CN110435056A - A kind of production method of invisible orthotic device - Google Patents

A kind of production method of invisible orthotic device Download PDF

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Publication number
CN110435056A
CN110435056A CN201910730017.5A CN201910730017A CN110435056A CN 110435056 A CN110435056 A CN 110435056A CN 201910730017 A CN201910730017 A CN 201910730017A CN 110435056 A CN110435056 A CN 110435056A
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China
Prior art keywords
orthotic device
image data
invisible orthotic
slicing layer
production method
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CN201910730017.5A
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Chinese (zh)
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CN110435056B (en
Inventor
李洪文
段光远
刘荣杰
朱吉萌
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Aidit (qinhuangdao) Polytron Technologies Inc
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Aidit (qinhuangdao) Polytron Technologies Inc
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Priority to CN201910730017.5A priority Critical patent/CN110435056B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/38Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842Manufacturing moulds, e.g. shaping the mould surface by machining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/38Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10Forming by pressure difference, e.g. vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26Component parts, details or accessories; Auxiliary operations
    • B29C51/30Moulds
    • B29C51/36Moulds specially adapted for vacuum forming, Manufacture thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30Auxiliary operations or equipment
    • B29C64/386Data acquisition or data processing for additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The present invention relates to 3D printing technique field, the production method for disclosing a kind of invisible orthotic device, comprising: design based on digital stealth correction model is simultaneously sliced it, to obtain slicing layer;By slicing layer number consecutively and it is divided into odd-level and two kinds of even level;One of odd-level and even level slicing layer is selected to carry out image procossing, image data size after making image procossing is less than actual image data size, and using the image data size after image procossing as image data needed for printing, another slicing layer image data required as printing using actual image data size;According to image data needed for printing, stealthy correction model is printed, the stealthy correction model with cross grain is obtained;The invisible orthotic device of cross grain is provided according to stealthy correction model plastics sucking moulding.The production method of invisible orthotic device provided by the invention can reduce the reflective phenomenon of invisible orthotic device, improve stealthy effect, while can be improved the adhesion effect of invisible orthotic device.

