CN110751997A

CN110751997A - Production system and production method of shell-shaped tooth appliance

Info

Publication number: CN110751997A
Application number: CN201911220828.7A
Authority: CN
Inventors: 赵晓磊; 刘珊珊; 王秀娟; 姚峻峰
Original assignee: Shanghai Ya Fang Dental Polytron Technologies Inc
Current assignee: Shanghai Ya Fang Dental Polytron Technologies Inc
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-02-04

Abstract

The invention discloses a production system and a production method of a shell-shaped tooth appliance, wherein the rapid production system comprises the following components: the system comprises a case information acquisition module, a data processing center and a product preparation module; the case information acquisition module is used for acquiring case information of a patient; the data processing center is used for acquiring the case information from the case information acquisition module, identifying the file format type of the case information, and converting the case information of different file format types into unified file format information of a preset format type according to a data format conversion protocol; generating a tooth correction scheme according to the file format information of the preset format type; and the product preparation module is used for preparing the shell-shaped tooth appliance according to the data information to be prepared. Only the data processing software of the case information with the preset format type needs to be configured, the unified data format improves the data processing efficiency, is convenient for issuing the data information to be prepared to each manufacturer in a broadcast mode, and further improves the production efficiency of the shell-shaped tooth appliance.

Description

Production system and production method of shell-shaped tooth appliance

Technical Field

The invention relates to the technical field of tooth correction, in particular to production of a shell-shaped tooth corrector, and specifically relates to a production system and a production method of the shell-shaped tooth corrector.

Background

With the development of the times, the bracket-free digital invisible correction technology gradually replaces the traditional bracket correction, and the bracket-free invisible correction is realized by means of the current advanced 3D scanning technology, so that three-dimensional data entry can be carried out on the obtained dental jaw plaster model, and the three-dimensional reconstruction of the model can be carried out; the reconstructed digital model can be directly used for carrying out rotary observation and magnification reduction of each direction on a computer, and can be used for automatically measuring measurement items such as teeth, dental arches, jawbones and the like. On the basis of the research, a visual three-dimensional image processing and three-dimensional laser rapid forming technology is combined, a clinical correction design and a tooth moving mode and steps can be simulated, the visual three-dimensional dentognathic deformity is corrected, three-dimensional rapid laser forming is carried out on the three-dimensional dentognathic model at each correction stage, and then the shell-shaped tooth corrector at each stage is pressed on the formed resin model.

For the shell-shaped dental appliance manufacturer, the oral information of the patient is mostly received when the order is received, and the receiving mode includes two modes: a silicone rubber mold for receiving an impression in a patient's mouth; the other is to receive digitized intraoral information of the patient. For the silicon rubber model, when the shell-shaped tooth appliance is manufactured, a plaster model (male mold) is poured into the silicon rubber model (female mold), then the silicon rubber model is scanned into a digital model, and then the subsequent processing operation is carried out.

For digital oral information, because the previous operation of pouring plaster is not needed, the manufacturing process of the shell-shaped tooth appliance is more intelligent, so that the design of the shell-shaped tooth appliance by adopting the digital oral information becomes a trend, however, because the data formats obtained by oral scanning instruments of different brands are different, for a dental mouthpiece manufacturer, if the digital oral information of different data formats needs to be compatible, data processing software of corresponding formats needs to be configured according to different data formats, and then the data processing software of different formats is matched for corresponding data operation, the operation process is complex, the data processing time is increased, and if the digital oral information of a single data format is only received, the source channel of the oral data information of an enterprise is limited.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art, provides a production system and a production method of a shell-shaped tooth appliance, and solves the problems of complex operation process, high cost and low production efficiency caused by respectively configuring data processing software with corresponding formats for digital intraoral information with different formats.

The technical scheme provided by the invention is as follows:

a production system for a shell-shaped dental appliance, comprising:

the system comprises a case information acquisition module, a data processing center and a product preparation module; the case information acquisition module is used for acquiring case information of a patient, and the case information at least comprises intraoral dental model image information;

the data processing center is in communication connection with the case information acquisition module and comprises a data processing module and a correction scheme generation module;

the data processing module is used for acquiring the case information from the case information acquisition module, identifying the file format type of the case information, and converting the case information of different file format types into unified file format information of a preset format type according to a data format conversion protocol; the orthodontic scheme generating module generates a tooth orthodontic scheme according to the unified file format information of the preset format type; the dental appliance includes: a digitized dental model and/or a digitized shell-shaped dental appliance model; the product preparation module is in communication connection with the data processing center, receives the tooth correction scheme sent by the data processing center, and prepares the shell-shaped tooth correction device according to the tooth correction scheme.

Further preferably, the data processing module includes:

an intraoral data extraction unit that extracts the intraoral dental model image information from the case information;

the data format reading unit is used for reading the file format type of the image information of the intraoral dental model;

and the format conversion unit is used for converting the intraoral dental model image information of different file format types into the intraoral dental model image information of a unified preset format type according to a data format conversion protocol.

Further preferably, the data processing module further includes: the retrieval unit is used for searching a corresponding data format conversion protocol according to the file format type to be converted and a preset format type; the format conversion unit is used for converting the image information of the intraoral dental model to be converted into the image information of the intraoral dental model in a preset format type according to the searched data format conversion protocol.

Preferably, if the retrieval unit does not find the corresponding data format conversion protocol, the retrieval unit is further configured to find a first data format conversion protocol for converting the file format type to be converted into a third file format type, and find a second data format conversion protocol for converting the third file format type into a preset format type, and the format conversion unit is further configured to convert the intraoral dental model image information to be converted into intraoral dental model image information of the preset format type according to the found first data format conversion protocol and second data format conversion protocol.

Further preferably, the data processing module further includes: and the verifying unit is used for verifying whether the converted image information of the intraoral dental model is abnormal or not, sending reminding information if the converted image information of the intraoral dental model is abnormal, and sending the reminding information to the correction scheme generating module if the converted image information of the intraoral dental model is abnormal.

Further preferably, the file format type of the case information includes STL, OBJ, or PLY; the data format reading unit reads the suffix type of the case information to classify the file format type.

