KR20040001698A - Service System of Digital Tooth Model Using Internet and 3D Scanner, Method Thereof - Google Patents

Abstract

PURPOSE: A system and a method for offering a digital teeth model using the Internet and a 3-D(Dimensional) scanner are provided to convert a plaster teeth model into the 3D digital teeth model and to store, measure, and manage the 3D digital teeth model. CONSTITUTION: 3D scanners(22,26) generate the 3D digital data by using the plaster teeth model. A 3D rapid prototyping device(28) models the 3D model by using the 3D digital data. 3D data processors(20,24) analyze or modify the 3D digital data by connecting to each 3D scanner, and model the 3D model by using the 3D rapid prototyping device. A database(15) stores the 3D digital data of the plaster teeth model generated by the 3D scanner. Dentist computers(30-33) analyze or modify the 3D digital data downloaded from the data by installing to each dental clinic. A server(10) stores the 3D digital data in the database, transmits it by responding to connection of the 3D data processors and the dentist computes.

Description

Service System of Digital Tooth Model Using Internet and 3D Scanner, Method Thereof}

The present invention relates to a digital dental model providing system and method using the Internet and a three-dimensional scanner, and more particularly, to a three-dimensional digital dental model using a three-dimensional scanner system for computer modeling, and dental services The present invention relates to a digital dental model providing system and method using the Internet and a three-dimensional scanner that scans the shape of a shape into three-dimensional shape digital data and makes it easy to store, manage, store, and utilize the same.

In general, dental treatment in a dental clinic is a functional disorder caused by abnormal dental conditions of the patient (sounds when chewing, poor writing of food, problems with pronunciation, restoration of teeth, etc.) And the treatment of aesthetic disorders (such as squeezes, teeth, teeth, etc.).

This treatment involves 1) preparing a plaster model of the patient's teeth at the start of treatment and measuring the current state data (tilt, position, shape, etc.) of the teeth, and 2) replacing the abnormal parts of these teeth with normal teeth. 3) Determine the treatment method, and 3) proceed to the treatment using the various treatment devices.

However, in order to find out, diagnose, and measure the current state of the patient's teeth, the conventional method requires a lot of time and effort because the 3D treatment data were manually obtained from the dental gypsum model. There have been many difficulties in large spaces and maintenance because they have to be stored and managed permanently or permanently.

To eliminate these problems, the dental gypsum model generated in the hospital is scanned with a 3D scanner, stored as digital data, transmitted to the hospital via the Internet, and the 3D tooth shape data is confirmed on a computer. We propose a 3D digital tooth model service system that can store tooth models.

The 3D digital tooth model service system breaks the traditional way of manually measuring, storing, and storing dental gypsum models during dental treatment, and using 3D digital tooth models and 3D digital coordinate measuring systems By analyzing and processing the data inside the computer, the aim is to measure and store the data necessary for dental treatment more conveniently and accurately than conventional manual methods.

To this end, a technique for measuring the size and shape of the dental gypsum model by using a three-dimensional scanner is the same as the actual value (image acquisition, error and noise reduction, data conversion), and digital three-dimensional point group data obtained through measurement. In order to measure the shape data of the tooth model (a numerical value indicating the relative position of the patient's teeth and the length of the inclination for the tooth treatment, etc.), the surface of the object is generated using the point data, that is, the mesh and the curved surface. Expression generation skills are required.

Currently, dental gypsum models produced by hospitals are required to be permanently stored as patient treatment data, and the quantity of these dental gypsum models is estimated to have tens of thousands in general hospitals. Dental gypsum models are stored in separate storage spaces using specially designed storage boxes and devices to prevent them from being heavy, bulky and easy to break because the material is close to stone. It is very difficult to find the old data (teeth gypsum model) from thousands to tens of thousands of data over the years, and the current problem is that the problem of breakage and loss occurs frequently during the transportation of the dental gypsum model after finding. Separate space for storage is also a significant cost, so the space problem is a big problem in the dental hospital of the general hospital, which is also a big problem in private dental hospitals.

Therefore, the present invention has been devised in view of the problems of the prior art, and its object is to convert the dental gypsum model into a three-dimensional digital dental model, eliminating the extra storage space, making manual measurements and managing data on a computer. Convert the dental gypsum model into 3D digital tooth data for all tasks (measurement, storage, data management, etc.), and the internet and 3D for storing, measuring and managing this 3D digital tooth data The present invention provides a digital dental model providing system using a scanner and a method thereof.

