KR100919900B1 - method for manufacturing wire for correcting a set of teeth - Google Patents

Abstract

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.

The constituent means of the orthodontic wire manufacturing method of the present invention, in the orthodontic wire manufacturing method, the step of producing a metal wire from a metal alloy material, after the physical etching or chemical etching of the surface of the metal wire, heat treatment step Performing a heat treatment process, coating a transparent metal oxide film on the metal material to be coated on the surface of the metal wire, and coating the metal material such that the surface of the metal wire is white. Forming a transparent paraline film on the metal oxide, characterized in that it comprises the step of performing a heat treatment.

Teeth, straightening, wire

Description

Method for manufacturing wire for correcting a set of teeth}

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 It 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 an orthodontic wire that can maintain a tooth color and is harmless to a human body.

In order to solve the above problems, 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 After physical etching or chemical etching, performing a heat treatment process, coating a metal material to make the surface of the metal wire white, and then performing a heat treatment process to form a transparent paraline film on the white metal material. After that, characterized in that it comprises a step of performing a heat treatment.

In another orthodontic wire manufacturing method, the constituent means of the orthodontic wire manufacturing method includes the steps of manufacturing a metal wire from a metal alloy material, physically etching or chemically etching the surface of the metal wire, and then performing a heat treatment process. Performing a heat treatment process, coating a transparent metal oxide film on the metal material to be coated on the surface of the metal wire, and coating the metal material such that the surface of the metal wire is white. Forming a transparent paraline film on the metal oxide, characterized in that it comprises the step of performing a heat treatment.

Another means of constituting the orthodontic wire manufacturing method, in the orthodontic wire manufacturing method, manufacturing a metal wire from a metal alloy material, the metal wire by a mask that can wrap the back portion of the metal wire Masking a post portion of the metal wire, physically etching or chemically etching the surface of the metal wire, performing a heat treatment process, coating a metal material to make the surface of the metal wire white, and then performing a heat treatment process. And forming a transparent paraline film on the white metal material, and then performing a heat treatment.

Another means of constituting the orthodontic wire manufacturing method, in the orthodontic wire manufacturing method, manufacturing a metal wire from a metal alloy material, the metal wire by a mask that can wrap the back portion of the metal wire Masking a post portion of the metal wire, physically etching or chemically etching the surface of the metal wire, performing a heat treatment process, coating a metal material to make the surface of the metal wire white, and then performing a heat treatment process. And a step of coating a transparent metal oxide film on the metal material coated on the surface of the metal wire, forming a transparent paraline film on the transparent metal oxide, and then performing heat treatment.

In another orthodontic wire manufacturing method, the constituent means of the orthodontic wire manufacturing method includes the steps of: manufacturing a metal wire from a metal alloy material, forming a masking paraline film on the surface of the metal wire, and then Removing the masking paraline film formed on the anterior portion of the metal wire, physically etching or chemically etching the anterior surface of the metal wire, and then performing a heat treatment process, only the anterior portion of the metal wire, or the anterior portion and the masking paraline film surface Coating a metallic material to give a white color, and then performing a heat treatment process, forming a transparent paraline film on the white metal material, and then performing a heat treatment, sequentially forming the post portion of the metal wire. Masking paraline film and transparent paraline film or the masking paraline film, white metal And removing the substance and the transparent paraline film.

The metal wire may be formed of any one of stainless steel, NiTi, nickel (Ni) alloy, titanium (Ti) alloy, copper (Cu) alloy, and aluminum (Al) alloy.

Here, before physically etching or chemically etching the surface of the metal wire, the metal wire is wet cleaned using an alkali, an organic solvent or ultrapure water.

Here, 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.

Here, the metal wire is characterized in that the bent having a width and depth of 0.1㎛ ~ 50㎛ by the surface treatment.

Here, the surface-treated metal wire is characterized in that the wet cleaning using any one of an alkali, an organic solvent and water.

In addition, the surface etching of the metal wire is characterized in that it is performed by sand blasting (sand blasting) using fine grains of ceramic or metal material.