Further preferably, the correction scheme generation module includes: at least one appliance design module; the appliance design module includes: the data judgment unit is used for judging whether the converted intraoral dental model image meets a preset format type or not, and if not, sending abnormal import reminding information; the data denoising unit is used for denoising the acquired image information of the intraoral dental model if the preset format type is met, and restoring the acquired image information of the intraoral dental model into a dental model image which can meet the requirement of shell-shaped tooth appliance scheme design; the image cutting unit is used for cutting the restored dental model image to obtain the information of the digitized model of the single tooth in the initial state; the tooth arrangement unit is used for carrying out tooth arrangement treatment on the single tooth digital model in the initial state according to the target correction state; the scheme generation unit is used for acquiring correction parameters between the initial state and the target correction state of the teeth to generate a correction scheme; and the appliance design unit generates a matched digital dental model and/or a digital shell-shaped dental appliance model according to the appliance scheme.

Further preferably, the case information acquiring module includes: an intraoral data acquisition unit for acquiring intraoral dental model image information of a patient; the patient information acquisition unit is used for acquiring the correction auxiliary information of the patient; the correction auxiliary information comprises geographical position information of the patient.

Further preferably, the method further comprises the following steps: the production allocation center is respectively in communication connection with the data processing center and the product preparation module; the production allocation center acquires the current production rate of each product preparation module, and sends the tooth correction scheme to the product preparation modules according to the production rate condition to complete the processing of the shell-shaped tooth correction device; the number of the product preparation modules is multiple, and the product preparation modules are respectively arranged at different geographic positions.

Preferably, the production and deployment center is further configured to select the product preparation module meeting the position condition in a production system according to the geographic position information of the patient, and further complete the processing of the shell-shaped dental appliance according to the current output.

Further preferably, the method further comprises the following steps: the product distribution management module is respectively in communication connection with the data processing center and the product preparation module; the product distribution management module is used for carrying out distribution processing on the shell-shaped tooth appliance prepared by the product preparation module according to the geographical position information of the patient and receiving distribution information.

Further preferably, the case information acquiring module further includes:

the initial scheme generation unit is used for generating initial display information of an initial tooth correction scheme displayed for a user according to the dental model image information and the correction auxiliary information; the information feedback unit receives feedback display information of a user according to the preliminary display information; when the feedback display information is 'confirmation correction', the case information is sent to the data processing center; when the abnormal condition is confirmed, carrying out scheme adjustment; and the scheme adjusting unit is used for updating the preliminary display information according to the feedback display information fed back by the information feedback unit.

Further preferably, the product preparation module comprises: and 3D printing the digital shell-shaped tooth appliance model to prepare a shell-shaped tooth appliance, or 3D printing the digital dental jaw model, pressing a film and cutting to prepare the shell-shaped tooth appliance.

Further preferably, the method further comprises the following steps: a data storage module;

the data storage module is in communication connection with the data processing center and is used for storing the case information according to the corresponding file format type and storing the designed tooth correction scheme and the tooth correction scheme.

A production method of a shell-shaped dental appliance is applied to the production system of the shell-shaped dental appliance, and comprises the following steps: acquiring case information of a patient, wherein the case information at least comprises intraoral dental model image information; reading the case information and identifying the file format type of the case information; converting the case information of different file format types into unified file format information of a preset format type according to a data format conversion protocol; generating a tooth correction scheme according to file format information of a preset format type; the dental appliance includes: a digitized dental model and/or a digitized shell-shaped dental appliance model; and sending the tooth correction scheme to a corresponding product preparation module, so that the product preparation module prepares the shell-shaped tooth corrector according to the tooth correction scheme.

The production system and the production method of the shell-shaped tooth appliance provided by the invention can bring the following beneficial effects:

the method comprises the steps of converting case information of different file format types into unified file format information of a preset format type through a data processing center according to a data format conversion protocol, generating a tooth correcting scheme according to the file format information of the preset format type, sending a digital shell-shaped tooth correcting device model/digital tooth jaw model corresponding to the correcting scheme to a product preparation module, and completing preparation of the shell-shaped tooth correcting device. For manufacturers of shell-shaped tooth correcting devices, only data processing software of case information in preset format types needs to be configured, the unified data format not only improves the data processing efficiency, but also reduces the software investment cost, meanwhile, the manufacturers can butt joint the case information in different formats through the data processing center, and compared with the butt joint of the case information in a single format, the source channel of the manufacturer for the data information in the mouth is further expanded; the unified data format is convenient for broadcasting to each manufacturer to issue the digital shell tooth appliance model/digital dental model of the shell tooth appliance, and further improves the production efficiency of the shell tooth appliance.

Further, a product preparation module meeting the position condition is selected by combining the geographical position information of the patient, the digital shell tooth appliance model/digital jaw model of the shell tooth appliance to be prepared is distributed to the product preparation module, the preparation of the shell tooth appliance is completed, and the prepared shell tooth appliance is delivered according to the geographical position of the patient, so that the delivery time of the shell tooth appliance to the patient is shortened.

Furthermore, the image information of the intraoral dental model with different data formats is formatted uniformly, so that the scale production of the shell-shaped tooth appliance can be realized.

Drawings

FIG. 1 is a schematic block diagram of a system for producing shell-shaped dental appliances according to one embodiment;

FIG. 2 is a functional block diagram of an appliance design module;

FIG. 3 is a flowchart of a method of producing the shell-shaped dental appliance according to the second embodiment.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

When the shell-shaped tooth appliance is prepared based on the digitized intraoral information, because the data formats of the digitized intraoral information acquired by intraoral scanning instruments of different brands are different, data processing software and operating equipment with different formats are required to be configured for the digitized intraoral information with different data formats in the actual operation process.

The first embodiment is as follows:

the present embodiment provides a preparation system of a shell-shaped dental appliance, a functional block diagram of which is shown in fig. 1, and the preparation system includes a case information acquisition module 1, a data processing center 2 and a product preparation module 3. The case information acquisition module 1 is used for acquiring case information of a patient, wherein the case information at least comprises intraoral dental model image information, and the intraoral dental model image information is digital intraoral information; the data processing center 2 is in communication connection with the case information acquisition module 1, the data processing center 2 comprises a data processing module 21 and a correction scheme generation module 22, wherein the data processing module 21 is used for acquiring the case information from the case information acquisition module, identifying the file format type of the case information, and converting the case information of different file format types into the uniform file format information of a preset format type according to a data format conversion protocol; the orthodontic scheme generating module 22 is used for generating a tooth orthodontic scheme according to the file format information of the preset format type; the product preparation module 3 is in communication connection with the data processing center 2, receives the digital shell-shaped tooth appliance model/digital dental model sent by the data processing center 2, and prepares a shell-shaped tooth appliance according to the digital shell-shaped tooth appliance model/digital dental model, specifically, prepares a shell-shaped tooth appliance according to the digital shell-shaped tooth appliance model/digital dental model.

