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Adhesive for orthodontics and preparation method thereof

An adhesive and oral cavity technology, applied in dental preparations, pharmaceutical formulations, medical science, etc., can solve problems such as low bonding strength, weak tensile strength, and easy falling off of brackets

Active Publication Date: 2018-04-27
王梦梦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing orthodontic adhesives have low bonding strength and weak tensile strength, especially when the arch wire is fixed on the bracket and applied tension, the bracket is easy to fall off, and secondary bonding is required. The brackets are easy to fall off when the food is too sticky, and some orthodontic patients also have allergic symptoms

Method used

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  • Adhesive for orthodontics and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An adhesive for orthodontics, consisting of the following components in parts by mass: 19 parts of epoxy resin, 5 parts of polymethacrylate, 3 parts of n-butyl acrylate, 12 parts of carboxymethyl cellulose, ortho 5 parts of dibutyl phthalate, 32 parts of glycerin, 3 parts of silane coupling agent KH-570, 12 parts of polydibutylene, 6 parts of hydroxyapatite.

[0018] Preparation:

[0019] (1) Add epoxy resin, polymethacrylate, carboxymethyl cellulose, coupling agent, polydibutylene, and hydroxyapatite to glycerin according to the above mass parts, and stir at 110°C until completely Dissolving, stirring speed is 800r / min, obtains mixture one;

[0020] (2) Add n-butyl acrylate and dibutyl phthalate to the mixture 1 obtained in step (1), and sonicate at 75° C. for 10 minutes to obtain mixture 2;

[0021] (3) Put the mixed material 2 obtained in step (2) in a vacuum oven for vacuuming to remove solvent, the vacuum degree is 0.1MPa, the temperature is 80°C, and the time is...

Embodiment 2

[0023] An adhesive for orthodontics, consisting of the following components by mass: 37 parts of epoxy resin, 16 parts of polymethacrylate, 8 parts of n-butyl acrylate, 19 parts of carboxymethyl cellulose, 15 parts of dibutyl phthalate, 43 parts of glycerin, 10 parts of silane coupling agent KH-560, 25 parts of polydibutylene, and 21 parts of hydroxyapatite.

[0024] Preparation:

[0025] (1) Add epoxy resin, polymethacrylate, carboxymethyl cellulose, coupling agent, polydibutylene, and hydroxyapatite to glycerin according to the above mass parts, and stir at 130°C until completely Dissolving, stirring rate is 1100r / min, obtains mixture one;

[0026] (2) Add n-butyl acrylate and dibutyl phthalate to the mixture 1 obtained in step (1), and sonicate at 90° C. for 15 minutes to obtain mixture 2;

[0027] (3) Put the mixed material 2 obtained in step (2) in a vacuum oven for vacuuming to remove the solvent. The vacuum degree is 0.8MPa, the temperature is 110°C, and the time is 1...

Embodiment 3

[0029] An adhesive for orthodontics, consisting of the following components by mass: 22 parts of epoxy resin, 9 parts of polymethacrylate, 5 parts of n-butyl acrylate, 14 parts of carboxymethyl cellulose, ortho 6 parts of dibutyl phthalate, 37 parts of glycerin, 4 parts of titanate coupling agent NDZ-401, 14 parts of polydibutylene, and 11 parts of hydroxyapatite.

[0030] Preparation:

[0031] (1) Add epoxy resin, polymethacrylate, carboxymethyl cellulose, coupling agent, polydibutylene, and hydroxyapatite to glycerin according to the above mass parts, and stir at 120°C until completely Dissolving, stirring rate is 900r / min, obtains mixture one;

[0032] (2) Add n-butyl acrylate and dibutyl phthalate to the mixture 1 obtained in step (1), and sonicate at 80° C. for 12 minutes to obtain mixture 2;

[0033] (3) Put the mixed material 2 obtained in step (2) in a vacuum oven for vacuuming to remove solvent, the vacuum degree is 0.3MPa, the temperature is 90°C, and the time is 1...

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Abstract

The invention discloses an orthodontic adhesive and a preparation method thereof. The adhesive is prepared from the following components in parts by weight: 19-37 parts of epoxy resin, 5-16 parts of polymethacrylate, 3-8 parts of n-butyl acrylate, 12-19 parts of carboxymethylcellulose, 5-15 parts of dibutyl phthalate, 32-43 parts of glycerinum, 3-10 parts of a coupling agent, 12-25 parts of dibutene and 6-21 parts of hydroxyapatite. The prepared adhesive is high in bonding strength and high in stretchability, does not generate an allergic symptom and can be widely applied to clinical treatment.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to an adhesive for orthodontics and a preparation method thereof. Background technique [0002] Orthodontics is the straightening of teeth and the removal of malocclusions. Orthodontics mainly studies the etiology, diagnosis, analysis, prevention and treatment of malocclusion. Orthodontic treatment mainly uses various orthodontic devices to adjust the coordination between facial bones, teeth and maxillofacial nerves and muscles, that is, to adjust the coordination between the upper and lower jaws, between the upper and lower teeth, between teeth and jaws The abnormal relationship between the nerves and muscles that connect them, the ultimate goal of correction is to achieve the balance, stability and aesthetics of the oral and jaw system. [0003] The existing orthodontic adhesives mainly include: phosphoric acid etching flushing adhesives, optional products include non-mixing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/097A61K6/033A61K6/083A61K6/087A61K6/838A61K6/891A61K6/898
Inventor 李苏杨李文遐徐勤霞
Owner 王梦梦
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