1 is a block diagram illustrating a digital dental model providing system using the Internet and a three-dimensional scanner according to the present invention.

2A to 2D are exemplary views of a three-dimensional scanner used in the present invention, and an example screen of a program for driving the three-dimensional scanner.

Figure 3 is an exemplary screen for explaining a reverse engineering program in the present invention.

4A to 4B are exemplary screens for explaining a digital tooth model.

5A to 5C are exemplary screens for explaining a virtual base generation process.

6A to 6B are exemplary screens for explaining a digital tooth model in an occlusal state.

7A-7B are exemplary screens for cross-sectional views of occlusal models.

8a to 8b are exemplary screens for the initial screen of the home page and the file download screen in the present invention.

9A to 9B are user programs used in the present invention, illustrating an example of a database management program and a viewer of a patient.

10 is a flowchart illustrating a digital dental model providing method using the Internet and a three-dimensional scanner according to the present invention.

In order to achieve the above object, the present invention comprises a plurality of three-dimensional scanner for generating three-dimensional digital data using a dental gypsum model; At least one three-dimensional molding machine for molding a three-dimensional model using the three-dimensional digital data; A plurality of three-dimensional data processing units connected to the plurality of three-dimensional scanners respectively for analyzing or modifying the three-dimensional digital data and for molding a three-dimensional model using the three-dimensional molding machine; A database for storing three-dimensional digital data of the dental gypsum model generated by the three-dimensional scanner; A plurality of dental computers, each installed in a dental hospital and having a function of downloading and analyzing or modifying 3D digital data generated by a dental gypsum model from the database; The first three or more modified three-dimensional digital data of the dental gypsum model through the plurality of three-dimensional data processing unit is received and stored in the database, the three-dimensional digital in response to the connection of the plurality of three-dimensional data processing unit and the dental computer It provides a digital dental model providing system using the Internet and a three-dimensional scanner, characterized in that it comprises a server for retrieving and transmitting data from the database, and stores the modified three-dimensional digital data in the database.

The database comprises a patient name, a serial number of a tooth model, a dental clinic, the first three-dimensional digital data and a plurality of modified three-dimensional digital data, the server comprising the plurality of dental computers and three-dimensional data processing unit It comprises a web server connected through the Internet, a DB server for managing the data of the database.

In order to achieve the above object, the present invention comprises the steps of generating three-dimensional digital data of the dental gypsum model produced in the dental hospital using a three-dimensional scanner; Registering the three-dimensional digital data with a server via the Internet; Downloading the three-dimensional digital data by connecting a dental computer installed in a dental clinic to the server through the Internet; Analyzing the downloaded 3D digital data with a dental computer to check whether or not the data is normal; Re-registering the analyzed or modified three-dimensional digital data with the server; Molding a three-dimensional model with a three-dimensional molding machine using the re-registered three-dimensional digital data; Comparing the analyzed three-dimensional model with the three-dimensional digital data, and modifying the three-dimensional digital data using the dental computer and storing the three-dimensional digital data in the server; The present invention also provides a method for providing a digital dental model using the Internet and a three-dimensional scanner, which includes forming an actual tooth using the modified three-dimensional digital data.

As described above, in the present invention, the dental model of the dental patient is converted into three-dimensional digital data to be processed, thereby increasing work process efficiency and saving space due to model storage, thereby reducing maintenance costs.

(Example)

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention described above in more detail.

The present invention converts the dental gypsum model of the patient generated and produced in the dental hospital using the three-dimensional scanner (22, 26) to a three-dimensional digital tooth model (Digital Study Model) in the model shop, the system server 10 The 3D digital tooth model is stored in the database 13 to 15 and transmitted to the dental hospital through the dental computers 30 to 33 connected to the Internet.

In order to have the function as described above, as shown in FIG. 1, a plurality of dental computers 30 installed in a plurality of dental offices having a function of analyzing and modifying a three-dimensional digital dental model using three-dimensional data of the dental model 30 33) is connected to the Internet. The plurality of dental computers 30 to 33 should be provided with a viewer program having a function of displaying and modifying 3D data.

The viewer program is downloaded after being connected to the system server 10 through the Internet and installed in each of the dental computers 30 to 33. The viewer program is viewed in various directions on the computer monitor as shown by the dental gypsum model. In addition, it has the function of measuring information necessary for medical practice (diagnosis) from 3D digital tooth model and storing and organizing patient information (diagnosis record, photograph, etc.) together.

