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WO2008147066A2 - Procédé de fabrication d'un fil métallique utilisé pour corriger un groupe de dents - Google Patents

Procédé de fabrication d'un fil métallique utilisé pour corriger un groupe de dents Download PDF

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Publication number
WO2008147066A2
WO2008147066A2 PCT/KR2008/002787 KR2008002787W WO2008147066A2 WO 2008147066 A2 WO2008147066 A2 WO 2008147066A2 KR 2008002787 W KR2008002787 W KR 2008002787W WO 2008147066 A2 WO2008147066 A2 WO 2008147066A2
Authority
WO
WIPO (PCT)
Prior art keywords
metal
metal wire
wire
transparent
thermal treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2008/002787
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English (en)
Other versions
WO2008147066A9 (fr
WO2008147066A3 (fr
Inventor
In Jae Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2008147066A2 publication Critical patent/WO2008147066A2/fr
Publication of WO2008147066A3 publication Critical patent/WO2008147066A3/fr
Publication of WO2008147066A9 publication Critical patent/WO2008147066A9/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/20—Arch wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery

Definitions

  • the present invention relates to a method for manufacturing a wire for correcting irregularities of teeth, and in particular to a method of manufacturing a wire for correcting irregularities of teeth, which is not harmful to a human body and is capable of continuously maintaining the color of the teeth.
  • a metal wire is typically used. With the elasticity of such a metal wire, the metal wire is wound around the teeth to be fixed in such a manner that load induced when the metal wire is bent or tensioned is applied to and fixes the teeth.
  • a correction member in the form of a shape memory alloy wire undergoes a heat treatment so that its parent phase shape takes a desired shape, i.e. a shape of an anatomically regular tooth row, the correction member is engaged to a patient's tooth row under a low temperature environment, and the correction member is heated to return to its original shape, so that the irreguralities of teeth can be corrected by the elastic force of the correction member.
  • FIG. 1 is a schematic view and a cross-sectional view showing a conventional wire for correcting irregularities of teeth, respectively.
  • the wire 10 for correcting irregularities of teeth is similar to an ordinary wire in its external appearance. However, the internal structure of the wire 10 is different from that of the ordinary wire. The structure of the wire 10 and the method of manufacturing the same will be described with reference to FIG. l(b).
  • FIG. l(b) is a cross-sectional view of the "A" part of the wire shown in FIG. Ia.
  • the conventional wire 10 for correcting irregularities of teeth consists of a metal wire 11, and a Teflon coating 13 formed on the surface of the metal wire 11.
  • the metal wire 11 may be an ordinary metal wire or a metal wire formed from a shape memory alloy.
  • the Teflon coating 13 may be formed by coating Teflon on the surface of the metal wire 11 through various coating methods. The Teflon coating 13 is coated so that the wire 10 for correcting irregularities of teeth has a color similar to a tooth color.
  • the present invention is made to solve the above ⁇ nentioned problems of the prior art, and the present invention is intended to provide a method of manufacturing a wire for correcting irregularities of teeth which is harmless to a human body.
  • a method of manufacturing a wire for correcting irregularities of teeth including the steps of: manufacturing a metal wire from a metal alloy material; chemically etching the surface of the metal wire and then conducting a thermal treatment; coating a metal material on the surface of the metal wire so that the surface of the metal wire exhibits a white color, and then conducting a thermal treatment; coating a transparent metal oxide film on the metal material coated on the metal wire; and forming a transparent parylene film on the transparent metal oxide film, and then conducting a thermal treatment to the metal wire.
  • the inventive method Prior to coating the transparent metal oxide film, the inventive method further includes the step of chemically etching the surface of the metal material, and then conducting a thermal treatment.
  • the metal wire may be formed from a material selected from a stainless steel, NiTi, a nickel (Ni)-based alloy, a copper (Cu)-based alloy, and an aluninun (Al)-based alloy.
  • the surface of the metal wire is supersonically cleaned using an alkali, an organic solvent or super- pure water.
  • the surface-etching of the metal wire is conducted using an etching solution prepared by mixing any of CuCl , FeCl , HCl, H SO , HNO , H PO , HF and H O
  • the metal wire is electrolytically or electrolessly etched in the etching solution. Due to this surface treatment, indentations with a width and a depth in the range of 0.1 ⁇ m to 50 ⁇ m is formed.
