Invisible orthodontic appliance and preparation method thereof

An invisible appliance and invisible orthodontic technology, applied in the field of stomatology, can solve the problems that invisible appliances cannot simultaneously achieve bacteriostasis, prevention and control of enamel demineralization in orthodontic patients, etc., achieve long-term bacteriostasis, release fluoride ions, improve Long-lasting antibacterial properties and the effect of improving the sanitation environment

Active Publication Date: 2021-04-09
南方医科大学口腔医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that existing invisible aligners cannot realize antibacterial and prevent orthodontic patients' e

Method used

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  • Invisible orthodontic appliance and preparation method thereof
  • Invisible orthodontic appliance and preparation method thereof
  • Invisible orthodontic appliance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 A kind of invisible aligner

[0049] 1. Raw materials

[0050] This embodiment provides an invisible aligner, the invisible orthodontic base material is thermoplastic polyurethane, and the dosage of each component of the coating material is: 0.35 g of sodium fluoride, 0.5 g of PEG, 1 g of chitosan, and 1 g of nano-titanium dioxide; The particle size of nano titanium dioxide is 10nm.

[0051] 2. Preparation method

[0052] The preparation process is as figure 1 shown.

[0053] (1) Preparation of coating

[0054] S1. Chitosan is dissolved in the acetic acid aqueous solution of 20g / L, filters the chitosan solution of 20g / L; Prepares the PEG aqueous solution of 30g / L, adds sodium fluoride and mixes, obtains fluorine-loaded PEG aqueous solution;

[0055] S2. Mix the chitosan / acetic acid aqueous solution of step S1 with the fluorine-loaded PEG aqueous solution to obtain chitosan / fluorine-loaded PEG homogeneous mixed solution;

[0056] S3. Adding nano-titani...

Embodiment 2

[0061] Embodiment 2 A kind of invisible aligner

[0062] 1. Raw materials

[0063] This embodiment provides a kind of invisible aligner, and the base material of invisible orthodontics is thermoplastic polyurethane, and the consumption of each component of coating material is: calcium fluoride 0.35g, PEG 0.35g, chitosan 2g, nano titanium dioxide 1g; Wherein The particle size of nano titanium dioxide is 10nm.

[0064] 2. Preparation method

[0065] With embodiment 1.

Embodiment 3

[0066] Embodiment 3 A kind of invisible aligner

[0067] 1. Raw materials

[0068] This embodiment provides an invisible aligner, the base material of the invisible orthodontic is thermoplastic polyurethane, and the dosage of each component of the coating material is: 0.35g of stannous fluoride, 0.35g of PEG, 1g of chitosan, and 1g of nano-titanium dioxide; Wherein the particle size of the nano-titanium dioxide is 10nm.

[0069] 2. Preparation method

[0070] With embodiment 1.

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Abstract

The invention provides an invisible orthodontic appliance and a preparation method thereof. The invisible orthodontic appliance is obtained by introducing a coating material into the surface of an invisible orthodontic base material through an ultrasonic-assisted technology. The coating material comprises villiaumite, PEG (polyethylene glycol), chitosan and nano titanium dioxide, and the coating material is prepared by loading fluorine on the PEG, so that a stable and lasting fluorine slow-release effect is obtained, and the coating material has the performance of promoting enamel mineralization; the PEG can also improve the dispersity of nano titanium dioxide particles in the suspension and improve the dispersion uniformity of nano titanium dioxide; the nano titanium dioxide has good biocompatibility, stable chemical property and remarkable antibacterial effect, and the antibacterial property can be remarkably enhanced by combining with chitosan, the obtained invisible orthodontic appliance has the characteristics of excellent mechanical property, long-acting bacteriostasis and promotion of enamel mineralization.

Description

technical field [0001] The invention relates to the technical field of stomatology, in particular to an invisible appliance and a preparation method thereof. Background technique [0002] Due to the advantages of self-removal and wearing, easy cleaning, aesthetics, comfort, and convenience, invisible aligners have become increasingly popular among patients with malocclusion in recent years. However, as the number of patients wearing clear aligners expands, the complications brought about by clear aligners are gradually revealed, the most common of which are enamel demineralization and caries. The invisible aligner is in close contact with the tooth surface during the wearing process, the saliva and air flow rate on the tooth surface are reduced, and the ability to wash away the plaque on the tooth surface is weakened. In addition, the easy-to-form anaerobic interface changes the bacterial metabolism and micro-ecology, eventually causing Demineralization of tooth surface ena...

Claims

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Application Information

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IPC IPC(8): A61C7/00A61C7/08A61L31/10A61L31/08A61L31/14A61L31/16
CPCA61C7/00A61C7/08A61L31/10A61L31/088A61L31/14A61L31/16A61L2300/102A61L2300/404C08L5/08C08L71/02
Inventor 张超王健蓉何龙文代丹妮陈堉铭邵龙泉
Owner 南方医科大学口腔医院
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