A method and system for generating an electronic design order for a removable partial denture

Abstract

This invention relates to the field of removable partial dentures, and more particularly to a method and system for generating an electronic design sheet for removable partial dentures. The method includes: acquiring an image of a paper design sheet for a target user; mapping each tooth onto an electronic design sheet based on the image; acquiring partial images from the image including the abutment, clasps, base, and all teeth; identifying the position of at least one artificial tooth to be installed in the partial images and marking it in a first intermediate electronic design sheet; mapping the outlines of the abutment, clasps, and base onto the first intermediate electronic design sheet; designing the connectors and drawing them in a second intermediate electronic design sheet; and optimizing the design through manual modification to obtain the electronic design sheet for the removable partial denture. This method enables the rapid and accurate generation of the electronic design sheet for removable partial dentures.

Description

[0001] This application is a divisional application of application number 202211435966.9, filed on November 16, 2022, entitled "Method and System for Converting Paper Design Sheet of Removable Partial Denture into Electronic Design Sheet", which is incorporated herein by reference in its entirety. Technical Field

[0002] This invention relates to the field of removable partial dentures, and more particularly to a method and system for generating an electronic design sheet for removable partial dentures. Background Technology

[0003] Removable partial dentures are one of the main methods for treating tooth loss in clinical dentistry. In clinical practice, because each patient's condition is different, clinicians need to design different denture plans for each patient.

[0004] Based on practical application, most medical institutions still rely on doctors' hand-drawn paper design sheets to describe their removable partial denture designs. For experienced doctors, hand-drawing allows for quick and accurate articulation of their designs. However, on the other hand, patients often struggle to intuitively understand their upcoming treatment plan, and less experienced workers are prone to misunderstanding the design sheets. Furthermore, in today's information age, paper design sheets have increasingly obvious drawbacks, such as difficulty in preservation, statistical analysis, and other forms of data collection. In recent years, the importance of electronic design for removable partial dentures has been gradually recognized by some medical research institutions. The advantages of electronic design sheets for removable partial dentures include standardized design presentation, eliminating misunderstandings among workers using the same design sheet, and facilitating automated production processes.

[0005] Currently, apart from the method of having professionals manually draw the clinician's paper design sheet on the computer to generate an electronic design sheet, there is no automated solution. Moreover, due to the numerous and complex parts of removable partial dentures, the amount of work clinicians do when generating electronic design sheets using computers is far greater than that of hand-drawing paper design sheets, which has significant limitations in clinical treatment. Therefore, it has not been widely accepted and applied.

[0006] Therefore, it is essential to quickly convert paper design sheets for removable partial dentures into electronic design sheets. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a method and system for converting paper design sheets of removable partial dentures into electronic design sheets.

[0008] The technical solution of the present invention for converting a paper design sheet for a removable partial denture into an electronic design sheet is as follows: Obtain an image of a paper design sheet for a removable partial denture designed for a target user; identify the tooth position and location of each tooth of the target user in the image; map the tooth onto an electronic design sheet based on the tooth position and location of any tooth in the image; continue mapping each tooth onto the electronic design sheet to obtain a first intermediate electronic design sheet. Obtain local images from the image, including the brace, clasp, base, and all teeth; The local image is identified to determine at least one tooth position of the artificial tooth to be installed and marked in the first intermediate electronic design sheet. The local image is also identified to obtain the outline of the support, the outline of the clasp, and the outline of the base. The outline of the support, the outline of the clasp, and the outline of the base are mapped onto the first intermediate electronic design sheet to obtain the second intermediate electronic design sheet. Design the connector based on the second intermediate electronic design sheet and draw it in the second intermediate electronic design sheet to obtain the third intermediate electronic design sheet; The third intermediate electronic design sheet is optimized by manual modification to obtain the electronic design sheet for removable partial dentures.