In addition, in each dentist, the patient's teeth are made into a dental gypsum model using gypsum and transferred to the model processing shop.

The model work shop is provided with a plurality of three-dimensional scanners 22 and 26, which are connected to the computers 20 and 24, respectively.

At least one of the three-dimensional scanners 22 and 26 and the computers 20 and 24 should be installed in the model work shop, and in the case where the processing quantity is large, a set is added.

In addition, at least one computer 24 of the computers 20 and 24 is connected to the RP equipment 28 which is a three-dimensional model machine to produce a tooth model.

RP equipment 28 used in the present invention is a three-dimensional rapid prototyping machine (3D Rapid Prototyping), by stacking a plurality of layers having a predetermined thickness from a variety of materials using three-dimensional CAD data, CT and MRI scan data ( layer-by-layer), a device for producing three-dimensional models in a short time.

Such a three-dimensional rapid molding machine is used to manufacture a prototype and manufacture a small amount of mass production, and according to the principle of operation, SLA (Stereo Lithographic Apparatus) rapid molding machine, SLS (Selective Laser Sintering) rapid molding machine, LOM (Laminated Object Manufacturing) rapid molding machine, FDM (Fused Deposition Modeling) rapid molding machine and the like, in addition to the RP equipment as described above it can be produced a tooth model using a three-dimensional engraving machine.

The three-dimensional scanners 22 and 26 installed in the model machining shop generate a three-dimensional digital tooth model by measuring the dental gypsum model manufactured and delivered at each dentist. The three-dimensional digital tooth model thus generated is the RP It is input to the equipment 28 and used to produce a tooth model and graphically on the monitor to determine the fit of the dental gypsum model or tooth model.

As shown in Fig. 2A, the three-dimensional scanners 22 and 26 have a laser diode 22a for generating a laser slit, a table 22c for holding a measurement object, and a driver 22d for changing the attitude of the measurement object. And a camera 22b for reading the laser light reflected on the object to be measured, a control unit responsible for data input / output, and the like, and a three-dimensional digital tooth model generated by the three-dimensional scanners 22 and 26. Data is input to the computers 20 and 24.

In addition, a drive program for driving control of the three-dimensional scanners 22 and 26 is installed in the computers 20 and 24 installed in the model processing shop, and the teeth are provided through a graphical interface as shown in Figs. 2B to 2D. Generate data from 3D digital tooth models from gypsum models and analyze the data.

In addition, a reverse engineering program for reverse engineering is installed with a graphical interface as shown in FIG. 3. Information about the tooth shape required for medical treatment is provided through data of a three-dimensional digital tooth model edited by the reverse engineering program. The height, width, width, volume, and slope of each tooth can be seen, and it consists of the function of drawing the upper and lower jaw occlusal, cross-sectional observation, and writing the result report after measurement.

And, using the three-dimensional digital tooth model generated by the three-dimensional scanner (22, 26) has a function to move each tooth constituting the three-dimensional digital tooth model on the monitor, a dentist or dental It allows the data change by the technician, and stores the data of the modified three-dimensional digital tooth model in the system server 10, and has a function to control the RP equipment 28 to produce a tooth model.

Therefore, it is possible to perform more objectively and scientifically the medical treatments that depended on the senses and experiences of dentists, and this information can be used for academic purposes.

The data produced and generated as described above are stored in a database composed of a hospital DB 13, a patient DB 14, a model DB 15, and the like through the DB server 12, and a program for utilizing these data and materials is available on the Internet. If you download it and install it on each of the dental computers 30 to 33, you can freely turn the received 3D digital tooth model as if it were a real model or measure the shape information of various teeth easily and accurately.

In other words, when the 3D digital tooth model is converted into a graphic through a viewer program installed in the dental computers 30 to 33, the tooth shape of the patient is converted into a 3D virtual model as shown in FIGS. 4A and 4B. .

The 3D digital tooth model converted into the 3D virtual model can be examined while changing the viewpoint freely, and virtually generates and combines a base corresponding to the tooth through the process as shown in FIGS. 5A to 5C. As shown in FIG. 6B, a three-dimensional digital tooth model of an occlusal state may be completed.

In addition, when a cutting line is designated to look at one cross section of the completed occlusal 3D digital tooth model, the cross section of the corresponding portion may be examined as shown in FIGS. 7A and 7B.