Based on the technical scheme, the data processing module 21 converts the case information of different file format types into the unified file format information of the preset format type according to the data format conversion protocol, and the orthodontic scheme generating module 22 generates the dental orthodontic scheme according to the file format information of the preset format type; the correction scheme generation module 22 only needs to be configured with data processing software matched with the preset format type, the unified data format not only improves the data processing efficiency, but also reduces the software investment and the later maintenance cost, when a manufacturer establishes internet of things communication with the data processing center 2, the unified data format is convenient for broadcasting to issue digital shell tooth corrector models/digital tooth jaw models of shell tooth correctors to various manufacturers, the production efficiency of the shell tooth corrector is further improved, and the source channel of single intraoral data information of the manufacturer is expanded.

The technical solution provided by this embodiment is described in detail below.

The case information acquiring module 1 includes an intraoral data acquiring unit 11, and the intraoral data acquiring unit 11 is used to acquire intraoral dental model image information of a patient.

The intraoral data acquisition unit 11 of the present embodiment can be implemented in two ways:

in one way, the intraoral data acquisition unit 11 may be an intraoral scanner, which may be a household intraoral scanner, or a special intraoral scanner for hospitals, oral clinics, etc.; among them, the scanning systems of intraoral scanners provided by different manufacturers are different, for example, the scanning systems include an iTero system, a True Definition system, a PlanScan system, a CS3500 system, a TRIOS system, a CEREC ACOmniCam system, a lavac.o.s system, and the like, and the scanning systems are mainly divided into two systems, namely, a closed system and an open system, wherein the closed system provides all CAD/CAM programs including information acquisition, digital design, and repair of a missing part of a scanned image, and the like, and these must be completed by a whole set of systems. While open systems allow other systems to acquire the information they provide and repair the missing portions of the scanned image they provide.

In another mode, the intraoral data acquisition unit 11 may also be a self-service intraoral scanning terminal, which may be a smart phone, an IPAD, or the like, and the patient self-shoots an intraoral dental model image by a camera provided in the self-service intraoral scanning terminal.

The intraoral data acquisition unit 11 is internally provided with corresponding functional modules, such as a positioning module, a monitoring module, a shooting module and an image integration module, wherein the positioning module is used for positioning the initial position of intraoral scanning, the monitoring module is used for monitoring whether intraoral scanning is completed or not, the shooting module is used for shooting intraoral images of patients, the image integration module is used for automatically repairing partial incomplete intraoral scanning images, and when one intraoral scanning is unsuccessful, secondary scanning of the patients is avoided based on an automatic repairing mode.

The case information acquiring module 1 of the present embodiment further includes a patient information acquiring unit 12, an initial plan generating unit 13, an information feedback unit 14, and a plan adjusting unit 15.

The patient information obtaining unit 12 is configured to obtain correction auxiliary information of the patient, where the correction auxiliary information includes geographic position information of the patient and demand information of the patient, and the demand information may include demand information of tooth extraction and demand information of correction willingness of the patient.

The initial scheme generating unit 13 is configured to generate initial display information of an initial tooth correction scheme displayed to a user according to the dental model image information and the requirement information of the patient; for example, when the patient proposes a demand for tooth extraction, the initial plan generating unit 13 may display the intraoral/facial changes after tooth extraction and the preliminary tooth correction plan for tooth extraction to the patient.

The patient can have a visual feeling on the pre-correction treatment effect through preliminary display information, and in order to increase the experience feeling of the patient, the initial scheme generation unit 13 can also enable the patient to see intraoral changes/facial changes before and after correction, facial changes before and after tooth extraction and the like by combining with an AR technology (augmented reality technology).

The information feedback unit 14 is configured to receive feedback display information of the user according to the preliminary display information; when the feedback display information is 'confirmation correction', the case information is sent to the data processing center 2; when the abnormal condition is confirmed, the scheme adjustment is carried out. For example, if the patient is satisfied with the preliminary display information, the patient may feed back "confirmation correction" information, and if the patient has a new requirement through the preliminary display information, the new requirement may be provided through the information feedback unit 14, or the preliminary tooth correction scheme may be cancelled.

The scheme adjusting unit 15 is configured to update the preliminary display information according to the feedback display information fed back by the information feedback unit 14. Further, the scheme adjusting unit 15 can also be in remote interaction with the doctor end, and the scheme adjusting unit 15 updates and adjusts the preliminary tooth correction scheme through doctor end telemedicine, that is, the scheme adjusting unit 15 can optimize the preliminary tooth correction scheme in combination with the intraoral information of the patient, the appeal of the patient and the suggestion of the doctor end.

The data processing module 21 provides a corresponding data interface for each acquisition mode of the intraoral dental model image, for example, the data processing module 21 is in communication connection with a household intraoral scanner, a special intraoral scanner, a smart phone, an IPAD and the like through APP software, and a scanning system combined with the intraoral scanner has a plurality of types and different operating systems corresponding to the smart phone and the IPAD, so that the data processing module 21 acquires intraoral dental model image information in different data formats through corresponding APP software or other application programs.

The data processing module 21 includes an intra-oral data extraction unit 211, a data format reading unit 212, and a format conversion unit 213.

Specifically, the intraoral data extraction unit 211 extracts intraoral dental model image information uploaded by each intraoral scanner and self-service terminal through each data interface; the data format reading unit 212 is configured to read a file format type of the intraoral dental model image information, specifically, a suffix type of the read case information, and perform file format type classification on the read intraoral dental model image information.

The file format types of the case information comprise STL, OBJ and PLY; of course, the file format types of the case information also include the formats of JAW, BMP, TIFF, Flash, PNG, GIF, and the like.

The format conversion unit 213 is configured to convert the intraoral dental model image information of different file format types into intraoral dental model image information of a unified preset format type according to a data format conversion protocol.

The data format conversion protocol refers to converting one data format into another data format according to a conversion protocol, and therefore, the content of one data format conversion protocol includes a source data format, a destination data format, and a conversion relationship of the source data format into the destination data format.

Further, the data processing module 21 further includes a retrieving unit 214, the retrieving unit 214 is configured to search a corresponding data format conversion protocol according to the file format type to be converted and the preset format type, and the format conversion unit 213 is configured to convert the intra-oral dental model image information to be converted into the intra-oral dental model image information of the preset format type according to the searched data format conversion protocol.

