Orthodontic appliance modeling method, system, computer device, and storage medium

Abstract

This application belongs to the field of orthodontic appliance modeling technology, and relates to an orthodontic appliance modeling method, system, computer equipment, and storage medium, comprising: acquiring a user's three-dimensional oral cavity data; constructing a three-dimensional occlusal model of the user based on the three-dimensional oral cavity data; adjusting the three-dimensional occlusal model according to preset target correction parameters to obtain a target jaw position model of the user; constructing a guide rail reference plane based on the three-dimensional occlusal model and the target jaw position model; determining guide rail parameters based on the three-dimensional occlusal model and the guide rail reference plane; and generating a guide rail-type orthodontic appliance model of the user based on the guide rail parameters and the three-dimensional occlusal model. This application improves the modeling accuracy of existing orthodontic appliances with jaw plates.

Description

Technical Field

[0001] This application relates to the field of orthodontic appliance modeling technology, and in particular to an orthodontic appliance modeling method, system, computer equipment and storage medium. Background Technology

[0002] With the rapid development of digital technology in orthodontics, the clinical requirements for precision and personalization in orthodontic treatment are constantly increasing. Digital modeling, as the core link in the fabrication of orthodontic appliances, directly affects the treatment effect due to its design level. Orthodontic appliances with jaw plates can simultaneously achieve jaw position induction and tooth correction, making them a common solution for the clinical treatment of jaw deformities accompanied by malocclusion.

[0003] Currently, the digital modeling of this type of orthodontic appliance is mostly done using conventional orthodontic software. Generally, basic dental data is obtained through intraoral scanning, and a simple combined model of the jaw plate and the appliance body is built. The modeling process mainly focuses on designing tooth alignment parameters, and only basic occlusal support morphology adaptation is done on the jaw plate. After completion, the model is directly output for processing and manufacturing.

[0004] However, this type of modeling method lacks precision and the jaw plate lacks a targeted guiding structure design, which can easily lead to a disconnect between jaw position induction and the orthodontic process, making it difficult to meet the actual clinical orthodontic treatment needs.

[0005] In view of the above, this application is hereby submitted. Summary of the Invention

[0006] The purpose of this application is to provide an orthodontic appliance modeling method, system, computer equipment, and storage medium to solve the technical problems of insufficient modeling accuracy of existing orthodontic appliances with jaw plates, which leads to poor jaw position guidance and tooth correction disconnection.

[0007] To address the aforementioned technical problems, this application provides an orthodontic appliance modeling method, employing the following technical solution: Obtain the user's oral cavity three-dimensional data, and construct the user's bite three-dimensional model based on the oral cavity three-dimensional data; The occlusal three-dimensional model is adjusted according to the preset target correction parameters to obtain the user's target jaw position model; Based on the occlusal 3D model and the target jaw position model, construct the guide rail reference plane; Based on the three-dimensional model of the bite and the guide rail reference surface, determine the guide rail parameters; Based on the guide rail parameters and the occlusal 3D model, a guide rail-type orthodontic appliance model is generated for the user.

[0008] Furthermore, generating the user's guide-type orthodontic appliance model based on the guide rail parameters and the occlusal 3D model includes: The guide rail type jaw plate is simulated based on the guide rail parameters to obtain the guide rail type jaw plate model; The guide rail type orthodontic appliance model is generated based on the guide rail type jaw plate model and the occlusal three-dimensional model.

[0009] Furthermore, generating the guide-type orthodontic appliance model based on the guide-type jaw plate model and the occlusal three-dimensional model includes: Based on the occlusal 3D model, an initial orthodontic appliance model for the user is constructed; Based on the initial orthodontic appliance model and the guide rail chin plate model, the guide rail orthodontic appliance model is generated.

[0010] Furthermore, determining the guide rail parameters based on the three-dimensional meshing model and the guide rail reference surface includes: Based on the occlusal 3D model, the occlusal surface of the user is determined, and the height parameter between the occlusal surface and the guide rail reference surface is calculated. Based on the occlusal 3D model, the posterior tooth spacing parameters of the user and the curvature of the movement trajectory between the occlusal 3D model and the target jaw position model are obtained; The guide rail parameters are determined based on the posterior tooth spacing parameters, the height parameters, and the curvature.

[0011] Furthermore, the step of constructing the guide rail reference plane based on the occlusal three-dimensional model and the target jaw position model includes: Based on the occlusal 3D model, the baseline of the user's posterior tooth region is calibrated; The correction trajectory between the occlusal 3D model and the target jaw position model is simulated, and the guide rail reference plane is constructed based on the posterior tooth region baseline and the correction trajectory.

[0012] Furthermore, adjusting the three-dimensional occlusal model according to preset target correction parameters to obtain the user's target jaw position model includes: In the occlusal three-dimensional model, the spatial positions of the maxillary and mandibular posterior tooth regions are determined; Based on the target orthodontic parameters and the spatial position of the maxillary and mandibular posterior teeth, the occlusal three-dimensional model is adjusted to obtain the target jaw position model.

[0013] Furthermore, the oral cavity three-dimensional data includes dentition occlusion data, jawbone data, and occlusal defect points. The step of constructing a three-dimensional occlusal model based on the oral cavity three-dimensional data includes: Based on the dental occlusion data, the three-dimensional morphology of the user's teeth is reconstructed; Based on the jawbone data, the occlusal state of the three-dimensional morphology of the teeth is adjusted to obtain an initial three-dimensional occlusal model. Based on the occlusal defect points, the initial occlusal 3D model is marked to obtain the occlusal 3D model.

[0014] To address the aforementioned technical problems, this application also provides an orthodontic appliance modeling system, which employs the following technical solution: An orthodontic appliance modeling system, comprising: The acquisition module is used to acquire the user's oral cavity three-dimensional data and construct the user's bite three-dimensional model based on the oral cavity three-dimensional data; The adjustment module is used to adjust the three-dimensional occlusal model according to the preset target correction parameters to obtain the user's target jaw position model; The construction module is used to construct the guide rail reference plane based on the occlusal 3D model and the target jaw position model; The determination module is used to determine the guide rail parameters based on the three-dimensional meshing model and the guide rail reference surface; The generation module is used to generate a guide rail-type orthodontic appliance model for the user based on the guide rail parameters and the occlusal 3D model.

[0015] To address the aforementioned technical problems, this application also provides a computer device that employs the following technical solution: A computer device includes a memory and a processor, the memory storing computer-readable instructions, the processor executing the computer-readable instructions to implement the steps of the orthodontic appliance modeling method as described above.

