KR20070015629A - Method for manufacturing wire for correcting a set of t - Google Patents

Abstract

A manufacturing method of a wire for correcting a set of teeth is provided to prevent the change of the color of a transparent metal material by applying a parylene film after applying a transparent metal material on a wire for correcting a set of teeth. The manufacturing method of a wire for correcting a set of teeth includes the steps of: manufacturing a metal wire with a metal alloy material; chemically etching the surface of the metal wire(21) and performing heat treatment; vacuum depositing metal material(23) on the surface of the metal wire; vacuum depositing transparent metal oxide film(24) on the metal material vacuum deposed on the surface of the metal wire; and forming a transparent parylene film(25) on the transparent metal oxide and then performing heat treatment.

Description

Method for manufacturing wire for correcting a set of teeth}

1 is a schematic and sectional view of a conventional orthodontic wire.

2 is a schematic view and a cross-sectional view of an orthodontic wire manufactured according to an embodiment of the present invention.

3 is a structural formula of dimers according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10, 20: orthodontic wire 11, 21: metal wire

13: Teflon coating film 23: metal material

24 metal oxide film 25 parallel film

The present invention relates to a method for manufacturing the orthodontic wire, and more particularly to a method for manufacturing the orthodontic wire that can continue to maintain the tooth color without harming the human body.

For example, as the periodontitis is destroyed by the progression of periodontal tissue, the periodontal tissue is sequentially destroyed from the edge of the gum, and the alveolar bone gradually disappears, so-called, periodontal abscess Symptoms appear. As for the treatment method of the tooth of the alveolar rash, the fluctuations are severe and extraction is performed for the tooth which does not have a preservation hope, but there is little agitation which is close to this for the tooth which shakes, but there is hope of preservation There is a method of fixing with the teeth.

When fixing a plurality of adjacent teeth, the use of metal wires is common. This is a method of winding a metal wire around a plurality of teeth to be fixed using the elasticity of the metal wire, applying a load load generated by bending or stretching the metal wire to these teeth, and fixing the tooth by this load.

In the above-described method, the metal wire is seen from the front when the patient always feels pain, suffers from discomfort, and opens his mouth because of the load that is used and added to the work of sequentially fixing the metal wire to the tooth. There is a problem that it is not good to see.

Therefore, a method of fixing teeth by using a shape memory alloy has recently been proposed. These methods heat-treat the wire-shaped straightening member made of shape memory alloy so that the shape of a hair-shaped state may become a desired shape, ie, an anatomically correct tooth shape previously, and this straightening member Is installed in accordance with the patient's dentition in a low temperature environment, heated to return to its original shape, and the orthodontics are corrected by elastic force.

1 is a schematic view and a cross-sectional view of a conventional orthodontic wire.

As shown in FIG. 1A, the orthodontic wire 10 is similar in appearance to a general wire. However, since it is internally different from the general wire, the shape and manufacturing process thereof will be briefly described with reference to FIG.

FIG. 1B is a cross-sectional view of a portion “A” of the orthodontic wire shown in FIG. 1A.

As shown in FIG. 1B, the conventional orthodontic wire 10 includes a metal wire 11 and a Teflon coating film 13 formed on the metal wire 11 surface. The metal wire 11 may be a metal wire formed of a general metal wire or a shape memory alloy. The Teflon coating layer 13 is formed by coating the surface of the metal wire 11 by various coating methods. The Teflon coating film 13 is coated close to the tooth color.

As described above, in the related art, a teflon coating film was formed on the surface of the metal wire to form a tooth color, so that the orthodontic wire was formed. Therefore, it is urgent to provide an orthodontic wire that is harmless to the human body.

The present invention was devised to solve the above problems of the prior art, and an object of the present invention is to provide a method for manufacturing orthodontic wire that can maintain the tooth color continuously and harmless to the human body.

In order to solve the technical problem as described above, the constituent means of the orthodontic wire manufacturing method proposed by the present invention, in the orthodontic wire manufacturing method, manufacturing a metal wire from a metal alloy material, the surface of the metal wire Performing a heat treatment process, vacuum depositing a metal material such that the surface of the metal wire is white, and vacuum depositing a transparent metal oxide film on the metal material vacuum deposited on the metal wire surface. Step, after forming a transparent paraline film on the transparent metal oxide, characterized in that it comprises a step of performing a heat treatment.