In addition, the grain size is characterized in that the range of 1nm ~ 100㎛.

In addition, after the physical or chemical etching of the surface of the metal wire, the heat treatment process is carried out in an atmospheric pressure or a vacuum chamber, characterized in that for 1 minute to 48 hours at 50 ~ 300 ℃ temperature.

In addition, the metal material to be coated on the surface of the metal wire is characterized in that the coating using wet electroplating or dry plating.

Here, the metal material coated on the metal wire surface is silver (Ag), zinc (Zn), tin (Sn), indium (In), platinum (Pt), tungsten (W), nickel (Ni), chromium (Cr ), Aluminum (Al), palladium (Pd) any one or characterized in that the mixture.

Here, the metal material to be coated is characterized in that the coating on the surface of the metal wire with a thickness between 0.1 ~ 20㎛.

In addition, the metal material coated 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 it is formed using any one of judicial and wet electroplating.

In addition, after the metal wire surface is coated with a white metal material, the surface of the metal wire is ultrasonically cleaned using an alkali, an organic solvent, or ultrapure water.

In addition, after the coating of the metal material, the heat treatment process is carried out in an atmospheric pressure or vacuum chamber, characterized in that for 1 minute to 48 hours at a temperature of 50 ~ 300 ℃.

In addition, the surface of the white metal material may be chemically etched and then subjected to a heat treatment process.

The surface etching of the metal material may be performed using an etching solution prepared by mixing any one or a mixture of HCl, H ₂ SO ₄ , HNO ₃ , and H ₂ O ₂ with H ₂ O.

Here, the surface etching of the metal material is characterized in that for 1 second to 5 minutes at a temperature of 10 ~ 100 ℃.

Here, after the chemical etching of the surface of the metal material, the heat treatment process is carried out in an atmospheric pressure or a vacuum chamber, characterized in that for 1 minute to 48 hours at a temperature of 50 ~ 300 ℃.

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.

The transparent metal oxide film may be formed using any one of sputtering, thermal vacuum evaporation, e-beam evaporation, and ion plating. .

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.

Here, the transparent metal oxide film is characterized in that it is coated with a thickness between 1nm ~ 1㎛.

Here, the transparent metal oxide film is characterized in that the coating at a temperature between 15 ℃ to 300 ℃ in a vacuum chamber.

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.

Here, the thickness of the transparent parallel film is characterized in that the range of 1㎛ ~ 50㎛.

In addition, after the transparent paraline film is formed, the heat treatment is carried out at a temperature between 50 ℃ to 250 ℃ in an atmospheric pressure or vacuum chamber, characterized in that for 1 minute to 48 hours.

In addition, the mask is characterized in that formed of a polymer or metal material.

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.

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.

2 is a schematic view and a cross-sectional view of the orthodontic wire manufactured 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 includes a metal wire 21 that is elongated and a white metal coated on the surface of the metal wire 21. A material 23, a transparent metal oxide film 24 coated on the surface of the metal material 23, and a transparent paraline film 25 formed on the transparent metal oxide film 24 are included. The transparent metal oxide film 24 may or may not be present between the white metal material 23 and the transparent paraline film 25.

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 using a metal wire formed of a shape memory alloy material.

The metal material 23 coated on the surface of the metal wire 21 formed by using the shape memory alloy material and the general metal alloy material may have a white color similar to the tooth color so as to float on the surface of the metal wire 21. do.

The metal material 23 coated on the surface of the metal wire 21 is coated using wet electroplating or dry plating.

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

A transparent metal oxide film 24 may be coated on the surface of the white metal material 23, wherein 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 between 1 nm and 1 μm, and in order to form the transparent metal oxide film 24 having such a thickness, a sputtering method and an electron beam deposition method using plasma. (e-beam evaporation), thermal evaporation (thermal evaporation), it is preferable to use any one of the ion plating (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.

On the white metal material 23 or the transparent metal oxide film 24, a transparent parylene film 25, which is a polymer compound, is coated. The transparent paraline film 25 coated on the surface of the transparent metal oxide film 24 may be formed to have a thickness between 1 μm and 50 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.