[0016] To address the aforementioned technical problems, this application also provides a computer-readable storage medium, employing the technical solution described below: A computer-readable storage medium storing computer-readable instructions that, when executed by a processor, implement the steps of the orthodontic appliance modeling method as described above.

[0017] Compared with the prior art, this application has the following main advantages: The orthodontic appliance modeling method disclosed in this application obtains the user's three-dimensional oral cavity data and constructs a three-dimensional occlusal model, which can restore the user's actual occlusal state and anatomical features of the posterior teeth, allowing subsequent design to conform to the user's actual oral condition. Secondly, the occlusal three-dimensional model is adjusted to obtain a target jaw position model, which clarifies the jaw position target for orthodontic treatment and provides a clear direction for the design of the guide rail reference surface. Next, the guide rail reference surface is constructed by combining the occlusal three-dimensional model and the target jaw position model, ensuring that the reference surface takes into account both the user's oral anatomy and jaw position guidance requirements, adapting to the user's personalized oral condition. Then, the guide rail parameters are determined by combining the occlusal three-dimensional model and the guide rail reference surface, ensuring that the size and angle of the guide rail conform to the user's posterior teeth region, avoiding mismatch between the guide rail structure and the user's oral cavity. Finally, an appliance model is generated based on the guide rail parameters and the occlusal three-dimensional model, allowing the appliance to conform to the user's oral occlusal state, enabling the guide rail to effectively guide the mandible to the target jaw position, ensuring that orthodontic treatment and jaw position guidance are synchronized, avoiding disconnection between the two, and achieving simultaneous jaw position movement and orthodontic treatment, thus improving the actual effect of jaw position guidance. Attached Figure Description

[0018] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an exemplary system architecture diagram to which this application can be applied; Figure 2 This is a flowchart of an embodiment of the orthodontic appliance modeling method according to this application; Figure 3 This is a schematic diagram of a tooth according to an embodiment of this application; Figure 4 This is a schematic diagram of a guide rail type orthodontic appliance provided according to an embodiment of this application; Figure 5 This is a schematic diagram of a structure of an embodiment of the orthodontic appliance modeling system according to this application; Figure 6 This is a schematic diagram of the structure of one embodiment of the computer device according to this application. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the system architecture 100 may include a first terminal device 101, a second terminal device 102, a third terminal device 103, a network 104, and a server 105. The network 104 serves as a medium for providing communication links between the first terminal device 101, the second terminal device 102, the third terminal device 103, and the server 105. The network 104 may include various connection types, such as wired or wireless communication links, or fiber optic cables, etc.

[0024] Users can use the first terminal device 101, the second terminal device 102, and the third terminal device 103 to interact with the server 105 via the network 104 to receive or send messages, etc. Various communication client applications can be installed on the first terminal device 101, the second terminal device 102, and the third terminal device 103, such as web browser applications, shopping applications, search applications, instant messaging tools, email clients, social platform software, etc.

[0025] The first terminal device 101, the second terminal device 102, and the third terminal device 103 can be various electronic devices with displays and support web browsing, including but not limited to smartphones, tablets, e-book readers, MP3 (Moving Picture Experts Group Audio Layer Ⅲ) players, MP4 (Moving Picture Experts Group Audio Layer IV) players, laptops, and desktop computers, etc.

[0026] Server 105 can be a server that provides various services, such as a backend server that supports the pages displayed on the first terminal device 101, the second terminal device 102, and the third terminal device 103.

[0027] It should be noted that the orthodontic appliance modeling method provided in this application embodiment is generally executed by a terminal device, and correspondingly, the orthodontic appliance modeling system is generally set in the terminal device.

[0028] It should be understood that Figure 1 The number of terminal devices, networks, and servers shown is merely illustrative. Depending on implementation needs, any number of terminal devices, networks, and servers can be included.

[0029] Continue to refer to Figure 2 A flowchart illustrating an embodiment of the orthodontic appliance modeling method according to this application is shown. The orthodontic appliance modeling method includes the following steps: Step S201: Obtain the user's oral cavity three-dimensional data, and construct the user's bite three-dimensional model based on the oral cavity three-dimensional data.

[0030] In this embodiment, the orthodontic appliance modeling method runs on an electronic device (e.g., Figure 1 The terminal device shown can send or receive data via wired or wireless connection. It should be noted that the aforementioned wireless connection methods may include, but are not limited to, 3G / 4G / 5G connections, Wi-Fi connections, Bluetooth connections, WiMAX connections, Zigbee connections, UWB (ultra-wide band) connections, and other currently known or future wireless connection methods.

[0031] In this embodiment, the user's three-dimensional oral cavity data can be acquired using an intraoral scanner, a jaw position recorder, and cone-beam computed tomography (CBCT) equipment. The three-dimensional oral cavity data includes the user's dentition occlusion data, jaw position and bone data, and occlusal defect points. The dentition occlusion data includes point cloud data of the maxillary and mandibular dentition and gingiva obtained through an intraoral scanner, recording the original tooth arrangement, occlusal contact points in the posterior tooth region, and the distance between the maxillary and mandibular posterior teeth. The jaw position and bone data include original jaw position parameters (e.g., mandibular retrusion distance, lateral displacement amplitude) and original mandibular movement trajectory obtained through a jaw position recorder. Occlusal defect points are data marking the height difference of the occlusal surface in the user's posterior tooth region, areas of mismatched dental arch width, and the direction of mandibular movement trajectory deviation. Through point cloud processing, three-dimensional reconstruction, and occlusal alignment functions, the user's dental, jaw position, and occlusal features are digitally restored, ultimately constructing a three-dimensional occlusal model that closely matches the user's actual oral cavity condition.

[0032] Step S202: Adjust the three-dimensional occlusal model according to the preset target correction parameters to obtain the user's target jaw position model.

[0033] In this embodiment, the target jaw position model is an ideal state model formed by adjusting the three-dimensional occlusion model after treatment guidance. It corrects problems such as jaw position deviation and alignment abnormalities in the original occlusion and presents the expected positional relationship of the upper and lower jaws after treatment.

