TW200520733A - Metallic archwires of various colors and their preparation methods - Google Patents

Abstract

This invention provides develops metallic archwires with a single color or multiple colors, which can be prepared by subjecting the orthodontic archwires to an anodizing treatment.

Description

200520733 IX. Description of the invention: The technical field to which the invention belongs The present invention relates to a metal tooth orthodontic wire with a single color or a multi-color, different from the original silver-white gloss of metal, and a method for preparing the same. The preparation method involves anodizing existing metal orthodontic wires. Prior art Orthodontics is currently a very common medical practice, and archwire is the most important material in orthodontics. Currently common stainless steel wire or β-Ti, NiTi § memory alloy wire. Andreasen first used NiTi alloy for the front wall [G · F. Andreasen, US patent 4037324 (1977)], and Burstone et al. Were pioneers of using β_titanium materials [c factory

Burstone and A. J. Goldberg, US patent 4197643, (1980)] 〇 There are also additions of different ingredients, which introduces various types of teeth around

Main line [R · C · L · Sachdeva Wang nd F · Farzin, US paten 5683245 (1997); K. Mitose and T. Ueki, US patent 595 1793, (1999); LC Schetky, M. H. Wu, C .-Y. Loi, and C. J. Burstone, US patent 6258182, (2001); JA Davidson, AK Mishra, KP Daigle, and P. Kovacs, US patent 5573401, (1996)]. All the above-mentioned correction lines are metal with dazzling silvery white. For aesthetics, there are currently transparent correction wires, even transparent correction wires with nano-structures. For example, Lemchen recently proposed a very different mesoporous alloy correction wire [M.S. Lemchen, US patent 6056545 , (2000)]. The mesoporous alloy correction wire invented by Lemchen has a transparent property of 200520733 because it is porous. It can be expected that its mechanical properties will not be as strong as the original dense wires. This is a significant limitation on the use of orthodontic lines. In the prior art, there are no orthodontic lines of different colors, no anodized orthodontic lines, and no anodized method of orthodontic lines. SUMMARY OF THE INVENTION In the present invention, an anodic treatment method is used to treat an orthodontic line. In addition to improving the corrosion resistance property, the present invention can also produce a tooth wall line with various single colors or appearances. The material used in the method of the present invention has the great flexibility of Aida, and it is possible to use the stainless steel wire and the shape memory alloy with the best current performance f. Compared with the existing straightening wires, the obtained products will not have any significant differences in mechanical properties, and the appearance of various single colors or multicolored colors can better meet the needs of modern people who like to show their personality. Embodiments The present invention discloses a metal orthodontic wire having a color other than the original silver-white luster of the metal. Preferably, the color is formed by anodizing. Preferably, the front line of the metal tooth wall has a single color. Preferably, 'better' is made. The metal orthodontic wire has a variety of colors. The orthodontic thread of the present invention is preferably made of β-titanium-based alloy 200520733. The orthodontic thread of the present invention is made of titanium-nickel-based alloy. σ. Preferably, the orthodontic wire of the present invention is made of stainless gold. Mouth. Preferably, the orthodontic line of the present invention has a color selected from the group consisting of blue, yellow, purple 'green, golden or brown in appearance. The present invention also discloses a method for preparing the orthodontic wire of the present invention, comprising the following steps: a) cleaning a metal orthodontic wire; and b) anodizing the cleaned metal orthodontic wire obtained from the step ... The surface of the orthodontic wire has a color different from the original silvery white gloss of the metal, wherein the anodized electrolyte is an acidic aqueous solution. Preferably, an operating voltage of the anode treatment is 10V to 60V. Preferably, the cleaning comprises immersing the metal orthodontic wire in an acidic X > grain solution, more preferably in an aqueous hydrochloric acid solution. Orthodontic lines are placed in the oral cavity of the human body. The biocompatibility