  • the surface-treated metal wire is wet- cleaned using any of an alkali, an organic solvent and super-pure water.
  • the metal material on the surface of the metal wire is coated using wet or dry electrolytic plating.
  • the metal material coated on the metal wire surface is any of Ag, Zn, Sn, In, Pt, W,
  • the metal material is coated on the entire surface of the metal wire at a thickness of 0.1 ⁇ m to 20 ⁇ m.
  • the surface-etching of the metal material is conducted using an etching solution prepared by mixing any of HCl, H SO , HNO , H O and a mixture thereof
  • the surface-etching of the metal material is performed for 1 second to 5 minutes at a temperature of 10 0 C to 100 0 C.
  • the thermal treatment conducted after the chemical etching of the surface of the metal material is performed under atmospheric pressure or within a vacuun chamber for 1 minute to 48 hours at a temperature of 50 0 C to 300 0 C.
  • the transparent metal oxid film may be formed by coating a raw material in a sol state formed by nano-size particles through a vaccum spraying process.
  • the transparent metal oxide film is formed from any of ITO, ZnO, TiO ,
  • the transparent metal oxide film may be coated at a thickness in the range of 1 nm to
  • the transparent metal oxide film is coated in a vacuum chamber at a temperature of 15 0 C to 300 0 C.
  • the transparent parylene film is formed by using at least one of C
  • the thickness of the transparent parylene film is in the range of 1 ⁇ m to 50 ⁇ m.
  • the thermal treatment conducted after the formation of the transparent parylene film is conducted under atmosphere or within a vacuum chamber for 1 minute to 48 hours at a temperature of 50 0 C to 250 0 C.
  • the inventive method of manufacturing a wire for correcting irregularities of teeth it is possible to prevent a transparent metal material exhibiting a tooth color from being changed by coating a transparent parylene film after the transparent metal material is coated.
  • the wire manufactured according to the present invention makes a user feel the wire as if the wire is one with the user's teeth, it is possible to reduce discomfort.
  • the wire for correcting irregularities of teeth is harmless to a hunan body, and capable of providing improved comfort when it is put on a set of teeth.
  • FIG. 1 is a schematic view and a cross-sectional view of a conventional wire for correcting irregularities of teeth, respectively;
  • FIG. 2 is a schematic view and a cross-sectional view of a wire for correcting irregularities of teeth manufactured according to an embodiment of the present invention, respectively;
  • FIG. 3 is constitutional formulas of dimers according to embodiments of the present invention.
  • FIGs. 4 to 7 are microscopic photographs of surface-treated metal wires according to embodiments of the present invention.
  • FIGs. 8 and 9 are microscopic photographs of metal wires with a white surface- treated metal material according to embodiments of the present invention. Best Mode for Carrying Out the Invention
  • FIG. 2 is a schematic view and a cross-sectional view of a wire for correcting irregularities of teeth manufactured according to an embodiment of the present invention, respectively.
  • the wire 20 for correcting irregularities of teeth is similar to an ordinary wire in its external appearance. However, the internal structure of the wire 20 is different from that of an ordinary wire. The shape and method of manufacturing the wire 20 will be described with reference to FIG. 2(b).
  • FIG. 2(b) is a cross-sectional view of the "A" part of the wire shown in FIG. 2(a), which is presented so as to describe an embodiment of the present invention.
  • the wire 20 for correcting irregularities of teeth includes an elongated metal wire 21, a white metal material 23 coated on the surface of the metal wire 21, a transparent metal oxide film 24 coated on the surface of the metal material 23, and a parylene film 25 formed on the transparent metal oxide film 24.
  • the metal wire 21 is formed from a metal alloy including an ordinary metal alloy material and a shape memory alloy material.
  • the metal alloy material for forming the metal wire 21 may be any of stainless steel, NiTi, a Ni-based allow, a Ti- based alloy, a Cu-based alloy, and an Al-based alloy
  • shape memory effect This is called as shape memory effect, which is caused because such alloys remember a given shape as an arrangement of atoms. Such an effect appears in an alloy which is transformed without diffusion. A parent phase atom arrangement at a high temperature is also remembered in such an alloy when the alloy is deformed at a low temperature transformation, and atoms are rearranged to their original arrangement when the alloy is heated. [46] Due to this effect, a great amount of force is produced while a shape memory alloy is returning to its original shape. As a result, such a shape memory alloy is used for tightening a mechanical part, beyond being used as a sensing device. Therefore, a metal wire formed from a shape memory alloy material can be employed to correct irregularities of teeth.