Taking the format type to be converted as the OBJ format and the preset format type as the STL format as an example, the retrieving unit 214 searches for a data format conversion protocol including the OBJ format and the STL format, further searches for a data format conversion protocol whose source data format is the OBJ format and whose destination data format is the STL format among the searched data format conversion protocols, and sends the finally searched data format conversion protocol to the format converting unit 213.

In order to expand the compatibility of different data formats, further, if the retrieving unit 214 does not find a corresponding data format conversion protocol, further, the retrieving unit 214 is further configured to find a first data format conversion protocol for converting a file format type to be converted into a third file format type, and find a second data format conversion protocol for converting the third file format type into a preset format type, and the format converting unit 213 is further configured to convert the intraoral dental model information to be converted into the intraoral dental model image information of the preset format type according to the found first data format conversion protocol and the found second data format conversion protocol.

That is, the file format type to be converted is converted into the preset format type through a plurality of data format conversion protocols.

Similarly, taking the format type to be converted as the OBJ format and the preset format type as the STL format as an example, if the retrieving unit 214 does not find the data format conversion protocol including the source data format as the OBJ format and the destination data format as the STL format, the retrieving unit 214 searches all the data format conversion protocols including the source data format as the OBJ format to form a first data format conversion protocol set, searches all the data format conversion protocols including the destination data format as the STL format to form a second data format conversion protocol set, and then combines the first data format conversion protocol set and the second data format conversion protocol set to respectively find the data format conversion protocols including the same third file format type, that is, in the first data format protocol set, the data format conversion protocol converts the OBJ format into the third file format type, in the second data format conversion protocol set, the data format conversion protocol converts the third file format type into the STL format and finally converts the OBJ format into the STL format.

If the intra-oral dental model image information of the format to be converted cannot be converted into the intra-oral dental model image information of the preset format type through the two data format conversion protocols, the intra-oral dental model image information of the format to be converted can be converted into the intra-oral dental model image information of the preset format type through three, four and other data format conversion protocols, and the purpose of compatibility is achieved through the matching use of different data format conversion protocols.

The data format to be converted is converted into a preset format type through different data format conversion protocols, so as to avoid the problem of data packet loss in the conversion process, further, the data processing module 21 further comprises a verification unit 215, the verification unit 215 verifies the converted image information of the intraoral dental model, and judges whether the converted intraoral dental model image is abnormal or not, if so, reminding information is sent, otherwise, the reminding information is sent to the correction scheme generating module 22.

Taking the preset format type as the STL format as an example, when data in other formats is converted into data in the STL format, the following errors may occur:

1) if the normal vector is wrong, the normal vector of a plane formed by three vertexes of the triangle is inconsistent with the normal vector given by the STL, or the arrangement of the three vertexes of the triangle and the given normal vector do not accord with the right-hand rule;

2) the gap is formed, the sides of the triangle do not have corresponding adjacent sides, and the surface of the object is not closed due to the loss of the triangle;

3) the adjacent surfaces are wrong, and the connecting sides of the adjacent triangles have the same direction;

4) the vertex is wrong, and the vertex of the triangle is on one side of a certain triangle;

5) an overlapping surface, which may be caused by a rounding error when the surface of the object is split;

6) and (4) isolated planes.

The verification unit 215 performs the above error verification on the converted STL format intraoral dental model image, for example, the verification unit 215 performs the above error verification by adopting five structural arrays: and establishing a topological relation of the surface of the object for STL data through the five structure arrays, and carrying out error detection on the converted STL-format image of the oral dental model.

Specifically, the method comprises the following steps: the verification unit 215 reads the converted STL format file; establishing the internal relation of common edges and common vertexes among the triangular patches for all the triangular patches in the STL format file, and establishing the topological relation of the edges and the vertexes among the triangular patches; wherein, a half-edge structure is adopted to represent the topological relation between the triangular patches; according to the characteristics of the half-edge structure, the half-edge inspection is taken as the basis of error inspection, and the inspection standards are as follows: one half is not provided with the other half which has the same end point and opposite direction, the half is an error half, the two end points of the half are error end points, and the triangular patch where the half is located is an error patch; and further judging that the converted STL format file is abnormal.

Further, in case of successful format conversion, the checking unit 215 may further extract the outer contour of the converted STL format image, match the outer contour with the outer contour of the original format image, and if the matching is unsuccessful, determine that the converted STL format image is mutated, and send an image mutation reminding message, so as to prevent the shell-shaped dental appliance from being designed according to the original oral cavity image of the patient.

Since the intraoral dental model images with different data formats are converted into the preset format, the format of the correction plan generation module 22 also corresponds to the preset format, for example, the intraoral dental model images with different data formats are uniformly converted into the STL format, and then the correction plan generation module 22 is also configured into the STL format.

The orthodontic scheme generating module 22 includes at least one appliance designing module 221, and the appliance designing module 221 generates the dental orthodontic scheme according to the file format information of the preset format type. The functional block diagram of the appliance design module 221 is shown in fig. 2, and includes a data determination unit 2211, a data denoising unit 2212, an image segmentation unit 2213, a tooth arrangement unit 2214, a scheme generation unit 2215, and an appliance design unit 2216.

The data determining unit 2211 is configured to determine whether the intra-oral dental model map converted by the data format conversion protocol satisfies a preset format type, and if not, send a prompt message indicating that an anomaly is imported. For example, when the preset format is STL format, and the data determining unit 2211 determines that the file format of the intraoral dental model image is non-STL format, a prompt that the file format is wrong is sent.

If the preset format type is met, the data denoising unit 2212 is used for denoising the acquired intraoral dental model image information and restoring the intraoral dental model image information into a dental model image which can meet the requirements of shell-shaped tooth appliance scheme design. For example, the scanned dental model image is repaired where the connection is incomplete.

The image cutting unit 2213 is configured to cut the restored dental model image to obtain digitized model information of a single tooth in an initial state. Wherein, the process of cutting is to cut apart into single tooth with patient's tooth in the tooth jaw model image, and this tooth segmentation technique is the tooth and rescues the technique that the in-process was used, and this embodiment is not repeated.

The tooth arrangement unit 2214 is configured to perform tooth arrangement processing on the single tooth digitized model in the initial state according to the target correction state. That is, according to the orthodontic rule, the teeth of the patient are automatically aligned, and this tooth aligning technique is also a technique commonly used in the orthodontic process, and is not described in detail in this embodiment.

The scheme generating unit 2215 is configured to obtain a correction parameter between an initial state and a target correction state of a tooth, and generate a correction scheme matched with a file format type according to the correction parameter. A series of intermediate correction processes can be generated through automatic alignment of teeth, and each intermediate correction process is correspondingly designed with one set of correction scheme.