[0034] In the 3D occlusal model, the initial spatial positions of the user's upper and lower posterior teeth are first located and determined to clarify the occlusal alignment of the posterior teeth in their original state. Then, combined with preset target correction parameters, the 3D occlusal model is quantitatively adjusted based on the initial spatial positions of the upper and lower posterior teeth to correct jaw position deviations in the original occlusion. After the adjustment operation is completed, the target jaw position model is generated. The preset target correction parameters are determined in advance based on the patient's oral characteristics and clinical orthodontic plan. These are adjustment values ​​used to correct the original occlusal jaw position to the ideal corrected jaw position, including mandibular protrusion distance, lateral adjustment range, and vertical occlusal height. Mandibular protrusion distance refers to the specific number of millimeters the mandible needs to move forward for patients with mandibular retrusion; lateral adjustment range refers to the specific number of millimeters the mandible needs to move to the left / right for patients with lateral mandibular deviation; and vertical occlusal height refers to the required opening height of the posterior teeth after treatment to ensure sufficient vertical space for jaw position induction.

[0035] Step S203: Construct the guide rail reference plane based on the occlusal three-dimensional model and the target jaw position model.

[0036] In this embodiment, the guide rail reference surface is a virtual digital reference surface used to guide the design of the posterior tooth guide rail structure. The guide rail reference surface conforms to the actual crown and alveolar bone anatomy of the user's posterior teeth, and its curvature, tilt angle, and direction are determined based on the correction trajectory from the 3D occlusal model to the target jaw model. The posterior teeth region is... Figure 3 The area shown is between teeth 5 (second premolar) and 7 (second molar) in the upper and lower jaws. Specifically, based on the posterior tooth region of the occlusal 3D model and combined with the orthodontic guidance requirements of the target jaw model, a virtual guide surface is created within this area. After calibrating the surface morphology and guidance attributes, the guide rail reference surface is constructed.

[0037] Step S204: Determine the guide rail parameters based on the three-dimensional meshing model and the guide rail reference surface.

[0038] In this embodiment, the guide rail parameters include posterior tooth spacing parameters, height parameters, and trajectory curvature. The posterior tooth spacing parameter refers to the actual distance between the upper and lower posterior teeth in the 3D occlusal model, used to determine the fit dimensions of the guide rail's convex and concave structures. The height parameter refers to the vertical height difference between the occlusal surface of the posterior tooth region and the guide rail reference surface, used to determine the support height of the guide rail. The trajectory curvature refers to the curvature of the correction trajectory from the 3D occlusal model to the target jaw position model, used to determine the bending angle of the guide rail's guiding surface. Specifically, based on the 3D occlusal model, anatomical feature data of the user's posterior tooth region is extracted, including information such as posterior tooth spacing and the spatial position of the occlusal surface of the posterior tooth region. Using the guide rail reference surface as a reference, the relative height values ​​between the occlusal surface of the posterior tooth region in the 3D occlusal model and the guide rail reference surface are measured, and the correction trajectory curvature characteristics corresponding to the guide rail reference surface are obtained. The extracted anatomical data and the guidance parameters obtained by referring to the reference surface are integrated, and the parameters are quantified and converted according to the posterior tooth guide rail design specifications to finally determine the guide rail parameters that adapt to the user's oral structure and jaw position guidance needs.

[0039] Step S205: Generate the user's guide rail orthodontic appliance model based on the guide rail parameters and the occlusal three-dimensional model.

[0040] In this embodiment, the actual dentition morphology, occlusal relationship, and anatomical structure of the user's posterior teeth, reconstructed from a 3D occlusal model, are used as the construction base. A guide-type orthodontic appliance model is constructed according to the quantitative requirements of guide rail dimensions, guiding shape, and spatial position defined by the guide rail parameters. For example... Figure 4 A schematic diagram of the guide rail type orthodontic appliance model shown. Figure 4 The lower part shows a long strip-shaped guide rail extending along the front and back of the dental arch, covering teeth 4 to 7. Its direction is consistent with the front and back movement path of the mandible, and it serves as the guide reference rail for the entire jaw position adjustment. Figure 4The upper part of the model shows the occlusal surface of the upper posterior teeth corresponding to the lower tooth guide rail. A short, strip-shaped guide rail is designed along the buccal-lingual direction (left-right direction), its length covering only a single posterior tooth, and its direction consistent with the left-right movement path of the upper teeth. When the upper and lower teeth occlude, the horizontal rail of the upper teeth and the vertical rail of the lower teeth make tangential contact at a cross intersection. The horizontal rail can slide freely within the convex bars of the vertical rail, neither completely locking the upper and lower jaws nor restricting movement in non-target directions. During the construction process, the personalized features of the occlusal 3D model are incorporated to ensure that the overall contour of the model matches the user's oral dentition and posterior tooth structure, avoiding structural deviations or discrepancies with the actual oral situation. Simultaneously, based on the functional guidance requirements of the guide rail parameters, the model's built-in guide rail structure matches the basic characteristics of the jaw position correction trajectory. After the guide rail structure and the tooth model are initially assembled, the model is adjusted according to the conventional design requirements of orthodontic appliances, ensuring smooth connections between parts and a shape suitable for wearing in the mouth, while simultaneously fulfilling the basic functions of teeth correction and jaw position guidance. The 3D bite model accurately recreates the user's actual oral cavity and tooth shape, ensuring that the resulting orthodontic appliance fits the user's mouth perfectly and is more comfortable to wear. The guide parameters clearly define the dimensions and guiding requirements of the guide, allowing the appliance to stably guide mandibular movement. The combined design of these two elements creates an orthodontic appliance model that both fits the user's oral cavity and achieves jaw alignment correction.

[0041] and Figure 4 The horizontal rails of the upper and middle teeth are restricted by the vertical rails, preventing lateral sliding between the upper and lower teeth and avoiding problems such as mandibular deviation and lateral occlusal interference during orthodontic treatment. The long grooves of the vertical rails provide a path for anteroposterior sliding, allowing the mandible to move only in a predetermined anteroposterior direction (such as protrusion / retrusion), which can correct sagittal jaw position deviations (such as mandibular retrusion / protrusion). Secondly, when the horizontal and vertical rails are tangentially engaged, a stable vertical occlusal gap is formed. This stable vertical occlusal gap can also be achieved by adjusting the height of the guide rails. For example, when correcting deep overbite, raising the height of the guide rails opens the posterior teeth occlusion, guides the posterior teeth to elongate, and simultaneously maintains the target position of mandibular protrusion.