[0009] The beneficial effects of the method for converting a paper design sheet for a removable partial denture into an electronic design sheet according to the present invention are as follows: Based on the paper design sheet of the removable partial denture, the electronic design sheet of the removable partial denture can be determined quickly and accurately. Furthermore, the quality and reliability of the electronic design sheet of the removable partial denture can be further improved by "redesigning the connector" and "optimizing through manual modification".

[0010] Based on the above solution, the method for converting a paper design sheet for a removable partial denture into an electronic design sheet according to the present invention can be further improved as follows.

[0011] Further, the local image is identified to determine the tooth position of at least one artificial tooth to be installed, including: The local image is identified to obtain the position of at least one missing tooth marker in the local image. Based on the position of each missing tooth marker in the local image, the tooth position to which each missing tooth belongs is marked in the first intermediate electronic design sheet. From the tooth position to which each missing tooth belongs, at least one tooth position to which an artificial tooth is to be installed is determined.

[0012] Furthermore, mapping the contours of the support, the retaining ring, and the base onto the first intermediate electronic design sheet includes: Based on the region of the support's outline in the local image, the region of the retainer in the local image, and the region of the base in the local image, the outlines of the support, the retainer, and the base are mapped onto the first intermediate electronic design sheet.

[0013] Furthermore, identifying the position of each tooth of the target user and the location of each tooth in the image from the image includes: Using a trained YOLOv5 network, the position of each tooth of the target user and the location of each tooth in the image are identified from the image.

[0014] Furthermore, it also includes drawing the artificial teeth located at each tooth position to be installed on the electronic design sheet for removable partial dentures.

[0015] The technical solution of the system for converting paper design sheets of removable partial dentures into electronic design sheets according to the present invention is as follows: It includes a first recognition mapping module, a local image acquisition module, a second recognition mapping module, a design drawing module, and an optimization module; The first identification and mapping module is used to: acquire an image of a paper design sheet for a removable partial denture designed for a target user; identify the tooth position and location of each tooth of the target user in the image; and map the tooth onto an electronic design sheet based on the tooth position and location of the tooth in the image, until each tooth is mapped onto the electronic design sheet, thereby obtaining a first intermediate electronic design sheet. The local image acquisition module is used to: acquire local images from images including the brace, clasp, base, and all teeth; The second recognition and mapping module is used to: recognize the local image, determine at least one tooth position of the artificial tooth to be installed and mark it in the first intermediate electronic design sheet, and recognize the local image to obtain the outline of the support, the outline of the clasp and the outline of the base, and map the outline of the support, the outline of the clasp and the outline of the base onto the first intermediate electronic design sheet to obtain the second intermediate electronic design sheet. The design and drawing module is used to: design the connector according to the second intermediate electronic design sheet, and draw it in the second intermediate electronic design sheet to obtain the third intermediate electronic design sheet; The optimization module is used to: optimize the third intermediate electronic design sheet by manual modification to obtain the electronic design sheet for removable partial dentures.

[0016] The beneficial effects of the system for converting paper design sheets for removable partial dentures into electronic design sheets according to the present invention are as follows: Based on the paper design sheet of the removable partial denture, the electronic design sheet of the removable partial denture can be determined quickly and accurately. Furthermore, the quality and reliability of the electronic design sheet of the removable partial denture can be further improved by "redesigning the connector" and "optimizing through manual modification".

[0017] Based on the above solution, the system for converting a paper design sheet for a removable partial denture into an electronic design sheet according to the present invention can be further improved as follows.

[0018] Furthermore, the second identification mapping module is also specifically used for: The local image is identified to obtain the position of at least one missing tooth marker in the local image. Based on the position of each missing tooth marker in the local image, the tooth position to which each missing tooth belongs is marked in the first intermediate electronic design sheet. From the tooth position to which each missing tooth belongs, at least one tooth position to which an artificial tooth is to be installed is determined.