is important. Therefore, general coloring or pigment coating techniques cannot be applied to the orthodontic lines. The anodizing coloring method uses the optical interference effect of the oxide film on the surface of the material instead of the pigment. The product after the anode treatment is the oxide of the orthodontic line, so the product after the anode treatment will not introduce additional biocompatibility issues. The anodizing process is to thicken the oxide on the metal surface. According to general metal materials, its oxide tonway white is more stable than metal, that is, its biocompatibility may be better because of 200520733. However, the anode treatment mentioned in the present invention is only oxidized on the surface, so it does not significantly affect the mechanical strength of the wire. That is to say, the technology of anodization can change the color of the appearance, but its biological phase and mechanical strength will not change greatly (the former may be slightly increased, and the latter may be slightly decreased or slightly improved). There are many previous techniques for anodizing titanium (G. G. Turner, GB1100913, 1968; Shreir, GB962904, 1964; KenduU, US3663379, 1972; Kaminski, US6029390, 2000), but mainly on Ti structural materials. Among the existing known techniques, there is no anodic treatment technique for the tooth correction line, and there is no known and disclosed method for the anodic treatment of the TiNi phase. Example 1 Anodization was performed on a tooth bridge line of Nom Ti alloy (No. n-003, Ni-Ti correction line of DC, USA). The electrolyte used was 5 g of Na2SO added to 400 ml of water. The aqueous solution prepared by 〇H2〇, the anode is the NiTi alloy orthodontic wire, the cathode is platinum, and the power supply is MOPS Company's LPS 305. The NiTi alloy orthodontic wire is immersed in 0.5M NaOH to Ultrasonic vibration for 5 minutes. This alkaline washing step can remove the esters on the surface and activate the metal surface to make the surface properties consistent. Then, use hydrochloric acid (30g HCl / 100mlE ^ O) for 10 minutes. The purpose is to remove the oxide on the metal surface. Finally, it is washed with a large amount of distilled water and blown dry. Anodizing is performed at room temperature using a constant voltage. The operating voltage is 10V and the time for anodizing is 120 minutes. Then remove the Combined 200520733 Golden Orthodontic Line 'washed with distilled water and then blow dried to obtain a blue orthodontic line. The NiTi alloy dental orthodontic line has a bright white NiTi bond before treatment. Gold. Example 2 uses the NiTi alloy orthodontics line. (Serial number is N_003, NDCA of the United States dca) as the test piece, and the electrolyte is an aqueous solution called NkSOwoHw in 400mi water The experimental device system and test strip pretreatment = formula as in Example-. The temperature of the anodization process is room temperature, and the anode is treated with a constant voltage. Its operation is iqv, and the anode gate is 120 knives, and then The test piece was taken out, washed with steamed water, and then dried to obtain an orthodontic line with a yellow appearance. Example 3 An orthodontic line of NiTi alloy (the serial number is n_〇03, the NUi orthodontic line of the United States a) was used as the test piece. The electrolyte is an aqueous solution of Na2S04.10H2O added to 400μ water. The experimental system, system, and test strip are prepared as shown in Example-. The temperature of the anodizing process is room temperature, The anode treatment is carried out using the method of fixed β. The operating voltage is referred to as the anode treatment ^: J is 120 knives', then the test piece is taken out, washed with distilled water, and then the human is dried to obtain a purple orthodontic line. Example of Orthodontics with NiTi Alloy

The positive line (No. N-003, Ni_Ti correction line of DCA 200520733 in the United States) is a test piece, and the electrolyte is an aqueous solution of 5 g of Na2SO "10H2〇 added to 400ml of water. Rationale + test device system, and The test piece is pre-treated with φ ^ ^ __ The temperature at which the rank is crossed is room temperature, and anodizing is performed by a constant voltage. Multiple selections, ^, and the operating voltage are 20V, and the anodizing time is 120 minutes, and then taken out-h ^ "W tablets" Washed with distilled water, and then oral transmission of blue orthodontic lines. Example 5 NiTi alloy teeth replacement order