[0042] This application acquires the user's three-dimensional oral cavity data and constructs a three-dimensional occlusal model, which can recreate the user's actual occlusal state and anatomical features of the posterior teeth, allowing subsequent design to conform to the user's actual oral condition. Secondly, the occlusal three-dimensional model is adjusted to obtain a target jaw position model, which clarifies the jaw position target for orthodontic treatment and provides a clear direction for the design of the guide rail reference surface. Next, the guide rail reference surface is constructed by combining the occlusal three-dimensional model and the target jaw position model, ensuring that the reference surface takes into account both the user's oral anatomy and jaw position guidance requirements, adapting to the user's personalized oral condition. Then, the guide rail parameters are determined by combining the occlusal three-dimensional model and the guide rail reference surface, ensuring that the size and angle of the guide rail conform to the user's posterior teeth region, avoiding mismatch between the guide rail structure and the user's oral cavity. Finally, an appliance model is generated based on the guide rail parameters and the occlusal three-dimensional model, allowing the appliance to conform to the user's oral occlusal state, enabling the guide rail to effectively guide the mandible to the target jaw position, ensuring that orthodontic treatment and jaw position guidance are synchronized, avoiding disconnection between the two, and achieving simultaneous jaw position movement and orthodontic treatment, thus improving the actual effect of jaw position guidance.

[0043] In some optional implementations of this embodiment, the step of generating the user-fitted guide rail orthodontic appliance model based on the guide rail parameters and the occlusal 3D model includes: The guide rail type jaw plate is simulated based on the guide rail parameters to obtain the guide rail type jaw plate model; The guide rail type orthodontic appliance model is generated based on the guide rail type jaw plate model and the occlusal three-dimensional model.

[0044] In this embodiment, based on the dimensions, height, and guiding curvature values ​​in the guide rail parameters, the main structures of the anterior-posterior longitudinal guide rail in the mandibular posterior tooth region and the buccal-lingual transverse guide rail in the maxillary posterior tooth region are constructed, enabling the upper and lower mandibular guide rails to form a cross-shaped tangential occlusal fit. The guide rail body is surface-smoothed, and limiting structures are set according to parameter requirements to calibrate the fit between the guide rail and the posterior tooth surfaces. Next, the guide rail-type jaw plate model and the occlusal 3D model are imported into the same modeling environment for spatial alignment and matching. Using the user's dentition morphology presented in the occlusal 3D model as the basis for fabrication, the guide rail-type jaw plate model is placed in the designated areas from the maxillary second premolar to the second molar and the corresponding mandibular posterior teeth, combining the two types of models into a complete whole. Following the conventional design requirements of orthodontic appliances, the basic external structure of the appliance is constructed using the completed overall model as a reference, thereby determining the initial guide rail-type orthodontic appliance model. Finally, the overall structure of the initial guide rail orthodontic appliance model was checked, and the edges of the model were made smooth and rounded. The connection points of each part of the model were then adjusted, and any abrupt structural changes were removed. Next, the model surface was optimized to ensure it was flat. Then, the fit between the model and the user's dentition and posterior teeth was checked, and any structural deviations were corrected. After all adjustments were completed, the desired result was obtained as follows: Figure 4 The model of the guide rail type orthodontic appliance is shown.

[0045] This application generates a guide rail-type jaw plate model by simulating guide rail parameters, and then builds an initial orthodontic appliance model by combining it with a 3D occlusal model. After structural and morphological optimization and adjustment, the final model is obtained. This step-by-step construction method allows the orthodontic appliance model to better match the user's dentition and posterior tooth area. The model shape conforms to the oral structure, making it more comfortable to wear and meeting the needs of jaw position guidance.

[0046] In some optional implementations of this embodiment, the step of generating the guide rail orthodontic appliance model based on the guide rail occlusal plate model and the occlusal three-dimensional model includes: Based on the occlusal 3D model, an initial orthodontic appliance model for the user is constructed; Based on the initial orthodontic appliance model and the guide rail chin plate model, the guide rail orthodontic appliance model is generated.

[0047] In this embodiment, based on the occlusal 3D model, using the center point of the posterior tooth crown as the alignment reference, and referring to the design standards for orthodontic appliances, the range and thickness of the tooth-wrapping area are set, and the basic support structure on the buccal and lingual sides of the appliance is constructed. The fit and edge morphology of the wrapping layer are adjusted to conform to the tooth surface morphology, constructing the user's initial orthodontic appliance model. Based on the initial orthodontic appliance model and the guide-type jaw plate model, the spatial position of the jaw plate model is adjusted using the corresponding center point of the posterior tooth crown in the occlusal 3D model as the alignment reference, ensuring complete fit with the tooth surface of the posterior tooth region, and that the upper and lower jaw guides form a cross-tangential occlusal fit. A fusion overlap parameter is set to structurally integrate the jaw plate model and the initial appliance model, eliminating gaps and misalignments at the connection points. The edges at the connection points are smoothed to achieve a seamless connection. Finally, after integrating and perfecting the overall structure, the guide-type orthodontic appliance model is generated.

[0048] This application constructs an initial orthodontic appliance model that conforms to the user's dentition morphology using a three-dimensional occlusal model. This model is then structurally integrated with a guide-type jaw plate model to eliminate gaps and misalignments at the connection points and to smooth out sharp edges, ensuring a natural overall structural connection. The model can closely fit the posterior tooth surface, meeting the design requirements of the appliance and providing a suitable model basis for subsequent orthodontic treatment.

[0049] In some optional implementations of this embodiment, the step of determining the guide rail parameters based on the meshing three-dimensional model and the guide rail reference plane includes: Based on the occlusal 3D model, the occlusal surface of the user is determined, and the height parameter between the occlusal surface and the guide rail reference surface is calculated. Based on the occlusal 3D model, the posterior tooth spacing parameters of the user and the curvature of the movement trajectory between the occlusal 3D model and the target jaw position model are obtained; The guide rail parameters are determined based on the posterior tooth spacing parameters, the height parameters, and the curvature.

