CN105266906A - Manufacturing method of invisible tooth correcting treatment devices - Google Patents
Manufacturing method of invisible tooth correcting treatment devices Download PDFInfo
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- CN105266906A CN105266906A CN201510799710.XA CN201510799710A CN105266906A CN 105266906 A CN105266906 A CN 105266906A CN 201510799710 A CN201510799710 A CN 201510799710A CN 105266906 A CN105266906 A CN 105266906A
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Abstract
The invention discloses a manufacturing method of invisible tooth correcting treatment devices. According to the method, firstly, an original odonto-maxillary three-dimensional model of a patient is built through a correcting treatment objective and an original odonto-maxillary three-dimensional model; secondly, correcting treatment odonto-maxillary models in different stages of the correcting treatment process are built; then, corresponding three-dimensional printing models are built; corresponding invisible tooth correcting treatment devices are respectively printed out by medial polyethylene according to the three-dimensional printing models; and finally, the invisible tooth correcting treatment devices are polished and ground and are delivered to the patient to be used. By using the method, the invisible tooth correcting treatment devices are directly manufactured without using a solid body objective model, so that the consumption of a great number of light-cured resin materials is avoided; and the problems of high cost and complicated production process of the invisible tooth correcting treatment devices are solved.
Description
Technical field
The invention belongs to orthodontic field, more specifically, relate to a kind of manufacture method of invisible orthotic device.
Background technology
Released in 1998 by AlignTech company of the U.S. at first without bracket invisible orthotic device, introduce domestic market by the domestic Capital University of Medical Sciences and Beijing epoch angel company afterwards, and started to promote the use of at home from 2006.Technology is rescued both compared with NITI Ω arch wire or tooth set with traditional fixing bracket, safer without bracket invisible orthotic device, comfortable, oral cavity tissue can not be scratched because of fixing bracket.Oral cavity can not be affected without bracket invisible orthotic device after patient wears attractive in appearance simultaneously.Patient can get band voluntarily, wears conveniently, and the chair other operating time is short, and without the need to frequent further consultation, therefore invisible orthotic device receives the welcome of increasing patient and orthodontist.
The manufacture method of current invisible orthotic device first obtains patient's tooth jaw data model, generate substep by software simulation and rescue data model, used 3 D-printing or rapid shaping technique to obtain rescuing the physical object model of different phase in process again, finally used the method for vacuum hotpressing correction pressing diaphragm to be made as invisible orthotic device and consign to patient's use after cutting polishing.Each rectification stage of the method needs experience oral cavity data model---physical object model---tedious steps of invisible orthotic device, need in 3 D-printing process to use expensive light-cured resin simultaneously, make the market price of invisible orthotic device relatively high, be difficult to extensively promote at home.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of manufacture method of invisible orthotic device, its object is to directly not manufacture invisible orthotic device by physical object model, the cost solving invisible orthotic device is thus high, the problem of complex production process.
For achieving the above object, according to one aspect of the present invention, provide a kind of manufacture method of invisible orthotic device, comprise the following steps:
(1) rescue dentognathic model according to patient, build the 3 D-printing model of corresponding invisible orthotic device;
(2) according to described 3 D-printing model, utilize Fused Deposition Modeling technique, by medical polyethylene after the heating temperatures thawing of 110 DEG C ~ 140 DEG C, corresponding invisible orthotic device is produced with printing head layering spray printing, printing head is applied to the pressure of 0.1MPa ~ 0.6MPa, in order to avoid produce bubble in preparation process simultaneously;
Preferably, the acquisition pattern rescuing dentognathic model in described step (1) is: first by the original dental jaw data of patient, builds the original dental jaw threedimensional model of patient; Then by rescuing target and described original dental jaw threedimensional model, what build 5 altogether ~ 80 stages in process of rescuing rescues dentognathic model, and rescues described in adjacent phases in dentognathic model, treats that the maximum displacement for the treatment of tooth is 0.25mm.
Preferably, described step (1) is specially, the edge line of 3 D-printing model is set to the camber line departing from crown direction 1mm ~ 2mm from the gum circular arc line rescuing dentognathic model, the height of described 3 D-printing model is set to 0.5mm ~ 1.5mm, make described 3 D-printing model and described dentognathic model of rescuing fit completely to edge line from crown simultaneously, thus construct described 3 D-printing model.