Description

A kind of production method of invisible orthotic device
Technical field
The present invention relates to 3D printing technique field more particularly to a kind of production methods of invisible orthotic device.
Background technique
Using bloom and the invisible orthotic device of transparent tooth film production is worn due to having the characteristics that transparent effect and easily plucking And it is widely used in orthodontic industry.In the production method of existing invisible orthotic device, usually make invisible orthotic device Surfaces externally and internally keeps smooth, and the invisible orthotic device of such method production usually there will be serious reflective phenomenon, cause hidden Shape effect is deteriorated, and the adhesion effect of invisible orthotic device is bad, is easy to fall off from tooth.
Therefore, a kind of production method of novel invisible orthotic device is needed to solve the above technical problems.
Summary of the invention
Based on the above, the purpose of the present invention is to provide a kind of production methods of invisible orthotic device, with existing skill Art is compared, and the inner surface of invisible orthotic device can be made with cross grain, reflective phenomenon is reduced, improve stealthy effect, together When improve the adhesion effect of invisible orthotic device, efficiently avoid invisible orthotic device and fall off.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of production method of invisible orthotic device, includes the following steps:
S1. design based on digital stealth correction model;
S2. slicing treatment is carried out to the three-dimensional data for digitizing stealthy correction model, to obtain slicing layer;
S3. by the slicing layer number consecutively, and the slicing layer is divided by odd-level and even level according to the number Two kinds;
S4. it selects slicing layer described in one of the odd-level and the even level to carry out image procossing, makes at image The image data size of this kind of slicing layer after reason is less than actual image data size, and by the picture number after image procossing According to size as image data needed for this kind of slicing layer printing, another slicing layer is with actual image data size As image data needed for this kind of slicing layer printing;
S5. image data needed for two kinds of printings according to obtained in step S4 is printed using 3D printing equipment Stealthy correction model makes a kind of stamp with the size of slicing layer be less than actual size, to obtain surface with cross grain The stealth correction model;
S6. positive pressure pressed film method is utilized, inner surface is gone out with cross grain according to the stealthy correction model plastics sucking moulding Invisible orthotic device.
Further, in step s 4, in image procossing, pass through deletion and/or a kind of slice of Fuzzy processing The pixel at layer edge makes the image data size of this kind of slicing layer be less than real data size.
Further, in step sl, comprising:
S11. the tooth jaw data of patient are acquired;
S12. according to the tooth jaw data of the patient, row's tooth is carried out using correction software and is designed;
S13. the result for arranging tooth design is exported as the model file of .stl format.
Further, in step s 2, comprising:
S21. the model file of the .stl format in step S13 is imported into software for composing;
S22. slice is carried out using model file of the software for composing to the .stl format and typesetting is handled, to obtain The slicing layer.
Further, in step s 5, comprising:
S51. the stealthy correction model is placed on positive pressure film laminator;
S52. it heats gutta-percha piece and makes the hot plastic uptake of gutta-percha piece on the stealthy correction model, just by the stealth Cross grain on abnormal model is transferred to the gutta-percha on piece, forms the invisible orthotic device that inner surface has cross grain.
Further, after step s 5, further includes:
S6. the invisible orthotic device is trimmed and is polished.
Further, in step s 2, the range of the thickness a of the slicing layer is 0.01mm-0.2mm.
Further, in step s 2, the thickness a of the slicing layer is 0.1mm.
Further, in step s 5, the range of the depth b of the cross grain on the stealthy correction model is 0.01- 0.5mm。
Further, in step s 4, the depth b of the cross grain on the stealthy correction model is 0.1mm.
The invention has the benefit that
Slicing layer is divided into odd-level and two kinds of even level by the production method of invisible orthotic device provided by the invention, and Image procossing is carried out to one of slicing layer, the image data size of this kind of slicing layer is made to be less than actual image data size, After image data size after according to image procossing is printed, the stamp with the size of this kind of slicing layer will be less than actual size, And another slicing layer is printed according to actual image data size, by the printing alternate of odd-level and even level, thus The stealthy correction model that surface has cross grain can be obtained, then there is further according to surface the stealthy correction mould of cross grain Type goes out the invisible orthotic device that inner surface has cross grain using positive pressure pressed film method plastics sucking moulding.Since cross grain can reach To irreflexive purpose, so the reflective phenomenon of invisible orthotic device can be reduced, stealthy effect is improved, while cross grain is advantageous In the adhesion effect for improving invisible orthotic device, it is effectively prevented from the phenomenon that invisible orthotic device falls off.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, institute in being described below to the embodiment of the present invention Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also implement according to the present invention The content of example and these attached drawings obtain other attached drawings.
Fig. 1 is the flow diagram of the production method of invisible orthotic device provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of cross grain provided in an embodiment of the present invention;
Fig. 3 is the flow diagram of step S1 in the production method of invisible orthotic device provided in an embodiment of the present invention;
Fig. 4 is the flow diagram of step S2 in the production method of invisible orthotic device provided in an embodiment of the present invention;
Fig. 5 is the flow diagram of step S5 in the production method of invisible orthotic device provided in an embodiment of the present invention.
In figure:
1- slicing layer;11- odd-level;12- even level.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the present embodiment provides a kind of production method of invisible orthotic device, include the following steps:
S1. design based on digital stealth correction model;
S2. slicing treatment is carried out to the three-dimensional data for digitizing stealthy correction model, to obtain slicing layer 1;
S3. by 1 number consecutively of slicing layer, and slicing layer 1 is divided to for odd-level 11 and 12 two kinds of even level according to number;
S4. selection one of odd-level 11 and even level 12 slicing layer 1 carries out image procossing, being somebody's turn to do after making image procossing The image data size of kind of slicing layer 1 is less than actual image data size, and using the image data size after image procossing as This kind of slicing layer 1 prints required image data, and another slicing layer 1 is using actual image data size as this kind of slicing layer 1 Image data needed for printing;
S5. image data needed for two kinds of printings according to obtained in step S4, is printed stealthy using 3D printing equipment Correction model makes a kind of stamp with the size of slicing layer 1 be less than actual size, to obtain the stealthy correction that surface has cross grain Model;
S6. positive pressure pressed film method is utilized, the stealth that inner surface has cross grain is gone out according to stealthy correction model plastics sucking moulding Appliance.