[0050] In this embodiment, the 3D occlusal model represents the user's original occlusal state, while the target jaw position model represents the ideal jaw position to be achieved after orthodontic treatment. The posterior occlusal surface refers to the masticatory surface where the crowns of the maxillary and mandibular posterior teeth (from the second premolar to the second molar in the maxilla, and the corresponding mandibular tooth position) contact each other; it is the natural surface on which the posterior teeth bite and bear force. In the 3D occlusal model, the area from the second premolar to the second molar in the maxilla and the corresponding mandibular posterior teeth is defined. The contour features of the masticatory surfaces where the crowns of the maxilla and mandibular teeth contact each other within this area are identified, and the spatial position and morphological information of the occlusal contact area are extracted to fit and form a continuous and complete occlusal surface. Next, the positions of the maxillary occlusal surface and the maxillary guide reference plane, and the mandibular occlusal surface and the mandibular guide reference plane are marked respectively. The vertical distance between the two sets of surfaces is calculated using a measuring tool to obtain the height parameters of the corresponding maxillary and mandibular guides. Then, the posterior tooth region of the 3D occlusal model is located, and the distances between the maxillary and mandibular posterior teeth are measured to obtain the posterior tooth spacing parameters. The curvature of the movement trajectory between the 3D occlusal model and the target jaw position model refers to the degree of curvature of the movement path traversed by the mandible as it moves from its original occlusal position to the target jaw position. The 3D occlusal model and the target jaw position model are spatially aligned to simulate the movement of the mandible from its original occlusal state to the target jaw position, and the curvature value of this movement trajectory is measured. Finally, the posterior tooth spacing parameters, height parameters, and trajectory curvature are processed and converted according to the modeling numerical format, integrating them into unified quantitative data. Based on the spatial distribution of the posterior teeth, long longitudinal guides extending anteroposteriorly along the dental arch are placed on the occlusal surface of the mandibular posterior teeth, and short transverse guides extending buccal-lingually along the occlusal surface of the maxillary posterior teeth are placed. The vertical thickness and installation reference height of the maxillary and mandibular guides are set according to the height parameters. The curvature and direction of the guides are matched according to the trajectory curvature to ensure that the maxillary transverse guides and the mandibular longitudinal guides form a cross-tangential occlusal fit. The width, height, curvature, and other dimensional and morphological data are integrated to complete numerical matching and parameter assignment, ultimately determining the guide parameters.

[0051] This application obtains the occlusal surface of the posterior tooth interval and the curvature of the mandibular movement trajectory, and then calculates the height parameters of the occlusal surface and the guide rail reference surface. By integrating and converting multiple data into guide rail parameters, the parameters can be made to fit the actual situation of the user's oral cavity, providing a complete quantitative basis for subsequent guide rail modeling, and making the guide rail structure match the user's dentition and orthodontic trajectory.

[0052] In some optional implementations of this embodiment, the step of constructing the guide rail reference surface based on the occlusal three-dimensional model and the target jaw position model includes: Based on the occlusal 3D model, the baseline of the user's posterior tooth region is calibrated; The correction trajectory between the occlusal 3D model and the target jaw position model is simulated, and the guide rail reference plane is constructed based on the posterior tooth region baseline and the correction trajectory.

[0053] In this embodiment, the crowns of the maxillary second premolar to the second molar are located in the 3D occlusal model. The center points of the occlusal surfaces of each posterior tooth are selected, and these points are connected sequentially according to the tooth position to form the maxillary posterior tooth region baseline, i.e., the buccal-lingual short baseline. Similarly, the center points of the occlusal surfaces of the corresponding mandibular teeth are located and connected in the same way to form the mandibular posterior tooth region baseline, i.e., the longitudinal baseline of the dental arch. This posterior tooth region baseline is used to delineate the layout range and direction of the guide rail, determine the position and direction of the guide rail reference surface, and serve as a reference for measuring the spacing and trajectory curvature of the posterior tooth region, ensuring that the length, position, and guiding angle of the guide rail match the posterior tooth region and conform to the user's dentition arrangement and mandibular movement path. The 3D occlusal model includes the user's maxillary and mandibular models. Keeping the position of the maxillary model unchanged, the mandibular model in the 3D occlusal model is simulated to move to the position of the mandibular model in the target jaw position model. This movement process is the correction trajectory. Finally, using the posterior tooth baseline as the positioning boundary, the distribution range and extension direction of the guide rail reference surfaces are determined. A long, narrow basic curved surface is generated by stretching along the longitudinal baseline of the mandible, aligning its curvature with the curvature of the correction path to ensure a complete fit and form the mandibular longitudinal guide rail reference surface. A short, narrow basic curved surface is generated by stretching along the buccal-lingual baseline of the maxilla, forming the maxillary transverse guide rail reference surface. After adjusting the surface shape, this becomes the final guide rail reference surface, and the maxillary and mandibular guide rail reference surfaces can form a cross-shaped tangential occlusal fit.

[0054] This application establishes a baseline for the posterior teeth region and simulates the correction trajectory between the occlusal model and the target jaw model. Based on these two models, a guide rail reference surface is constructed. This allows the range and orientation of the reference surface to conform to the tooth arrangement in the user's posterior teeth region and remain consistent with the mandibular movement path. This provides a clear reference for the subsequent design of the guide rail structure, making the guide rail fabrication more in line with the user's actual oral condition.

[0055] In some optional implementations of this embodiment, the step of adjusting the three-dimensional occlusal model according to preset target correction parameters to obtain the user's target jaw position model includes: In the occlusal three-dimensional model, the spatial positions of the maxillary and mandibular posterior tooth regions are determined; Based on the target orthodontic parameters and the spatial position of the maxillary and mandibular posterior teeth, the occlusal three-dimensional model is adjusted to obtain the target jaw position model.

[0056] In this embodiment, the target correction parameters are pre-determined jaw position adjustment values ​​based on the orthodontic clinician's assessment of the user's oral condition. These primarily include mandibular protrusion distance, lateral movement amplitude, and vertical occlusal height, set in advance by the dentist based on the user's posterior tooth occlusion, jawbone morphology, and treatment goals. Specifically, in the occlusal 3D model, the regions from the maxillary second premolar to the second molar and the corresponding mandibular posterior teeth are marked, clarifying the relative orientation and spacing of the maxillary and mandibular posterior tooth regions, thus obtaining the spatial positions of the maxillary and mandibular posterior tooth regions. Based on the preset target correction parameters—namely, the adjustment parameters for mandibular protrusion distance, lateral movement amplitude, and vertical occlusal height—and using the spatial positions of the maxillary and mandibular posterior tooth regions as a reference, the position of the maxillary model is fixed, and the mandibular model is adjusted to the corresponding orientation according to the parameters. After adjustment, the target jaw position model is generated.

[0057] This application determines the spatial position of the upper and lower posterior teeth in the three-dimensional occlusal model, and then adjusts the model in combination with the target orthodontic parameters. This allows the generated target jaw position model to fit the actual situation of the user's oral cavity, and the parameter settings to meet the orthodontic needs. It can also provide a stable reference for the subsequent construction of the guide rail reference plane and the design of the guide rail structure, so that the jaw position planning and the subsequent modeling process are mutually compatible.

[0058] In some optional implementations of this embodiment, the oral cavity three-dimensional data includes dentition occlusion data, jawbone data, and occlusal defect points. The step of constructing a three-dimensional occlusal model based on the oral cavity three-dimensional data includes: Based on the dental occlusion data, the three-dimensional morphology of the user's teeth is reconstructed; Based on the jawbone data, the occlusal state of the three-dimensional morphology of the teeth is adjusted to obtain an initial three-dimensional occlusal model. Based on the occlusal defect points, the initial occlusal 3D model is marked to obtain the occlusal 3D model.