The step of manufacturing the orthodontic wire according to the first embodiment of the present invention comprises the steps of manufacturing a metal wire from a metal alloy material, physical etching or chemical etching the surface of the metal wire, performing a heat treatment process, Coating the metal material so that the surface of the metal wire is white, and then performing a heat treatment process, forming a transparent paraline film on the white metal material, and then performing heat treatment.

In the meantime, in the orthodontic wire manufacturing method according to the second embodiment of the present invention, before the transparent paraline film is formed on the white metal material, coating the transparent metal oxide film on the metal material coated on the metal wire surface. Can be performed. That is, after coating the metal material so that the surface of the metal wire is white, and after performing a heat treatment process, the step of coating a transparent metal oxide on the metal material. Then, after forming a transparent paraline film on the transparent metal oxide, a heat treatment process is performed.

On the other hand, the orthodontic wire manufacturing method according to the third embodiment of the present invention is configured to include a masking process in the orthodontic wire manufacturing method according to the first embodiment.

That is, before the physical etching or chemical etching of the surface of the metal wire, masking the back portion of the metal wire by a mask that can wrap the back portion of the metal wire further comprises a configuration of the present invention It is a manufacturing process of the orthodontic wire which concerns on 3rd Example.

Here, the post portion of the metal wire means a portion of the orthodontic wire to correct the molar portion. Therefore, the anterior portion of the metal wire means a portion for correcting the front teeth and the fangs.

The reason for masking the posterior portion of the metal wire, which is the portion for correcting the molar as described above, is to perform the correction of the molar only with the metal wire not coated with the paraline film. To correct the molars, more force must be applied than the canine or incisor and the sliding effect of the orthodontic wire should be good during the calibration process.

As described above, in order to add more force to the molar teeth and improve the sliding effect, it is preferable that the part of the orthodontic wire for correcting the molar teeth (the posterior part) is formed only of the metal wires without forming a parallel film. Therefore, in the manufacturing process of the orthodontic wire, the process of masking the back portion of the metal wire by a mask is required.

3 shows that the back portion of the metal wire 21 is masked by a mask. As described above, one method of masking the posterior part of the metal wire 21 by a mask may include a tube 27 made of a resilient material or a box through which the posterior part may be inserted. It can be attached to the back part of the). At this time, the elastic tube 27 or box used as the mask is formed of a polymer or metal material. That is, the mask can be formed of a polymer such as silicone or a rubber product such as urethane.

Another method of masking the post portion of the metal wire 21 is to use a masking jig to prevent the post portion from being exposed to the outside. This can prevent the posterior portion from being coated with paraline. The masking jig is made of polymer, metal or rubber material, and is fixed while masking the posterior part. Then, even when the paraline coating proceeds, the posterior portion does not have a paraline coating.

On the other hand, the method of manufacturing the orthodontic wire according to the fourth embodiment further comprises the step of coating a transparent metal oxide film in the method of manufacturing the orthodontic wire according to the third embodiment described above.

That is, the method for manufacturing the orthodontic wire according to the fourth embodiment includes a step of masking the back portion of the metal wire before physically etching or chemically etching the surface of the metal wire, and whitening the transparent paraline film. Prior to forming on the metal material, the step of coating a transparent metal oxide film on the white metal material is further performed. Thus, the transparent metal oxide film is formed between the white metal material and the transparent paraline film.

On the other hand, the method for manufacturing the orthodontic wire according to the fifth embodiment has a configuration such that the post portion of the metal wire is not coated with the parallel film, as in the third and fourth embodiments. However, it is characterized by using a paraline film as a masking means, without using a tube or a jig as a masking means.

4 is a process chart for explaining a method for manufacturing the orthodontic wire according to the fifth embodiment.

As shown in FIG. 4, the method for manufacturing the orthodontic wire according to the fifth embodiment of the present invention proceeds as follows.

First, a metal wire 21 is manufactured from a metal alloy material, and a masking paraline film 27 is formed on the surface of the metal wire, and then the masking paraline film formed on the anterior portion of the metal wire is removed (S1).