  • the metal material 23 coated on the surface of the metal wire formed from a shape memory alloy material and an ordinary metal alloy material allows the surface of the metal wire 21 to exhibit a white color similar to a tooth color.
  • the metal material 23 coated on the surface of the metal wire 21 may be coated through wet or dry electrolytic plating.
  • the metal material 23 coated on the surface of the metal wire 21 is any of
  • the transparent metal oxide 24 coated on the surface of the white metal material 23 may be formed by vacuun-depositing any of ITO, ZnO, TiO , Al O , Ta O , ZrO , SiO
  • the transparent metal oxide 24 has a thickness in the range of 1 nm to 1 ⁇ m, and is formed through plasma sputtering, e-beam evaporation, thermal evaporation, or ion plating.
  • the transparent parylene film 25 is formed at a thickness in the range of 1 ⁇ m to 50 ⁇ m.
  • the parylene is a material verified as being harmless to a himan body.
  • the parylene is capable of being evenly coated on the transparent metal oxide film 24, has fine surface roughness, and feels soft. Consequently, the parylene-coated wire for correcting regularities of teeth provides comfort when it is put on a set of teeth.
  • the inventive method of manufacturing a wire for correcting irregularities of teeth includes the steps of: manufacturing a metal wire from a metal alloy material; chemically etching the surface of the metal wire, and then conducting a thermal treatment; coating a metal material film on the surface of the metal wire so that the surface of the metal wire exhibits a white color, and then conducting a heat treatment; coating a transparent metal oxide film on the metal material coated on the metal wire; and forming a transparent parylene film on the transparent metal oxide film, and then conducting a thermal treatment to the metal wire.
  • the inventive method may further include the step of chemically etching the surface of the metal material, and then conducting a thermal treatment, prior to coating the transparent metal oxide film.
  • a metal wire 21 is prepared from a metal alloy material.
  • the metal wire 21 may be formed from any of a Ni-based alloy, a stainless steel (SUS), NiTi, a Ti-based alloy, a Cu-based alloy, and an Al-based alloy.
  • SUS stainless steel
  • NiTi NiTi
  • Ti-based alloy Ti-based alloy
  • Cu-based alloy Cu-based alloy
  • Al-based alloy Al-based alloy
  • the surface of the metal wire 21 is chemically etched. Then, a thermal treatment is conducted. Prior to chemically etching the surface of the metal wire 21, the surface of the metal wire is preferably supersonically cleaned using an alkali, an organic solvent, or super-pure water. That is, the surface of the metal wire 21 is preferably cleaned prior to conducting chemical etching.
  • any etching solution capable of forming indentations on the surface of the metal wire 21 can be employed for etching the surface of the metal wire 21.
  • HNO , H PO , HF and H O or a mixture thereof with H O or an organic solvent
  • the metal wire 21 is surface-treated by being electrolytically or electrolessly etched in a state it is submerged in the etching solution. With this heat treatment, the surface of the metal wire 21 is formed with indentations.
  • the indentations have a width and a depth in the range of 0.1 ⁇ m to 20 ⁇ m.
  • the surface-treated metal wire is wet-cleaned by using any of an alkali, an organic solvent, and water.
  • FIGs. 4 to FIG. 7 show microscopic photographs of the surfaces of metal wires 21 treated through chemical etching, respectively.
  • FIG. 4 shows a microscopic photograph taken after a metal wire 21 of SUS was etched for 20 minutes with HCl (at 45 0 C)
  • FIG. 5 shows a microscopic photograph taken after an metal wire 21 of SUS was etched for 5 minutes by a solution formed by mixing sulfuric acid and water in the ratio of 1 to 2 (at 75 0 C).
  • FIG. 6 shows a microscopic photograph taken after a metal wire 21 of NiTi was etched for 1 minute by aqueous solution of FeCl (at 40 0 C)
  • FIG. 7 shows a microscopic photograph after a metal wire 21 of NiTi was etched for 1 minute by aqueous solution of FeCl (at 50 0 C).
  • Such a chemically etched metal wire 21 is thermally treated under a predetermined condition.
  • the heat treatment conducted after chemical etching is performed under atmospheric pressure or in a vacuun chamber with a pressure of not more than 0.1 ⁇ Torr at a temperature in the range of 50 0 C to 300 0 C for 1 minute to 48 hours.
  • the transparent metal oxide film 24 may be coated on the surface of the metal material 23 directly, or after the surface of the metal material 23 is chemically etched.
