WO2023241706A1 - 牙齿修复数据确定方法、装置、设备及存储介质 - Google Patents

牙齿修复数据确定方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023241706A1
WO2023241706A1 PCT/CN2023/100828 CN2023100828W WO2023241706A1 WO 2023241706 A1 WO2023241706 A1 WO 2023241706A1 CN 2023100828 W CN2023100828 W CN 2023100828W WO 2023241706 A1 WO2023241706 A1 WO 2023241706A1
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Prior art keywords
tooth
model
standard
prepared
preparation
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PCT/CN2023/100828
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English (en)
French (fr)
Inventor
陈晓军
章惠全
杨熙
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先临三维科技股份有限公司
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Publication of WO2023241706A1 publication Critical patent/WO2023241706A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation

Definitions

  • the embodiments of the present disclosure relate to the technical field of dental restoration, and in particular, to a method, device, equipment and storage medium for determining dental restoration data.
  • the design method of prepared teeth in the prior art is generally to use a pre-prepared silicone rubber guide plate and judge whether the prepared teeth are qualified through visual observation by the user, thereby obtaining the designed prepared teeth.
  • the shortcomings of the current design method of prepared teeth are: since it requires visual observation by the user, it is easy to make misjudgments with the naked eye.
  • the design process of prepared teeth requires the preparation of silicone rubber guides, it increases the number of preparation teeth. steps, increasing the cost of preparing teeth.
  • the present disclosure provides a dental restoration data determination method, device, equipment and storage medium.
  • the embodiment of the present disclosure provides a method for determining based on dental restoration data, the method includes:
  • the real tooth model of the target object and the standard preparation model corresponding to the real tooth model wherein the real tooth model includes the teeth to be prepared, the standard preparation model includes the standard preparation corresponding to the teeth to be prepared, and the standard preparation is used Standard prepared teeth wearing restorations;
  • An embodiment of the present disclosure also provides a device for determining dental restoration data, which device includes:
  • the model acquisition module is used to obtain the real tooth model of the target object and the standard preparation model corresponding to the real tooth model, where the real tooth model includes the teeth to be prepared, and the standard preparation model includes the standard preparation corresponding to the teeth to be prepared,
  • a standard preparation is a standard prepared tooth for wearing a restoration
  • the restoration data determination module is used to compare the teeth to be prepared in the real tooth model and the standard preparation in the standard tooth preparation model to obtain the data to be restored of the teeth to be prepared, where the data to be restored is the tooth to be prepared.
  • the tooth is restored to the data to be removed corresponding to the standard preparation.
  • An embodiment of the present disclosure also provides a dental restoration data determination device, which device includes:
  • processors one or more processors
  • a storage device for storing one or more programs
  • one or more processors When one or more programs are executed by one or more processors, one or more processors are caused to implement the dental restoration data determination method provided in the first aspect.
  • An embodiment of the present disclosure also provides a computer-readable storage medium, the storage medium stores a computer program, and the computer program is used to execute the tooth restoration data-based determination method as provided in the embodiment of the present disclosure.
  • the tooth restoration data determination method, device, equipment and storage medium provided by the embodiments of the present disclosure firstly obtain the real tooth model of the target object and the standard tooth preparation model corresponding to the real tooth model, where the real tooth model includes the teeth to be prepared, Standard dental preparation model package Including the standard preparation corresponding to the tooth to be prepared, which is the standard preparation tooth used to wear the restoration; then, compare the tooth to be prepared in the real tooth model with the standard preparation in the standard tooth preparation model , obtain the data to be repaired of the tooth to be prepared, where the data to be repaired is the data to be removed corresponding to the tooth to be prepared to be repaired to the standard preparation body.
  • the data to be repaired to restore the tooth to be prepared to the standard preparation can be directly determined, so that the data to be repaired can assist the user in repairing the tooth to be prepared. Therefore, the accuracy of tooth restoration can be improved, and the entire process does not require the preparation of silicone rubber guide plates in advance. It is automated and digitalized, ultimately simplifying the process and reducing time costs.
  • Figure 1 is a schematic flowchart of a method for determining dental restoration data in one or more embodiments of the present disclosure
  • Figure 2 is a schematic diagram of a real tooth model in one or more embodiments of the present disclosure
  • Figure 3 is a schematic diagram of a standard dental preparation model in one or more embodiments of the present disclosure.