Illustratively, it is assumed that image procossing is carried out to the slicing layer 1 for being divided into even level 12, makes the figure of this kind of slicing layer 1 Picture data size is less than real data size, and even level 12 is beaten according to the image data after image procossing in printing Print, and odd-level 11 does not do image procossing, odd-level 11 is printed according to actual image data, passes through odd-level 11 and even number The printing alternate of layer 12, ultimately forms the stealthy correction model with cross grain.In addition, it is necessary to, it is noted that due to odd number The stamp with the size of layer 11 is equal to real data size, so the size of stealthy correction model is determined by odd-level 11, and it is even Several layers 12 of stamp with the size is only slightly less than real data size, so shadow will not be caused to the overall dimensions of stealthy correction model It rings, can be finally showed instead with cross grain and the almost the same stealthy correction model of size and real data.
Slicing layer 1 is divided to for odd-level 11 and 12 liang of even level by the production method of invisible orthotic device provided in this embodiment Kind, and image procossing is carried out to one of slicing layer 1, so that the image data size of this kind of slicing layer 1 is less than real data Size, after image data after according to image procossing is printed, the stamp with the size of this kind of slicing layer 1 will be less than real data Size, and another slicing layer 1 is printed according to actual image data, is beaten by the alternating of odd-level 11 and even level 12 Then print has the hidden of cross grain further according to surface so as to obtain the stealthy correction model that surface has cross grain Shape correction model goes out the invisible orthotic device that inner surface has cross grain using positive pressure pressed film method plastics sucking moulding.Due to lateral line Reason can reach irreflexive purpose, so can reduce the reflective phenomenon of invisible orthotic device, improve stealthy effect, while laterally Texture is conducive to improve the adhesion effect of invisible orthotic device, is effectively prevented from the phenomenon that invisible orthotic device falls off.
In addition, it is necessary to which, it is noted that the production method of invisible orthotic device provided in this embodiment, is utilizing 3D printing equipment When printing stealthy correction model, odd-level 11 is identical with the time for exposure of even level 12.And the exposure of odd-level 11 and even level 12 It is identical between light time, it is possible, firstly, to improve the controllability and printing success rate of time for exposure, avoid due to odd-level 11 and even number The time for exposure difference of layer 12 selects improper the phenomenon that causing cross grain printing failure or stealthy correction model printing to fail; Secondly, the binding force between odd-level 11 and even level 12 can be improved, avoid due to odd-level 11 and the exposure of even level 12 Time difference, curing reaction degree difference, leads to inter-layer bonding force difference and there is a situation where printing failures;Again, it expands and beats The Application Range of material is printed, i.e. the alternative of printed material is bigger, is not limited by time for exposure difference;Finally, can simplify Operating procedure because when odd-level 11 and 12 time for exposure of even level difference, time for exposure difference need the activity according to material, The indexs such as color and transmission depth are adjusted, cumbersome.
It is also desirable to which, it is noted that the method provided in this embodiment for generating cross grain, is not limited in applying In terms of making invisible orthotic device, it can be applied in the model that other need to generate cross grain or increase artistic feeling, herein With no restriction.
Preferably, in step s 4, in image procossing, pass through deletion and/or a kind of 1 edge of slicing layer of Fuzzy processing Pixel, make this kind of slicing layer 1 image data size be less than actual image data size.For example, 12 edge of dual numbers layer Pixel handled, can directly will not when pixel is divided into incomplete pixel by the edge of even level 12 Complete pixel point deletion, or in order to meet size require that a part of complete pixel can also be deleted, and in order to guarantee The ride comfort at 12 edge of even level can carry out Fuzzy processing with the pixel at 12 edge of dual numbers layer, to can either make idol Several layers 12 of image data size is less than actual image data size, and can guarantee the flatness at 12 edge of even level, in turn Make the stealthy correction model printed that not only there is cross grain, but also there is smooth outer profile.
Preferably, as shown in Fig. 2, in step s 2, the range of the thickness a of slicing layer 1 is 0.01mm-0.2mm.Pass through control The thickness of slicing layer 1 processed can be avoided odd-level 11 or the overall dimensions of 12 pairs of even level stealthy correction models impact, really Protect the dimensional accuracy of entire stealthy correction model.Optionally, in step s 2, the thickness a of slicing layer 1 is 0.1mm.Certainly, In In other embodiments, the thickness a of slicing layer 1 can also be 0.05mm, 0.08mm, 0.12mm, 0.15mm or 0.18mm etc., only It wants the dimensional accuracy that can guarantee entire stealthy correction model and can print successfully, this is not restricted.
Preferably, as shown in Fig. 2, in step s 4, the range of the depth b of the cross grain on stealthy correction model is 0.01-0.5mm.The range of the depth b of cross grain i.e. on invisible orthotic device inner surface is 0.01-0.5mm.It is horizontal by control The overall dimensions that can further avoid odd-level 11 or 12 pairs of even level stealthy correction models to the depth of texture impact, The dimensional accuracy of entire stealthy correction model is further increased, while being beneficial to prevent the case where printing fails.Optionally, In step s 4, the depth b of the cross grain on stealthy correction model is 0.1mm.Certainly, in other embodiments, lateral line The depth b of reason can also be 0.05mm, 0.08mm, 0.12mm, 0.15mm, 0.18mm or 0.2mm etc., as long as can guarantee whole It the dimensional accuracy of a stealth correction model and can print successfully, this is not restricted.
Further, as shown in figure 3, in step sl, comprising:
S11. the tooth jaw data of patient are acquired;
S12. according to the tooth jaw data of patient, row's tooth is carried out using correction software and is designed;
S13. the result for arranging tooth design is exported as the model file of .stl format.
In step s 11, tooth jaw number can be obtained from patient mouthful by way of scanning in mouth or stinging impression scanning According to.Several treatment stages may be divided into when row's tooth design, each treatment stage has expected rectifying effect to be achieved, so Each treatment stage can design row's dental cast, while export the model file of corresponding .stl format.
Further, as shown in figure 4, in step s 2, comprising:
S21. the model file of the .stl format in step S13 is imported into software for composing;
S22. slice is carried out using model file of the software for composing to .stl format and typesetting is handled, to obtain slicing layer 1. The purpose of slice is that 3 D graphic data is changed into several two dimensional images according to pre-set thickness, and 3D printer is facilitated to set It is standby to carry out imaging solidification.
Further, in step s 4,3D printing equipment can beat for LCD photocuring 3D printing equipment, DLP photocuring 3D Printing apparatus or SLA photocuring 3D printing equipment.
Further, as shown in figure 5, in step s 5, comprising:
S51. stealthy correction model is placed on positive pressure film laminator;
S52. it heats gutta-percha piece and makes the hot plastic uptake of gutta-percha piece on stealthy correction model, by the cross on stealthy correction model It is transferred to gutta-percha on piece to texture, forms the invisible orthotic device that inner surface has cross grain.
Further, after step s 5, further includes: S6. is trimmed and polished to invisible orthotic device.By to stealth Appliance is trimmed and is polished, and the comfort of invisible orthotic device wearing can be improved.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation, It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.