[0019] Furthermore, the second identification mapping module is also specifically used for: Based on the region of the support's outline in the local image, the region of the retainer in the local image, and the region of the base in the local image, the outlines of the support, the retainer, and the base are mapped onto the first intermediate electronic design sheet.

[0020] Furthermore, the first identification mapping module is also specifically used for: Using a trained YOLOv5 network, the position of each tooth of the target user and the location of each tooth in the image are identified from the image.

[0021] Furthermore, it also includes a drawing module, which is used for: On the electronic design sheet for removable partial dentures, draw the artificial teeth located at each tooth position to be installed.

[0022] The present invention provides a storage medium storing instructions that, when read by a computer, cause the computer to execute any of the above-mentioned methods for converting a paper design sheet for a removable partial denture into an electronic design sheet.

[0023] An electronic device according to the present invention includes a processor and the above-described storage medium, wherein the processor executes instructions in the storage medium. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating a method for converting a paper design sheet for a removable partial denture into an electronic design sheet according to an embodiment of the present invention. Figure 2This is a schematic diagram of the system for converting a paper design sheet for a removable partial denture into an electronic design sheet, according to an embodiment of the present invention. Detailed Implementation

[0025] like Figure 1 As shown in the figure, a method for converting a paper design sheet for a removable partial denture into an electronic design sheet according to an embodiment of the present invention includes the following steps: S1. Obtain an image of a paper design sheet for a removable partial denture designed for a target user. Identify the tooth position and location of each tooth in the image. Based on the tooth position and location of any tooth in the image, map the tooth onto the electronic design sheet until each tooth is mapped onto the electronic design sheet, thus obtaining a first intermediate electronic design sheet. The mapping of any tooth onto the electronic design sheet, based on its position and location in the image, is implemented as follows: The electronic design form contains pre-arranged tooth patterns, and the position and location of each tooth are known. After detecting the position and location of each tooth from the image of the paper design form for the removable partial denture designed for the target user, the position and coordinates of each tooth can be mapped to the electronic design form. The position of each tooth can be represented in coordinate form. For example, a first two-dimensional coordinate system is established on the electronic design form to calculate the coordinates corresponding to the position and location of each tooth. A second two-dimensional coordinate system is established on the image of the paper design form for the removable partial denture designed for the target user to obtain the coordinates corresponding to the position and location of each tooth. By establishing the transformation relationship between the first two-dimensional coordinate system and the second two-dimensional coordinate system, each tooth is mapped to the electronic design form.

[0026] The process of obtaining images of the paper design sheet for the removable partial denture designed for the target user is as follows: The paper design form for the removable partial denture designed for the target user is scanned using a scanner to obtain an image of the paper design form for the target user; alternatively, the paper design form for the removable partial denture designed for the target user is photographed to obtain an image of the paper design form for the target user.

[0027] The specific process of identifying the position of each tooth of the target user and the location of each tooth in the image is as follows: Using a trained YOLOv5 network, the position of each tooth of the target user and its location in the image can be identified. Other deep learning models can also be selected for training depending on the actual situation, and the trained deep learning models can be used to recognize images.

[0028] S2. Obtain a local image from the image containing the apron, clasp, base, and all teeth; S3. Recognize the local image, determine the tooth position of at least one artificial tooth to be installed and mark it in the first intermediate electronic design sheet, and recognize the local image to obtain the outline of the support, the outline of the clasp and the outline of the base, and map the outline of the support, the outline of the clasp and the outline of the base onto the first intermediate electronic design sheet to obtain the second intermediate electronic design sheet. The specific method for marking the tooth positions to be installed with artificial teeth in the first intermediate electronic design sheet can be set according to the actual situation, such as graphic marking, text marking, or symbol marking.

[0029] S4. Design the connector based on the second intermediate electronic design sheet and draw it in the second intermediate electronic design sheet to obtain the third intermediate electronic design sheet; The design of the connector is based on theoretical knowledge of connector design in oral medicine, which will not be elaborated here.