Preferably, in described step (2) layering spray printing, the thickness of every layer is 0.01mm ~ 0.25mm, makes the invisible orthotic device of 3 D-printing have higher precision.
Preferably, the medical polyethylene in described step (2) is Low Density Polyethylene, comprising gross mass percentage ratio be 70% ~ 96% vinyl monomer with VAM.Due to Low Density Polyethylene, to have melting point low, and the characteristic that transparency is high, is more suitable for the 3 D-printing of invisible orthotic device, and with VAM and vinyl monomer for main polymerisation component, its bio-compatibility is good, and stability is higher.
As further preferably, described medical polyethylene comprises the vinyl monomer that mass percent is 35% ~ 50%, the VAM of 35% ~ 50%, the PET monomer of 2% ~ 8% and the ethylene glycol monomers of 2% ~ 8%; Using PET as plasticizer, using ethylene glycol as surfactant, medical polyethylene can be softened at a proper temperature, reach the requirement of 3 D-printing, and solidify at normal temperatures, also stablize nontoxic simultaneously, the demand used in the oral cavity can be adapted to.
In general, the above technical scheme conceived by the present invention compared with prior art, owing to directly not manufacturing invisible orthotic device by physical object model, can obtain following beneficial effect:
1, compared with traditional invisible orthotic device manufacture method, the present invention directly produces invisible orthotic device by 3 D-printing, without the need to physical object model, thus decreases the modeling materials such as light-cured resin, not only simplify production stage, and greatly reduce production cost;
2, the invisible orthotic device that Direct Three-dimensional prints invisible orthotic device and correction pressing diaphragm are made, the link of minimizing cutting processing, not only avoids the waste that cutting processing is brought material, and further simplify production and processing step;
3, in the prior art, in process prepared by invisible orthotic device, needing bleeds with vacuum pump ensures that correction diaphragm and physical model are fitted completely, preparation effect is subject to instrumental effects, and Direct Three-dimensional printing of the present invention obtains invisible orthotic device, can ensure that 3 D-printing model and the tooth jaw data model of invisible orthotic device are fitted completely, therapeutic effect is better.
4, because the thickness of 3 D-printing model can freely be arranged, can print different invisible orthotic devices according to the demand of tooth jaw rectification different phase, degree of freedom is higher;
5, preferably use with vinyl monomer, VAM, the Low Density Polyethylene that PET monomer and ethylene glycol monomers are polymerized is as the raw material of 3 D-printing, not only transparency is high, non-toxic stable, the user demand of invisible orthotic device can be met, reduce the plasticization temperature of material simultaneously and add the surface activity of material, thus having taken into account the demand of 3 D-printing;
6, current invisible orthotic device almost wraps up whole teeth completely, and even coated part gingiva, easily hinders gingival papilla, cause stimulation to it, thus can induce gingival atrophy; And the circle within the 1mm ~ 2mm that the edge line of 3 D-printing model is preferably set to depart to crown direction along the gum circular arc line rescuing dentognathic model, still the oval line thus can not cause covering tooth due to invisible orthotic device comes off, and be also unlikely to produce gingiva stimulates simultaneously;
7, in diagnosis and treatment process, doctor can adjust 3 D-printing model according to the patient's condition of patient, thus invisible orthotic device is produced according to the design of doctor completely, thus minimizing patient rescues required number of stages, more definite realize doctor rescue scheme, reach better therapeutic effect.
Accompanying drawing explanation
Fig. 1 is the manufacture method flow chart of invisible orthotic device of the present invention;
Fig. 2 is invisible orthotic device schematic diagram of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
The invention provides a kind of manufacture method of invisible orthotic device, idiographic flow comprises the following steps, as shown in Figure 1:
(1) original dental jaw threedimensional model is built
Obtain the original dental jaw data of patient with spatial digitizer in mouth, or obtain the tooth jaw Gypsum Fibrosum prototype of patient in advance, then obtain the original dental jaw data of patient by 3-D scanning technology; By Three-dimensional Design Software such as CAD on this tooth jaw data prototype basis, build the original dental jaw threedimensional model of patient.