[0059] In this embodiment, the occlusal data includes the user's posterior tooth crowns, occlusal surface contours, original tooth arrangement, posterior tooth occlusal contact positions, and posterior tooth spacing, used to reconstruct the user's original dentition morphology and calibrate the posterior tooth region. The jawbone data includes the user's original jaw position, mandibular movement trajectory, three-dimensional structure of the jawbone and alveolar bone, and alveolar bone thickness. Occlusal defects include differences in posterior tooth occlusal surface height, mismatch in dental arch width, mandibular movement trajectory deviation, and occlusal disorders.

[0060] Specifically, the collected occlusal data is first denoised to preserve the effective contour features of the crowns and gingiva. Then, surface fitting is performed on the processed occlusal data to generate a continuous, smooth surface that conforms to the crown shape and gingival trend. Subsequently, the boundaries between the crown and gingiva are defined, and the two types of surfaces are reconstructed to restore the three-dimensional morphology of the teeth. Based on the spatial position of the three-dimensional tooth morphology, combined with the original jaw position parameters and spatial distribution relationship in the jawbone data, the orientation of the mandibular three-dimensional morphology model is adjusted to ensure corresponding occlusal contact between the upper and lower posterior teeth, restoring the user's original occlusal state and obtaining an initial occlusal three-dimensional model. Based on occlusal defect points, the occlusal surface height difference of the posterior teeth, the mismatch area of ​​the dental arch width, and the direction of mandibular movement trajectory deviation are located in the initial occlusal three-dimensional model. The defect locations are labeled and visualized one by one, ultimately forming the occlusal three-dimensional model.

[0061] This application reconstructs the three-dimensional morphology of teeth using dental occlusion data, adjusts the occlusion state using jaw position and jawbone data to obtain an initial model, and then marks occlusion defect points to construct a three-dimensional occlusion model. This model can fully present the user's dental arrangement and original occlusion state, intuitively show various occlusion problems, and provide a complete and intuitive model reference for subsequent jaw position adjustment and guide rail design.

[0062] The embodiments of this application can acquire and process relevant data based on artificial intelligence technology. Artificial intelligence (AI) refers to the theories, methods, technologies, and application systems that use digital computers or machines controlled by digital computers to simulate, extend, and expand human intelligence, perceive the environment, acquire knowledge, and use that knowledge to obtain optimal results.

[0063] Foundational technologies for artificial intelligence generally include sensors, dedicated AI chips, cloud computing, distributed storage, big data processing, operating / interactive systems, and mechatronics. AI software technologies mainly encompass computer vision, robotics, biometrics, speech processing, natural language processing, and machine learning / deep learning.

[0064] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing related hardware through computer-readable instructions. These computer-readable instructions can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. The aforementioned storage medium can be a non-volatile storage medium such as a magnetic disk, optical disk, or read-only memory (ROM), or random access memory (RAM).

[0065] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0066] Further reference Figure 4 As a response to the above Figure 2 The implementation of the method shown in this application provides an embodiment of an orthodontic appliance modeling system, which is similar to... Figure 2 Corresponding to the method embodiments shown, the system can be specifically applied to various electronic devices.

[0067] like Figure 5 As shown, the orthodontic appliance modeling system 500 described in this embodiment includes: an acquisition module 501, an adjustment module 502, a construction module 503, a determination module 504, and a generation module 505. Wherein: The acquisition module 501 is used to acquire the user's oral cavity three-dimensional data and construct the user's bite three-dimensional model based on the oral cavity three-dimensional data; The adjustment module 502 is used to adjust the three-dimensional occlusal model according to the preset target correction parameters to obtain the user's target jaw position model; Construction module 503 is used to construct the guide rail reference plane based on the occlusal three-dimensional model and the target jaw position model; The determining module 504 is used to determine the guide rail parameters based on the three-dimensional meshing model and the guide rail reference surface; The generation module 505 is used to generate the user's guide rail orthodontic appliance model based on the guide rail parameters and the occlusal three-dimensional model.

[0068] The orthodontic appliance modeling system provided in this application acquires the user's three-dimensional oral cavity data and constructs a three-dimensional occlusal model. This model accurately recreates the user's actual occlusal state and anatomical features of the posterior teeth, ensuring that subsequent design closely matches the user's actual oral condition. Next, the occlusal model is adjusted to obtain a target jaw position model, clearly defining the jaw position target for orthodontic treatment and providing a clear direction for the design of the guide rail reference surface. Then, the guide rail reference surface is constructed by combining the occlusal model and the target jaw position model, ensuring that the reference surface considers both the user's oral anatomy and jaw position guidance requirements, adapting to the user's personalized oral condition. Then, the guide rail parameters are determined by combining the occlusal model and the guide rail reference surface, ensuring that the guide rail's size and angle fit the user's posterior teeth region, avoiding mismatch between the guide rail structure and the user's oral cavity. Finally, an appliance model is generated based on the guide rail parameters and the occlusal model, allowing the appliance to fit the user's oral occlusal state. This enables the guide rail to effectively guide the mandible to the target jaw position, ensuring that orthodontic treatment and jaw position guidance are synchronized, preventing them from becoming disconnected, and achieving simultaneous jaw position movement and orthodontic treatment, thus improving the actual effect of jaw position guidance.

[0069] In some optional implementations of this embodiment, the generation module 505 is further configured to: The guide rail type jaw plate is simulated based on the guide rail parameters to obtain the guide rail type jaw plate model; The guide rail type orthodontic appliance model is generated based on the guide rail type jaw plate model and the occlusal three-dimensional model.

[0070] The orthodontic appliance modeling system provided in this application generates a guide rail-type jaw plate model by simulating guide rail parameters, and then builds an initial appliance model by combining it with a 3D occlusal model. After structural and morphological optimization and adjustment, the final model is obtained. This step-by-step construction method allows the appliance model to better match the user's dentition and posterior tooth area. The model shape conforms to the oral structure, making it more comfortable to wear and meeting the needs of jaw position guidance.

[0071] In some optional implementations of this embodiment, the generation module 505 is further configured to: Based on the occlusal 3D model, an initial orthodontic appliance model for the user is constructed; Based on the initial orthodontic appliance model and the guide rail chin plate model, the guide rail orthodontic appliance model is generated.