[0030] S5. Optimize the third intermediate electronic design sheet through manual modification to obtain the electronic design sheet for the removable partial denture. The optimization includes adjusting for errors caused by identification errors, manually adjusting the shape of the base and connectors, and modifying it according to new requirements from the target user. Based on the paper design sheet of the removable partial denture, this invention can quickly and accurately determine the electronic design sheet of the removable partial denture. Furthermore, by "redesigning the connector" and "optimizing through manual modification", the quality and reliability of the electronic design sheet of the removable partial denture are further improved.

[0031] Optionally, in the above technical solution, step S3 involves recognizing the local image to determine the tooth position of at least one artificial tooth to be installed, including: S30. Recognize the local image to obtain the position of at least one missing tooth marker in the local image, and mark the tooth position to which each missing tooth belongs in the first intermediate electronic design sheet according to the position of each missing tooth marker in the local image, and determine at least one tooth position to which an artificial tooth is to be installed from all the tooth positions to which the missing teeth belong.

[0032] Specifically, the trained YOLOv5 network is used to identify local images and obtain the location of at least one missing tooth in the local image. It should be noted that the trained YOLOv5 network here is the same as the trained YOLOv5 network used above to identify the tooth position and location of each tooth in the image of the target user. The only difference is the sample set used for training.

[0033] Among these, missing tooth marking refers to the markings drawn by the dentist on a paper design sheet to identify missing teeth, such as graphic markings, text markings, or symbol markings. Graphic markings may specifically include double horizontal lines. Based on theoretical knowledge of oral medicine, corresponding selection criteria are obtained, and at least one tooth position to be fitted with an artificial tooth is determined from all the tooth positions corresponding to the missing teeth.

[0034] Optionally, in the above technical solution, in step S3, mapping the contours of the support, the retaining ring, and the base onto the first intermediate electronic design sheet includes: S31. Based on the regions of the support's contour, the clasp's contour, and the base's contour in the local image, map these contours onto the first intermediate electronic design sheet. The specific process is as follows: 1) The process of mapping the support profile onto the first intermediate electronic design sheet is as follows: The center point of the tooth is calculated using the coordinates of the tooth where the abutment is located; the center point of the abutment is calculated based on the predicted abutment area; then the orientation of the abutment relative to the tooth is calculated based on both, and the abutment is graphically marked in the same orientation of the same tooth position in the electronic design sheet.

[0035] 2) The process of mapping the outline of the retaining ring onto the first intermediate electronic design sheet is as follows: Find the center point of the tooth by using the coordinates of the tooth where the clasp is located; divide the circumference around the center point into 36 directions, calculate whether each direction intersects with the predicted area of ​​the clasp, and then obtain the directional range of the clasp around the tooth, and mark the clasp graphically in the same directional range of the same tooth position in the electronic design sheet. 3) The process of mapping the silhouette of the baseplate onto the first intermediate electronic design sheet is as follows: Based on the predicted area of ​​each denture base, find all the tooth positions included in that denture base, locate the tooth in the middle position, and then find the center point of that tooth; divide the circumference around the center point into 18 directions, calculate whether each direction intersects with the predicted area of ​​the denture base, and then obtain the directional range of the denture base around that tooth. Based on the directional range, determine whether the denture base is designed as lingual unilateral or lingual buccal, and then add the graphic mark of the denture base to the lingual unilateral or lingual buccal range of the tooth in the same position in the electronic design sheet.

[0036] S6. On the electronic design sheet for removable partial dentures, draw the artificial teeth located at each tooth position to be installed.

[0037] In another embodiment, it includes: S100: Map the tooth positions and tooth numbers from the paper design sheet to the electronic design sheet: This section utilizes a deep learning-based detection network to determine the position and corresponding tooth number of each tooth on the paper dental design sheet, enabling accurate mapping between these teeth and the corresponding teeth on the electronic design sheet. In this step, the invention selects the YOLOv5 network architecture for object detection, as this neural network can complete this relatively simple task with minimal computational resources. During the training of the neural network model, data is sourced from electronic dental design sheets generated by various medical institutions, including hospitals and clinics, from actual clinical dental practices. These sheets are uploaded as images through scanning and photography, and then subjected to data augmentation processes such as scaling, cropping, and noise addition.