The appliance design unit 2216 is used to generate a matched digitized dental model and/or a digitized shell-like dental appliance model according to the appliance.

The rapid production system provided by the embodiment further comprises a production allocation center 4, wherein the production allocation center 4 is in communication connection with the data processing center 2 and the product preparation modules 3 respectively, the production allocation center 4 obtains the current production rate of each product preparation module 3, and sends the digital dental model and/or the digital shell-shaped dental appliance model to the product preparation modules 3 according to the production rate condition, so that the shell-shaped dental appliance is processed.

Further, in order to realize the mass production of the shell-shaped dental appliance, the number of the product preparation modules 3 is a plurality, wherein the product preparation modules 3 are respectively arranged at different geographical positions, for example, the product preparation modules 3 can be respectively arranged at different provinces, and the product preparation modules 3 can be respectively arranged at different urban areas of each province.

In combination with the geographic position information of the patient and the placement position information of the product preparation module 3, the production deployment center 4 of this embodiment is further configured to select the product preparation module 3 meeting the position condition in the production system according to the geographic position information of the patient, and further send the digitized dentognathic model and/or the digitized shell-shaped dental appliance model of the shell-shaped dental appliance to the product preparation module 3 meeting the position condition according to the current output of the product preparation module, so as to complete the processing of the shell-shaped dental appliance.

The production allocation center 4 can coordinate and control the working state of each product preparation module 3, so that the problem that the workload of one part of the product preparation modules 3 is large and the other part of the product preparation modules 3 are in an idle state is avoided.

This example provides two solutions for the product preparation module 3 to prepare shell-shaped dental appliances:

one scheme is as follows: the product preparation module 3 is used for preparing the shell-shaped tooth appliance by adopting a 3D printing digital shell-shaped tooth appliance model; for example, the product preparation module 3 receives the digitized shell-shaped dental appliance model, generates the shell-shaped dental appliance by 3D printing, and then cleans, sterilizes, sorts, packages, and sends the shell-shaped dental appliance to the patient.

The other scheme is as follows: the product preparation module 3 directly adopts 3D to print a digital dental model, press a film and cut to prepare a shell-shaped tooth appliance; for example, the product preparation module 3 receives the digital dental model, generates the dental model by 3D printing, cleans, cures, presses, cuts, and strips the dental model to generate the shell-shaped dental appliance, and then cleans, sterilizes, sorts, packages, and sends the shell-shaped dental appliance to the patient.

In order to realize that the prepared shell-shaped tooth appliance is rapidly delivered to a patient, further, the rapid production system provided by the embodiment further comprises a product delivery management module 5, which is in communication connection with the data processing center 2 and the product preparation module 3, respectively, and is used for delivering the shell-shaped tooth appliance prepared by the product preparation module 3 according to the geographic position information of the patient and receiving delivery information.

Further, the rapid production system provided by this embodiment further includes a data storage module 6, and the data storage module 6 is in communication connection with the data processing center 2, and is used for storing case information in a classified manner according to file format types, and storing the designed tooth correction scheme and the data to be prepared. The data storage module 6 establishes a corresponding data information base for the stored data, performs data expansion for the self-design of automatic incisor and automatic tooth arrangement, and also performs classification and integration for the case types of patients.

A specific application example is described below, in which the preset format is an STL format.

Patient A, patient B and patient C come from different provinces respectively, and the APP software of oral cavity correction is loaded in patient A's the smart mobile phone, and patient B carries out the tooth correction to the clinic, and patient C carries out the tooth correction to the department of stomatology in hospital.

A patient A utilizes a camera of a smart phone to shoot an intraoral dental image (image in GIF format) by self, and uploads the intraoral dental image in GIF format to a data processing center 2 through APP software;

patient B performs intraoral scanning through an Aoralscan dental intraoral 3D scanner provided by a clinic, the data output format of the 3D scanner is an OBJ format, and the clinic uploads an intraoral dental image in the OBJ format to the data processing center 2 through a corresponding data interface;

a patient C carries out intraoral scanning through a 3shape intraoral scanner provided by the hospital, the data output format of the 3shape intraoral scanner is STL format, and the hospital uploads the STL format intraoral dental image to the data processing center 2 through a corresponding data interface;

the data format reading unit 212 of the data processing center 2 reads the image in the GIF format, the image in the OBJ format, and the image in the STL format, classifies the image in the GIF format into the GIF format image library according to the suffix type, classifies the image in the OBJ format into the OBJ format image library, classifies the image in the STL format into the STL format image library, and the format conversion unit 213 directly reads the image in the corresponding format image library, wherein the image in the STL format image library is directly read without performing format conversion, and the image in the GIF format image library and the image in the OBJ format image library are converted into the STL format image according to the corresponding data format conversion protocol.

Therefore, the format conversion unit 213 directly converts the oral dental image in GIF format uploaded by the patient a into the image in STL format and the oral dental image in OBJ format of the patient B into the image in STL format.

The appliance design module 221 performs tooth correction design on the STL-format oral dental image of the patient a, the STL-format oral dental image of the patient C, and the STL-format oral dental image of the patient B, and generates a corresponding digital shell-shaped tooth correction appliance model/digital dental model after the tooth correction design corresponding to the patient a, the patient B, and the patient C is completed.

The production and deployment center 4 obtains the geographic location information of the patient a, the patient B and the patient C, and selects the product preparation module 3 satisfying the location condition based on the geographic location information, preferably, the production and deployment center 4 sends the digitized shell-shaped dental appliance model/digitized jaw model of the patient a to the product preparation module 3 of the province of the patient a, sends the digitized shell-shaped dental appliance model/digitized jaw model of the patient B to the product preparation module 3 of the province of the patient B, sends the digitized shell-shaped dental appliance model/digitized jaw model of the patient C to the product preparation module 3 of the province of the patient C, for example, if the product preparation module 3 is not configured in the province of the patient a, the production and allocation center 4 sends the digital shell-shaped tooth appliance model/digital jaw model of the patient A to the product preparation module 3 of the province close to the patient A;

after the preparation of the shell-shaped dental appliances for patient a, patient B and patient C is completed, the product delivery management module 5 performs delivery processing according to the geographical position information of the patients.