In addition, the metal wire is formed of any one of stainless steel, NiTi, nickel (Ni) alloy, titanium (Ti) alloy, copper Cu-based alloy, aluminum (Al) -based alloy.

In addition, before chemically etching the surface of the metal wire, the surface of the metal wire may be ultrasonically cleaned using an alkali, an organic solvent, or ultrapure water.

In addition, the surface etching of the metal wire is any one or a mixture of CuCl ₂ , FeCl ₃ , HCl, H ₂ SO ₄ , HNO ₃ , H ₃ PO ₄ , HF, H ₂ O ₂ mixed with H ₂ O or an organic solvent It is characterized in that it is carried out using the prepared etching solution.

In addition, the metal wire is characterized in that the surface is treated by electrolytic or electroless etching in the etching solution.

In addition, the metal wire is characterized in that the bent having a width and depth of 0.1㎛ ~ 20㎛ by the surface treatment, the surface-treated metal wire is wet using any one of alkali, solvent and water It is preferred to be cleaned.

In addition, after the chemical etching, the heat treatment process is carried out in an atmospheric pressure or a vacuum chamber, characterized in that for 1 hour to 24 hours at a temperature of 100 ~ 250 ℃.

In addition, the metal material deposited on the surface of the metal wire may be sputtering, thermal vacuum evaporation, e-beam evaporation, ion plating, or vacuum spraying using plasma. It is characterized in that the vacuum deposition using any one of the law.

In addition, the metal material vacuum deposited on the surface of the metal wire is any one of silver (Ag), zinc (Zn), tin (Sn), indium (In), nickel (Ni), chromium (Cr), aluminum (Al). Or a mixture.

In addition, the vacuum deposited metal material is characterized in that deposited on the entire surface of the metal wire in a thickness of 0.1 ~ 10㎛.

In addition, the metal material vacuum deposited on the surface of the metal wire is characterized in that it is carried out between 15 ℃ ~ 300 ℃.

In addition, the transparent metal oxide film is formed using any one of sputtering method, thermal vacuum evaporation method, e-beam evaporation method, ion plating method. It is done.

In addition, the transparent metal oxide film is characterized in that formed by coating a sol (sol) raw material consisting of grains of the nano-particle size using a vacuum spray injection method.

In addition, the transparent metal oxide film is ITO, ZnO, TiO ₂ , Al ₂ O ₃ , Ta ₂ O ₅ , ZrO ₂ , SiO ₂ , GeO ₂ , Y ₂ O ₃ , La ₂ O ₃ , HfO ₂ , CaO, In ₂ O ₃ , SnO ₂ , MgO, WO ₂ and WO ₃ , or a mixture thereof.

In addition, the transparent metal oxide film is characterized in that deposited to a thickness between 10 사이 ~ 1㎛.

In addition, the transparent metal oxide film is characterized in that carried out at a temperature between 15 ℃ to 300 ℃ in a vacuum chamber.

In addition, the transparent metal oxide film is characterized by being formed by flowing an oxygen gas between 1 ~ 200sccm into the vacuum chamber.

In addition, the transparent metal oxide film is formed by plasma treatment, 50sccm ~ 500sccm of argon gas flows, the plasma pressure of the transparent metal oxide film is characterized in that the chamber pressure is maintained at 1 ~ 20mTorr.

In addition, the transparent paraline film is C (Di-chloro-para-xylylene) -type, N (Di-para-xylylene) -type, D (Tetra-chloro-para-xylylene) -type, F (Octafluoro- [ 2,2] at least one of para-xylylene) -type, HT-type, A-type, and AM-type dimer.

In addition, the transparent paraline film vaporizes the dimer at a temperature of 50 to 250 ° C. in a vaporizer, and decomposes it into a monomer while passing through a pyrolysis at a temperature of 550 to 750 ° C. In the vacuum chamber, the partial pressure of the monomer is maintained at 10 to 100 mTorr, and the monomers are deposited on the surface of the transparent metal oxide film.