[0038] S101. Narrowing the region of interest: After completing the tooth detection on the paper design sheet, calculate the coordinates of the top, bottom, left, and rightmost teeth, and expand them outward by a distance of 1.5 times the side length of the largest tooth. The resulting range is set as the region of interest in the image. The image outside the range is cropped, and the reduced region of interest is used for subsequent tasks.

[0039] S102. Detecting missing teeth in paper design sheet images: This part uses a deep learning-based detection network to detect each missing tooth marked by the dentist in a paper design sheet image. In this step, the invention also chooses the YOLOv5 network structure for target detection. Missing teeth are typically marked with double or multiple lines on the design sheet, and this neural network can complete the detection task with minimal computational resources. S103. Segment the support, clasp, and base from the paper design single image: This section utilizes a deep learning-based instance segmentation network to segment the denture's rests, clasps, and base from a single image of a paper design. In this step, the invention selects Mask R... CNN serves as the basic segmentation network, and a transformer module is added before each downsampling of the neural network to increase the neural network's ability to capture positional information in the image, which is beneficial for learning relevant information near the teeth.

[0040] Among them, the mask areas of the supports and clasps are relatively small, so they need to be given higher weights in training, both receiving a weight of 3 times, while the baseplate receives a weight of 1 time. The data masks were manually drawn by professional annotators and reviewed by professional clinicians.

[0041] S104. Map the positions of the support, retaining ring, and base to the electronic design sheet, as detailed above, and will not be repeated here.

[0042] S105. Draw the connector and map it onto the electronic design sheet.

[0043] S106. Determine the artificial teeth: Teeth located within the denture base area and identified as missing teeth in the paper design image are the artificial tooth positions to be constructed. In the electronic design form, these positions are marked with two curves parallel to the dental arch curve that overlap the tooth pattern, and curves located on the same denture base are connected.

[0044] S107, Manual Modification: After the computer automatically converts the paper design sheet to the electronic design sheet, the professional technician needs to be able to modify and edit each component of the denture in the generated electronic design sheet, so as to finally complete a reliable electronic design sheet for the removable partial denture.

[0045] This invention automates the conversion of paper design forms into electronic design forms. Previously, such conversion required manual input of paper design forms from clinicians by professional technicians, which was time-consuming, labor-intensive, and inaccurate. This patent can scan or photograph paper design forms and identify each component of the denture within one second, mapping and automatically generating them in the electronic design form.

[0046] In the above embodiments, although the steps are numbered S1, S2, etc., they are only specific embodiments given in this application. Those skilled in the art can adjust the execution order of S1, S2, etc. according to the actual situation, which is also within the protection scope of this invention. It can be understood that in some embodiments, some or all of the above embodiments may be included.

[0047] like Figure 2 As shown, a system 200 for converting a paper design sheet for a removable partial denture into an electronic design sheet according to an embodiment of the present invention includes a first recognition and mapping module 210, a partial image acquisition module 220, a second recognition and mapping module 230, a design drawing module 240, and an optimization module 250. The first identification and mapping module 210 is used to: acquire an image of a paper design sheet for a removable partial denture designed for a target user, identify the tooth position and location of each tooth of the target user from the image, and map the tooth onto an electronic design sheet based on the tooth position and location of the tooth in the image, until each tooth is mapped onto an electronic design sheet, thereby obtaining a first intermediate electronic design sheet. The local image acquisition module 220 is used to: acquire local images from an image that include the brace, clasp, base, and all teeth; The second recognition and mapping module 230 is used to: recognize the local image, determine the tooth position of at least one artificial tooth to be installed and mark it in the first intermediate electronic design sheet, and recognize the local image to obtain the outline of the support, the outline of the clasp and the outline of the base, and map the outline of the support, the outline of the clasp and the outline of the base onto the first intermediate electronic design sheet to obtain the second intermediate electronic design sheet. The design and drawing module 240 is used to: design the connector according to the second intermediate electronic design sheet, and draw it in the second intermediate electronic design sheet to obtain the third intermediate electronic design sheet; The optimization module 250 is used to: optimize the third intermediate electronic design sheet through manual modification to obtain the electronic design sheet for removable partial dentures.