In the process of preparing the shell-shaped dental appliance by the production system for the shell-shaped dental appliance provided by this embodiment, the data processing module 21 converts the case information of different file format types into the file format information of the unified preset format type according to the data format conversion protocol, and the appliance scheme generating module 22 generates the dental appliance scheme according to the file format information of the preset format type; the correction scheme generation module 22 only needs to be configured with data processing software matched with the preset format type, the unified data format not only improves the data processing efficiency, but also reduces the software investment and the later maintenance cost, when a manufacturer establishes internet of things communication with the data processing center 2, the unified data format is convenient for broadcasting to issue digital shell tooth corrector models/digital tooth jaw models of shell tooth correctors to various manufacturers, the production efficiency of the shell tooth corrector is further improved, and the source channel of single intraoral data information of the manufacturer is expanded.

The production system for the shell-shaped tooth appliance provided by the embodiment further selects a product preparation module meeting the position condition by combining with the geographic position information of the patient, distributes the digital shell-shaped tooth appliance model/the digital jaw model to the product preparation module, completes the preparation of the shell-shaped tooth appliance, and delivers the prepared shell-shaped tooth appliance according to the geographic position of the patient, so that the delivery time of the shell-shaped tooth appliance to the patient is shortened.

Example two:

based on the first embodiment, the present embodiment provides a method for producing a shell-shaped dental appliance, and the flowchart is shown in fig. 3, which specifically includes the following steps.

S100: case information of a patient is acquired.

The case information includes at least intraoral dental model image information, which can be acquired in the following two ways.

One way is to obtain the data information of the intraoral image of the patient based on an intraoral scanner, which may be a household intraoral scanner or a special intraoral scanner for hospitals, oral clinics, etc.; among them, the scanning systems of intraoral scanners provided by different manufacturers are different, for example, the scanning systems include an iTero system, a True Definition system, a PlanScan system, a CS3500 system, a TRIOS system, a CEREC ACOmniCam system, a lavac.o.s system, and the like, and the scanning systems are mainly divided into two systems, namely, a closed system and an open system, wherein the closed system provides all CAD/CAM programs including information acquisition, digital design, and repair of a missing part of a scanned image, and the like, and these must be completed by a whole set of systems. While open systems allow other systems to acquire the information they provide and repair the missing portions of the scanned image they provide.

The other mode is that the intraoral dental model image of the patient is obtained through a self-service intraoral scanning terminal, the self-service intraoral scanning terminal can be a smart phone, an IPAD (internet protocol ad) and the like, and the intraoral dental model image is shot by the patient through a camera carried by the self-service intraoral scanning terminal.

S200: the case information is read and the file format type of the case information is identified.

The method specifically comprises the following steps: reading a suffix type of the case information, and identifying a file format type of the intraoral dental model image information in the case information according to the suffix type of the case information. The file format types of the case information comprise STL, OBJ and PLY; of course, the file format types of the case information also include the formats of JAW, BMP, TIFF, Flash, PNG, GIF, and the like.

S300: and converting the case information of different file format types into unified file format information of a preset format type according to a data format conversion protocol.

The method specifically comprises the following steps: searching a corresponding data format conversion protocol according to the file format type to be converted and a preset format type; and converting the image information of the intraoral dental model to be converted into the image information of the intraoral dental model in a preset format type according to the searched data format conversion protocol.

Taking the format type to be converted as an OBJ format and the preset format type as an STL format as an example, a data format conversion protocol including the OBJ format and the STL format is searched first, a data format conversion protocol in which a source data format is the OBJ format and a target data format is the STL format is further searched in the searched data format conversion protocol, and finally, the OBJ format is converted into the STL format according to the searched data format conversion protocol.

In order to expand the compatibility of different file format types, if the corresponding data format conversion protocol is not found, the step further includes:

searching a first data format conversion protocol for converting the file format type to be converted into a third file format type;

searching a second data format conversion protocol for converting the third file format type into a preset format type; and converting the intraoral dental model image information to be converted into intraoral dental model image information of a preset format type according to the searched first data format conversion protocol and second data format conversion protocol.

Similarly, taking the format type to be converted as an OBJ format and the preset format type as an STL format as an example, if a data format conversion protocol including the source data format as an OBJ format and the target data format as an STL format is not found, continuously searching all data format conversion protocols including the source data format as an OBJ format to form a first data format conversion protocol set, searching all data format conversion protocols including the target data format as an STL format to form a second data format conversion protocol set, and respectively searching data format conversion protocols including the same third file format type by combining the first data format conversion protocol set and the second data format conversion protocol set, that is, in the first data format protocol set, the data format conversion protocol converts the OBJ format into the third file format type, in the second data format conversion protocol set, the data format conversion protocol converts the third file format type into the STL format and finally converts the OBJ format into the STL format.

S400: and generating a tooth correcting scheme according to the file format information of the preset format type.

The method specifically comprises the following steps:

judging whether the file format type of the intraoral dental model image converted by the data format conversion protocol meets a preset format type, and if not, sending abnormal import reminding information; for example, when the preset format is the STL format, and when the file format of the intraoral dental model image is judged to be the non-STL format, a prompt that the file format is wrong is sent.

If the preset format type is met, denoising the acquired image information of the intraoral dental model, and restoring the image information into a dental model image which can meet the requirement of shell-shaped tooth appliance scheme design; for example, the scanned dental model image is repaired where the connection is incomplete.

Cutting the restored dental model image to obtain single tooth digital model information in an initial state; wherein, the process of cutting is to cut apart into single tooth with patient's tooth in the tooth jaw model image, and this tooth segmentation technique is the tooth and rescues the technique that the in-process was used, and this embodiment is not repeated.

Carrying out tooth arrangement treatment on the single tooth digitalized model in the initial state according to the target correction state; that is, according to the orthodontic rule, the teeth of the patient are automatically aligned, and this tooth aligning technique is also a technique commonly used in the orthodontic process, and is not described in detail in this embodiment.

Acquiring correction parameters between the initial state and the target correction state of the teeth, and generating a correction scheme matched with the file format type according to the correction parameters; a series of intermediate correction processes can be generated through automatic alignment of teeth, and each intermediate correction process is correspondingly designed with one set of correction scheme. And generating a matched digital dental model and/or a digital shell-shaped dental appliance model according to the appliance scheme.

If the preset format type is satisfied, the method further comprises the following steps: and (4) checking the converted image information of the intraoral dental model, judging whether the converted intraoral dental model image is abnormal or not, and sending reminding information if the converted intraoral dental model image is abnormal.

6) and (4) isolated planes.