[0072] The orthodontic appliance modeling system provided in this application constructs an initial orthodontic appliance model that fits the user's dentition morphology through a three-dimensional occlusal model. This model is then structurally integrated with a guide-type jaw plate model to eliminate gaps and misalignments at the connection points and to smooth out sharp edges, ensuring a natural overall structural connection. The model can closely fit the posterior tooth surface, meeting the design requirements of the appliance and providing a suitable model basis for subsequent orthodontic treatment.

[0073] In some optional implementations of this embodiment, the determining module 504 is further configured to: Based on the occlusal 3D model, the occlusal surface of the user is determined, and the height parameter between the occlusal surface and the guide rail reference surface is calculated. Based on the occlusal 3D model, the posterior tooth spacing parameters of the user and the curvature of the movement trajectory between the occlusal 3D model and the target jaw position model are obtained; The guide rail parameters are determined based on the posterior tooth spacing parameters, the height parameters, and the curvature.

[0074] The orthodontic appliance modeling system provided in this application obtains the occlusal surface of the posterior tooth interval and the curvature of the mandibular movement trajectory, and then calculates the height parameters of the occlusal surface and the guide rail reference surface. By integrating and converting multiple data into guide rail parameters, the system can make the parameters fit the actual situation of the user's oral cavity, providing a complete quantitative basis for subsequent guide rail modeling, and making the guide rail structure match the user's dentition and treatment trajectory.

[0075] In some optional implementations of this embodiment, the construction module 503 is further configured to: Based on the occlusal 3D model, the baseline of the user's posterior tooth region is calibrated; The correction trajectory between the occlusal 3D model and the target jaw position model is simulated, and the guide rail reference plane is constructed based on the posterior tooth region baseline and the correction trajectory.

[0076] The orthodontic appliance modeling system provided in this application calibrates the baseline of the posterior teeth region and simulates the correction trajectory between the occlusal model and the target jaw position model. Based on the two, a guide rail reference surface is constructed. This allows the range and direction of the reference surface to conform to the tooth arrangement of the user's posterior teeth region and be consistent with the movement path of the mandible. This provides a clear reference for the design of the subsequent guide rail structure, making the guide rail manufacturing more in line with the actual oral condition of the user.

[0077] In some optional implementations of this embodiment, the adjustment module 502 is further configured to: In the occlusal three-dimensional model, the spatial positions of the maxillary and mandibular posterior tooth regions are determined; Based on the target orthodontic parameters and the spatial position of the maxillary and mandibular posterior teeth, the occlusal three-dimensional model is adjusted to obtain the target jaw position model.

[0078] The orthodontic appliance modeling system provided in this application determines the spatial position of the upper and lower posterior teeth in the three-dimensional occlusal model, and then adjusts the model by combining preset adjustment parameters. This allows the generated target jaw position model to fit the actual situation of the user's oral cavity, and the parameter settings to meet the orthodontic needs. It can also provide a stable reference for the subsequent construction of guide rail reference planes and guide rail structure design, so that jaw position planning and subsequent modeling stages are mutually compatible.

[0079] In some optional implementations of this embodiment, the acquisition module 501 is further configured to: Based on the dental occlusion data, the three-dimensional morphology of the user's teeth is reconstructed; Based on the jawbone data, the occlusal state of the three-dimensional morphology of the teeth is adjusted to obtain an initial three-dimensional occlusal model. Based on the occlusal defect points, the initial occlusal 3D model is marked to obtain the occlusal 3D model.

[0080] The orthodontic appliance modeling system provided in this application restores the three-dimensional morphology of teeth through dental occlusion data, adjusts the occlusal state by combining jaw position and jawbone data to obtain an initial model, and then marks occlusal defect points to construct a three-dimensional occlusal model. It can fully present the user's dental arrangement and original occlusal state, intuitively show various occlusal problems, and provide a complete and intuitive model reference for subsequent jaw position adjustment and guide rail design.

[0081] To address the aforementioned technical problems, embodiments of this application also provide a computer device. Please refer to [link / reference needed]. Figure 6 , Figure 6 This is a basic structural block diagram of the computer device in this embodiment.

[0082] The computer device 6 includes a memory 61, a processor 62, and a network interface 63 that are interconnected via a system bus. It should be noted that only the computer device 6 with components 61, 62, and 63 is shown in the figure; however, it should be understood that it is not required to implement all the shown components, and more or fewer components can be implemented alternatively. Those skilled in the art will understand that the computer device described here is a device capable of automatically performing numerical calculations and / or information processing according to pre-set or stored instructions, and its hardware includes, but is not limited to, microprocessors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), digital signal processors (DSPs), embedded devices, etc.

[0083] The computer device can be a desktop computer, laptop, handheld computer, or cloud server, etc. The computer device can interact with the user via a keyboard, mouse, remote control, touchpad, or voice control.

[0084] The memory 61 includes at least one type of readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 61 may be an internal storage unit of the computer device 6, such as the hard disk or memory of the computer device 6. In other embodiments, the memory 61 may also be an external storage device of the computer device 6, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the computer device 6. Of course, the memory 61 may include both the internal storage unit and its external storage device of the computer device 6. In this embodiment, the memory 61 is typically used to store the operating system and various application software installed on the computer device 6, such as computer-readable instructions for orthodontic appliance modeling methods. In addition, the memory 61 can also be used to temporarily store various types of data that have been output or will be output.

[0085] In some embodiments, the processor 62 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip. The processor 62 is typically used to control the overall operation of the computer device 6. In this embodiment, the processor 62 is used to execute computer-readable instructions stored in the memory 61 or to process data, for example, to execute computer-readable instructions for the orthodontic appliance modeling method.

[0086] The network interface 63 may include a wireless network interface or a wired network interface, which is typically used to establish communication connections between the computer device 6 and other electronic devices.

[0087] The computer equipment provided in this application acquires the user's three-dimensional oral cavity data and constructs a three-dimensional occlusal model, which can restore the user's actual occlusal state and anatomical features of the posterior teeth, allowing subsequent design to conform to the user's actual oral condition. Secondly, the occlusal three-dimensional model is adjusted to obtain a target jaw position model, which clarifies the jaw position target for orthodontic treatment and provides a clear direction for the design of the guide rail reference surface. Next, the guide rail reference surface is constructed by combining the occlusal three-dimensional model and the target jaw position model, ensuring that the reference surface takes into account both the user's oral anatomy and jaw position guidance requirements, adapting to the user's personalized oral condition. Then, the guide rail parameters are determined by combining the occlusal three-dimensional model and the guide rail reference surface, ensuring that the size and angle of the guide rail conform to the user's posterior teeth region, avoiding mismatch between the guide rail structure and the user's oral cavity. Finally, an orthodontic appliance model is generated based on the guide rail parameters and the occlusal three-dimensional model, allowing the appliance to conform to the user's oral occlusal state, enabling the guide rail to effectively guide the mandible to the target jaw position, ensuring that orthodontic treatment and jaw position guidance are synchronized, avoiding disconnection between the two, and achieving simultaneous jaw position movement and orthodontic treatment, thus improving the actual effect of jaw position guidance.