[0048] Based on the paper design sheet of the removable partial denture, this invention can quickly and accurately determine the electronic design sheet of the removable partial denture. Furthermore, by "redesigning the connector" and "optimizing through manual modification", the quality and reliability of the electronic design sheet of the removable partial denture are further improved.

[0049] Optionally, in the above technical solution, the second identification mapping module 240 is further specifically used for: The local image is identified to obtain the position of at least one missing tooth marker in the local image, and the tooth position to which each missing tooth belongs is marked in the first intermediate electronic design sheet according to the position of each missing tooth marker in the local image. At least one tooth position to which an artificial tooth is to be installed is determined from all the tooth positions to which the missing teeth belong.

[0050] Optionally, in the above technical solution, the second identification mapping module is further specifically used for: Based on the regions of the support profile, the clasp profile, and the base profile in the local image, the profiles of the support, the clasp profile, and the base profile are mapped onto the first intermediate electronic design sheet. Optionally, in the above technical solution, the first identification mapping module 210 is further specifically used for: Using a trained YOLOv5 network, the position of each tooth of the target user and the location of each tooth in the image are identified from the image.

[0051] Optionally, the above technical solution also includes a drawing module, which is used for: On the electronic design sheet for removable partial dentures, draw the artificial teeth located at each tooth position to be installed.

[0052] The parameters and steps of each unit module in the system 200 for converting a paper design sheet for a removable partial denture into an electronic design sheet according to the present invention can be referred to the parameters and steps in the embodiments of the method for converting a paper design sheet for a removable partial denture into an electronic design sheet described above, and will not be repeated here.

[0053] An embodiment of the present invention provides a storage medium storing instructions that, when read by a computer, enable the computer to execute the method described above for converting a paper design sheet for a removable partial denture into an electronic design sheet.

[0054] An electronic device according to an embodiment of the present invention includes a processor and the aforementioned storage medium. The processor executes instructions in the storage medium. The electronic device may be a computer, a mobile phone, or the like.

[0055] Those skilled in the art will know that this invention can be implemented as a system, method, or computer program product.

[0056] Therefore, this disclosure can be implemented in the following forms: it can be entirely hardware, entirely software (including firmware, resident software, microcode, etc.), or a combination of hardware and software, generally referred to herein as a "circuit," "module," or "system." Furthermore, in some embodiments, the invention can also be implemented as a computer program product in one or more computer-readable media, the computer-readable medium containing computer-readable program code. Any combination of one or more computer-readable media can be used. Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable storage media can be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM). ROM, optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for generating an electronic design sheet for a removable partial denture, characterized in that, include: Obtain an image of a paper design sheet for a removable partial denture designed for a target user; identify the tooth position and location of each tooth of the target user in the image; map the tooth onto an electronic design sheet based on the tooth position and location of any tooth in the image; continue mapping each tooth onto the electronic design sheet to obtain a first intermediate electronic design sheet. Obtain local images from the image, including the brace, clasp, base, and all teeth; The local image is identified to determine at least one tooth position for which an artificial tooth to be installed and marked in the first intermediate electronic design sheet. The local image is then identified to obtain the outline of the support, the outline of the clasp, and the outline of the base, including: segmenting the support, the clasp, and the base in the local image, and mapping the outlines of the support, the clasp, and the base onto the first intermediate electronic design sheet to obtain a second intermediate electronic design sheet. Design the connector based on the second intermediate electronic design sheet and draw it in the second intermediate electronic design sheet to obtain the third intermediate electronic design sheet; The third intermediate electronic design sheet is optimized by manual modification to obtain the electronic design sheet for removable partial dentures.