The verification step requires the above error checking of the converted STL format intraoral dental model image, for example, by using five structural arrays: and establishing a topological relation of the surface of the object for STL data through the five structure arrays, and carrying out error detection on the converted STL-format image of the oral dental model.

Specifically, the method comprises the following steps: reading the converted STL format file; establishing the internal relation of common edges and common vertexes among the triangular patches for all the triangular patches in the STL format file, and establishing the topological relation of the edges and the vertexes among the triangular patches; wherein, a half-edge structure is adopted to represent the topological relation between the triangular patches; according to the characteristics of the half-edge structure, the half-edge inspection is taken as the basis of error inspection, and the inspection standards are as follows: one half is not provided with the other half which has the same end point and opposite direction, the half is an error half, the two end points of the half are error end points, and the triangular patch where the half is located is an error patch; and further judging that the converted STL format file is abnormal.

Further, under the condition that the format conversion is successful, extracting the outer contour of the converted STL format image, matching the outer contour with the outer contour of the original format image, if the matching is unsuccessful, judging that the converted STL format image has variation, and sending image variation reminding information to prevent the shell-shaped tooth correcting device from being designed according to the original oral cavity image of the patient.

S500: and sending the digital shell-shaped tooth appliance model/the digital jaw model to a corresponding product preparation module, so that the product preparation module can prepare the shell-shaped tooth appliance according to the tooth appliance scheme.

The product preparation module can be used for preparing a shell-shaped tooth appliance by adopting 3D printing of a digital dental model, film pressing and cutting; for example, the product preparation module 3 receives the digital dental model, generates the dental model by 3D printing, cleans, cures, presses, cuts, and strips the dental model to generate the shell-shaped dental appliance, and then cleans, sterilizes, sorts, packages, and sends the shell-shaped dental appliance to the patient. The product preparation module can also adopt 3D to print the digital shell-shaped tooth appliance model to prepare a shell-shaped tooth appliance; for example, the product preparation module 3 receives the digitized shell-shaped dental appliance model, generates the shell-shaped dental appliance by 3D printing, and then cleans, sterilizes, sorts, packages, and sends the shell-shaped dental appliance to the patient.

In the process of preparing the shell-shaped dental appliance in the steps S100 to S500, converting case information of different file format types into unified file format information of a preset format type through a data format conversion protocol, and generating a dental appliance scheme according to the file format information of the preset format type; therefore, only data processing software matched with the preset format type is needed to be configured, the unified data format not only improves the data processing efficiency, but also reduces software investment and later-stage software maintenance cost, the unified data format is convenient for broadcasting to send the digital shell-shaped tooth appliance model/digital dental model of the shell-shaped tooth appliance to each manufacturer, the production efficiency of the shell-shaped tooth appliance is further improved, and the source channel of single intraoral data information of the manufacturer is expanded.

Further, step S100 includes acquiring auxiliary orthopedic information of the patient, where the auxiliary orthopedic information includes material parameter information and geographic location information of the patient;

further, step S500 includes selecting a product preparation module satisfying the position condition according to the geographic position information of the patient, and distributing the digital shell-shaped dental appliance model/the digital dental model to the product preparation module.

The product preparation module meeting the position condition is selected by combining the geographical position information of the patient, the digital shell tooth appliance model/digital jaw model of the shell tooth appliance to be prepared is distributed to the product preparation module, the preparation of the shell tooth appliance is completed, correspondingly, the prepared shell tooth appliance is distributed according to the geographical position of the patient, and therefore the distribution time of the shell tooth appliance to the patient is shortened.

Further, in step S500, the method further includes obtaining a current output of each product preparation module, and sending the digital shell-shaped dental appliance model/the digital dental model to the product preparation module satisfying the position condition according to the output condition. By coordinating the work between the various product preparation modules, the production efficiency of the shell-like dental appliance is maximized.

Further, after step S400 and before step S500, the method further comprises the steps of:

generating preliminary display information of a preliminary tooth correction scheme displayed for a user according to the dental model image information and the correction auxiliary information;

receiving feedback display information of a user according to the preliminary display information; when the feedback display information is 'confirmation correction', the case information is sent, and in step S500, the 'confirmation correction' fed back by the user is combined, and then the digital shell-shaped dental appliance model/the digital dental model corresponding to the case information is distributed to the product preparation module; and when the abnormal condition is confirmed, adjusting the preliminary tooth correction scheme and updating the preliminary display information.

Before the shell-shaped tooth appliance is prepared, the prepared shell-shaped tooth appliance can fully combine the correction will of a patient through interaction with the patient, so that the prepared shell-shaped tooth appliance can meet the individual requirements of the patient.

For the specific execution process of this embodiment, please refer to the implementation process of each module in the first embodiment, which is not described in detail in this embodiment.

A patient A utilizes a camera of a smart phone to shoot an intraoral dental image (image in GIF format) by self, and uploads the intraoral dental image in GIF format through APP software;

patient B carries out intraoral scanning through an Aoralscan dental intraoral 3D scanner provided by a clinic, the data output format of the 3D scanner is in an OBJ format, and the clinic uploads an intraoral dental image in the OBJ format through a corresponding data interface;

a patient C carries out intraoral scanning through a 3shape intraoral scanner provided by the hospital, the data output format of the 3shape intraoral scanner is STL format, and the hospital uploads the STL format intraoral dental jaw images through a corresponding data interface;

reading a GIF format image, an OBJ format image and an STL format image, classifying the GIF format image into a GIF format image library according to a suffix type, classifying the OBJ format image into an OBJ format image library, classifying the STL format image into an STL format image library, and then directly reading the image in the corresponding format image library, wherein format conversion is not required for the image in the STL format image library, and the image in the GIF format image library and the image in the OBJ format image library are converted into the STL format image according to a corresponding data format conversion protocol.

Therefore, the oral dental image in GIF format uploaded by the patient A needs to be converted into the image in STL format, and the oral dental image in OBJ format uploaded by the patient B needs to be converted into the image in STL format.

And then, carrying out tooth correction design on the STL-format oral dental image of the patient A, the STL-format oral dental image of the patient C and the STL-format oral dental image of the patient B after conversion, and generating a corresponding digital shell-shaped tooth correction device model/digital dental model after the tooth correction design corresponding to the patient A, the patient B and the patient C is completed.