(2) dentognathic model rescued by structure
Target and original dental jaw threedimensional model model is rescued by patient, dentist carries out the design of scheme of rescuing, then according to rescuing in process 5 ~ 80 stages (quantity specifically rescuing the stage formulate for patient according to the concrete condition of patient and doctor rescue scheme and determine) rescue target, Three-dimensional Design Software is utilized to create out corresponding tooth jaw data model, wherein treat that treating tooth often walks the maximum displacement rescued is 0.25mm at every turn, to ensure that tooth is unlikely to dental bed and loosens while rescuing, and the amount of the rescuing difference needed for different dental, the displacement of per stage different dental also can be distinguished to some extent.At present, when carrying out tooth jaw with traditional metal bracket appliance and correcting, the keeper of usual the last stage is also adopt invisible orthotic device manufacture, now, then rescue dentognathic model, directly using original dental jaw threedimensional model as rescuing dentognathic model without the need to building.
(3) the 3 D-printing model of invisible orthotic device is built
Utilize Three-dimensional Design Software, the edge line of 3 D-printing model is set to the camber line departing from crown direction 1mm ~ 2mm from the gum circular arc line rescuing dentognathic model, the height of described 3 D-printing model is set to 0.5mm ~ 1.5mm, make described 3 D-printing model and described dentognathic model of rescuing fit completely to edge line from crown simultaneously, thus construct the 3 D-printing model of complete invisible orthotic device.The height of 3 D-printing model is the thickness of invisible orthotic device, generally arrange according to demand during design, thickness is crossed thin meeting and is caused the Orthodontic force of printing not enough and perfectly cannot realize rectifying effect, blocked up, directly can affect occluding relation, therefore generally select 0.8mm as the thickness of invisible orthotic device, but when invisible orthotic device uses as keeper (the last stage rescued, what need the long period wears an invisible orthotic device to keep rectifying effect), the thickness of invisible orthotic device can be set to 1.2mm ~ 1.5mm, ensure to be unlikely crack damage in life-time service process, the three-dimensional invisible orthotic device data model generated in addition must be fitted completely with tooth jaw data model, thus adhesive force when ensureing enough wearing, and can not come off wearing in process, can also according to the requirement according to dentist and patient to the amendment in appliance data model edge and details and adjustment (such as, according to patient's periodontal situation at that time and the health degree of gingiva, the amount of rescuing that the laminating degree of suitable minimizing invisible orthotic device and each invisible orthotic device provide, or the edge line of 3 D-printing model is adjusted, ensureing that appliance is adeciduate while, patient is worn more comfortable),
The edge line of usual invisible orthotic device can design along gum circular arc line distance 1mm ~ about 2mm, its reason is, if close to crossing from gum circular arc line, gingiva or damage gingiva can be stimulated, if hypertelorism, its degree of laminating can be made to decline, thus facing is easily come off, thus attenuating Orthodontic force, reduce rectifying effect), more to fit the tooth of patient, simultaneously can not to periodontal, gingiva and gingival papilla cause stimulation, are providing the misery and risk more accurately effectively rescuing and reduce side effect and patient simultaneously.
(4) invisible orthotic device is printed
By in special for the 3 D-printing mode input of invisible orthotic device 3D printer (as with FDM class three-dimensional printer), according to described 3 D-printing model, by medical polyethylene after the heating temperatures thawing of 110 DEG C ~ 140 DEG C, with printing head layering spray printing, the thickness of every layer of spray printing is 0.01mm ~ 0.25mm, thus successively produce corresponding invisible orthotic device, as shown in Figure 2, printing head is applied to the pressure of 0.1MPa ~ 0.6MPa simultaneously, make air expansion, and discharge from Medical polyethylene material, in order to avoid print the invisible orthotic device generated to remain bubble, thus affect its service life, aesthetic property and Orthodontic force, the 3 D-printing materials'use of invisible orthotic device is all can be used as at 110 DEG C ~ 140 DEG C thermoplastic medical low-density polyethylene materials that can dissolve, such as with the PET monomer of 2wt% ~ 8wt%, the ethylene glycol monomers of 2wt% ~ 8wt%, the Medical polyethylene material of the VAM of 35wt% ~ 50wt% and the vinyl monomer polymerization of 35wt% ~ 50wt%, wherein, vinyl acetate and ethylene are as its main component, mainly make use of it stablizes nontoxic, bio-compatibility is good, good mechanical property and transparent characteristic, be applicable to invisible orthotic device, and PET is added on wherein, as plasticiser, the softening temperature of medical polyethylene can be reduced, make it can melt the material becoming and be suitable for 3 D-printing at 110 DEG C ~ 140 DEG C temperature, ethylene glycol uses mainly as surfactant in the material, make when 3 D-printing, the dispersive property of material is better, the structure of the invisible orthotic device produced is more even.By the reasonably optimizing of material, it can be made not only to meet the demand of human oral cavity life-time service, can also meeting requirements on three-dimensional print demand.
