CN104546162A - Orthodontic tooth arch wire with gradually changed orthodontic force value, and forming technology and device of orthodontic tooth arch wire - Google Patents
Orthodontic tooth arch wire with gradually changed orthodontic force value, and forming technology and device of orthodontic tooth arch wire Download PDFInfo
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- CN104546162A CN104546162A CN201410821176.3A CN201410821176A CN104546162A CN 104546162 A CN104546162 A CN 104546162A CN 201410821176 A CN201410821176 A CN 201410821176A CN 104546162 A CN104546162 A CN 104546162A
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- dental arch
- force value
- arch filament
- orthodontic
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Abstract
The invention relates to an orthodontic arch wire with gradually changed orthodontic force value, and a forming technology and device of the orthodontic tooth arch wire. The orthodontic force value and the elastic modulus of the orthodontic arch wire gradually change from a front tooth position to a rear tooth position, so that the orthodontic arch wire can provide a more reasonable orthodontic force value for different teeth of different patients, and the damages of orthodontic force to periodontal membrane tissues are reduced. For the orthodontic tooth arch wire disclosed by the invention, the orthodontic force value is regulated through the change of the cross-sectional shapes of different positions of the orthodontic tooth arch wire and through an aging heat treatment manner, so that the gradual change of the orthodontic force value at different positions of a single orthodontic tooth arch wire is realized.
Description
Technical field
The present invention relates to a kind of mouth cavity orthodontic dental arch filament and moulding process thereof and device.
Background technology
Correction dental arch filament is self-evident in the effect in orthodontic therapy field, correction dental arch filament coordinates bracket (comprising metal bracket, ceramic bracket etc.), buccal tube, the product such as band can complete most orthodontic treatment, and the effect of correction dental arch filament is supplied to force value that tooth continues to complete the movement to tooth rescuing in process.Correction dental arch filament can be divided into NiTi correction dental arch filament, stainless steel correction dental arch filament, β titanium correction dental arch filament by performance, but along with rescuing going deep into and arrival that is ripe and the personalized epoch of theoretical investigation, conventional orthodontic dental arch filament can not meet the requirement in market completely, so a lot of epoch product arises at the historic moment, as concealed tooth arch string, colored dental arch filament etc. occur one after another.
Meanwhile, dental arch filament rescues the size of force value and the attention also more and more receiving expert and doctor that distributes.A general routine orthodontic treatment case needs the time of 1 ~ 2 year, some patient or doctor rescue force value in order to Shorten the Treatment Process increasing blindly, finally not only do not shorten the time of rescuing, on the contrary injury is produced to periodontium tissue and make odontoseisis, and increase the possibility rescuing rear recurrence.The force value tooth that kicks the beam cannot produce movement, and the excessive tooth of force value also cannot move on the contrary, only has gentle lasting force value to be only optimal selection, and current low force is rescued and theoretically obtained general accreditation.
In addition, teeth different as everyone knows has different shapes, different sizes and has different the number of root canals, and length and the thickness of the tooth root pipe of different sites are also distinguished to some extent, and the force value needed for moving teeth must be caused also different.Central incisor form is less and be single pipe, grinding one's teeth in sleep, some is then three root pipes and looks comparatively sturdy, so the force value of rescuing being applicable to central incisor just seems lighter for grinding one's teeth in sleep, possibly cannot move and grind one's teeth in sleep, on the contrary, the force value being applicable to grinding one's teeth in sleep because of the excessive damage causing central incisor tissue, may prove according to the study, and tooth comparatively reasonably translational speed is 1 ~ 1.5mm every month.
Current correction production industry is just making great efforts to have to this kind the research and development that force value correction dental arch filament product is rescued in gradual change, but all progress of achieving no breakthrough property, an external enterprise is now only had to research and develop successfully, but because cost is higher, do not obtain popularization energetically and use always, and domesticly have no any related products and report.The present invention proposes production and processing technology and the device of the correction dental arch filament of this kind of gradual change force value, achieve the mass production of product, correction yarn quality is stable, mechanical property is controlled.