  • Figure 4 is a schematic flowchart of a method for determining dental restoration data in one or more embodiments of the present disclosure
  • Figure 5 is a logical schematic diagram of a tooth model comparison in one or more embodiments of the present disclosure.
  • Figure 6 is a schematic diagram of a model comparison result in one or more embodiments of the present disclosure.
  • Figure 7 is a schematic flowchart of a method for determining dental restoration data in one or more embodiments of the present disclosure
  • Figure 8 is a logic for obtaining target dental preparation teeth in one or more embodiments of the present disclosure. Editing diagram
  • Figure 9 is a schematic structural diagram of a dental restoration data determination device in one or more embodiments of the present disclosure.
  • Figure 10 is a schematic structural diagram of a dental restoration data determination device in one or more embodiments of the present disclosure.
  • embodiments of the present disclosure provide a method, device, equipment and storage medium for determining dental restoration data.
  • the dental restoration data determination method may be executed by an electronic device or a server.
  • electronic devices can include tablets, desktop computers, laptops and other devices with communication functions, and can also include virtual machines or simulated computers. device simulated by the device.
  • the server can be a server cluster or a cloud server.
  • Figure 1 shows a schematic flow chart of a method for determining dental restoration data provided by an embodiment of the present disclosure.
  • the tooth restoration data determination method may include the following steps.
  • the real tooth model includes the teeth to be prepared
  • the standard preparation model includes the standard preparation corresponding to the teeth to be prepared.
  • the standard preparation is Standard prepared teeth for wearing restorations.
  • the electronic device can obtain the real tooth model of the target object and the standard tooth preparation model corresponding to the real tooth model, so that the teeth to be prepared can be obtained according to the shape of the teeth to be prepared in the real tooth model.
  • the morphological data and the morphological data of the standard preparation in the standard tooth preparation model are used to determine the data required for the restoration of the tooth to be prepared.
  • the real tooth model refers to a preoperative model of the target object, and the model may include the teeth to be prepared and other teeth except the teeth to be prepared.
  • the teeth to be prepared can be understood as diseased teeth that need to be repaired.
  • the real tooth model may be a pre-stored tooth model.
  • the teeth in the oral cavity of the target subject can be scanned in real time through an intraoral scanner, and the electronic device can obtain a real tooth model.
  • FIG. 2 is a schematic diagram of a real tooth model, which includes teeth to be prepared 210 and other teeth except the teeth to be prepared 210 .
  • the standard dental preparation model is a tooth model that assists the user in dental restoration, and the model may include a standard preparation body and other teeth in addition to the standard preparation body.
  • the standard preparation can provide a reference for the restoration process of the tooth to be prepared. If the shape of the tooth to be prepared is restored to the shape of the standard preparation, it means that the tooth to be prepared can be used to wear the restoration, thereby completing the repair process of the diseased tooth.
  • obtaining the standard tooth preparation model corresponding to the real tooth model in S110 can be implemented in the following manner:
  • electronic equipment can import real tooth models into third-party design software, and design restorations (such as dental crowns) through third-party design software.
  • design restorations such as dental crowns
  • the standard preparation can be selected and determined.
  • a standard tooth preparation model is generated based on the morphological data of the standard preparation body and the morphological data of other teeth except the teeth to be prepared.
  • the plurality of preparations obtained in advance may include preparations of tooth designs at different positions.
  • the morphological data of each tooth is used to characterize the spatial morphology of each tooth.
  • the morphological data of each tooth may include the thickness, position, shape, size, etc. of each tooth, which is not limited here.
  • FIG. 3 is a schematic diagram of a standard dental preparation model, which includes a standard preparation body 310 and other teeth except the standard preparation body 310 .
  • a suitable standard preparation body can be determined based on the morphological data of each tooth in the real tooth model, thereby generating a standard tooth preparation model that is suitable for the real teeth.
  • the electronic device can input the real tooth model and the standard tooth preparation model into the intraoral scanning software, and use the intraoral scanning software to compare the tooth to be prepared with the standard preparation, thereby determining the data to be repaired of the tooth to be prepared. , so that the data to be repaired is further fed back to the user, and the user can repair the tooth to be prepared based on the data to be repaired.
  • the morphological data of the tooth to be prepared and the standard preparation can be directly compared to obtain the data to be restored.