(5) polishing grinding
By described invisible orthotic device polishing grinding, make surface roughness≤0.1 of described invisible orthotic device, then packaging payment patient uses according to doctor's advice.
According to the inventive method, can once print all appliances, consigning to patient allows patient wear use by the stage, until corrected, also part appliance can once be printed, previous to the invisible orthotic device in several stage wait being finished, further consultation again, adjustment in details is carried out (such as according to the further consultation of patient and the appliance 3 D-printing model of feedback to last stages, the displacement that the patient rescuing target reduces tooth is not reached for actual rescuing, or increase the number of stages rescued), then print the invisible orthotic device of aft section.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a manufacture method for invisible orthotic device, is characterized in that, comprises the following steps:
(1) rescue dentognathic model according to patient, build the 3 D-printing model of corresponding invisible orthotic device;
(2) according to described 3 D-printing model, utilize Fused Deposition Modeling technique, by medical polyethylene after the heating temperatures thawing of 110 DEG C ~ 140 DEG C, corresponding invisible orthotic device is produced with printing head layering spray printing, printing head is applied to the pressure of 0.1MPa ~ 0.6MPa, in order to avoid produce bubble in preparation process simultaneously;
(3) by described invisible orthotic device polishing grinding, surface roughness≤0.1 of described invisible orthotic device is made.
2. manufacture method as claimed in claim 1, it is characterized in that, the acquisition pattern rescuing dentognathic model in described step (1) is: first by the original dental jaw data of patient, builds the original dental jaw threedimensional model of patient; Then by rescuing target and described original dental jaw threedimensional model, what build 5 altogether ~ 80 stages in process of rescuing rescues dentognathic model, and rescues described in adjacent phases in dentognathic model, treats that the maximum displacement for the treatment of tooth is 0.25mm.
3. manufacture method as claimed in claim 1, it is characterized in that, described step (1) is specially, the edge line of 3 D-printing model is set to the camber line departing from crown direction 1mm ~ 2mm from the gum circular arc line rescuing dentognathic model, the height of described 3 D-printing model is set to 0.5mm ~ 1.5mm, make described 3 D-printing model and described dentognathic model of rescuing fit completely to edge line from crown simultaneously, thus construct described 3 D-printing model.
4. manufacture method as claimed in claim 1, it is characterized in that, in described step (2) layering spray printing, the thickness of every layer is 0.01mm ~ 0.25mm.
5. manufacture method as claimed in claim 1, it is characterized in that, the medical polyethylene in described step (2) is Low Density Polyethylene, comprising gross mass percentage ratio be 70% ~ 96% vinyl monomer with VAM.
6. manufacture method as claimed in claim 5, it is characterized in that, described medical polyethylene comprises the vinyl monomer that mass percent is 35% ~ 50%, the VAM of 35% ~ 50%, the PET monomer of 2% ~ 8% and the ethylene glycol monomers of 2% ~ 8%.