In addition, after forming the transparent paraline film, the heat treatment is carried out at a temperature between 50 ℃ ~ 400 ℃, it characterized in that for 1 minute to 48 hours.

Hereinafter, the operation and the preferred embodiment related to the orthodontic wire manufacturing method of the present invention consisting of the above-described constituent means will be described in detail.

Figure 2 is a schematic view and a cross-sectional view of the orthodontic wire produced by the orthodontic wire manufacturing method according to an embodiment of the present invention.

As shown in FIG. 2A, the orthodontic wire 20 is similar in appearance to a general wire. However, since it is internally different from the general wire, the shape and manufacturing process thereof will be described with reference to FIG.

FIG. 2B is a cross-sectional view of a portion “A” of the orthodontic wire shown in FIG. 2A to illustrate the embodiment of the present invention.

As shown in (b) of FIG. 2, the orthodontic wire 20 according to the embodiment of the present invention is formed of a metal wire 21 that is elongated and white of vacuum deposition on the surface of the metal wire 21. And a metal material 23, a transparent metal oxide film 24 vacuum deposited on the surface of the metal material 23, and a paraline film 25 formed on the transparent metal oxide film 24.

The metal wire 21 is formed using a metal alloy including a general metal material and a shape memory alloy material. The metal alloy material for forming the metal wire 21 is formed of any one of stainless steel, NiTi, nickel (Ni) alloy, titanium (Ti) alloy, copper (Cu) alloy, and aluminum (Al) alloy. It is preferable.

Usually, metals do not return to their original shape when warmed or cooled by deformation beyond their elastic limits. Some alloys, however, are molded into a suitable shape at high temperatures, then deformed at room temperature and then heated again to return to their original shape.

This effect is called the shape memory effect, which occurs because the alloy stores the given shape as an atomic array. This effect appears in the transformation alloy, not by diffusion, where the high-molecular parent array is remembered even when it is deformed at low temperatures, and then rearranges back to its original atomic arrangement when the high temperature returns.

This effect simultaneously with shape recovery, a large force is generated. Because of the force generated, shape memory alloys are used not only as sensing elements but also for clamping mechanical parts. Therefore, the teeth can be corrected by using a metal wire formed of a shape memory alloy material.

The metal material 23 vacuum-deposited on the surface of the metal wire 21 formed using the shape memory alloy material and the general metal alloy material may have a white color similar to a tooth color on the surface of the metal wire 21. Make sure

The metal material 23 vacuum deposited on the surface of the metal wire 21 may be sputtered using plasma, thermal vacuum evaporation, e-beam evaporation, or ion plating. ), Using a vacuum spray injection method.

The white metal material 23 vacuum deposited on the surface of the metal wire 21 includes silver (Ag), zinc (Zn), tin (Sn), indium (In), nickel (Ni), chromium (Cr), and aluminum. It is preferable that any one or at least two of (Al) are mixed materials.

A transparent metal oxide film 24 is vacuum deposited on the surface of the white metal material 23, and the transparent metal oxide film 24 is formed of ITO, ZnO, TiO ₂ , Al ₂ O ₃ , Ta ₂ O ₅ , ZrO _2. , SiO _2, GeO ₂ , Y ₂ O ₃ , La ₂ O ₃ , HfO ₂ , CaO, In ₂ O ₃ , SnO ₂ , MgO, WO ₂ , WO ₃ Either or a mixture thereof is formed by vacuum deposition.

The transparent metal oxide film 24 preferably has a thickness of between 10 μm and 1 μm. In order to form the transparent metal oxide film 24 having such a thickness, sputtering and electron beam deposition methods using plasma ( It is preferable to use any one of e-beam evaporation, thermal evaporation, and ion plating. In addition, it may be formed by coating the raw material in the sol state consisting of grains of nano-particle size using a vacuum spray injection method.

The transparent metal oxide film 24 is formed by coating a transparent parylene film 25, which is a polymer compound. The transparent paraline layer 25 coated on the surface of the transparent metal oxide layer 24 may be formed to a thickness of 0.1 μm to 100 μm.

The paraline is a material that has been proved to be harmless to the human body, and is uniformly coated on the transparent metal oxide layer 24, has good surface roughness, and soft to the touch. Make sure you have a good texture when worn on your teeth.