Straightening line (No. N_003, Nom-Tm correction line of DCA in the United States) is a test piece, and electric ^ χτ is the electrolyte solution is an aqueous solution of 10 g of Na2SO "10H2O added to 400 ml of water. Caution _ experimental device Preparing the system and the test piece = The formula is as in Example-. The temperature of the anodizing process is room temperature, and the fixed == type is used for anodizing. The operating voltage is that the anodizing is blown to dry the teeth with a green appearance. In the sixth embodiment, β-Ti orthodontic line (No. 10 " 42, P_Tl bridge positive line of American INC) was used as the test piece. The electrolyte solution was added with 10% Na2S in 400ml water. 4.10H2O aqueous solution. The experimental device system and test strip pretreatment method are as in Example 1. The temperature of the anodizing process is room temperature =: anodizing. Its operating voltage ... anodizing = 5 minutes, and then take out the test Tablets, washed with distilled German water, and then dried the orthodontic lines with purple appearance. 200520733 Example 7 The p-Ti orthodontic line (No. 100_942, β-Tι orthodontic line of American MC) was used as the test piece, and the electrolyte Add Na in σ to 400 ml of water dOolOf ^ O aqueous solution. The experimental device system and test strip pretreatment method are as in Example 1. The temperature of the anodization process is room temperature, and the anode is treated with a constant voltage. The operating voltage is 40v. The time is 5 minutes, and then the test piece is taken out, washed with distilled water, and then blow dried to obtain a golden-colored orthodontic line. Example 8 A β-Ti orthodontic line (No. 100-942) , American β-Tι correction line) is a test piece, and the electrolyte is an aqueous solution of 10 kNkSOplO ^ O added to 400mi water. The experimental device system and the test piece pretreatment method are as in Example- The temperature of the anodizing process is room s, and the anodizing is performed by means of voltage. Its operating voltage is 20v, and the anodizing time is 5 minutes. Then the test piece is taken out, washed with distilled water, and then dried to obtain the appearance. It is the blue tooth bridge line. Example 9: 10 g of water was added to the water, and the test piece was pre-conditioned at room temperature, and a dental correction line (sequence number 100-942, US M) was used. Β-Ti correction line) is the test piece, and the electrolyte is The aqueous solution of Na2SO4 * 10H2O was treated in the same way as in Example 1. The experimental treatment system was set up. The temperature of the anodizing process was the voltage of the chamber 200520733 voltage. The rest time was 5 minutes, and then 1GV 'anodized to dry brown bridge teeth: tablets, washed with distilled water, and then blow Example 10

Ni Ti composite > gi rK-correction line (No. 1 ^ Μ Ma into tablets, the electrolyte is

Na ςπ 1Λΐτ liver from horse

Na2S04OOH2O in water. s as a sinus you as a f test device system, and test strip pretreatment method embodiment one. Anodizing process Anodizing. The choice is 5C, using a constant voltage of 120 ', a voltage of 20v, and an anodizing time of 120 minutes. Then take out the yellow I # n human stems, which have a pale purple gradient and a light steam bar. The evening is like an orthodontic line. Example 11

The orthodontic line of Ni II IA alloy (the serial number is N-03, the positive line of DCA of the United States) is the test piece, and the electrolyte is added in 15_ water such as i // sister 20 aqueous solution. The experimental device system and test strip pretreatment method The temperature of the square anodization process is 25 ° C, and the process voltage and anode treatment of a fixed voltage are performed. Its operating voltage is 4 3GV, anodizing time: 12: minutes, and then the test piece is taken out and blow-dried to obtain an orthodontic line with an appearance of lilac, gradual change to light color, and then gradual change to light blue. Example 12 Orthodontic line with NiTi alloy (Serial number Ν_⑼3, United States ο. '12 200520733

Ni-Ti wall positive line) is the test piece, and the electrolyte is

Na2SO4.10H2O aqueous solution. The experimental device system and test strip pretreatment method are as in the first embodiment. The temperature of the anodizing process is pit, and the anodizing is performed with a constant voltage. Its operating voltage is 4 surgeries, and the time for anodizing is 2 120 * minutes, then the test piece is taken out and blow dried to obtain an orthodontic line with an appearance of lilac, gradual change to light color, and then gradual change to light blue. Embodiment 13 The tooth bridge front line of Nm alloy