2. The method according to claim 1, characterized in that, Identifying the local image to determine the position of at least one artificial tooth to be installed includes: The local image is identified to obtain the position of at least one missing tooth marker in the local image. Based on the position of each missing tooth marker in the local image, the tooth position to which each missing tooth belongs is marked in the first intermediate electronic design sheet. At least one tooth position to which an artificial tooth is to be installed is determined from all the tooth positions to which the missing teeth belong.

3. The method according to claim 1, characterized in that, Mapping the contours of the support, the retaining ring, and the base onto the first intermediate electronic design sheet includes: Based on the region of the support's outline in the local image, the region of the retainer in the local image, and the region of the base in the local image, the outlines of the support, the retainer, and the base are mapped onto the first intermediate electronic design sheet.

4. The method according to claim 1, characterized in that, Identifying the position of each tooth of the target user from the image and the location of each tooth in the image includes: Using a trained YOLOv5 network, the position of each tooth of the target user and the location of each tooth in the image are identified from the image.

5. The method according to any one of claims 1 to 4, characterized in that, Also includes: On the electronic design sheet for removable partial dentures, draw the artificial teeth located at each tooth position to be installed.

6. A system for generating an electronic design sheet for removable partial dentures, characterized in that, It includes a first recognition mapping module, a local image acquisition module, a second recognition mapping module, a design drawing module, and an optimization module; The first identification and mapping module is used to: acquire an image of a paper design sheet for a removable partial denture designed for a target user; identify the tooth position and location of each tooth of the target user in the image; and map the tooth onto an electronic design sheet based on the tooth position and location of the tooth in the image, until each tooth is mapped onto the electronic design sheet, thereby obtaining a first intermediate electronic design sheet. The local image acquisition module is used to: acquire local images from images including the brace, clasp, base, and all teeth; The second recognition and mapping module is used to: recognize the local image, determine at least one tooth position of the artificial tooth to be installed and mark it in the first intermediate electronic design sheet, and recognize the local image to obtain the outline of the support, the outline of the clasp and the outline of the base, including: segmenting the support, the clasp and the base in the local image, and mapping the outline of the support, the outline of the clasp and the outline of the base onto the first intermediate electronic design sheet to obtain the second intermediate electronic design sheet; The design and drawing module is used to: design the connector according to the second intermediate electronic design sheet, and draw it in the second intermediate electronic design sheet to obtain the third intermediate electronic design sheet; The optimization module is used to: optimize the third intermediate electronic design sheet by manual modification to obtain the electronic design sheet for removable partial dentures.

7. The system according to claim 6, characterized in that, The second identification mapping module is also specifically used for: The local image is identified to obtain the position of at least one missing tooth marker in the local image. Based on the position of each missing tooth marker in the local image, the tooth position to which each missing tooth belongs is marked in the first intermediate electronic design sheet. At least one tooth position to which an artificial tooth is to be installed is determined from all the tooth positions to which the missing teeth belong.

8. The system according to claim 6, characterized in that, The second identification mapping module is also specifically used for: Based on the region of the support's outline in the local image, the region of the retainer in the local image, and the region of the base in the local image, the outlines of the support, the retainer, and the base are mapped onto the first intermediate electronic design sheet.

9. The system according to claim 6, characterized in that, The first identification mapping module is also specifically used for: Using a trained YOLOv5 network, the position of each tooth of the target user and the location of each tooth in the image are identified from the image.

10. The system according to any one of claims 6 to 9, characterized in that, It also includes a drawing module, which is used for: On the electronic design sheet for removable partial dentures, draw the artificial teeth located at each tooth position to be installed.

Images