Then, the surface of the anterior portion of the metal wire is physically etched or chemically etched, and then a heat treatment process is performed. This process is to smoothly proceed to the next process, metal material coating. That is, the heat treatment process is performed after the etching process so that the metal material can be well coated on the metal wire.

Then, the metal material 23 is coated on only the anterior portion of the metal wire 21 or the surface of the anterior portion and the masking paraline layer 27 is coated, and then heat treatment is performed (S2). In FIG. 4, the white metal material 23 is coated only on the anterior portion of the metal wire 21. However, in some cases, the white metal material 23 may be applied on the masking parallel film 27 as well as the anterior portion. Can be coated. An electroplating method may be used to coat the white metal material only on the anterior portion, and a deposition method may be used to simultaneously coat the masking parallel film 27.

Thereafter, a transparent paraline film 25 is formed only on the white metal material 23 or on the white metal material 23 and the masking paraline film 27, and then heat treatment is performed (S3). In FIG. 4, since the white metal material 23 is coated only on the anterior portion of the metal wire 21, the transparent paraline layer 25 is a white metal material 23 coated on the anterior portion and a masking parallel formed on the anterior portion. It is formed in the lean film 27. Of course, even in this case, the transparent paraline layer 25 may be formed only on the white metal material 23 formed on the anterior portion.

Then, the masking paraline layer 27 and the transparent paraline layer 25 or the masking paraline layer 27, the white metal material 23, and the transparent parallel formed sequentially on the back portion of the metal wire 21. The lean film 23 is removed (S4). FIG. 4 illustrates that the masking paraline layer 27 and the transparent paraline layer 25 are removed because the white metal material is not coated on the posterior portion. As described above, the masking paraline film 27 or the like formed on the back portion of the metal wire 21 can be removed in various ways. For example, it can be easily removed by peeling off after scratching with a knife.

Referring to each step of the orthodontic wire manufacturing method of the present invention composed of the above-described means in detail as follows.

Referring to each step of the orthodontic wire manufacturing method consisting of the above steps in detail as follows.

First, the metal wire 21 is manufactured from a metal alloy material. That is, the metal wire may be formed using any one of nickel (Ni) alloy, stainless steel (SUS), NiTi, titanium (Ti) alloy, copper (Cu) alloy, and aluminum (Al) alloy as a metal alloy material. 21) is prepared. Such a metal wire 21 has an elastic force and a tensile force.

Once the metal wire 21 is manufactured, in the first and second embodiments, the surface of the metal wire 21 is subjected to physical etching or chemical etching. Then, a heat treatment process is performed. Before physically or chemically etching the surface of the metal wire 21, it is preferable to wet-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 physical etching or 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 one or a mixture of H ₂ O ₂ to H ₂ O or a mixture of organic solvents (methanol, ethanol, 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 by the surface treatment having a width and depth of 0.1㎛ ~ 50㎛. The surface-treated metal wire is preferably wet cleaned using any one of alkali, solvent and water.

Meanwhile, the surface etching of the metal wire 21 may be performed by sand blasting using fine grains of ceramic or metal. When the metal wire 21 is subjected to surface etching by the sandblasting method, irregular fine grooves are formed on the surface of the metal wire 21. The size of the fine grains used in the sandblasting method is preferably in the range between 1 nm and 100 μm.

6A to 6D are micrographs of the metal wire 21 surface treated by electrochemical etching. 6A is a micrograph after etching a stainless steel (SUS) metal wire 21 with HCl for 20 minutes (at a temperature of 45 ° C.), and FIG. 6B shows sulfuric acid of a stainless steel metal wire 21. And a photomicrograph after etching for 5 minutes (at 70 ° C. temperature) with a solution of 1: 2 mixed with water, and FIG. 6C shows a metal wire 21 made of NiTi with FeCl ₃ aqueous solution for 1 minute (40 ° C. temperature). 6D is a photomicrograph after etching the NiTi metal wire 21 with FeCl ₃ aqueous solution for 1 minute (at a temperature of 50 ° C.).