Referring to the method of manufacturing the orthodontic wire according to an embodiment of the present invention having the above structure as follows.

First, the metal wire 21 is manufactured from a metal alloy material. That is, the metal wire 21 is manufactured using any one of nickel (Ni) alloy, stainless steel, NiTi, titanium (Ti) alloy, copper (Cu) alloy, and aluminum (Al) alloy, which are metal alloy materials. do. Such a metal wire 21 has an elastic force and a tensile force.

When the metal wire 21 is manufactured, the surface of the metal wire 21 is chemically etched. Then, a heat treatment process is performed. Before chemically etching the surface of the metal wire 21, it is preferable to ultrasonically clean the surface of the metal wire using an alkali, an organic solvent, or ultrapure water. That is, it is preferable to clean the surface of the metal wire 21 before performing chemical etching.

The etching of the surface of the metal wire 21 may use an etching solution capable of forming a predetermined bend. In the present invention, CuCl ₂ , FeCl ₃ , HCl, H ₂ SO ₄ , HNO ₃ , H ₃ PO ₄ , HF and using the etching solution prepared by any of H ₂ O ₂ or a mixture of H ₂ O or a mixture of the organic solvent (methanol, ethanol and isopropyl alcohol, etc.).

The metal wire 21 is electrolytically or electrolessly etched in the state of being immersed in the etching solution to be surface treated. By the surface treatment, the surface of the metal wire 21 is bent in a predetermined shape. That is, the metal wire 21 is bent to have a width and depth of 0.1㎛ ~ 20㎛ by the surface treatment. The surface-treated metal wire is preferably wet cleaned using any one of alkali, solvent and water.

The metal wire 21 surface-treated by chemical etching as described above is heat treated under a predetermined condition. After the chemical etching, the heat treatment process is carried out in an atmospheric pressure or a vacuum chamber, it is preferable to proceed for 1 to 24 hours at a temperature of 100 ~ 250 ℃.

The surface of the metal wire 21 subjected to the heat treatment under the above conditions is vacuum-deposited with the metal material 23 so as to have a white color. The metal material deposited on the surface of the metal wire may be sputtered by plasma, thermal vacuum evaporation, e-beam evaporation, ion plating, or vacuum spray spraying. It is formed using either.

The metallic material which is vacuum deposited on the surface of the metal wire 21 to have a white color similar to that of teeth is silver (Ag), zinc (Zn), tin (Sn), indium (In), nickel (Ni), and chromium (Cr). It is preferable that any one or at least two or more of aluminum (Al) is mixed.

The metal material 23, which is vacuum deposited on the surface of the metal wire 21 by the same material, is deposited on the entire surface of the metal wire 21 to a thickness between 0.1 μm and 10 μm. The metal material 23 is vacuum deposited on the surface of the metal wire 21 is characterized in that it is carried out between 15 ℃ ~ 300 ℃.

As described above, after vacuum depositing the metal material 23 having a white color on the entire surface of the metal wire 21, a transparent metal oxide film 24 is vacuum deposited on the metal material 23.

The transparent metal oxide layer 24 may be formed using any one of sputtering, thermal vacuum evaporation, e-beam evaporation, and ion plating. It is formed on the material (23).

On the other hand, the transparent metal oxide film 24 is coated with a sol (sol) raw material consisting of grains of nano-particle size by using a vacuum spray spraying method to the metal May be formed on the material 23.

The transparent metal oxide layer 24 may be formed of various metal oxides as long as the transparent metal oxide layer 24 has a transparent color. In the present invention, ITO, ZnO, TiO ₂ , Al ₂ O ₃ , Ta ₂ O ₅ , ZrO ₂ , SiO ₂ , Any one or any of GeO ₂ , Y ₂ O ₃ , La ₂ O ₃ , HfO ₂ , CaO, In ₂ O ₃ , SnO ₂ , MgO, WO ₂ and WO ₃ It is preferable that it is a mixture which mixed at least two or more of them.

The transparent metal oxide layer 24 formed as described above should be formed to have a good wearing thickness when the dental orthodontic wire is worn on the teeth, and is preferably deposited to a thickness of approximately 10 μm to 1 μm.

