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A kind of metal aesthetic arch wire for orthodontics and preparation method thereof

A technology for orthodontics and arch wire, which is applied in the direction of arch wire, metal material coating process, vacuum evaporation plating, etc. The effect of controlling film thickness, easy sputtering, and low cost

Active Publication Date: 2022-04-08
HOSPITAL OF STOMATOLOGY CHINA MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing aesthetic coating is expensive and has poor color stability. The aesthetic coating is easy to fall off under the action of chewing force and salivary enzymes in the oral cavity. The white aesthetic coating will change color over time. At the same time, the existing aesthetic arch wire weak corrosion

Method used

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  • A kind of metal aesthetic arch wire for orthodontics and preparation method thereof
  • A kind of metal aesthetic arch wire for orthodontics and preparation method thereof
  • A kind of metal aesthetic arch wire for orthodontics and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this experiment, an Al-SiO2 aesthetic composite coating was prepared based on the aesthetic appearance of the aluminum coating and the corrosion resistance, low friction, and wear resistance of silicon dioxide to realize the combination of aesthetics and function. The coating method specifically includes the following steps:

[0036] Step 1: Preparation of aluminum white film by magnetron sputtering coating

[0037] (1) Unbalanced magnetron sputtering coating equipment

[0038] (2) Membrane structure: nickel titanium or stainless steel arch wire / aluminum

[0039] (3) Preparation of coating process:

[0040] The film thickness of the first layer (aluminum) is about 0.3 microns;

[0041] Coating vacuum (3×10 -3 Pa);

[0042] Coating temperature (250°C);

[0043] Argon pressure (0.5pa);

[0044] Aluminum pre-sputtering time 15min;

[0045] Aluminum coating time 10min;

[0046] Aluminum target pulse voltage 350V;

[0047] Substrate voltage 340V;

[0048] Step ...

Embodiment 2

[0092] Step 1: Preparation of aluminum white film by magnetron sputtering coating

[0093] (1) Unbalanced magnetron sputtering coating equipment

[0094] (2) Film structure: arch wire / aluminum

[0095] (3) Preparation of coating process:

[0096] The film thickness of the first layer (aluminum) is about 0.3 microns;

[0097] Coating vacuum (3×10 -3 Pa);

[0098] Coating temperature (250°C);

[0099] Argon pressure (0.5pa);

[0100] Aluminum pre-sputtering time 15min;

[0101] Aluminum coating time 10min;

[0102] Aluminum target pulse voltage 350V;

[0103] Substrate voltage 340V;

[0104] Step 2: Preparation of transparent silicon dioxide film by magnetron sputtering coating

[0105] (1) Unbalanced magnetron sputtering coating equipment

[0106] (2) Film structure: arch wire / aluminum / silicon dioxide

[0107] (3) Preparation of coating process:

[0108] The film thickness of the second layer (silicon dioxide) is about 1.6 microns;

[0109] Coating vacuum (3×10 -...

Embodiment 3

[0117] Step 1: Preparation of aluminum white film by magnetron sputtering coating

[0118] (1) Unbalanced magnetron sputtering coating equipment

[0119] (2) Film structure: arch wire / aluminum

[0120] (3) Preparation of coating process:

[0121] The film thickness of the first layer (aluminum) is about 0.3 microns;

[0122] Coating vacuum (3×10 -3 Pa);

[0123] Coating temperature (250°C);

[0124] Argon pressure (0.5pa);

[0125] Aluminum pre-sputtering time 15min;

[0126] Aluminum coating time 10min;

[0127] Aluminum target pulse voltage 350V;

[0128] Substrate voltage 340V;

[0129] Step 2: Preparation of transparent silicon dioxide film by magnetron sputtering coating

[0130] (1) Unbalanced magnetron sputtering coating equipment

[0131] (2) Film structure: arch wire / aluminum / silicon dioxide

[0132] (3) Preparation of coating process:

[0133] The film thickness of the second layer (silicon dioxide) is about 1.6 microns;

[0134] Coating vacuum (3×10 -...

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Abstract

The invention discloses a metal aesthetic arch wire for orthodontics and a preparation method thereof. The metal aesthetic arch wire for orthodontics sequentially includes an orthodontic metal arch wire base, an aluminum film layer and a silicon dioxide film layer from the inside to the outside; the preparation thereof The method comprises the following steps: first preparing an aluminum film layer on the surface of the arch wire base body by magnetron sputtering, and then preparing a silicon dioxide film layer on the surface of the aluminum film layer. The metallic aesthetic arch wire for orthodontics prepared by the present invention is sputtered with Al-SiO on the surface of the arch wire by magnetron sputtering 2 The coating has good biological safety, corrosion resistance, friction resistance and strong binding force, and the color of the prepared aesthetic arch wire is white to milky white, which is very beautiful. Therefore, the Al‑SiO 2 It is feasible and clinically important for coated metal aesthetic archwires to be used in orthodontic treatment.

Description

technical field [0001] The invention relates to a metal aesthetic archwire for orthodontics and a preparation method thereof, belonging to the technical field of surface treatment. Background technique [0002] In order to improve the performance of orthodontic archwires to meet the needs of clinicians, the existing technology uses a variety of material surface treatment processes to achieve surface modification of archwires, in order to reduce the friction coefficient of orthodontic archwires and improve clinical Treatment efficiency, while endowing the archwire surface with good corrosion resistance, biocompatibility and increasingly valued aesthetic properties. However, the existing aesthetic coating is expensive and has poor color stability. The aesthetic coating is easy to fall off under the action of chewing force and salivary enzymes in the oral cavity. The white aesthetic coating will change color over time. At the same time, the existing aesthetic arch wire Corrosi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/16C23C14/10C23C14/35A61C7/20
CPCC23C14/16C23C14/165C23C14/10C23C14/35A61C7/20
Inventor 刘奕孙超杨洁郑博文时逸冉君一刘崇良刘艺张明月
Owner HOSPITAL OF STOMATOLOGY CHINA MEDICAL UNIV
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