The metal wire 21 surface-treated by physical etching or chemical etching as described above is heat-treated under predetermined conditions. After the chemical etching, the heat treatment process is carried out in a vacuum chamber within atmospheric pressure or 0.1mTorr, it is preferable to proceed for 1 minute to 48 hours at 50 ~ 300 ℃ temperature.

On the other hand, in the third and fourth embodiments according to the present invention, the post portion of the metal wire is masked by a mask that can cover the post portion of the metal wire before the surface treatment (physical or chemical etching) of the metal wire described above. To perform the process. This masking process is to prevent the parallel film from being formed in the back portion of the metal wire.

As described above, the mask may correspond to a flexible tube or a box into which the back end of the metal wire may be drawn, or a masking jig to prevent the back end of the metal wire from being exposed to the outside. The mask may be formed of a polymer or metal material or a rubber material. That is, the mask may be formed of rubber such as polymer such as silicon or urethane or various metal materials.

That is, by arranging the post portion of the orthodontic wire only with the metal wire without forming a paraline film, the post portion of the metal wire for correcting the molar teeth adds a strong force to the molars and increases the sliding effect, Calibration can be facilitated.

As described above, in the third and fourth embodiments, after the masking part of the metal wire is masked by a mask that can cover the backing part of the metal wire, the above-described physical etching or chemical etching is performed, and a heat treatment process is performed. do. The surface treatment and heat treatment processes of the metal wires in the third and fourth embodiments are the same as those described in the first and second embodiments described above. In addition, the surface treatment and heat treatment of the metal wire performed in the fifth embodiment are the same as in the above-described process.

The surface of the metal wire 21 subjected to heat treatment under the above conditions is coated with a metal material 23 so as to have a white color. The metal material deposited on the surface of the metal wire is coated by wet electroplating or dry plating.

In addition, the metal material coated on the surface of the metal wire 21 may be sputtering using plasma, thermal vacuum evaporation, e-beam evaporation, ion plating, It may be formed using any one of a vacuum spray injection method and wet electroplating.

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

After coating the surface of the metal wire 21 with a white metal material, it is preferable to ultrasonically clean the surface of the metal wire using an alkali, an organic solvent, or ultrapure water.

The metal material 23 coated on the surface of the metal wire 21 with the above material is coated on the surface of the metal wire 21 to a thickness of 0.1 to 20 μm. After coating the metal material 23 on the surface of the metal wire 21, a heat treatment process is performed.

After coating the metal material, the heat treatment process is performed in a vacuum chamber within atmospheric pressure or 0.1mTorr, characterized in that it is carried out for 1 minute to 48 hours at a temperature between 50 ℃ to 300 ℃.

The white metal material subjected to the heat treatment as described above is surface treated. That is, the surface of the white metal material subjected to the heat treatment process is chemically etched. Then, the heat treatment process is performed. Such a process is necessary to make it possible to easily form a transparent paraline film or a transparent oxide film to be formed on the white metal material.

However, such surface treatment of the white metal material is an optional process and is not necessarily a process to be performed.

When performing chemical etching on the surface of the metal material 23, a predetermined etching solution is used. That is, the surface etching of the metal material 23 is carried out by using the etching solution prepared by mixing the HCl, H ₂ SO _4, HNO _3, any one or a mixture of H ₂ O ₂ H ₂ 0.

FIG. 7A illustrates that after the white metal material 23 is coated on a NiTi metal wire surface, the surface of the metal material 23 is etched for 18 seconds using a mixed solution in which HNO ₃ and H ₂ O are mixed. The processed microscope (500 times magnified) is a photograph, Figure 7b is a coating of the white metal material 23 on the surface of the metal (SUS) metal wire, using a mixed solution mixed with HNO ₃ and H ₂ O By etching the surface of the metal material 23 for 50 seconds (500 times magnification) photograph.

