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Metal aesthetic arch wire for orthodontics and preparation method thereof

A technology for orthodontics and metal, applied in the direction of arch wire, metal material coating process, ion implantation plating, etc., can solve the problems of easy falling off of aesthetic coating, weak corrosion ability of arch wire, poor color stability, etc., and achieve controllable Film thickness, ease of sputtering, low cost effects

Active Publication Date: 2020-06-23
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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  • Metal aesthetic arch wire for orthodontics and preparation method thereof
  • Metal aesthetic arch wire for orthodontics and preparation method thereof
  • 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 comprises an orthodontic metal arch wire matrix, an aluminum film layer and a silicon dioxide film layer from inside to outside; and the preparation method comprises the following steps of firstly preparing the aluminum film layer on thesurface of the arch wire matrix through a magnetron sputtering method, and then preparing the silicon dioxide film layer on the surface of the aluminum film layer. According to the metal aesthetic arch wire for orthodontics, an Al-SiO2 coating is prepared on the surface of the arch wire through magnetron sputtering, so that the metal aesthetic arch wire has good biological safety, corrosion resistance, friction resistance and strong binding force, and the prepared aesthetic arch wire is white to milky white in color and is very attractive; and therefore, the application of the metal aestheticarch wire with the Al-SiO2 coating for orthodontic treatment to orthodontic treatment is feasible, and the metal aesthetic arch wire with the Al-SiO2 coating for orthodontic treatment has important clinical significance.

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 Applications(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