[0088] This application also provides another embodiment, namely, providing a computer-readable storage medium storing computer-readable instructions that can be executed by at least one processor to cause the at least one processor to perform the steps of the orthodontic appliance modeling method as described above.

[0089] The computer-readable storage medium provided in this application acquires three-dimensional oral data from a user and constructs a three-dimensional occlusal model. This model recreates the user's actual occlusal state and anatomical features of the posterior teeth, allowing subsequent design to closely match the user's actual oral condition. Secondly, adjustments are made to the occlusal model to obtain a target jaw position model, clearly defining the jaw position target for orthodontic treatment and providing a clear direction for the design of the guide rail reference surface. Next, the guide rail reference surface is constructed by combining the occlusal model and the target jaw position model, ensuring that the reference surface considers both the user's oral anatomy and jaw position guidance requirements, adapting to the user's personalized oral condition. Then, the guide rail parameters are determined by combining the occlusal model and the guide rail reference surface, ensuring that the guide rail's size and angle fit the user's posterior teeth region, avoiding mismatch between the guide rail structure and the user's oral cavity. Finally, an orthodontic appliance model is generated based on the guide rail parameters and the occlusal model, allowing the appliance to fit the user's oral occlusal state. This enables the guide rail to effectively guide the mandible to the target jaw position, ensuring that orthodontic treatment and jaw position guidance are synchronized, preventing them from becoming disconnected, and achieving simultaneous jaw position movement and orthodontic treatment, thus improving the actual effect of jaw position guidance.

[0090] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0091] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A method for modeling orthodontic appliances, characterized in that, Includes the following steps: Obtain the user's oral cavity three-dimensional data, and construct the user's bite three-dimensional model based on the oral cavity three-dimensional data; The occlusal three-dimensional model is adjusted according to the preset target correction parameters to obtain the user's target jaw position model; Based on the occlusal 3D model and the target jaw position model, construct the guide rail reference plane; Based on the three-dimensional model of the bite and the guide rail reference surface, determine the guide rail parameters; Based on the guide rail parameters and the occlusal 3D model, a guide rail-type orthodontic appliance model is generated for the user.

2. The orthodontic appliance modeling method according to claim 1, characterized in that, The step of generating the user's guide rail orthodontic appliance model based on the guide rail parameters and the occlusal 3D model includes: The guide rail type jaw plate is simulated based on the guide rail parameters to obtain the guide rail type jaw plate model; The guide rail type orthodontic appliance model is generated based on the guide rail type jaw plate model and the occlusal three-dimensional model.

3. The orthodontic appliance modeling method according to claim 2, characterized in that, The step of generating the guide rail orthodontic appliance model based on the guide rail jaw plate model and the occlusal three-dimensional model includes: Based on the occlusal 3D model, an initial orthodontic appliance model for the user is constructed; Based on the initial orthodontic appliance model and the guide rail chin plate model, the guide rail orthodontic appliance model is generated.

4. The orthodontic appliance modeling method according to claim 1, characterized in that, The step of determining the guide rail parameters based on the three-dimensional meshing model and the guide rail reference surface includes: Based on the occlusal 3D model, the occlusal surface of the user is determined, and the height parameter between the occlusal surface and the guide rail reference surface is calculated. Based on the occlusal 3D model, the posterior tooth spacing parameters of the user and the curvature of the movement trajectory between the occlusal 3D model and the target jaw position model are obtained; The guide rail parameters are determined based on the posterior tooth spacing parameters, the height parameters, and the curvature.

5. The orthodontic appliance modeling method according to claim 1, characterized in that, The step of constructing the guide rail reference plane based on the occlusal three-dimensional model and the target jaw position model includes: Based on the occlusal 3D model, the baseline of the user's posterior tooth region is calibrated; The correction trajectory between the occlusal 3D model and the target jaw position model is simulated, and the guide rail reference plane is constructed based on the posterior tooth region baseline and the correction trajectory.

6. The orthodontic appliance modeling method according to claim 1, characterized in that, The step of adjusting the three-dimensional occlusal model according to preset target correction parameters to obtain the user's target jaw position model includes: In the occlusal three-dimensional model, the spatial positions of the maxillary and mandibular posterior tooth regions are determined; Based on the target orthodontic parameters and the spatial position of the maxillary and mandibular posterior teeth, the occlusal three-dimensional model is adjusted to obtain the target jaw position model.

7. The orthodontic appliance modeling method according to any one of claims 1 to 6, characterized in that, The oral cavity three-dimensional data includes dentition occlusion data, jaw position and jawbone data, and occlusal defect points. The construction of a three-dimensional occlusal model based on the oral cavity three-dimensional data includes: Based on the dental occlusion data, the three-dimensional morphology of the user's teeth is reconstructed; Based on the jawbone data, the occlusal state of the three-dimensional morphology of the teeth is adjusted to obtain an initial three-dimensional occlusal model. Based on the occlusal defect points, the initial occlusal 3D model is marked to obtain the occlusal 3D model.

8. An orthodontic appliance modeling system, characterized in that, include: The acquisition module is used to acquire the user's oral cavity three-dimensional data and construct the user's bite three-dimensional model based on the oral cavity three-dimensional data; The adjustment module is used to adjust the three-dimensional occlusal model according to the preset target correction parameters to obtain the user's target jaw position model; The construction module is used to construct the guide rail reference plane based on the occlusal 3D model and the target jaw position model; The determination module is used to determine the guide rail parameters based on the three-dimensional meshing model and the guide rail reference surface; The generation module is used to generate a guide rail-type orthodontic appliance model for the user based on the guide rail parameters and the occlusal 3D model.

9. A computer device, characterized in that, The method includes a memory and a processor, wherein the memory stores computer-readable instructions, and the processor executes the computer-readable instructions to implement the steps of the orthodontic appliance modeling method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-readable instructions, which, when executed by a processor, implement the steps of the orthodontic appliance modeling method as described in any one of claims 1 to 7.

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