Surface etching of the metal material 23 performed using the etching solution as described above is performed for 1 second to 5 minutes at a temperature between 10 ° C and 100 ° C. As such, after performing chemical etching on the surface of the metal material 23, a heat treatment process is performed. After chemically etching the surface of the metal material, the heat treatment process is performed in a vacuum chamber within atmospheric pressure or 0.1 mTorr, for 1 minute to 48 hours at a temperature between 50 ℃ to 300 ℃.

After performing the surface etching on the metal material 23 and performing the heat treatment process as described above, after the transparent metal oxide film 24 is coated, a transparent paraline film is formed (corresponding to the second and fourth embodiments). ), A transparent paraline layer may be formed directly without coating the transparent metal oxide layer 24 (corresponding to the first and third embodiments).

The transparent metal oxide layer 24 may be formed by any one of sputtering, thermal vacuum evaporation, e-beam evaporation, and ion plating. It is formed on the metal 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 It 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 film 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 coated with a thickness of approximately 1 nm 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 thickness of the transparent paraline film is preferably in the range of 1㎛ ~ 50㎛ in consideration of the fit.

On the other hand, in the first and second embodiments according to the present invention, the step of forming the transparent metal oxide film 24 as described above is not included. In other words, a transparent parallel film is formed directly on the white metal material.

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 ( Fig. 5 (a)), N (Di-para-xylylene) -type (shown in Fig. 5 (b)), D (Tetra-chloro-para-xylylene) -type (shown in Fig. 5 (c)) , F (Octafluoro- [2,2] para-xylylene) -type (shown in Figure 5 (d)), HT-type (shown in Figure 5 (e)), A-type (shown in Figure 5 (f) ), AM-type (shown in FIG. 5 (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 850 ° C. Thereafter, the monomers are deposited on the surface of the transparent metal oxide film by maintaining a partial pressure of the monomer in a vacuum chamber at 10 to 100 mTorr.

After the transparent paraline film 25 is formed as described above, heat treatment is performed, and the heat treatment is performed in a vacuum chamber within atmospheric pressure or 0.1 mTorr, and is performed at a temperature between 50 ° C. and 250 ° C., for 1 minute to It is preferred to proceed for 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.

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 an exemplary view of masking a post portion of a metal wire according to another embodiment of the present invention.

FIG. 4 is a manufacturing process diagram of an orthodontic wire, in which a paraline film is not coated on a back portion of a metal wire, according to another embodiment of the present invention.

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

6A to 6D are micrographs of surface-treated metal wires according to embodiments of the present invention.

7A and 7B are micrographs of metal wires surface-treated with a white metal material 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

Claims (33)