Summary of the invention
For solving above-described problem, the present invention proposes a kind of gradual change and rescue force value correction dental arch filament and moulding process thereof and device, utilize this technique and device prepare correction dental arch filament simple, convenient, can mass production, the advantage that force value correction dental arch filament is rescued in this gradual change is as follows:
1, suitable force value can be provided to the tooth of different tooth position simultaneously;
2, alleviate the pain of patient, avoid the damage of periodontal tissue;
3, minimizing is changed a frequency raising and is rescued efficiency, and the sidesway effectively controlling dental arch filament adds rescues success ratio.
A kind of gradual change of the present invention is rescued force value correction dental arch filament and moulding process and device thereof and is undertaken by following two kinds of general plannings:
Scheme one: interrupted aging thermal treatment, its technique according to the following steps:
The preparation of step one, mould and silk material, wherein mould is the homemade mould of the present invention integral part as shown in Figure 2, die bottom plate (1), two pieces, left and right body die (2), thermal baffle (3), briquetting (4), fastening screw (5).With welding or mechanical connection manner, two pieces, left and right body die (2) and die bottom plate are linked together, middle insertion thermal baffle (3), be fixed with briquetting, be wound on mould by the silk material of regulation string diameter, winding displacement distance is 0.3mm ~ 0.5mm.
Step 2, ageing treatment, salt bath furnace temperature is set to 500 DEG C ~ 580 DEG C, after temperature-stable, mould is immersed down in salt bath furnace by mode labial teeth as described in Figure 3 together with silk material, immersion mode has three kinds: a kind of is overall uniform descent, and lowering speed is 3 ~ 8mm/min, in time being immersed into mould center line position, proposes fast after static insulation 10 ~ 30min, undertaken by above immersion mode after mould being rotated 180 °, after completing, entirety is come out of the stove water-cooled; One is overall immersion fast, and at the uniform velocity promote after static held for some time, static soaking time is 10 ~ 30min, and pulling speed is 3 ~ 8mm/min; Another kind of for immerse fast in three stages, according to different requirements, dental arch filament is divided into three parts, as shown in Figure 1, per stage be immersed in specified location after static insulation 5 ~ 10min until the phase III immerse static insulation 10 ~ 30min completely.
Step 3, surface acid-washing polished finish.
Scheme two: pickling reducing process, concrete steps are as follows: one, ageing treatment, are put in chamber type electric resistance furnace by silk material and mould, aging temp 500 DEG C ~ 580 DEG C, soaking time 20 ~ 40min, water-cooled after coming out of the stove; Two, surface finish process; Three, dental arch filament reducing process, dental arch filament labial teeth part is immersed downwards after in acid solution and at the uniform velocity upwards mentions, adopt the mode repeatedly immersed until silk material reaches dimensional requirement, the time of each immersion acid solution can not more than 7s, overlong time easily causes overpickling silk material to become fragile, and each pickling needs after proposing to rinse and measurement size with clear water.Acid liquor temperature is greater than 80 DEG C, and acid solution proportioning is H
2o: HF: HNO
3=30 ~ 60: 60 ~ 90: 100 ~ 120.
In scheme one, gradual change rescues the shaped device of force value correction dental arch filament as shown in Figure 2, die bottom plate (1), body die (2), briquetting (4) are heat-resistance stainless steel material, and thermal baffle (3) is high temperature resistant heat insulation material.Base plate and body die welding or the mode that is threaded link together, and can not have gap between the two, thermal baffle inserts after between about two pieces body dies and locks briquetting, guarantees that heat insulation does not loosen.Scheme one mainly by controlling the Af point adjusting correction dental arch filament heat-up time of different sites silk material, under uniform temp, time longer Ti
3ni
4separate out more at crystal boundary, matrix nickel content reduces transformation temperature and raises, and correction dental arch filament becomes soft.Scheme two mainly controls the force value of correction silk by changing silk material string diameter.
Accompanying drawing explanation
Force value correction dental arch filament different tooth position zoning plan is rescued in Fig. 1 gradual change of the present invention.