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| CN105919682A (en) * | 2016-06-06 | 2016-09-07 | 西安博恩生物科技有限公司 | Rapid forming production method of personalized customization concealed teeth correcting equipment |
| CN106725926A (en) * | 2016-12-20 | 2017-05-31 | 有研医疗器械（北京）有限公司 | A kind of memorial alloy invisible orthotic device without bracket and preparation method thereof |
| CN107307916A (en) * | 2017-08-15 | 2017-11-03 | 上海爱圣美科技有限公司 | The manufacture method and correcting method of hidden tooth appliance |
| CN109069226A (en) * | 2016-05-17 | 2018-12-21 | Y-M.赵 | Retainer and its manufacturing method |
| CN109481046A (en) * | 2018-10-29 | 2019-03-19 | 山东迈尔医疗科技有限公司 | A kind of 3D printing invisible orthotic device without bracket |
| CN109498188A (en) * | 2019-01-10 | 2019-03-22 | 刘兮 | A kind of soft lining formula stealth dental appliance and its manufacturing method |
| CN109512533A (en) * | 2018-10-26 | 2019-03-26 | 金黎 | Method for manufacturing false teeth for invisible orthodontic tooth |
| CN109567961A (en) * | 2019-01-22 | 2019-04-05 | 刘兮 | A kind of stealth dental appliance model and its application method |
| CN112451130A (en) * | 2020-12-03 | 2021-03-09 | 北京联袂义齿技术有限公司 | Invisible tooth socket with memory function, cleaning tool and using method of invisible tooth socket |
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| CN117338453A (en) * | 2023-10-09 | 2024-01-05 | 中山大学附属口腔医院 | Design method of bracket-free invisible appliance based on biomechanical calculation |
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Cited By (17)
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| CN109069226A (en) * | 2016-05-17 | 2018-12-21 | Y-M.赵 | Retainer and its manufacturing method |
| CN109069226B (en) * | 2016-05-17 | 2021-09-14 | Ca-数字有限责任公司 | Retainer and method of manufacturing the same |
| CN105919682A (en) * | 2016-06-06 | 2016-09-07 | 西安博恩生物科技有限公司 | Rapid forming production method of personalized customization concealed teeth correcting equipment |
| CN106725926A (en) * | 2016-12-20 | 2017-05-31 | 有研医疗器械（北京）有限公司 | A kind of memorial alloy invisible orthotic device without bracket and preparation method thereof |
| CN107307916A (en) * | 2017-08-15 | 2017-11-03 | 上海爱圣美科技有限公司 | The manufacture method and correcting method of hidden tooth appliance |
| CN109512533A (en) * | 2018-10-26 | 2019-03-26 | 金黎 | Method for manufacturing false teeth for invisible orthodontic tooth |
| CN109481046A (en) * | 2018-10-29 | 2019-03-19 | 山东迈尔医疗科技有限公司 | A kind of 3D printing invisible orthotic device without bracket |
| CN109498188A (en) * | 2019-01-10 | 2019-03-22 | 刘兮 | A kind of soft lining formula stealth dental appliance and its manufacturing method |
| CN109567961A (en) * | 2019-01-22 | 2019-04-05 | 刘兮 | A kind of stealth dental appliance model and its application method |
| CN113134973A (en) * | 2020-01-20 | 2021-07-20 | 上海阔鸿信息科技有限公司 | Method for manufacturing shell-shaped dental instrument with accessories |
| CN112451130A (en) * | 2020-12-03 | 2021-03-09 | 北京联袂义齿技术有限公司 | Invisible tooth socket with memory function, cleaning tool and using method of invisible tooth socket |
| CN112757645A (en) * | 2020-12-24 | 2021-05-07 | 北京缔佳医疗器械有限公司 | Method for 3D printing of invisible appliance |
| CN114316156A (en) * | 2022-01-10 | 2022-04-12 | 深圳锐沣科技有限公司 | Photocuring resin for 3D printing appliance and preparation method thereof |
| CN117338453A (en) * | 2023-10-09 | 2024-01-05 | 中山大学附属口腔医院 | Design method of bracket-free invisible appliance based on biomechanical calculation |
| CN117338453B (en) * | 2023-10-09 | 2024-10-25 | 中山大学附属口腔医院 | Design method of bracket-free invisible appliance based on biomechanical calculation |
| CN117122428A (en) * | 2023-10-26 | 2023-11-28 | 上海马可菲斯医疗技术有限公司 | Tooth-beautifying tooth socket with high simulation effect |
| CN117122428B (en) * | 2023-10-26 | 2024-01-02 | 上海马可菲斯医疗技术有限公司 | Tooth-beautifying tooth socket with high simulation effect |
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