Acquiring the geographic position information of a patient A, a patient B and a patient C, selecting a product preparation module meeting the position condition based on the geographic position information, preferably, sending the digital shell-shaped dental appliance model/digital dental model of the patient A to the product preparation module of the province of the patient A, sending the digital shell-shaped dental appliance model/digital dental model of the patient B to the product preparation module of the province of the patient B, sending the digital shell-shaped dental appliance model/digital dental model of the patient C to the product preparation module of the province of the patient C, for example, if the province of the patient A is not provided with the product preparation module, the production sends the digitized shell-shaped tooth appliance model/the digitized jaw model of the patient A to a product preparation module which is close to the province of the patient A; and after the shell-shaped tooth appliances of the patient A, the patient B and the patient C are prepared, carrying out distribution treatment according to the geographical position information of the patients.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A production system for a shell-shaped dental appliance, comprising:

the case information acquisition module is used for acquiring case information of a patient, and the case information at least comprises intraoral dental model image information;

the data processing module is used for acquiring the case information from the case information acquisition module, identifying the file format type of the case information, and converting the case information of different file format types into unified file format information of a preset format type according to a data format conversion protocol;

the orthodontic scheme generating module generates a tooth orthodontic scheme according to the unified file format information of the preset format type; the dental appliance includes: a digitized dental model and/or a digitized shell-shaped dental appliance model;

and the product preparation module is in communication connection with the data processing center, receives the tooth correction scheme sent by the data processing center, and prepares the shell-shaped tooth correction device according to the tooth correction scheme.

2. The system of claim 1, wherein the data processing module comprises:

3. The system of claim 2, wherein the data processing module further comprises: a search unit for searching the search results of the search unit,

the retrieval unit is used for searching a data format conversion protocol corresponding to a preset format type according to the file format type to be converted; and converting the image information of the intraoral dental model to be converted into the image information of the intraoral dental model in a preset format type according to the searched data format conversion protocol.

4. The production system of a shell-shaped dental appliance of claim 3, wherein if the search unit does not find the corresponding data format conversion protocol, the search unit is further configured to find a first data format conversion protocol for converting the file format type to be converted into a third file format type and find a second data format conversion protocol for converting the third file format type into a preset format type, and the format conversion unit is further configured to convert the intraoral dental model image information to be converted into the intraoral dental model image information of the preset format type according to the found first data format conversion protocol and the found second data format conversion protocol.

5. The production system for shell-shaped dental appliances of claim 3 or 4, wherein the data processing module further comprises: and the verifying unit is used for verifying whether the converted image information of the intraoral dental model is abnormal or not, sending reminding information if the converted image information of the intraoral dental model is abnormal, and sending the reminding information to the correction scheme generating module if the converted image information of the intraoral dental model is abnormal.

6. The production system for shell-shaped dental appliances of claim 2, wherein the file format type of the case information includes STL, OBJ, or PLY; the data format reading unit reads the suffix type of the case information to classify the file format type.

7. The production system for shell-shaped dental appliances of claim 1, wherein the appliance scenario generation module includes: at least one appliance design module;

the appliance design module includes:

the data judgment unit is used for judging whether the converted intraoral dental model image meets a preset format type or not, and if not, sending abnormal import reminding information;

the data denoising unit is used for denoising the acquired image information of the intraoral dental model if the preset format type is met, and restoring the acquired image information of the intraoral dental model into a dental model image which can meet the requirement of shell-shaped tooth appliance scheme design;

the image cutting unit is used for cutting the restored dental model image to obtain the information of the digitized model of the single tooth in the initial state;

the tooth arrangement unit is used for carrying out tooth arrangement treatment on the single tooth digital model in the initial state according to the target correction state;

the scheme generation unit is used for acquiring correction parameters between the initial state and the target correction state of the teeth to generate a correction scheme;

and the appliance design unit generates a matched digital dental model and/or a digital shell-shaped dental appliance model according to the appliance scheme.

8. The production system for shell-shaped dental appliances of claim 1, wherein the case information acquisition module includes:

an intraoral data acquisition unit for acquiring intraoral dental model image information of a patient;

the patient information acquisition unit is used for acquiring the correction auxiliary information of the patient; the correction auxiliary information comprises geographical position information of the patient.

9. The system of claim 8, further comprising: the production allocation center is respectively in communication connection with the data processing center and the product preparation module;

the production allocation center acquires the current production rate of each product preparation module, and sends the tooth correction scheme to the product preparation modules according to the production rate condition to complete the processing of the shell-shaped tooth correction device;

the number of the product preparation modules is multiple, and the product preparation modules belong to different geographic positions.

10. The production system for shell-shaped dental appliances of claim 9, wherein the production deployment center is further configured to select the product preparation module satisfying the location condition in the production system according to the geographic location information of the patient, and further complete the processing of the shell-shaped dental appliance according to the current output.

11. The system of claim 8, further comprising: the product distribution management module is respectively in communication connection with the data processing center and the product preparation module;

the product distribution management module is used for carrying out distribution processing on the shell-shaped tooth appliance prepared by the product preparation module according to the geographical position information of the patient and receiving distribution information.

12. The production system for shell-shaped dental appliances of claim 8, wherein the case information acquisition module further comprises:

the initial scheme generation unit is used for generating initial display information of an initial tooth correction scheme displayed for a user according to the dental model image information and the correction auxiliary information;

the information feedback unit receives feedback display information of a user according to the preliminary display information; when the feedback display information is 'confirmation correction', the case information is sent to the data processing center; when the abnormal condition is confirmed, carrying out scheme adjustment;

and the scheme adjusting unit is used for updating the preliminary display information according to the feedback display information fed back by the information feedback unit.

13. The system of claim 1, wherein the product preparation module comprises: and 3D printing the digital shell-shaped tooth appliance model to prepare a shell-shaped tooth appliance, or 3D printing the digital dental jaw model, pressing a film and cutting to prepare the shell-shaped tooth appliance.

14. The system of claim 1, further comprising: a data storage module; the data storage module is in communication connection with the data processing center and is used for storing the case information according to the corresponding file format type and storing the designed tooth correction scheme and the tooth correction scheme.

15. A method for producing a shell-shaped dental appliance, which is applied to a system for producing a shell-shaped dental appliance according to claims 1 to 14, comprising:

acquiring case information of a patient, wherein the case information at least comprises intraoral dental model image information;

reading the case information and identifying the file format type of the case information;

converting the case information of different file format types into unified file format information of a preset format type according to a data format conversion protocol;

generating a tooth correction scheme according to file format information of a preset format type; the dental appliance includes: a digitized dental model and/or a digitized shell-shaped dental appliance model;

and sending the tooth correction scheme to a corresponding product preparation module, so that the product preparation module prepares the shell-shaped tooth corrector according to the tooth correction scheme.