  • the tooth to be prepared and the standard preparation can be roughly registered and finely registered, and then the tooth to be prepared and the standard preparation can be registered based on the registration results. Compare and obtain the data to be repaired.
  • the data to be repaired may be used to characterize the data that the tooth to be prepared needs to be repaired.
  • the data to be repaired can be the thickness to be removed, the angle to be removed, the thickness to be removed, etc., which are not limited here.
  • a method for determining tooth restoration data according to an embodiment of the present disclosure.
  • a real tooth model of the target object and a standard tooth preparation model corresponding to the real tooth model are obtained.
  • the real tooth model includes teeth to be prepared, and the standard tooth preparation model includes teeth to be prepared.
  • the standard preparation corresponding to the prepared tooth which is the standard prepared tooth used to wear the restoration; then, compare the prepared tooth in the real tooth model with the standard preparation in the standard prepared tooth model, and obtain The data to be repaired of the tooth to be prepared, where the data to be repaired is the data to be removed corresponding to the tooth to be prepared to be repaired to a standard preparation body.
  • the data to be repaired to restore the tooth to be prepared to the standard preparation can be directly determined, so that the data to be repaired can assist the user in repairing the tooth to be prepared. Therefore, the accuracy of tooth restoration can be improved, and the entire process does not require the preparation of silicone rubber guide plates in advance. It is automated and digitalized, ultimately simplifying the process and reducing time costs.
  • the real tooth model and the standard tooth preparation model can be registered first, and then the teeth to be prepared in the real tooth model and the standard tooth preparation in the standard tooth preparation model can be compared based on the registration results. Compare and obtain the data to be repaired.
  • Figure 4 shows a schematic flowchart of another method for determining dental restoration data provided by an embodiment of the present disclosure.
  • the tooth restoration data determination method may include the following steps.
  • the real tooth model includes the teeth to be prepared
  • the standard preparation model includes the standard preparation corresponding to the teeth to be prepared.
  • the standard preparation is Standard prepared teeth for wearing restorations.
  • S410 is similar to S110 and is not limited here.
  • S420 Register the real tooth model and the standard tooth preparation model to obtain the registration result of the tooth to be prepared and the standard preparation.
  • S420 may specifically include the following steps:
  • the feature point pairs of each tooth can be extracted from the real tooth model and the standard tooth model in response to the acquired mark operation; or the real tooth model and the standard tooth preparation model can be processed to automatically determine the real tooth model and Characteristic point pairs of each tooth on the standard tooth model.
  • the registration direction may be a comparison direction between the real tooth model and the standard tooth preparation model.
  • a feature splicing algorithm can be used to roughly match the feature point pairs according to the preset registration direction to obtain a rough matching result.
  • the rough matching result can be the initial matching result.
  • the rough registration result can be the transformation relationship of feature point pairs.
  • the transformation relationship may include a rotation matrix and/or a translation matrix.
  • the real tooth model and the standard tooth model are meshed models
  • the real tooth model and the standard tooth model can be composed of mesh patches respectively.
  • the real tooth model and the standard tooth model can be composed of mesh patches respectively.
  • Feature point pairs are extracted from the grid, and distances are calculated for each feature point pair to obtain the distances of all feature point pairs in the grid patch, so that the real tooth model and the standard tooth model can be accurately matched based on the distance.
  • the grid matching algorithm can be used to accurately match the real tooth model and the standard tooth model. Specifically, the distances of all feature point pairs in each grid patch can be weighted and summed to obtain the average distance between the real tooth model and the standard tooth model. This average distance can be used to characterize the real tooth model and the standard tooth model. registration degree, and then correct the initial registration result according to the average distance until the average distance is the minimum, and use the initial registration result with the minimum average distance as the registration result of the tooth to be prepared and the standard preparation.
  • S430 may specifically include the following steps:
  • the mesh patches corresponding to the teeth to be prepared and the mesh patches corresponding to the standard preparation can be determined, and these mesh patches can be segmented from the real tooth model to obtain the teeth to be prepared.
  • Models and standard preparation models are used.
  • the normal vector corresponding to each mesh patch on the tooth model to be prepared can be determined, and the normal vector corresponding to each mesh patch on the standard preparation model can be determined. Then, the comparison algorithm can be used to calculate the standard preparation The distance between each mesh patch on the volume model and each mesh face on the tooth model to be prepared is determined along the normal direction, and the distance between each mesh patch is used as the data to be restored of the tooth to be prepared.
