KR102107019B1 - Dental sculpture training system and dental sculpture training method using the same - Google Patents

Abstract

The present invention relates to a dental sculpture training system and a dental sculpture training method using the same, wherein the dental sculpture training system and the dental sculpture training method using the same, in the dental sculpture training system comprising a trainee terminal device, a manager terminal device, and a server, the trainee terminal device is mainly composed of a dental information function on the dental sculpture training mode with augmented reality, a guide function, an illustrate function, a 3D function to see a tooth in three dimensions, a tapeline function, a video function, and lecture listening.

Description

Dental sculpture training system and dental sculpture training method using the same}

The present invention relates to a dental sculpting practice system and a dental sculpting practice method using the same, and more specifically, a dental sculpting practice system that allows practitioners to perform dental practice accurately while confirming the completeness of the dental sculpting practice using augmented reality. It is about the practice method.

The 4th Industrial Revolution is having a great influence on medical education. The practice of dental morphology is practiced by acquiring complex tooth characteristics, dimensioning and sculpting them with a ruler on plaster or wax, and it takes a lot of concentration and time for the practitioner, making learning immersion and interests difficult and accurate for educators and managers. Evaluation is not easy. Therefore, the need for advanced education to meet the changes and trends of the times has emerged, and the introduction of advanced IT technology and smart devices is urgently needed.

Recently, a dental design technique using an AR (augmented reality) object in the dental field has been proposed. The augmented reality dental design method and system of Korean Patent Publication No. 10-2016-0143654 suggests that medical care establish a new augmented reality environment. As a prior art in dental morphology education, a presentation system for dental morphology education has been proposed as Publication No. 2002-0030415.

The above technology provides a technique for displaying a virtual tooth as a 3D image and rotating the image through a system that reconstructs and outputs 3D image data of the corresponding tooth based on a viewpoint to rotate the image of the tooth. . However, this technology provides an effect of learning by doing through interaction with virtual objects in the real space, so it is difficult to achieve an effect of promoting concentration and learning effect on learning.

To solve this problem, a dental carving training system using mobile (Patent No. 10-1973787) has been proposed. The above technology displays a virtual wax model image on the display portion of the trainee's mobile device, and the operation processing unit of the trainee mobile device receives a motion signal of the touch pen on the virtual wax model image from the display portion of the trainee's mobile device, and touches it. A system for displaying a virtual tooth wax model image, which is an image of a practice result, is provided by recognizing a movement signal of a pen as a engraving signal according to the degree of engraving, thereby virtually carving a virtual wax model into a tooth shape. For this reason, the practitioner can virtually perform the sculpting practice according to the sculpting step of each tooth, and can compare and evaluate the virtual tooth wax model image and the training set tooth image, which are the results of the virtual training.

However, the above technique is a virtual practice by a touch pen and is not suitable for a gypsum model. In addition, it is difficult to grasp whether the practitioner is operating correctly during the training process, and there is no objective standard for educators or managers to evaluate it.

The first task to be achieved by the present invention is a dental carving practice method for maximizing immersion and achievement by allowing a dental sculpture practitioner to perform a dental carving practice process more easily in a correct posture in an augmented reality environment, and confirming the completeness during the practice. To provide.

The second task to be achieved by the present invention is to provide a dental carving practice system and a practice method capable of maximizing a tooth learning effect while simultaneously assessing objectively by an educator or manager by applying the practice method.

In order to solve the above problems, the present invention is a dental carving device training system including a trainee terminal device, a manager terminal device, and a server, wherein the trainee terminal device has a tooth information function in a dental carved practice mode in which augmented reality is implemented, It is characterized by including a guide function, an illustration function, a 3D function to see a tooth in three dimensions, a tape measure function, a video function, and listening to a course.

In addition, the present invention, in the dental carving system, the trainee terminal device is placed in a fixed state on the cradle, and the dental carving practice materials such as gypsum rods or wax are arranged at a distance of about 20 to 30 cm below the terminal device. Characterized in that the practice is performed.

