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Method for preparing visible light solidified orthodontic binder containing 3-META functional monomer

A technology of functional monomers and adhesives, applied in dental preparations, dental prostheses, pharmaceutical formulations, etc., can solve the problems of products with excellent comprehensive performance, achieve excellent bonding performance, improve wettability, and increase bonding strength Effect

Inactive Publication Date: 2008-04-23
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The research and development of light-curing orthodontic adhesives with independent intellectual property rights and low price is of great clinical significance, but at present, there are relatively few light-curing orthodontic adhesives with independent intellectual property rights in China, and most of them are imported for clinical use. Light-curing orthodontic adhesives, there are few products of domestic brands, such as Beijing-Tianjin enamel adhesives, etc., but each has its own advantages and disadvantages, and there is no product with excellent comprehensive performance

Method used

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  • Method for preparing visible light solidified orthodontic binder containing 3-META functional monomer
  • Method for preparing visible light solidified orthodontic binder containing 3-META functional monomer
  • Method for preparing visible light solidified orthodontic binder containing 3-META functional monomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 1g of white solid 4-META to 4g of liquid active diluent TEGDMA, put it in a constant temperature oven at a temperature of 40°C until 4-META is completely dissolved in the active diluent (TEGDMA); add 45g of matrix resin UDMA; add 0.005g Photosensitizer camphorquinone CQ and organic amine activator dimethylaminoethyl methacrylate DMAEMA; stir evenly to obtain binder primer.

[0035] Add 15 g of inorganic filler hydroxyapatite HAP treated with titanate coupling agent NDZ-311 into the prepared binder primer, and stir evenly to obtain a binder paste.

[0036] After etching the enamel surface with 20% phosphoric acid etchant for 0.5min, apply adhesive primer and adhesive paste on the etched enamel and stainless steel orthodontic brackets; visible light curing can be achieved for 120s Bond strength of 12.98MPa.

Embodiment 2

[0038] Add 2g of white solid 4-META to 10g of liquid reactive diluent TEGDMA, put it in a constant temperature oven at a temperature of 50°C until 4-META is completely dissolved in the reactive diluent (TEGDMA); add 40g of matrix resin BisGMA; add 0.01g of photosensitive Agent camphorquinone CQ and organic amine activator dimethylaminoethyl methacrylate DMAEMA; stir evenly to obtain binder primers.

[0039] Add 20 g of inorganic filler hydroxyapatite HAP treated with titanate coupling agent NDZ-311 into the prepared binder primer, and stir evenly to obtain a binder paste.

[0040] After the enamel surface was etched with 30% phosphoric acid etchant for 1 min, the adhesive primer and adhesive paste were applied on the etched enamel and stainless steel orthodontic brackets; visible light curing for 100s could reach 16.38 Bond strength in MPa.

[0041] As shown in Figure 1, it was observed by transmission electron microscopy (SEM) that the bonded surface was well bonded, and the...

Embodiment 3

[0043]Add 3g of white solid 4-META to 18g of liquid active diluent TEGDMA, put it into a constant temperature oven at a temperature of 60°C until 4-META is completely dissolved in the active diluent (TEGDMA); add 35g of matrix resin UDMA; add 0.05g of photosensitive Agent camphorquinone CQ and organic amine activator dimethylaminoethyl methacrylate DMAEMA; stir evenly to obtain binder primers.

[0044] Add 25 g of inorganic filler hydroxyapatite HAP treated with titanate coupling agent NDZ-401 into the prepared binder primer, and stir evenly to obtain a binder paste.

[0045] After etching the enamel surface with 35% phosphoric acid etchant for 2 minutes, apply adhesive primer and adhesive paste on the etched enamel and stainless steel orthodontic brackets; visible light curing for 80 seconds can reach 21.32 Bond strength in MPa.

[0046] As shown in Figure 2, it was observed by transmission electron microscopy (SEM) that the bonding condition of the bonding surface was good,...

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Abstract

The present invention belongs to the field of biomedical high-molecular material technology, in the concrete, it relates to a preparation method of visible light solidified orthodontic adhesive containing 4-META functional monomer. Said preparation method includes the following steps: making functional monomer 4-META be added into a liquid active diluting agent, placing them into a constant-temperature drying oven, at the temperature of 40deg.C-80deg.C making 4-META be completely dissolved in said active diluting agent, the added quantity of said active diluting agent is 2-6 times mass of functional monomer 4-META, then adding matrix resin, uniformly stirring them, the added quantity of said matrix resin is 0.8-9 times mass of the obtained mixture, then adding photosensitizer and organic amine activating agent, uniformly stirring them to obtain adhesive primer, adding inorganic filler in said adhesive primer, unifor54mly stirring them so as to obtain the invented adhesive paste agent.

Description

technical field [0001] The invention belongs to the technical field of biomedical polymer materials, and in particular relates to a preparation method of a visible light-curable orthodontic adhesive containing 4-META functional monomer. Background technique [0002] Since Newman first used epoxy resin bonding technology for bonding orthodontic accessories in 1965, it has been rapidly popularized because of its convenience and high efficiency, and has been widely introduced into orthodontic fixed correction technology. Orthodontic adhesives have also developed rapidly. At present, there are orthodontic adhesives with various components and various curing methods for clinicians to choose. [0003] There are many types of adhesives used in orthodontic adhesives, including general-purpose and many special-purpose orthodontic adhesives. According to the curing method, it can be divided into chemical curing and radiation curing. The chemical curing type can be divided into mixed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/08A61L24/04A61K6/884
Inventor 许乾慰商伟辉王国建姚畅旺
Owner TONGJI UNIV
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