Force value correction dental arch filament shaped device structural representation is rescued in Fig. 2 gradual change of the present invention.
Force value correction dental arch filament salt bath thermal treatment figure is rescued in Fig. 3 gradual change.
Force value correction dental arch filament is rescued in the gradual change of Fig. 4 varying cross-section string diameter.
Embodiment
Random combine and the change of the above shaping scheme and any each processing parameter all belong to scope; equally; shaped device any can think of structural changes all belong to scope, following embodiment also should include scope in.
Embodiment one
Gradual change of the present invention is rescued the heat-treating profiled technique of force value correction dental arch filament interrupted aging and is carried out according to the following steps:
1, patrix, by the NiTi of Φ 0.41 circle silk close-packed arrays on device of the present invention, winding displacement distance is 0.3;
2, interrupted aging thermal treatment, salt bath furnace temperature is set to 540 DEG C, by mould together with silk material as shown in Figure 11 region labial teeth part first immerse salt bath furnace down, overall uniform descent, lowering speed is 5mm/min, and stop declining when mould half immerses in salt bath, static insulation proposes salt bath after 15 minutes fast, mould is rotated 180 ° after air cooling 5min other half is carried out as stated above, overall taking-up water-cooled after completing;
3, surface treatment, cuts off dental arch filament along mould center line, and dispersion is put in rough polishing 20min in helical polishing machine, to be put in vibratory finishing machine polishing again 1 hour, to take out cleaning, drying after pickling peeling.
Embodiment two
The difference of present embodiment and embodiment one is, the thermal treatment of interrupted aging described in step 2 is by correction dental arch filament 1 region down, to mould center line in quick immersion salt bath furnace, at the uniform velocity mould is promoted with the speed of 5mm/min after static insulation 20min, come out of the stove and rotate 180 ° after air cooling 5min and undertaken by above-mentioned steps, all the other steps are identical with embodiment one.
Embodiment three
The difference of present embodiment and embodiment one is, in step 2, interrupted aging thermal treatment is segmentation descent method, three phases is divided to immerse fast as shown in Figure 1,1 region is incubated 7min after immersing fast, 2 regions are incubated 7min after immersing, rear integral heat insulation 10min is immersed in 3 regions, and air cooling after coming out of the stove, all the other steps are identical with embodiment one.
Embodiment four
The difference of present embodiment and embodiment one is, selected titanium-nickel wire material is the square silk of 0.41 × 0.635, and winding displacement distance is 0.4, and all the other steps are identical with embodiment one.
Embodiment five
The string diameter adopting reducing process to change dental arch filament different sites reaches the gradual change rescuing force value, with box-type furnace 550 DEG C insulation 34min, premolding process is carried out to Φ 0.40mm dental arch filament, dental arch filament 1 region good for premolding is immersed downwards in acid solution fast, promote with the speed of 10mm/min, divide and immerse acid solution for several times until labial teeth middle portion dental arch filament string diameter is 0.31, acid solution proportioning is H
2o: HF: HNO
3=50: 60: 120.
Claims (10)
1. force value correction dental arch filament is rescued in a gradual change; it is characterized in that correction dental arch filament is supplied to tooth force value of rescuing from labial teeth position to backteeth position is gradual change state, any can thinks of the gradual change of single correction dental arch filament generation force value that makes all should include scope in.
2. force value correction dental arch filament is rescued in gradual change according to claim 1, it is characterized in that described correction dental arch filament is NiTi dental arch filament, comprises round silk and square silk.
3. force value correction dental arch filament is rescued in gradual change according to claim 2, and it is characterized in that described correction dental arch filament cross section is for circular, its labial teeth position dental arch filament string diameter is less than backteeth position dental arch filament string diameter.
4. a force value correction dental arch filament moulding process is rescued in gradual change, it is characterized in that described moulding process is interrupted aging thermal treatment.
5. force value correction dental arch filament moulding process is rescued in gradual change according to claim 4, it is characterized in that described graded heat treatment technique is for be wound on mould by titanium-nickel wire material, it immerses in heating medium in mode at the uniform velocity down by labial teeth position, stop declining when backteeth part immerses completely, static insulation for some time.Wherein aging temp is 500 DEG C ~ 580 DEG C, lowering speed is 3 ~ 8mm/min, static soaking time is 10 ~ 30min, water-cooled after coming out of the stove.
6. force value correction dental arch filament moulding process is rescued in gradual change according to claim 5, it is characterized in that described immersion mode be labial teeth down, in quick immersion salt bath until mould center line position stops declining, at the uniform velocity rise after static insulation for some time, static soaking time is 10 ~ 30min, at the uniform velocity lift velocity is 3 ~ 8mm/min, and aging temp is 500 DEG C ~ 580 DEG C.
7. force value correction dental arch filament moulding process is rescued in gradual change according to claim 4, it is characterized in that described graded heat treatment technique is for be wound in mould Upper Anterior Teeth position down by titanium-nickel wire material, be divided into three parts to immerse fast, labial teeth position is immerse the first stage, for some time is incubated, by that analogy until static insulation after immersing completely after being immersed in specified location fast.Wherein aging temp is 500 DEG C ~ 580 DEG C, per stage soaking time is 5 ~ 10min, static soaking time is 10 ~ 30min, water-cooled after coming out of the stove.
8. force value correction dental arch filament moulding process is rescued in the gradual change according to claim 4,5,6 and 7, it is characterized in that described process furnace is salt bath heating stove.
9. a force value correction dental arch filament moulding process is rescued in gradual change, it is characterized in that described technique is carried out according to the following steps: one, ageing treatment, is put in chamber type electric resistance furnace by silk material, aging temp 500 DEG C ~ 580 DEG C, soaking time 20 ~ 40min, water-cooled after coming out of the stove; Two, surface finish process; Three, dental arch filament reducing process, dental arch filament labial teeth part immersed downwards after in acid solution and at the uniform velocity upwards mention with 8 ~ 15mm/min, acid liquor temperature is greater than 80 DEG C, and acid solution proportioning is H
2o: HF: HNO
3=30 ~ 60: 60 ~ 90: 100 ~ 120.
10. a force value correction dental arch filament shaped device is rescued in gradual change, it is characterized in that shaped device comprises die bottom plate (1), two pieces, left and right body die (2), thermal baffle (3), briquetting (4), fastening screw (5).Two pieces, left and right body die (2) and die bottom plate are linked together with welding or mechanical connection manner, middle insertion thermal baffle (3), is fixed with briquetting.
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| CN201410821176.3A CN104546162B (en) | 2014-12-19 | 2014-12-19 | Force value correction dental arch filament and its moulding process and device are rescued in a kind of gradual change |
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| CN201410821176.3A CN104546162B (en) | 2014-12-19 | 2014-12-19 | Force value correction dental arch filament and its moulding process and device are rescued in a kind of gradual change |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568357A (en) * | 2016-01-08 | 2016-05-11 | 江阴法尔胜佩尔新材料科技有限公司 | Nickel-titanium wire obtained through continuous electrochemical polishing |
| CN112872087A (en) * | 2021-02-27 | 2021-06-01 | 苏州英忆新材料有限公司 | Production method of memory alloy wire capable of being automatically shaped |
| CN112935009A (en) * | 2021-02-27 | 2021-06-11 | 苏州英忆新材料有限公司 | Production method of orthodontic wire capable of automatically shaping oral cavity |
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| US4412819A (en) * | 1982-09-15 | 1983-11-01 | Cannon James L | Orthodontic arch wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568357A (en) * | 2016-01-08 | 2016-05-11 | 江阴法尔胜佩尔新材料科技有限公司 | Nickel-titanium wire obtained through continuous electrochemical polishing |
| CN112872087A (en) * | 2021-02-27 | 2021-06-01 | 苏州英忆新材料有限公司 | Production method of memory alloy wire capable of being automatically shaped |
| CN112935009A (en) * | 2021-02-27 | 2021-06-11 | 苏州英忆新材料有限公司 | Production method of orthodontic wire capable of automatically shaping oral cavity |
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| CN104546162B (en) | 2018-03-16 |
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