Nl_Tl correction line) is a test piece, and the electrolyte is a 2 5 aqueous solution added to 200 ml of water. The experimental device system and test strip pretreatment are as in Example-. The temperature of the anodizing process is hungry, and the anodizing method is used for the anodizing. The operating voltage of 1 pole / 20 volts, 120 minutes for anodizing treatment, and then remove the film and blow dry to the appearance of a light blue division of the orthodontic correction line. In the fourteenth embodiment, NiTi alloy tooth χτ. Orthodontic line (No. N_003, N ^ i orthodontic line of DCA in the United States) was used as a test piece, and € solution was added to 200ml water 2 νμ > 〇4 · 10Η2 (^ χ 2 * 5g ancient test equipment system and test strip pretreatment method as in Example 1. Yang;) ¾ test; c field, a 戌 identify the temperature of the depolarization process is 25 ° C, using fixed electricity Fort way is anodized. The beans are known as a voltage of 30V, and the anodizing time is 120 minutes. After the absence, the test piece is taken out and blow dried to give a lilac-colored orthodontic line with light yellow spots. Color knife 13

Claims (1)

200520733 X. Patent Application Fanyuan: 1.- A metal orthodontic line with a color other than color in appearance. Beyond the original silvery white luster 2. If the scope of patent application is 帛 μ, it is formed by intestinal pole treatment. The color of the line of the tooth's wall. The tooth's line of tooth structure, wherein the metal tooth orthodontic line according to the first or second patent application scope has a single color. 4. If the scope of the patent application is No. 1 or the metal orthodontic wire has multiple colors. 5. If the scope of the patent application is Ti-based alloys. 6. It is made of nickel-based alloy, such as the scope of patent application. Orthodontic line The orthodontic wall line of item 1 is an orthodontic line with item β-1, which is made of titanium · 7 · such as the scope of patent application J $ & orthodontic correction line, which is mainly made of stainless steel Made of alloy. 8. If the tooth #correction line in item 3 of the patent application scope, the color is blue, yellow, purple, green, golden or brown. 9. · A method for preparing an orthodontic wire as described in item 丨 of the patent application, comprising the following steps: Μ cleaning a metal orthodontic wire; and b)% treatment of the cleaned metal orthodontic wire obtained from step a) ' A color other than the original silvery white gloss of the metal is obtained on the surface of the metal orthodontic wire, wherein the anodized electrolyte is an acidic aqueous solution. 14 200520733 10. The method according to item 9 of the patent application, wherein an operating voltage of the anodizing is 10V ~ 60V. 11. The method according to item 9 of the scope of patent application, wherein the metal teeth bridge line is made of β · titanium-based alloy, and the electrolyte is a sulfate aqueous solution. Among them, the metal tooth and the electrolyte are sulfuric acid. 12. The method according to item 9 of the scope of the patent application. The correction wire is made of a titanium-nickel-based alloy and a saline solution. Wherein the pole treatment Wherein the anode treatment Where the color is where the cleaner contains where the acidic water soluble I3. According to the method of claim 9 in the scope of patent application, the metal orthodontic wire has a single color. 14. According to the method of claim 9 of the scope of patent application, the metal orthodontic wire has multiple colors. 15. The method according to item 13 of the scope of patent application: blue, yellow, purple, green, golden or brown. I6. The method of item 9 in the scope of patent application, immersing the metal orthodontic wire in an acidic aqueous solution. 17. The method according to item 16 of the patent application, wherein the solution is an aqueous hydrochloric acid solution. 15 200520733 VII. Designated Representative Map: (1) The designated representative map in this case is: (). (2) Brief description of the component symbols in this representative picture: 8. If there is a chemical formula in this case, please disclose the chemical formula that can best show the characteristics of the invention: