CN107137149A - The method for fast mfg of the stealthy facing of 3D printing gear division correction based on DLP techniques - Google Patents
The method for fast mfg of the stealthy facing of 3D printing gear division correction based on DLP techniques Download PDFInfo
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- CN107137149A CN107137149A CN201710160071.1A CN201710160071A CN107137149A CN 107137149 A CN107137149 A CN 107137149A CN 201710160071 A CN201710160071 A CN 201710160071A CN 107137149 A CN107137149 A CN 107137149A
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- dentognathic model
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/002—Orthodontic computer assisted systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- Engineering & Computer Science (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dentistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The present invention provides a kind of method for fast mfg of the stealthy facing of 3D printing gear division correction based on DLP techniques, and dentognathic model includes corona, gum, pedestal.Described corona, gum and base interior are a kind of entity structure on space structure, and the making material of use is the photosensitive resin material for 3D printing.The design method of dentognathic model is that, by Computer Design digital model, the processing method of dentognathic model is the 3D printing technique of DLP (face exposure shaping), is comprised the following steps successively：(1) acquisition and reparation of digital model, the layering of (2) model data, (3) 3D printing shaping.Present invention improves the surface roughness of traditional fabrication gypsum dentognathic model, the weight of dentognathic model is reduced, retention figures model is more beneficial for the preservation of data, saves the cost of production and transportation.
Description
Technical field
The present invention relates to material increasing field and gear division field, and in particular to a kind of 3D printing gear division based on DLP techniques
The method for fast mfg of correction stealth facing.
Background technology
In recent years, mouth cavity orthodontic invisalign technology progressively develops and moved to maturity in China.With the U.S., China etc. one
The orthodontist and Software Engineer's Interdisciplinary collaboration of a little countries, using CAD/CAM technologies, with advanced making side
Method, produces a kind of personalized high molecule plastic appliance.The appliance can produce a certain size Orthodontic force and make tooth
Progressively move, so as to overcome the shortcoming of conventional orthodontic method.
The weight of traditional dentognathic model is larger, in addition with traditional plaster cast make invisible orthotic device when, it is necessary to
Heating by manually moving the position of corona, this method by virtue of experience, do not quantify, precision it is not high；This techniques of DLP are in 3D
It is quicker than SLA in printing, and precision is higher.
The content of the invention
It is an object of the invention to provide a kind of weight for both having alleviated traditional dentognathic model, retaining for model is improved
Property and it is easily transportability, in turn simplify the triviality when making invisible orthotic device, and directly can be produced by thermoplastic press mold
The method for fast mfg of the stealthy facing of the 3D printing gear division correction based on DLP techniques of invisible orthotic device.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
1) importing digital model：Three dimensional point cloud " importing " reverse engineering software of dentognathic model to be designed is obtained
To the dentognathic model to be designed；
2) repairing model：Reparation operation is carried out to dentognathic model in reverse engineering software；
3) slicing treatment：By step 2) repair dentognathic model data import 3D printer DLP softwares in, set it is each
Slicing treatment is carried out after the thickness of layer；
4) 3D printing is molded：By step 3) obtain slice of data import 3D printing former terminal, start printing, obtain
Obtain dentognathic model；
5) according to plan is actually rescued, medical cycle, repeat step 1 are planned) -4) the tooth jaw mould in each cycle is printed respectively
Type；
6) according to step 5) dentognathic model in each cycle of printing handled using thermoplastic shaping technology and accurate grinding, system
Into the stealthy facing of gear division correction series.
Step 3) every layer of thickness is set for 50 μm.
Described step 4) printed material using photosensitive resin be the acrylic resin of epoxy one.
The step 4) dentognathic model that obtains carries out cleaning the uncured resin in surface with alcohol, after cleaning is finished, general
Dentognathic model, which is placed under high-pressure sodium lamp, to expose, and makes its internal uncured resin solidification, increases mechanical strength.
The present invention, different from this principles for subtracting material digitlization cutting of CAD/CAM, is that (DLP, face exposes into by 3D printing
Type) increases material manufacturing technology, to produce the dentognathic model during rescuing, concrete principle is the DMD according to DLP technologies in work
Face imaging is exposed operation to moulding material as dynamic mask, and exposure every time makes one layer, successively adds up.Institute of the present invention
The method stated has the characteristics that compared to other manufacture methods：Shaping speed is fast, manufactures and designs intellectuality, low manufacture cost,
Highly flexible.
Because the material of dentognathic model of the present invention uses photosensitive resin (acrylic resin of epoxy one), photosensitive resin is
It is made up of resin monomer (monomer) and performed polymer (oligomer), containing active function groups, it is in ultraviolet (wavelength 250-
300 nanometers) irradiation under by initiated polymerization in the presence of sensitising agent (light initiator).The material settling out degree
Height, tolerance is strong, is conducive to making invisible orthotic device.
The present invention its effect compared with the technology that conventional gypsum makes dentognathic model is embodied in：
1st, production efficiency increases, and overcomes with the triviality of gypsum perfused technology, time consuming nature；
2nd, dentognathic model remains the data of its digital model, convenient to preserve；
3rd, dentognathic model also provides facility in the stage for making invisible orthotic device, can be by printing one group of tooth jaw mould
Type, then a set of invisible orthotic device is made by thermoplastic film laminator, overcome and the error produced is operated to plaster cast by hand；
4th, dentognathic model material uses the photosensitive resin material for 3D printing, and stability is high, and tolerance is strong, quality
Gently, it is easy to storage and transport；
5th, DLP (face exposure shaping) 3D printing technique, low manufacture cost, printing precision is of a relatively high, and shaping speed is fast, fits
Close mass production.
Embodiment
The oral cavity three-dimensional data that the band of acquisition is rescued into patient imports computer, goes out to rescue by computer software design
The dentognathic model of journey, described dentognathic model includes corona and part gum, is entity on space structure inside the phase, and corona
It is structure as a whole design with part gum.Size and the tooth jaw data 1 of patient to be rescued:1.
The material of tooth jaw of the present invention is the photosensitive resin i.e. acrylic resin of epoxy one for 3D printing；Using DLP, (face exposes
Seterolithography) 3D printing moulding process.
The present invention is design processing by the following method：
1) three dimensional point cloud is imported：By the cloud data i.e. three dimensional point cloud of dentognathic model obtained from scanner
" importing " reverse engineering software obtains the dentognathic model to be designed；
2) repairing model：Reparation operation is carried out to dentognathic model in data processing software, one is become completely, puts down
It is sliding, the intact threedimensional model of morphologic appearance, and stored with stl file form；
3) stl file is imported：By step 2) in the file of STL forms that obtains import DLP (face exposure shaping) 3D printing
In the software of former, slicing treatment is carried out to it, every layer of thickness (being typically chosen 50 μm) is set, and with tray of cutting into slices
Formula is stored；
4) 3D printer is imported：The section File Format Data obtained more than after the completion of several steps imports DLP3D
Printer program processing terminal, carries out section information processing and sets print parameters, selection photosensitive resin is the acrylic acid of epoxy one
Resin is printed material, and selection performs printing function.3D printing former will be according to preset program, cutting based on threedimensional model
Tomographic image, the dynamic mask of generation.Ultraviolet lighting, by transmiting and reflecting, is formed as mask image to after on mask
Pattern, then through reducing glass, finally in the resin pool of liquid photosensitive resin is contained, the mask that photosensitive resin generation is reduced
Image.The image shone by the bright place of mask image just solidify to form a thin layer, and the place not shone then or liquid, so makes
With the irradiation of each mask once with regard to one layer can be made, so repeat in layer, final printing is stacked from top to bottom and completes tooth jaw
Model；
Dentognathic model will be obtained will be carried out cleaning the uncured resin in surface with alcohol, after cleaning is finished, by dentognathic model
It is placed under high-pressure sodium lamp and exposes a period of time, makes its internal uncured resin solidification, increase its mechanical strength；
5) according to plan is actually rescued, medical cycle, repeat step 1 are planned) -4) the tooth jaw mould in each cycle is printed respectively
Type；
6) according to step 5) dentognathic model in each cycle of printing handled using thermoplastic shaping technology and accurate grinding, system
Into the stealthy facing of gear division correction series.
The present invention changes the method that conventional gypsum perfusion stamp prepares dentognathic model, improves the making effect of dentognathic model
Rate, by digital model data by 3D printing former, with the principle of increasing material manufacturing, not only increases the essence of model
Degree, also reduces cost of manufacture.The described dentognathic model made based on DLP3D printing technology can be used for orthodontist to band
The planning of the correction scheme of patient is rescued, while be also the instrument for making invisible orthotic device, by vacuum forming, direct hot pressing film
Piece produces invisible orthotic device.The present invention is otherwise varied using DLP (face exposure shaping) and traditional photocuring, traditional photocuring
It is point by point scanning curing molding, and face exposure is, by face curing molding, so significantly to improve shaping speed.And print
Material is that photosensitive resin is compared to traditional gypsum, and the weight of dentognathic model is greatly reduced, and is conducive to storage and transport.
Claims (4)
1. a kind of method for fast mfg of the stealthy facing of 3D printing gear division correction based on DLP techniques, it is characterised in that including with
Lower step：
1) importing digital model：Three dimensional point cloud " importing " reverse engineering software of dentognathic model to be designed is somebody's turn to do
Dentognathic model to be designed；
2) repairing model：Reparation operation is carried out to dentognathic model in reverse engineering software；
3) slicing treatment：By step 2) the dentognathic model data repaired are imported in the special-purpose software of 3D printer, set each layer
Thickness after carry out slicing treatment；
4) 3D printing is molded：By step 3) obtain slice of data import 3D printing former terminal, start printing, obtain tooth
Gnathode；
5) according to plan is actually rescued, medical cycle, repeat step 1 are planned) -4) dentognathic model in each cycle is printed respectively；
6) according to step 5) dentognathic model in each cycle of printing handled using thermoplastic shaping technology and accurate grinding, and tooth is made
The stealthy facing of section's correction series.
2. the method for fast mfg of the stealthy facing of the 3D printing gear division correction based on DLP techniques according to claim 1, its
It is characterised by：Step 3) every layer of thickness is set for 50 μm.
3. the method for fast mfg of the stealthy facing of the 3D printing gear division correction based on DLP techniques according to claim 1, its
It is characterised by：Described step 4) printed material using photosensitive resin be the acrylic resin of epoxy one.
4. the method for fast mfg of the stealthy facing of the 3D printing gear division correction based on DLP techniques according to claim 3, its
It is characterised by：The step 4) dentognathic model that obtains carries out cleaning the uncured resin in surface with alcohol, after cleaning is finished, general
Dentognathic model, which is placed under high-pressure sodium lamp, to expose, and makes its internal uncured resin solidification, increases mechanical strength.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710160071.1A CN107137149A (en) | 2017-03-17 | 2017-03-17 | The method for fast mfg of the stealthy facing of 3D printing gear division correction based on DLP techniques |
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| CN201710160071.1A CN107137149A (en) | 2017-03-17 | 2017-03-17 | The method for fast mfg of the stealthy facing of 3D printing gear division correction based on DLP techniques |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435056A (en) * | 2019-08-08 | 2019-11-12 | 爱迪特（秦皇岛）科技股份有限公司 | A kind of production method of invisible orthotic device |
| CN110435055A (en) * | 2019-08-08 | 2019-11-12 | 爱迪特（秦皇岛）科技股份有限公司 | A kind of production method of invisible orthotic device |
| CN112245047A (en) * | 2020-04-24 | 2021-01-22 | 四川大学 | Method for preparing oral functional jaw pad by combining hot-pressing film and 3D direct printing |
| CN114818383A (en) * | 2022-06-07 | 2022-07-29 | 奥世美医疗科技(江苏)有限公司 | Manufacturing method of 3D printing fixed orthodontic guide plate applying DLP technology |
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| US20070059659A1 (en) * | 2003-10-03 | 2007-03-15 | Joseph Da Cruz | Dental appliance |
| CN102415916A (en) * | 2011-07-29 | 2012-04-18 | 首都医科大学附属北京口腔医院 | Correction method for preventing excessive stress concentration of teeth roots and jaws in process of orthodontic treatment |
| CN105769356A (en) * | 2016-04-28 | 2016-07-20 | 华南理工大学 | Manufacturing method for photocuring additive material of personalized bracket-free invisible appliance |
| CN106109029A (en) * | 2016-07-21 | 2016-11-16 | 上海正雅齿科科技有限公司 | The processing method of stealthy facing |
| CN205736050U (en) * | 2016-06-27 | 2016-11-30 | 西安科技大学 | A kind of ultraviolet face exposure rapid molding device for preparing Three-dimensional Photoelastic model |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070059659A1 (en) * | 2003-10-03 | 2007-03-15 | Joseph Da Cruz | Dental appliance |
| CN102415916A (en) * | 2011-07-29 | 2012-04-18 | 首都医科大学附属北京口腔医院 | Correction method for preventing excessive stress concentration of teeth roots and jaws in process of orthodontic treatment |
| CN105769356A (en) * | 2016-04-28 | 2016-07-20 | 华南理工大学 | Manufacturing method for photocuring additive material of personalized bracket-free invisible appliance |
| CN205736050U (en) * | 2016-06-27 | 2016-11-30 | 西安科技大学 | A kind of ultraviolet face exposure rapid molding device for preparing Three-dimensional Photoelastic model |
| CN106109029A (en) * | 2016-07-21 | 2016-11-16 | 上海正雅齿科科技有限公司 | The processing method of stealthy facing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435056A (en) * | 2019-08-08 | 2019-11-12 | 爱迪特（秦皇岛）科技股份有限公司 | A kind of production method of invisible orthotic device |
| CN110435055A (en) * | 2019-08-08 | 2019-11-12 | 爱迪特（秦皇岛）科技股份有限公司 | A kind of production method of invisible orthotic device |
| CN110435055B (en) * | 2019-08-08 | 2021-04-06 | 爱迪特（秦皇岛）科技股份有限公司 | Manufacturing method of invisible orthodontic appliance |
| CN112245047A (en) * | 2020-04-24 | 2021-01-22 | 四川大学 | Method for preparing oral functional jaw pad by combining hot-pressing film and 3D direct printing |
| CN112245047B (en) * | 2020-04-24 | 2021-10-15 | 四川大学 | Method for preparing oral functional jaw pad by combining hot-pressing film and 3D direct printing |
| CN114818383A (en) * | 2022-06-07 | 2022-07-29 | 奥世美医疗科技(江苏)有限公司 | Manufacturing method of 3D printing fixed orthodontic guide plate applying DLP technology |
| CN114818383B (en) * | 2022-06-07 | 2024-02-02 | 奥世美医疗科技(江苏)有限公司 | Manufacturing method for 3D printing fixed orthodontic guide plate by DLP technology |
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Application publication date: 20170908 |
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