts by mass of camphorquinone and 1 part by mass of Ethyl dimethylaminobenzoate, stirred evenly; (3) 75 parts by mass of surface-modified nano silicon dioxide (obtained from the preparation example) was added, and fully stirred evenly in a vacuum mixer to eliminate air bubbles.

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PUM

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Abstract

The invention relates to a medical dental repair filling material for oral beauty. The medical dental repair filling material comprises 15-20 parts by mass of a resin matrix, 75-85 parts by mass of amodified filler and 1-2 parts by mass of a photoinitiator system, wherein the resin matrix comprises a carbamate-containing resin monomer and an active diluent, and the modified filler is surface-modified nano silicon dioxide. According to the scheme, polymerization shrinkage of the tooth repair filling material can be reduced, and the mechanical property is improved.

Description

technical field [0001] The invention relates to the field of medical oral cosmetics, in particular to a tooth repair filling material and a preparation method thereof. Background technique [0002] Tooth decay and tooth fracture due to trauma are common dental oral problems. With the continuous development of dental cosmetic restoration medicine, filling materials are constantly being updated. Light-curing composite resins are widely used in the oral cavity because of their good aesthetic properties, bonding properties with teeth, minimally invasive treatment and convenient operability. However, it is also found clinically that volume shrinkage and shrinkage stress during resin polymerization can lead to micro-leakage or ineffective bonding at the resin-tooth interface, which in turn leads to the occurrence of secondary caries. Therefore, how to reduce secondary caries after resin restoration and further improve the mechanical properties of resin has become one of the key i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/893A61K6/62A61K6/76C08G18/79C08G18/32C08G18/67
CPCA61K6/62A61K6/76A61K6/893C08G18/3215C08G18/672C08G18/79C08L51/08
Inventor 不公告发明人
Owner 长沙博谱科学仪器有限公司
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