Claims (10)

1. a kind of production method of invisible orthotic device, which comprises the steps of:
S1. design based on digital stealth correction model;
S2. slicing treatment is carried out to the three-dimensional data for digitizing stealthy correction model, to obtain slicing layer;
S3. by the slicing layer number consecutively, and the slicing layer is divided by odd-level and two kinds of even level according to the number;
S4. slicing layer described in one of the odd-level and the even level is selected to carry out image procossing, after making image procossing The image data size of this kind of slicing layer be less than actual image data size, and by the image data ruler after image procossing It is very little as image data needed for this kind of slicing layer printing, another slicing layer using actual image data size as Image data needed for this kind of slicing layer printing;
S5. image data needed for two kinds of printings according to obtained in step S4 is printed stealthy using 3D printing equipment Correction model makes a kind of stamp with the size of slicing layer be less than actual size, to obtain surface with described in cross grain Stealthy correction model;
S6. positive pressure pressed film method is utilized, the stealth that inner surface has cross grain is gone out according to the stealthy correction model plastics sucking moulding Appliance.
2. the production method of invisible orthotic device according to claim 1, which is characterized in that in step s 4, at image When reason, by deletion and/or a kind of pixel at the slicing layer edge of Fuzzy processing, make the image of this kind of slicing layer Data size is less than actual image data size.
3. the production method of invisible orthotic device according to claim 1, which is characterized in that in step sl, comprising:
S11. the tooth jaw data of patient are acquired;
S12. according to the tooth jaw data of the patient, row's tooth is carried out using correction software and is designed;
S13. the result for arranging tooth design is exported as the model file of .stl format.
4. the production method of invisible orthotic device according to claim 3, which is characterized in that in step s 2, comprising:
S21. the model file of the .stl format in step S13 is imported into software for composing;
S22. slice is carried out using model file of the software for composing to the .stl format and typesetting is handled, described in obtaining Slicing layer.
5. the production method of invisible orthotic device according to claim 1, which is characterized in that in step s 5, comprising:
S51. the stealthy correction model is placed on positive pressure film laminator;
S52. it heats gutta-percha piece and makes the hot plastic uptake of gutta-percha piece on the stealthy correction model, by the stealthy correction mould Cross grain in type is transferred to the gutta-percha on piece, forms the invisible orthotic device that inner surface has cross grain.
6. the production method of invisible orthotic device according to claim 1, which is characterized in that after step s 5, further includes:
S6. the invisible orthotic device is trimmed and is polished.
7. the production method of invisible orthotic device according to claim 1, which is characterized in that in step s 2, the slice The range of the thickness a of layer is 0.01mm-0.2mm.
8. the production method of invisible orthotic device according to claim 7, which is characterized in that in step s 2, the slice The thickness a of layer is 0.1mm.
9. the production method of invisible orthotic device according to claim 1, which is characterized in that in step s 5, the stealth The range of the depth b of cross grain on correction model is 0.01-0.5mm.
10. the production method of invisible orthotic device according to claim 9, which is characterized in that in step s 4, the stealth The depth b of cross grain on correction model is 0.1mm.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113171190A (en) * 2021-05-31 2021-07-27 四川大学 Preparation method of orthodontic appliance with tooth arrangement function

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