In the case of vacuum deposition of the transparent metal oxide film 24, it is preferably carried out at a temperature of 15 ℃ to 300 ℃ in a vacuum chamber, the transparent metal oxide film 24 is between 1 to 200 sccm oxygen gas into the vacuum chamber It is formed by flowing. In addition, the transparent metal oxide film 24 is formed by plasma treatment, but flows argon gas of 50sccm ~ 500sccm, it is preferable to maintain the chamber pressure of 1 ~ 20mTorr during the plasma treatment of the transparent metal oxide film.

As described above, after the transparent metal oxide film 24 is formed on the metal material 23, the transparent paraline film 25 is formed on the transparent metal oxide film 24, and heat treatment is performed. As described above, the paralin film 25 may be coated to prevent discoloration of the white metallic material 23 and to form an orthodontic wire that is harmless to the human body.

The transparent paraline film 25 is formed on the transparent metal oxide film 24 by using a dimer raw material, and the transparent paraline film 25 is a C (Di-chloro-para-xylylene) -type ( Figure 3 (a), N (Di-para-xylylene) -type (shown in Figure 3 (b)), D (Tetra-chloro-para-xylylene)-type (shown in Figure 3 (c)) , F (Octafluoro- [2,2] para-xylylene) -type (shown in (d) of FIG. 3), HT-type (shown in (e) of FIG. 3), A-type (shown in (f) of FIG. 3) ), AM-type (shown in FIG. 3 (g)) dimer.

The transparent paraline film 25 vaporizes the dimer at a temperature of 50 to 250 ° C. in a vaporizer and decomposes it into a monomer while passing through a pyrolysis at a temperature of 550 to 750 ° C. Thereafter, the monomers are deposited on the surface of the transparent metal oxide film while maintaining a partial pressure of a monomer at 10 to 100 mTorr in a vacuum chamber.

After the transparent paraline film 25 is formed as described above, heat treatment is performed. The heat treatment is performed at a temperature between 50 ° C. and 400 ° C., and preferably for 1 minute to 48 hours. Through such heat treatment, the bonding force between the components of the orthodontic wire is strengthened, thereby improving the overall strength.

The present invention is not limited to the embodiments disclosed above, but can be implemented in various different forms, only the embodiments disclosed above to make the disclosure of the present invention complete, the invention to those skilled in the art It is provided to fully inform the category of.

According to the orthodontic wire manufacturing method of the present invention having the configuration and operation and the preferred embodiment as described above, by coating a transparent paraline film after coating the transparent metal material on the orthodontic wire, the transparent metal material of the tooth color Discoloration can be prevented, and while wearing on the teeth, because it gives a sense of unity with the teeth has the effect of reducing the aversion.

In addition, by coating the paraline film on the outermost surface, there is an advantage that can give a more improved fit to the teeth because it gives a soft texture and harmless to the human body.

Claims (22)