  • a predetermined etching solution is used. That is, the surface-etching of the metal material 23 is conducted using an etching solution prepared by mixing any of HCl, H SO4, HNO , and H O or a mixture thereof with H O.
  • FIG. 8 shows a microscopic photograph (enlarged 500 X) of a metal wire of NiTi after the white metal material 23 was coated, and then the surface of the metal material 23 was etched for 18 sec using a solution formed by mixing HNO and H O, and FIG.
  • FIG. 9 shows a microscopic photograph (enlarged 500 X) of an SUS metal wire after the white metal material 23 was coated and then the surface of the metal material 23 was etched for 50 sec using a solution formed by mixing HNO and H O.
  • the surface-etching of the metal material 23 using an etching solution is performed for 1 second to 5 minutes at a temperature of 10 0 C to 100 0 C.
  • a thermal treatment is conducted. The thermal treatment is performed in a vacuun chamber with a pressure of not more than 0.1 ⁇ Torr for 1 minute to 48 hours at a temperature of 50 0 C to 300 0C.
  • the transparent metal oxide film 24 is formed on the surface of the metal material 23 through sputtering, thermal vacuum evaporation, e-beam evaporation, or ion plating.
  • the transparent metal oxide film 24 may be formed on the surface of the metal material 23 by coating a row material in a sol state formed by nano-size particles through a vacuum spraying process.
  • the transparent metal oxide film 24 may be formed from various metal oxides if they can be transparently colored. Any of ITO, ZnO, TiO , Al O , Ta O , ZrO , SiO , GeO ,
  • the transparent metal oxide film 24 formed as described above should be formed in a thickness which allows the wire for correcting irregularities of teeth to provide comfort when the wire is put on a set of teeth.
  • the transparent metal oxide film 24 is preferably coated at a thickness of about 1 nm to 1 ⁇ m.
  • the deposition is conducted preferably at a temperature of 15 0 C to 300 0 C.
  • the transparent metal oxide 24 is formed by introducing oxygen gas into the vacuun chamber at a flow rate of 1 to 200 seem.
  • the transparent metal oxide 24 is plasma-treated, wherein it is desirable to introduce argon gas into the vacuun chamber at a flow rate of 50 seem to 500 seem, and to maintain the pressure of the chamber at 1 mTorr to 20 mTorr while the transparent metal oxide film is being plasma-treated.
  • the transparent parylene film 25 is formed on the metal oxide film 24, and a thermal treatment is conducted.
  • the coated parylene film 24 prevents the color of the white metal material 23 from being changed, and makes it possible to manufacture a wire for correcting irregularities of teeth, which is harmless to a human body.
  • the thickness of the transparent parylene film is in the range of 1 ⁇ m to 50 ⁇ m.
  • the transparent parylene film is formed on the transparent metal oxide film using a dimer material, preferably using at least one of C (di-chloro-para-xylylene)-type (FIG. 3(a)), N (di-para-sylylene)-type (FIG. 3(b)), D (tetra-chloro-para-xylylene)-type (FIG. 3(c)), F(Octafluoro-[2,2]para-xylylene)-type (FIG. 3(d)), HT-type (FIG. 3(e)), A-type (FIG. 3(f)), and AM-type (FIG. 3(g)) dimers.
  • the transparent parylene film 25 is formed by vaporizing a dimer at a temperature of
  • a vaporizer decomposing the dimer into monomers by making the dimer pass through a pyrolysis at a temperature of 550 0 C to 850 0 C, and then maintaining the partial pressures of the monomers within a vacuun chamber at 10 mTorr to 100 mTorr, so that the monomers are deposited on the surface of the transparent metal oxide film.
  • a wire manufactured according to the present invention is characterized by the fact that it is harmless to a himan body, and is capable of maintaining a tooth color.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Wire Processing (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un fil métallique utilisé pour corriger des déviations dentaires. Cette invention concerne notamment un procédé de fabrication d'un fil métallique utilisé pour corriger des déviations dentaires, qui est sans danger pour le corps humain et peut conserver la couleur des dents. Le procédé selon l'invention comprend les étapes suivantes: fabrication d'un fil métallique à partir d'un alliage métallique; gravure chimique de la surface du fil métallique et exécution d'un traitement thermique; dépôt d'un film de matériau métallique sur la surface du fil métallique de sorte que la surface du fil métallique présente une couleur blanche; et exécution d'un traitement thermique; dépôt d'un film d'oxyde métallique transparent sur le matériau métallique déposé sur le film métallique; et formation d'un film de parylène transparent sur le film d'oxyde métallique transparent; enfin exécution d'un traitement thermique.
PCT/KR2008/002787 2007-05-28 2008-05-19 Procédé de fabrication d'un fil métallique utilisé pour corriger un groupe de dents Ceased WO2008147066A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0051240 2007-05-28
KR20070051240 2007-05-28