Furthermore, it is possible to serve as an integrated system for storing and managing patient-specific information such as medical records and photographs along with 3D digital tooth models. Therefore, when the dentist enters the patient's name into the dental computer (30 to 33), all the medical information of the patient can be grasped immediately, so the time required for diagnosis is greatly shortened and the efficiency is increased.

The sequence of operations for producing a tooth model for treating a patient's teeth using the system constructed as described above is as follows.

The dental gypsum model of the patient produced at each dental hospital (S 3) is sent to the modeling laboratory (S 4), and the modeling laboratory uses the three-dimensional digital tooth model using the three-dimensional scanners 22 and 26. (3D data) is generated (S5), and connected to the system server 10 via the Internet and stored in the DB server 12 for each dental office (S6). In this case, in the description of the present invention, the place where the three-dimensional scanners 22 and 26 are installed is limited to a model processing shop, but the place where the scan work is not physically restricted, and the system server is available wherever the Internet is connected. In connection with (10) it can function. The scanned dental plaster model is delivered back to each dentist.

Before going through the above process, the dentist should register as a member to the system server 10 through the dental computer 30 to 33, receive an ID and password for access (S 1), and download and install the viewer program. (S 2)

Then, the system server 10 is connected to the system server 10 through the dental computers 30 to 33, and the data of the 3D digital tooth model stored in the DB server 12 is downloaded through the above process, and the downloading process is as follows. Same as

The dentist connects to the web server 11 via the Internet using the dental computers 30 to 33 in his or her hospital. When connected to the web server 11, a homepage screen as shown in FIG. 8A is presented, and a login page for inputting an ID and a password appears. If you enter your ID and password to verify their identity, the web server 11 connects to the DB server 12, and the dental plaster models commissioned by the dentist a few days ago are already scanned and stored in the database. The download window configured as shown in Fig. 6 is displayed on the dental computers 30 to 33. The desired model is selected and downloaded from the presented models (S 7).

At this time, there are two methods for downloading three-dimensional data to the dental computers 30 to 33 according to the customer's option. The first is an automatic download method. When a customer logs in, the web server 11 checks the latest connection date of the customer and the last downloaded files, and if there is newly scanned data, it automatically goes to the dental computer 30 to 33. Send the data. Therefore, the customer can automatically download the latest data just by logging in to the web server 11.

Secondly, when the user logs in through the dental computer 30 to 33 by the manual download method, the data of the teeth requested for scanning is displayed on the screen of the web page (as shown in FIG. 8B), and the customer only wishes You can choose to download it, and the customer can only see the data of the model he / she commissioned, but not the other customer's model.

Serial Number Patient's Name Referral Hospital Registration date Working day Model Delivery

In addition, in Table 1, 'serial number' is a simple serial number set in the order in which the scan was requested, 'patient name' is the name of the dental gypsum model patient to be scanned, and 'referring hospital' is the name of the hospital that requested the scan. , 'Registration Date' means the date we received the dental gypsum model, and 'Working Day' means the date scanned and converted into 3D data. In addition, whether or not the model is sent to the headquarters, the scan was completed, it indicates whether the dental gypsum model was sent back to the dentist asked to scan.

The data of the three-dimensional digital dental model downloaded to the dental computers 30 to 33 can be used directly for treatment by interworking with a pre-installed integrated program (a user program shown in FIGS. 9A and 9B).

The system server 10 is composed of a web server 11 and a database and DB server 12 for storing the data of the three-dimensional digital tooth model by classification. The web server 11 has a homepage and a bulletin board of the company, and serves to connect the DB server 12 by allowing only customers to log in by database of their ID and password. This DB server 12 is stored in the record of the dentist who requested the scan. Therefore, when a dental clinic is connected to the system server 10 and requests a download, data related to the dental clinic are transmitted through the Internet.

In addition, since the stored data may be lost due to a virus or a physical shock of the hard disk of the system server 10, backup of the data is also important.

Prepare a secondary hard disk and keep it updated whenever there is a change in the main hard disk, and backup the secondary hard disk to a CD at regular intervals so that the backup is done in duplicate. So if the dentist accidentally erases the data, we can send it back to you.

In addition, if you want to make a real model using the information of the stored three-dimensional digital tooth model, using the RP (Rapid-Prototype) equipment to create a virtual model to the existing model is also available. In addition, not only the RP equipment but also the 3D engraver can be used to produce the actual tooth model from the digital model information. This technology is also rapidly evolving so that the gap between the original tooth and the RP model is decreasing. The problem is accurate scanning because it can be processed with precision. The company's products fully meet the requirements.