In the orthodontic wire manufacturing method, Manufacturing a metal wire from a metal alloy material; Chemically etching the surface of the metal wire, and then performing a heat treatment process; Vacuum depositing a metal material such that the metal wire surface is white in color; Vacuum depositing a transparent metal oxide film on a metal material vacuum deposited on the metal wire surface; Forming a transparent paraline film on the transparent metal oxide, the method for producing orthodontic wire, characterized in that comprising the step of performing a heat treatment. The method according to claim 1, The metal wire is a method for manufacturing orthodontic wire, characterized in that formed of any one of stainless, NiTi, nickel (Ni) alloy, titanium (Ti) alloy, copper (Cu) alloy, aluminum (Al) alloy. . The method according to claim 1, Before the chemical etching of the surface of the metal wire, an orthodontic wire manufacturing method, characterized in that for cleaning the surface of the metal wire by using an alkali, an organic solvent or ultrapure water. The method according to claim 1, Surface etching of the metal wire is prepared by mixing any one or mixture of CuCl ₂ , FeCl ₃ , HCl, H ₂ SO ₄ , HNO ₃ , H ₃ PO ₄ , HF, H ₂ O ₂ with H ₂ O or an organic solvent Orthodontic wire manufacturing method characterized in that it is carried out using the prepared etching solution. The method according to claim 4, And the metal wire is electrolytically or electrolessly etched in the etching solution to be surface treated. The method according to claim 5, The metal wire is orthodontic wire manufacturing method characterized in that the bent having a width and depth of 0.1㎛ ~ 20㎛ by the surface treatment. The method according to claim 6, The surface-treated metal wire is a method for producing orthodontic wire, characterized in that the wet cleaning using any one of alkali, organic solvent and water. The method according to claim 1, After the chemical etching, the heat treatment process is carried out in an atmospheric pressure or a vacuum chamber, wherein the orthodontic wire manufacturing method, characterized in that proceeds for 1 to 24 hours at a temperature of 100 ~ 250 ℃. The method according to claim 1, The metal material deposited on the surface of the metal wire may be formed by sputtering, thermal vacuum evaporation, e-beam evaporation, ion plating, or vacuum spraying using plasma. Orthodontic wire manufacturing method characterized in that the vacuum deposition using any one. The method according to claim 9, The metal material vacuum deposited on the surface of the metal wire may be any one of silver (Ag), zinc (Zn), tin (Sn), indium (In), nickel (Ni), chromium (Cr), and aluminum (Al). Orthodontic wire manufacturing method characterized in that the substance. The method according to claim 10, The vacuum-deposited metal material is a method of manufacturing orthodontic wire, characterized in that deposited on the entire surface of the metal wire to a thickness of 0.1 ~ 10㎛. The method according to claim 10, The metal material is vacuum deposited on the surface of the metal wire is wire orthodontic wire manufacturing method, characterized in that carried out between 15 ℃ ~ 300 ℃. The method according to claim 1, The transparent metal oxide film is formed by any one of a sputtering method, thermal vacuum evaporation method, e-beam evaporation method, ion plating method Orthodontic wire manufacturing method. The method according to claim 1, The transparent metal oxide film is a method of manufacturing orthodontic wire, characterized in that formed by coating the sol (sol) raw material consisting of grains of the nano-particle size using a vacuum spray spraying method. The method according to claim 13 or 14, The transparent metal oxide film may be formed of ITO, ZnO, TiO ₂ , Al ₂ O ₃ , Ta ₂ O ₅ , ZrO ₂ , SiO ₂ , GeO ₂ , Y ₂ O ₃ , La ₂ O ₃ , HfO ₂ , CaO, In ₂ O ₃ , SnO ₂ , MgO, WO ₂ and WO ₃ or any one or a mixture thereof. The method according to claim 15, The transparent metal oxide film is a method of manufacturing orthodontic wire, characterized in that deposited to a thickness between 10Å ~ 1㎛. The method according to claim 13, The transparent metal oxide film is a method for producing orthodontic wire, characterized in that carried out at a temperature between 15 ℃ to 300 ℃ in a vacuum chamber. The method according to claim 13, The transparent metal oxide film is an orthodontic wire manufacturing method, characterized in that formed by flowing an oxygen gas between 1 ~ 200sccm into the vacuum chamber. The method according to claim 13, The transparent metal oxide film is formed by plasma treatment, 50sccm ~ 500sccm of argon gas flowing, during the plasma treatment of the transparent metal oxide film chamber pressure during the orthodontic wire manufacturing method, characterized in that to maintain 1 ~ 20mTorr. The method according to claim 1, wherein the parallel paraline film, C (Di-chloro-para-xylylene) -type, N (Di-para-xylylene) -type, D (Tetra-chloro-para-xylylene) -type, F (Octafluoro- [2,2] para-xylylene) At least one of type, HT-type, A-type, AM-type dimer, and the like. The method of claim 20, The transparent paraline film vaporizes the dimer at a temperature of 50 to 250 ° C. in a vaporizer, and decomposes it into a monomer while passing through a pyrolysis at a temperature of 550 to 750 ° C., followed by vacuum. A method for manufacturing orthodontic wires, characterized in that the monomers are deposited on the surface of the transparent metal oxide film while maintaining a partial pressure of monomers in the chamber at 10 to 100 mTorr. The method according to claim 1, After forming the transparent paraline film, the heat treatment is carried out at a temperature between 50 ℃ ~ 400 ℃, 1 minute to 48 hours, characterized in that proceeding for orthodontic wire manufacturing method.

Images