  • the data to be repaired may include the data of each position on the tooth to be prepared that needs to be repaired, that is, how much thickness needs to be removed from each position on the tooth to be prepared in order to be repaired into a standard preparation.
  • the data to be repaired is a positive number, it means that the distance is in the positive direction of the normal vector, and the tooth to be prepared corresponding to the tooth model needs to be further ground out. If the data to be repaired is a negative number, it means that the distance In the negative direction of the normal vector, and the tooth to be prepared corresponding to the tooth model of the tooth to be prepared has been excessively ground.
  • FIG. 5 shows a logical schematic diagram of a dental model comparison method provided by an embodiment of the present disclosure.
  • Figure 6 shows a schematic diagram of the model comparison results.
  • the comparison process includes the following steps:
  • the data to be repaired of the teeth to be prepared can be calculated based on the normal vectors of the mesh patches included in the real tooth model and the standard tooth preparation model.
  • the real tooth model and the standard tooth preparation model can be registered, and based on the registration results, the teeth to be prepared in the real tooth model and the standard preparation in the standard tooth preparation model can be Comparison can accurately calculate the data to be repaired, so that based on the accurate data to be repaired, the user can accurately repair the teeth to be prepared, ensuring the accuracy of the tooth repair process.
  • the data to be repaired and the real tooth model and the standard tooth preparation model can be compared and displayed, so that the repair data can be visually displayed to assist the user in tooth repair.
  • FIG. 7 shows a schematic flowchart of yet another method for determining dental restoration data provided by an embodiment of the present disclosure.
  • the real tooth model includes the teeth to be prepared
  • the standard preparation model includes the standard preparation corresponding to the teeth to be prepared.
  • the standard preparation is Standard prepared teeth for wearing restorations.
  • the electronic device can display the gum lines of the real tooth model and the standard tooth preparation model in different colors according to the data to be repaired, thereby comparing and displaying the two models, and The restoration data is displayed numerically on the tooth to be prepared.
  • the data to be repaired on the tooth to be prepared corresponds to the position to be repaired.
  • the corresponding location to be repaired can also be displayed, or after clicking the location to be repaired, the data to be repaired corresponding to the location can be displayed.
  • the data to be repaired is a positive value, it means that the thickness of the teeth to be repaired has been removed. If the data to be repaired is a negative value, it means that the teeth to be repaired have been excessively ground and there is no need to continue to perform thickness grinding.
  • the data to be repaired reaches the preset repair data threshold, it means that the tooth to be prepared has been ground, and the ground tooth to be prepared can be used as the target tooth to be prepared for wearing the restoration.
  • the corresponding relationship between the data to be repaired and the display color of the gum line can be determined in advance. For example, the larger the data to be repaired, the darker the displayed color of the gum line. On the contrary, the larger the data to be repaired, the lighter the displayed color of the gum line.
  • the data to be repaired corresponding to the position is 1.33448, and the gum line between the tooth to be prepared and the standard preparation can be displayed in the corresponding color.
  • the repair data can be visually displayed, and the user can be given sufficient prompts through colors and values, and ultimately assist User performs dental restoration.
  • the user can grind the teeth to be prepared based on the visual display results, and obtain the three-dimensional scan data of the current number of polished teeth, and the scan data of the current number of polished teeth.
  • Teeth serve as standard preparation teeth, where standard preparation teeth are used to wear dental crowns.
  • the electronic device can compare the new data to be repaired with the preset repair data threshold. If the new data to be repaired is within the preset repair data threshold interval, it is determined that the tooth to be prepared has been ground. , the tooth to be prepared that has been ground the current number of times can be directly used as the standard tooth to be prepared, so that the user can subsequently wear a crown on the standard tooth to be prepared.
  • the preset restoration data threshold interval may be a numerical interval used to determine whether the tooth to be prepared has been ground.
  • the preset repair data threshold interval can be [-0.2, 0.2].
  • FIG. 8 shows a logical schematic diagram of obtaining the target preparation teeth provided by an embodiment of the present disclosure.
  • the comparison process includes the following steps:
  • the three-dimensional scanning data of the teeth that are removed each time can be obtained, and it is determined whether the teeth to be prepared each time that are removed meet the standards. Accurate, resulting in target prepared teeth that meet standards for wearing restorations.
  • the dental restoration data determining device may be an electronic device or a server.