After downloading the data of the three-dimensional digital tooth model from the system server 10 to the dental computers 30 to 33 and analyzing the form through a viewer program, the analysis is performed. If a three-dimensional model using the RP equipment 28 is needed, a model machining shop is requested to process the three-dimensional model.

The model processing machine downloads the data of the requested three-dimensional digital tooth model (S 10) and processes the three-dimensional model through the RP equipment 28 (S 11), and transmits the dental hospital (S 12).

The dental clinic received the 3D model processed at the model processing station, comparing the patient's actual teeth with the tooth model, checking whether there are any differences, and correcting the data of the 3D digital tooth model (S 13). ) Is stored in the DB server 12 (S 14), and requests the secondary production of the tooth model.

In the model processing station, data of the 3D digital tooth model is downloaded again from the DB server 12 (S 15), and the tooth model is re-created using the RP equipment 28 (S 16), and transferred to the dental hospital. (S 17).

In the dental clinic, the transferred tooth model is analyzed and confirmed to confirm the shape (S 18), and the actual machining request is made to the model machining (S 19), and the model machining is made of the actual teeth (S 19), the dental hospital (S 20), the dental clinic to the patient to receive the actual teeth delivered (S 22).

In this way, the first dental gypsum model produced at the dental hospital has no reason to store it after it is converted into a three-dimensional digital tooth model, so there is no need for maintenance costs such as securing a space for storage and to treat the teeth of a specific patient. There is no need for a cumbersome process to find the desired dental gypsum model among numerous dental gypsum models.

In addition, since the necessary corrective work for perfect teeth production is easily made around the 3D digital tooth model, the work efficiency is improved, and the data of the 3D digital tooth model and the RP equipment 28 which is the 3D molding machine are used. Therefore, since the tooth model is made, there is an advantage in that the time and cost required for making the model are reduced, and a much more sophisticated model can be produced than the existing model.

The present invention made as described above by converting the dental gypsum model initially produced for the teeth required for the treatment of dental patients to three-dimensional digital data to increase the efficiency of the work process required for the production of teeth, space according to the model storage There is no advantage in securing maintenance costs.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and the general knowledge in the technical field to which the present invention pertains without departing from the spirit of the present invention. Various changes and modifications will be made by those who possess.

Claims (4)

A plurality of three-dimensional scanners for generating three-dimensional digital data using a dental gypsum model; At least one three-dimensional molding machine for molding a three-dimensional model using the three-dimensional digital data; A plurality of three-dimensional data processing units connected to the plurality of three-dimensional scanners respectively for analyzing or modifying the three-dimensional digital data and for molding a three-dimensional model using the three-dimensional molding machine; A database for storing three-dimensional digital data of the dental gypsum model generated by the three-dimensional scanner; A plurality of dental computers, each installed in a dental hospital and having a function of downloading and analyzing or modifying 3D digital data generated by a dental gypsum model from the database; The first three or more modified three-dimensional digital data of the dental gypsum model through the plurality of three-dimensional data processing unit is received and stored in the database, the three-dimensional digital in response to the connection of the plurality of three-dimensional data processing unit and the dental computer And a server for extracting and transmitting data from the database, and storing the modified three-dimensional digital data in the database. The internet and three-dimensional scanner of claim 1, wherein the database includes a patient name, a serial number of a tooth model, a dental clinic, the first three-dimensional digital data, and a plurality of modified three-dimensional digital data. Digital Tooth Model Provision System. The internet and three-dimensional scanner of claim 1, wherein the server comprises a web server to which the plurality of dental computers and the three-dimensional data processing unit are connected through the Internet, and a DB server managing data of the database. Digital tooth model providing system using. Generating three-dimensional digital data of a dental gypsum model manufactured at a dental hospital using a three-dimensional scanner; Registering the three-dimensional digital data with a server via the Internet; Downloading the three-dimensional digital data by connecting a dental computer installed in a dental clinic to the server through the Internet; Analyzing the downloaded 3D digital data with a dental computer to check whether or not the data is normal; Re-registering the analyzed or modified three-dimensional digital data with the server; Molding a three-dimensional model with a three-dimensional molding machine using the re-registered three-dimensional digital data; Comparing the analyzed three-dimensional model with the three-dimensional digital data, and modifying the three-dimensional digital data using the dental computer and storing the three-dimensional digital data in the server; Method for providing a digital tooth model using the Internet and a three-dimensional scanner, comprising the step of forming a real tooth using the modified three-dimensional digital data.