In addition, the present invention in the dental carved practice system including a practitioner terminal device, an administrator terminal device and a server, the practitioner terminal (U) running the application after installing the practical application (S100); Selecting a tooth to be practiced after the application is executed (step S200); When the tooth selection is performed, a practice mode entry step (step S300) in which a function including a tooth guideline, an illustration, a 3D, a tape measure function is displayed on the basis of augmented reality on the practice mode; After entering the practice mode, the guideline, illustration, 3D, and tape measure function overlap with the practice image being taken through the camera while the practitioner actually engraves the gypsum rod in the practice mode. Characterized in that it comprises a sculpture practice step (step S400).

In addition, according to the present invention, the 3D objects for the dental fragments of the practitioner terminal, which the practitioner terminal has completed on the basis of the training image, generates the dental fragmentation training data, and the data is DBized to the administrator terminal together with the practitioner's information data. After completing the step of transmitting and completing the training (step S500), the manager terminal evaluates the tooth fragment image transmitted from the training terminal and adds a comment to the training result.

The dental manipulation practice system using the present invention is performed while presenting the guidelines for gypsum fragmentation for each tooth by using AR (augmented reality) technology, thereby adding immersion to educational content. As a result, more autonomous and voluntary learning is possible through inducing the practitioner's interest, and the educational effect is maximized and accurate evaluation is also possible for the educator (or manager).

In fact, through this program, a satisfaction survey was conducted for 10 dental technicians and 10 students, which achieved an average satisfaction of 96.75. The advantages of ① can be easily carved or illustrated anytime, anywhere, not at home or at school. ② When learning the first carving, the order is vague, but when you carve by yourself, the order, illustration, etc. from the order of carving is good. ③ When practicing gypsum, it was often difficult to sculpt minute parts only by looking at the book, but it is really helpful because you can practice while watching the video. ④ Through the illustration, tape measure, etc., more sophisticated manipulation and completeness of tooth fragmentation can be seen, so that more concentration and improved practice are possible. Was confirmed.

In addition, since the training results of the trainees are transmitted to the manager's terminal, evaluation and comments on the training results can be immediately followed, thereby maximizing the effectiveness of education.

1 is a schematic diagram schematically showing a dental carving practice system of the present invention.
2 is a simplified configuration diagram of a terminal device of a trainee in an embodiment of the present invention.
3 is a flow chart schematically illustrating a method for practicing the dental carving of the present invention.
4 is a flowchart illustrating a practice method when the reference point is less than or equal to FIG. 3.
Figure 5 shows a tooth array intro screen as an embodiment of the present invention.
6 shows a practice screen as an embodiment of the present invention.
7 is a screen showing the tooth information function of the present invention.
8 is a screen showing the guide function of the present invention.
9 is a screen showing the illustrated function of the present invention.
10 is a screen showing the 3D function of the present invention.
11 is a screen showing the tape measure function of the present invention.
12 is a screen showing that a tooth is implemented in augmented reality (AR) according to the present invention.
13 is a posture in which the practitioner is generally carving teeth.
14 is a photograph showing a posture of a practitioner practicing a tooth piece according to the present invention.
15 shows a tooth average dimension table in the present invention.

Sculpture of teeth is the process of reproducing anatomy and clinical tooth shape and acquiring skills by depicting and sculpting tooth shape, and it is most important to fully reproduce accurate dimensions.

Even beginners can accurately recognize the ratios of the crown's mesial nerves, nasal bronchi, and crown lengths in advance, and if they carve teeth that fit the characteristics of each tooth against the standard values, the teeth will be trained more easily. Can be.

Gypsum and wax used in the practice of dental carving have different properties, so they have different advantages and disadvantages when carved. Wax is easy to remove and can complete the operation in a short time, and has the advantage of being able to reattach and correct incorrectly deleted parts, but it is unsuitable for dental sculpture training that requires highly precise hand movements. On the other hand, the gypsum block has a great effect on learning the sculpture training through hand movements, because the shape of each part of the tooth is drawn by drawing a pencil on the block and grasping the characteristics of the teeth step by step. There is a problem that it is difficult to correct the deleted part. The present invention can be used for both gypsum and wax carving, but is a more beneficial practice method for gypsum carving.

In the present invention, augmented reality (AR) means that a computer graphic image or the like is inserted into a real sculptural environment so that an image of a real reality and a virtual shape are combined or matched, so that a tooth fragment is actually performed.

1 is a schematic configuration of a dental carving practice system of the present invention, and FIG. 2 is a schematic configuration of a trainee terminal device using augmented reality in one embodiment of the present invention, thereby briefly describing the system of the present invention. .

As shown in Fig. 1, the present invention is a terminal device (U1, U2 .... Un) used by a practitioner or a user for dental carving practice, and a terminal device (M1, M2) used by an administrator to manage dental carving practice results. ..Mn) and a system including a server are shown.

The server 2 is built and managed by establishing and managing the information DB required for various practice modes, and transmits the practice result data of the trainee terminal and stores the information on the transmitted practice result data in the database DB, The administrator's terminal allows you to check the information on the training data and the training result data. In addition, it is operably connected to a voice server such as a network and a video server, and the terminals of the practitioner and the administrator are connected to the network to upload files. The server registers and registers the trainees through authentication, stores the training materials and provides them as needed, and stores the training results of the trainee terminals and connects them with the manager's terminals to share the evaluation results with each other.

The manager terminal (M) is a device that is connected to a practitioner terminal through a server to review and evaluate the training results and receive a review opinion or evaluation in the form of a message and a video to the practitioner terminal. The manager mode transmits 3D objects and pictures created through AR during the implementation process by the trainee terminal to the server, and the manager terminal downloads manageable object data and photos, and 3D modeling of the tooth objects generated by the trainee terminal and You can check the picture. In addition, in the admin mode, the practitioner can check the time when the practitioner has access to the AR screen and the time that has passed out, so that it can be sent to the database.

The terminal device U1 of the trainee may be embodied in the form of a mobile communication terminal such as a smartphone or a tablet. The control unit 10, the memory unit 20, the input unit 30, the output unit 40, the display unit ( 50), a communication unit 60, a camera unit 70, and may include more components. The camera unit 70 is a device for taking a practice tooth image. The communication unit 60 includes one or more modules for wireless communication. The input unit 30 includes a touch pad, a keypad, and the like, and generates input data for controlling the operation of the terminal device. The output unit 40 generates output related to voice, time, and tactile, and outputs a voice signal related to a function performed in the training device. The display unit 50 displays a map image on the screen so that the practitioner can check the information processed during the training. The memory unit 20 may store various information for performing the operation of the control unit and carving the teeth, and temporarily store input / output data. The control unit 10 is to control the overall operation of the trainee terminal.

It should be interpreted that the system used in the present invention can apply various changes and have various embodiments, and various functions used in augmented reality can be added.

Hereinafter, a method of manipulating a tooth using augmented reality according to the present invention will be described.

3 is a flow chart schematically illustrating a method of actually practicing a dental sculpting using a dental sculpting training system.

When the practitioner terminal (U) applies for membership registration and installs the practicum application and then runs the app, the augmented reality-based teeth guidelines, illustrations, and 3D functions are installed, and an application for actually practicing the dental plaster fragments is executed. . (S100)

In step S100, when the application is executed after the dental carving practice application is installed on the practitioner terminal U, if a non-member, the application for membership registration and authentication is completed. When the application is executed, a screen listing teeth on the intro screen is displayed on the trainee terminal, and among these, the trainee terminal can select a desired tooth (step S200).

When the tooth selection is executed, the user enters the training mode immediately. In the practitioner's terminal, various functions such as augmented reality-based teeth guidelines, illustrations, and 3D, which are auxiliary tools for dental carving in the dental carving practice application, are displayed. (Step S300)

After entering the practice mode, the guideline, illustration, 3D, and tape measure functions overlap with the practice image being taken through the camera while the practitioner actually engraves the plaster bar in the practice mode. Is performed (step S400).

As a final step, 3D objects for dental fragments of the practitioner terminal that completed the training based on the dental training image being taken through the camera unit during the training process generate dental carving training data, and the data are DB and the information of the training It is the step of performing the training completion by being transmitted to the administrator terminal. (Step S500)

FIG. 4 is a flow chart illustrating a practice method when the dental carving practice is less than a reference point in the process of FIG. 3.

During the practice mode of the present invention, the practitioner can evaluate for himself how much his or her gypsum piece is completed compared to the standard value. Colors can be displayed if differences occur between the standard model and the practice teeth. In practice, it is indicated in blue if it is smaller than the set tooth, and in red if it is larger, so the practitioner can recognize that an error has occurred. In this case, it is difficult to know exactly how much the error is.

In the dental information function of the practitioner's terminal, 5 ① ~ ⑤ evaluation items of the tooth average dimension table provided by the practice evaluation criteria table for tooth fragments are set as standard values, so the practitioner's terminal has 5 faces of gypsum teeth (pure cotton, snowy face, mesial face) , Centrifugal surface, cutting edge) shape and illustration function of the practice mode screen overlapping with 5 surfaces (pure surface, snow surface, mesial surface, centrifugal surface, cutting surface) to compare whether the reference value is reached based on ① ~ ⑤ evaluation items have.

After the overlap, compare the standard tooth drawing of each side and the plaster tooth piece of the practitioner using the drawing function based on the 5 sides, and if the tooth is smallly or largely carved, a (-) score is displayed, and the tooth If it is correct, the score is displayed on the screen in real time when the practitioner performs a piece of gypsum teeth by displaying the (+) score, so that the score can be checked.

The augmented reality mode is implemented in the practitioner terminal, and in the process of practicing tooth fragmentation, the dental practice image inputted through the camera unit 70 is read and the controller 10 analyzes the image. When reading the dental practice image, the image process such as debris removal, line extraction, boundary group creation, etc. is used to distinguish the tooth plaster fragment from its background, identify the shape of the tooth plaster fragment, and identify the shape of the tooth plaster fragment and then 3D object in the shape of the tooth plaster fragment. After generating, it is possible to prepare for an error by comparing the generated 3D object modeling of tooth plaster and 3D modeling of augmented reality teeth.

The position measurement can be accurately performed through the tape measure function, and the error part, that is, the erroneously sculpted part is marked with (-) score, and the well-sculpted part is marked with (+) score to confirm completeness. By the numerical value or percentage, the practitioner proceeds with the dental sculpting practice so that the practice is completed with the goal of the final score of 100 (or 100%).

The practitioner terminal performs the dental carving practice in the augmented reality mode in S400, and then compares the dental practice image input through the camera unit 70 with the set reference value (S410), and if the rating of the practical dental sculpture reaches the reference value, the practice procedure To exit. If it does not reach the reference value, it returns to the piece practice mode again to perform the exercise, but even if the reference value has not been reached, the procedure can be terminated if a certain period of time has elapsed. After the training is completed, the training data is converted into a DB and transmitted to the administrator terminal along with the practitioner's information.

Figure 5 shows a tooth array intro screen as an embodiment of the present invention.

As shown in Fig. 5 (b), the teeth are largely divided into two parts, anterior teeth (front teeth) and posterior teeth (molar teeth). The anterior teeth range from the upper (large incisor) to the canine (canine), and the posterior teeth range from the small molars (small premolar) to the large molars (large molar). When the application is executed in step S100, a screen in which teeth are listed in an FDI (International numbering system) method in the practitioner terminal appears as shown in FIG. 5 (a). The teeth are arranged in the upper left 7 (21 ~ 27), the right 7 (11 ~ 17), the lower left 7 (31 ~ 37), the right 7 (41 ~ 47) A total of 28 teeth are mounted. The trainee terminal U selects a specific tooth to be trained from among the teeth mounted on the tooth selection screen (S200). In Fig. 5 (a), the practitioner terminal selects the maxillary right middle incisor 11 and presses the selection completion button.

6 shows a practice screen as an embodiment of the present invention.

In the present invention, the dental carving practice mode is characterized in that it includes a tooth information function, a guide function, an illustration function, a 3D function to view a tooth in three dimensions, a tape measure function, a video function, and a lecture listening function.

When the trainee terminal selects the maxillary right middle incisor and presses the selection completion button as shown in FIG. 5 (a), the practice screen for the selected specific tooth appears as shown in FIG. 6 and enters the practice mode (S300). For the practice of tooth fragmentation in the present invention, the dental information function, the guide function, the illustrated function, the 3D function to view the tooth in three dimensions, the tape measure function, the video function, the course listening, etc. It may be performed sequentially or simultaneously.

Hereinafter, the main functions used in the dental carving practice by selecting the middle maxillary incisor will be described in detail.

7 is a screen showing a tooth information function.

In the present invention, the dental information is characterized by including the shape, size, characteristics of the tooth surface, and the average tooth size, and a DB is constructed for each information. The practitioner may acquire necessary information by touching an icon displayed on the terminal.

When retrieving the maxillary incisor tooth information in an embodiment of the present invention, the position is the first position from the midline in the maxillary incisor arch, the shape is one left and right, the size is disclosed that the largest of the incisors. The tooth average dimensions are as disclosed in the tooth average dimension table in FIG. 14. The average tooth value of the maxillary central incisors is dimensional information about the length of the crown, the mesial nerve, the buccal or stenosis, the alveolar height of the mesial region, and the alveolar height of the distal region. The dental information is provided to be enlarged in a practitioner's terminal or to listen to a lecture by narration.

8 shows a guide function in the present invention.

The guide function of the present invention is characterized in that the size and shape of the selected tooth are displayed on the divided guide line. The numerical value can be displayed by the guide line. The practitioner is guided with the selected guide line on the screen of the practitioner's terminal through the guide function for the selected tooth prior to starting the tooth carving with the above-described gypsum rod and engraving device (not shown).

The left gypsum rod of FIG. 8 (a) has a plain / snow gypsum rod dimension of 15 mm, a mesial / centrifugal gypsum rod dimension of 14 mm, and has five faces. The practitioner on the gypsum rod draws a picture of a tooth by using a ruler and a pencil by hand on the gypsum rod side through the dental manipulation training app of the present invention, and the desired practice tooth on the right gypsum rod side in FIG. 8 (a). Can be illustrated.

FIG. 8 (b) shows that a guide function is implemented on a screen of a terminal of a trainee in which a maxillary incisor is selected, and is a tooth guide line for a pure surface. Among the guide lines, the gray line represents the size of the plaster bar, the red dotted line represents the tooth guide, and the dotted line represents the tooth bisecting line.

8 (c) is a guide function is implemented on the screen of the practitioner terminal, the guide line of the maxillary right middle incisor is pure cotton, lingual surface, mesial surface, centrifugal surface, the cutting tooth 5 teeth surface is guided by augmented reality (AR), The tooth appearance appears on the guide line. Standard dimensions and ridges, spheres, and depressions on each tooth surface can also be indicated on the guide line.

It is shown that the appearance of the teeth appear as the illustrated function of the present invention in FIG.

The guided tooth appearance is illustrated on the trainee terminal and is implemented in augmented reality on the guide line. 9 (b), the maxillary right middle incisor plane is guided by augmented reality (AR), illustrated on the practitioner's terminal, while the practitioner looks at an illustration of a tooth selected using a ruler and a pencil by hand on five plaster rods , On the gypsum rod, the teeth are drawn as they are. At this time, the front side of the gypsum rod is based on the maxillary right middle incisor. It is to draw the corresponding teeth according to the corresponding side of the cutting edge.

10 shows a 3D function according to the present invention.

The characteristic of the 3D model is that the data is digitalized, so that information can be efficiently stored, classified, and searched, and the 3D images reproduced on the terminal can be freely moved, enlarged, reduced, and separated to be applied to tooth fragments. In Fig. 10, it shows that the practitioner is zooming in and out by zooming in 2-3 times so that the three-dimensional characteristics of the maxillary right middle incisor can be well observed. To the trainee terminal, the tooth surfaces of the above-described pure cotton (narrow surface), lingual surface, mesial surface, centrifugal surface, and amputation surface (occlusal surface) are guided by augmented reality (AR), and the three-dimensional shape of the tooth fragment is 3D augmented reality (AR). Can be observed in time.

Figure 11 shows the tape measure function according to the present invention is to measure the specific dimensions of the teeth.

It is very important to measure the size for three-dimensional accuracy when carving a tooth. The commonly used boley gauge is displayed from 0 to 10 cm, and can be measured in the range of 0.1 mm, but more precise values can be measured. In order to measure the dimensions of the trainee terminal device, a tape measure function is implemented to take two or more predetermined points and measure the distance of each point to measure the length of the teeth.

FIG. 11 shows that the crown length of the maxillary right middle incisor is 10.5 mm using a tape measure function on the 3D screen. In addition to the length of the crown, the root of the crown, the root of the crown, the root of the crown, and the crown of the crown (narrow) , It is possible to measure the distance of the selected part such as the pure lingual diameter of the cervical region (narrow snow), the alveolar height of the mesial region, and the alveolar height of the distal region. In addition, there is a function to delete this point if the selected part point is not accurately taken, the delete function is useful when you want to correct the wrongly selected point using this function, and you can select the point again after deletion. Through the tape measure function, a tooth average dimension and a numerical value shown in FIG. 14 may be compared.

12 is a screen showing that a tooth fragment is implemented in augmented reality (AR) according to the present invention.

The selected maxillary right middle incisor has a guide line appearing on the trainee's terminal, the tooth surface appears on the diagram and overlaps the corresponding surface of the plaster bar. At this time, by implementing the video function, you can make a plaster sculpture by referring to the video connected with the YouTube video. The practitioner's terminal can engrave while using these functions when carving a tooth by simultaneously implementing the illustration function, 3D, tape measure, etc., and the description and image of the five faces of the plaster of the tooth.

13 and 14, the process of the practitioner carving a tooth will be briefly described.

Posture is a very important issue in sculpting teeth. The size of the teeth is small, around 10mm, and the pieces of the teeth require very precise work, so it is necessary to properly equip the work environment.

FIG. 13 shows a practitioner sitting in front of a predetermined work table and sculpting a tooth. The correct posture is sitting on a chair, straightening the waist, and then touching the arm on the wrist to the work table so that the sculpture comes to an explicit distance (about 25 cm). . However, if the practice time has passed for a long time, the posture wants to be scattered, such as placing a piece of plaster or wax on a desk or putting an elbow and hand on the desk and pulling the chair back, and it is easy to cause an accident due to sculpting.

FIG. 14 is a photograph of a practitioner practicing with the system of the present invention, wherein the practitioner is actually carving a maxillary right middle incisor on a plaster bar. The practitioner fixes the practitioner terminal device on the cradle, and the sculpture is placed about 20 to 30 cm away from the terminal device, so that the plaster bar is sculpted with a sculpting device while viewing a standard tooth screen on the practitioner terminal. At this time, the practitioner is practicing while drawing the maxillary right incisor with the detailed manipulation of the maxillary right incisor using the guide and illustration function while viewing the terminal device screen on the gypsum stick by zooming in and out of the guide, illustration screen, and 3D function screen. .

15 shows a tooth average dimension table for performing an evaluation on a practice result performed by a practitioner as an embodiment of the present invention.

The size of the teeth varies depending on the individual, but it is necessary to learn the basic shape of the teeth and set a standard value for evaluation of the sculpture practice. The standard values shown in FIG. 14 are based on the Russel Wheeler's modification of the average dimension table for permanent values of the rack to an ideal shape, but the standard values are not limited thereto.

The criteria for evaluating the dental sculpting practice according to the present invention are classified into 5 items of ① to ⑤ as shown in [Table 1] below, and each of them is rated.

Example 1: Student A's dental carving practice results were evaluated based on the items of ①②③④⑤Evaluation Criteria for “Tooth Average Dimension Table”.

① The criterion for the length evaluation of the crown is 10.5 mm, and the student's lab material was measured using the tape measure function (black arrow). This item satisfies 100% without error.

② The root mesial diameter of the crown was 8.5 mm, and the actual work of student A was 8 mm, which was 0.5 mm short, and the root diameter of the cervical region was 6.5 mm, which was insufficient by 0.5 mm. A student satisfied 90% in ②.

③ The pure snow diameter of the crown was 7.0 mm, and the actual work of student A met 100% without error, and the pure snow diameter of the cervical region met 6.0 mm, and the item ③ was 100% satisfied.

④ The evaluation standard of the alveolar line height at the mesial part is 3.5 mm, and the student's lab material 100% is satisfied without error in this item.

⑤ The evaluation standard of the alveolar line height of the centrifugal part is 2.5 mm, and the student's lab material has a alveolar line height of 2 mm and 0.5 mm, which is 90%.

Overall score of student A: B +

Student A was 100% satisfied with three areas of evaluation criteria ① ~ ⑤ according to the average tooth size, and the final evaluation was B + by sculpting two areas between 85% and 90%.

Comment to student A:

In the future, the supplementary point will be able to improve the completeness of the dental fragmentation by focusing on the dimension of the mesial heart and the height of the centrifugal alveolar part of the lacking tooth of the student A by using the illustration function and tape measure function of the dental practice program.

An embodiment of the evaluation algorithm according to the present invention is as follows.

A +: Four areas among evaluation criteria ① ~ ⑤ according to the average tooth size were 100% satisfied, and one area was more than 95% satisfactory.

A: Four areas among evaluation criteria ① ~ ⑤ according to the average tooth size were 100% satisfied, and one area was sculpted between 90% and 95%.

B +: Three areas among the evaluation criteria ① ~ ⑤ according to the average dimension of the teeth were 100% satisfied, and the two areas were sculpted between 85% and 90%.

B: Three areas among evaluation criteria ① ~ ⑤ according to the average dimension of teeth were 100% satisfied, and two areas were sculpted between 80% and 85%.

C +: Two areas among the evaluation criteria ① ~ ⑤ according to the average dimension of the teeth were 100% satisfied, and three areas were sculpted between 75% and 80%.

C: Two areas among evaluation criteria ① ~ ⑤ according to the average tooth size were 100% satisfied, and three areas were sculpted between 70-75%.

D +: One of the evaluation criteria ① ~ ⑤ according to the average tooth size was 100% satisfied, and the four areas were sculpted between 65-70%.

D: One of the evaluation criteria ① ~ ⑤ according to the average tooth size was 100% satisfied, and the four areas were satisfactory between 60-65%.

F: All of the evaluation criteria according to the average tooth size were not satisfied and were sculpted.

As described above, although described with reference to preferred embodiments of the present invention, those skilled in the art variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Or it can be carried out by modification.

10: control unit 20: memory unit
30: input unit 40: output unit
50: display unit 60: communication unit
70: camera unit

Claims (12)

In the dental carving device training system including a trainee terminal device, a manager terminal device and a server,
The trainee terminal device is a mobile communication terminal in which augmented reality is implemented, a camera unit 70 for taking a practice tooth image; a communication unit 60 including one or more modules for wireless communication; An input unit 30 for generating input data for operation control of the terminal device; An output unit 40 for generating output related to voice, time, and tactile sense of the terminal device; A display unit 50 that displays a map image on the screen so that the practice dental image can be checked; A memory unit 20 for storing various information for performing an operation and carving a tooth; And a control unit 10 for controlling the operations,
The manager terminal device is connected to the trainee terminal to review and evaluate the results of the training, and transmits a review opinion or evaluation to the trainee terminal device in the form of a message and a video,
The server establishes and manages the necessary information DB when the trainee terminal device performs the training mode, and performs it automatically, transmits the training result data of the trainee terminal device, and stores information about the transmitted training result data ( DB), it is provided so that the administrator terminal can check the information about the relevant practice data and the practice result data.
The practitioner terminal device is a dental material practice image that is actually photographed through the camera while the practitioner carves a plaster bar, and is implemented as augmented reality. 3D function that can see the teeth in three dimensions, tape measure function, video function, dental engraving system characterized in that includes listening to the course. According to claim 1,
The tooth information function includes a tooth shape, size, characteristics of the tooth surface, and a tooth carving system characterized by including the average tooth size. According to claim 1,
In the guide function, a tooth engraving system characterized in that five tooth surfaces are guided by augmented reality. According to claim 1,
The tape measure function is a dental engraving system characterized in that it is possible to measure a selected part distance for a tooth in a practice mode. According to claim 1,
A tooth fragmentation system characterized in that the guided tooth appearance is illustrated and 5 tooth surfaces are guided by augmented reality on the guide line with a 3D function. In the dental engraving system according to claim 1 or claim 5,
The practitioner terminal device is placed in a fixed state on a cradle, and dental practitioner materials such as gypsum rods or wax are disposed at a distance of about 20 to 30 cm below the practitioner terminal device to perform dental fragmentation practice. Dental Sculpture System In the dental fragmentation practice system comprising the trainee terminal device, the manager terminal device and the server according to claim 1,
The practitioner terminal U executes the application after installing the training application (S100);
Selecting a tooth to be practiced after the application is executed (step S200);
When the tooth selection is performed, a practice mode entry step (step S300) in which a function including a tooth guideline, an illustration, a 3D, a tape measure function is displayed on the basis of augmented reality on the practice mode;
After entering the practice mode, the guideline, illustration, 3D, and tape measure function overlap with the practice image being taken through the camera while the practitioner actually engraves the gypsum rod in the practice mode. Sculpture practice step (S400 step) characterized in that it comprises a tooth carving practice method The method of claim 7,
Comprising the step of comparing the reference value of the dental practice image evaluation criteria table and the dental practice image taken through the camera unit 70 of the practitioner terminal in the dental sculpture practice step (step S400). The method of claim 8,
The practice image and the reference value overlap the five teeth (pure cotton, lingual surface, mesial surface, centrifugal surface, cutting edge) and compare the errors, characterized in that the tooth fragment practice method The method of claim 7 or 8,
The practice image and the reference value overlap with 5 teeth (pure cotton, lingual surface, mesial surface, centrifugal surface, cutting edge), and the part of the error where the practice tooth does not match the reference value is displayed as a numerical value or a percentage so that the practice of tooth fragmentation is completed. If it does not reach the reference value, the dental carving practice method is characterized in that the procedure can be terminated if the target predetermined time has elapsed even if the reference value is not reached even if the reference value has not been reached. The method of claim 7,
Based on the training image, 3D objects for tooth fragments of the trainee terminal who completed the training generate teeth fragment training data, and the data is DB and transmitted to the administrator terminal along with the practitioner's information data to complete the training (S500) Step) dental carving practice method comprising a The method of claim 11,
The manager terminal evaluates the tooth fragment image transmitted from the operator terminal and adds a comment to the training result.

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