delete delete In the orthodontic wire manufacturing method, Manufacturing a metal wire from a metal alloy material; Masking the post portion of the metal wire by a mask capable of wrapping the post portion of the metal wire; Performing a heat treatment process after physical or chemical etching the surface of the metal wire; Coating a metal material such that the surface of the metal wire is white in color, and then performing a heat treatment process; And forming a transparent paraline film on the white metal material, and then performing a heat treatment. In the orthodontic wire manufacturing method, Manufacturing a metal wire from a metal alloy material; Masking the post portion of the metal wire by a mask capable of wrapping the post portion of the metal wire; Performing a heat treatment process after physical or chemical etching the surface of the metal wire; Coating a metal material such that the surface of the metal wire is white in color, and then performing a heat treatment process; Coating a transparent metal oxide film on a metal material coated 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. In the orthodontic wire manufacturing method, Manufacturing a metal wire from a metal alloy material; Forming a masking paraline film on the surface of the metal wire, and then removing the masking paraline film formed on the anterior portion of the metal wire; Performing a heat treatment process after physically etching or chemically etching the anterior surface of the metal wire; Performing a heat treatment process after coating the metal material only on the anterior portion of the metal wire or on the surface of the anterior portion and the masking parallel film; Forming a transparent paraline film on the white metal material and then performing heat treatment; Orthodontic wire manufacturing method comprising the step of removing the masking and the transparent paralin film or the masking paraline film, the white metal material and the transparent paraline film sequentially formed on the back portion of the metal wire. . The method according to any one of claims 3 to 5, 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 any one of claims 3 to 5, Before the physical etching or chemical etching of the surface of the metal wire, the metal wire is wet cleaning using an alkali, an organic solvent or ultrapure water. The method according to any one of claims 3 to 5, 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 8, And the metal wire is electrolytically or electrolessly etched in the etching solution to be surface treated. delete The method according to claim 9, 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 any one of claims 3 to 5, Surface etching of the metal wire is a method of manufacturing orthodontic wire, characterized in that performed by sand blasting (sand blasting) using a fine grain of ceramic or metal material. The method according to claim 12, The grain size is orthodontic wire manufacturing method characterized in that the range of 1nm ~ 100㎛. The method according to any one of claims 3 to 5, After physically or chemically etching the surface of the metal wire, the heat treatment process is performed in an atmospheric pressure or vacuum chamber, but the orthodontic wire is manufactured for 1 minute to 48 hours at a temperature of 50 ~ 300 ℃ Way. The method according to any one of claims 3 to 5, The metal material to be coated on the surface of the metal wire is a method for manufacturing orthodontic wire, characterized in that the coating using wet electroplating or dry plating. The method according to claim 15, The metal material coated on the metal wire surface is silver (Ag), zinc (Zn), tin (Sn), indium (In), platinum (Pt), tungsten (W), nickel (Ni), chromium (Cr), Orthodontic wire manufacturing method, characterized in that any one or a mixture of aluminum (Al), palladium (Pd). delete The method according to any one of claims 3 to 5, The metal material coated on the surface of the metal wire may be sputtering using plasma, thermal vacuum evaporation, e-beam evaporation, ion plating, ion plating, vacuum spray spraying, and the like. Orthodontic wire manufacturing method characterized in that formed using any one of the wet electroplating. The method according to any one of claims 3 to 5, And coating the surface of the metal wire with a white metal material, followed by ultrasonic cleaning of the surface of the metal wire using an alkali, an organic solvent, or ultrapure water. The method according to any one of claims 3 to 5, After coating the metal material, the heat treatment process is carried out in an atmospheric pressure or a vacuum chamber, wherein the orthodontic wire manufacturing method, characterized in that for 1 minute to 48 hours at a temperature of 50 ~ 300 ℃. The method according to any one of claims 3 to 5, After the surface of the white metal material is chemically etched, the orthodontic wire manufacturing method characterized in that the heat treatment process is performed. The method according to claim 21, Surface etching of the metal material is orthodontic wire, characterized in that performed using an etching solution prepared by mixing any one or a mixture of HCl, H ₂ SO ₄ , HNO ₃ , H ₂ O ₂ in H ₂ O Manufacturing method. The method according to claim 22, Surface etching of the metal material is a method for producing orthodontic wire, characterized in that for 1 second to 5 minutes at a temperature of 10 ~ 100 ℃. The method according to claim 21, After the chemical etching of the surface of the metal material, the heat treatment process is carried out in an atmospheric pressure or vacuum chamber, it is performed for 1 minute to 48 hours at 50 ~ 300 ℃ temperature, characterized in that the orthodontic wire manufacturing method. The method according to claim 4, 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 nano-particle size using a vacuum spray spraying method. The method according to claim 4, The transparent metal oxide film is orthodontic, characterized in that formed by any one of sputtering, thermal vacuum evaporation, e-beam evaporation, ion plating method (ion plating) Method of manufacturing wire for The method according to claim 4, 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. delete The method of claim 27, The transparent metal oxide film is orthodontic wire manufacturing method characterized in that the coating at a temperature between 15 ℃ to 300 ℃ in a vacuum chamber. The transparent paraline film according to any one of claims 3 to 5, 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. delete The method according to any one of claims 3 to 5, After the transparent paraline film is formed, the heat treatment performed is carried out at a temperature between 50 ℃ to 250 ℃ in an atmospheric pressure or a vacuum chamber, characterized in that proceeding for 1 minute to 48 hours. The method according to claim 3 or 4, The mask is orthodontic wire manufacturing method, characterized in that formed of a polymer or metal material.

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