Publications (3)

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WO2008147066A2 true WO2008147066A2 (fr) 2008-12-04
WO2008147066A3 WO2008147066A3 (fr) 2009-01-22
WO2008147066A9 WO2008147066A9 (fr) 2009-03-19

Family

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PCT/KR2008/002787 Ceased WO2008147066A2 (fr) 2007-05-28 2008-05-19 Procédé de fabrication d'un fil métallique utilisé pour corriger un groupe de dents

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Country Link
KR (1) KR100919900B1 (fr)
WO (1) WO2008147066A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110220612A1 (en) * 2008-11-21 2011-09-15 Seongsuk Choe Method for Manufacturing Wire for Dental Correction

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100956581B1 (ko) * 2008-03-26 2010-05-07 방문주 치열교정용 와이어 제조방법 및 와이어
KR101136551B1 (ko) * 2010-04-30 2012-04-17 주식회사 에이엠 테크 분산 도금을 이용한 치열 교정용 와이어 제조방법
KR101297644B1 (ko) * 2013-04-27 2013-08-19 대니비엠티 주식회사 치열교정용 코팅와이어 제조방법
KR101600688B1 (ko) * 2014-06-23 2016-03-08 (주)에스엔에이치 Ｎｉ-Ｔｉ 합금의 표면 처리 방법, 이로부터 제조된 의료용 디바이스 및 Ｎｉ-Ｔｉ 합금의 표면 처리용 물질
KR102765783B1 (ko) * 2022-05-20 2025-02-13 대니비엠티 주식회사 치아 교정용 코팅 와이어 및 그의 제조방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063082A (en) * 1988-06-03 1991-11-05 Loren Adell Method of making coated metallic orthodontic arch wire
JPH0771562B2 (ja) * 1992-10-14 1995-08-02 鈴木金属工業株式会社 歯科用材料
JP2004236772A (ja) 2003-02-04 2004-08-26 Tomii Kk 歯列矯正器具およびその製造方法
JP4475458B2 (ja) * 2004-05-12 2010-06-09 国立大学法人広島大学 歯科用品およびその製造方法
KR100795106B1 (ko) * 2005-12-27 2008-01-17 우원전자 주식회사 치열 교정용 와이어 및 그 제조 방법
KR100853873B1 (ko) * 2007-01-16 2008-08-26 김인재 치열 교정용 와이어 제조 방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110220612A1 (en) * 2008-11-21 2011-09-15 Seongsuk Choe Method for Manufacturing Wire for Dental Correction
US8778444B2 (en) * 2008-11-21 2014-07-15 Seongsuk Choe Method for manufacturing wire for dental correction

Also Published As

Publication number Publication date
WO2008147066A9 (fr) 2009-03-19
KR20070107633A (ko) 2007-11-07
WO2008147066A3 (fr) 2009-01-22
KR100919900B1 (ko) 2009-10-06

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