  • electronic devices may include tablet computers, desktop computers, laptops and other devices with communication functions, and may also include devices simulated by virtual machines or simulators.
  • the server can be a server cluster or a cloud server.
  • Figure 9 shows a schematic structural diagram of a dental restoration data determination device provided by an embodiment of the present disclosure.
  • the tooth restoration data determination device 900 may include: a model acquisition module 910 and a restoration data determination module 920 .
  • the model acquisition module 910 is used to obtain the real tooth model of the target object and the standard preparation model corresponding to the real tooth model, where the real tooth model includes the teeth to be prepared, and the standard preparation model includes the standard preparation corresponding to the teeth to be prepared.
  • a standard preparation is a standard prepared tooth for wearing a restoration;
  • the repair data determination module 920 is used to compare the teeth to be prepared in the real tooth model and the standard preparation in the standard tooth preparation model to obtain the data to be repaired of the teeth to be prepared, where the data to be repaired is the tooth to be prepared. The tooth is restored to the data to be removed corresponding to the standard preparation.
  • a dental restoration data determination device first, obtains a real tooth model of the target object and a standard tooth preparation model corresponding to the real tooth model, wherein the real tooth model includes teeth to be prepared, and the standard tooth preparation model includes teeth to be prepared.
  • the standard preparation corresponding to the prepared tooth which is the standard prepared tooth used to wear the restoration; then, compare the prepared tooth in the real tooth model with the standard preparation in the standard prepared tooth model, and obtain The data to be repaired of the tooth to be prepared, where the data to be repaired is the data to be removed corresponding to the tooth to be prepared to be repaired to a standard preparation body.
  • the data to be repaired to restore the tooth to be prepared to the standard preparation can be directly determined, so that the data to be repaired can assist the user in repairing the tooth to be prepared. Therefore, the accuracy of tooth restoration can be improved, and the entire process does not require the preparation of silicone rubber guide plates in advance. It is automated and digitalized, ultimately simplifying the process and reducing time costs. Book.
  • the model acquisition module 910 may include:
  • a morphological data acquisition unit for acquiring morphological data of the teeth to be prepared in the real tooth model and morphological data of other teeth except the teeth to be prepared;
  • a standard preparation determination unit is used to select a standard preparation from a plurality of preparations obtained in advance based on the morphological data of the tooth to be prepared and the morphological data of other teeth except the tooth to be prepared;
  • the standard preparation model generation unit is used to generate a standard preparation model based on the morphological data of the standard preparation and the morphological data of other teeth except the teeth to be prepared.
  • the repair data determination module 920 may include:
  • the registration unit is used to register the real tooth model and the standard tooth preparation model to obtain the registration result of the tooth to be prepared and the standard preparation;
  • the comparison unit is used to compare the teeth to be prepared in the real tooth model and the standard preparation in the standard tooth preparation model based on the registration results to obtain the data to be restored of the teeth to be prepared.
  • the registration unit may be used to extract feature point pairs of each tooth from the real tooth model and the standard tooth model;
  • the initial matching result is corrected based on the distance of all feature point pairs on the grid patch, and the registration result of the tooth to be prepared and the standard preparation is obtained.
  • the comparison unit can be specifically used to segment the tooth model to be prepared from the real tooth model according to the registration result, and segment the standard preparation model from the standard tooth preparation model;
  • the device further includes: a display module
  • the display module is used to compare and display the real tooth model with the standard tooth preparation model, and display the data to be repaired.
  • the device further includes:
  • the iteration module is used to reacquire a new real tooth model of the target object when the teeth to be prepared have been ground for the current number of times, and to compare the teeth to be prepared in the new real tooth model and the teeth in the standard tooth preparation model. Compare the standard preparations to obtain new data to be repaired;
  • the target preparation tooth acquisition module is used to determine that the morphological data of the teeth to be prepared that have been ground for the current number of times is consistent with the morphological data of the standard preparation if the new data to be restored is within the preset restoration data threshold interval, and the morphological data of the teeth to be prepared will be
  • the teeth to be prepared for the current number of grindings are used as standard preparation teeth, where the standard preparation teeth are used to wear restorations.
  • the dental restoration data determining device 900 shown in Figure 9 can perform each step in the method embodiment shown in Figures 1 to 8 and implement each step in the method embodiment shown in Figures 1 to 8 The process and effects will not be described in detail here.
  • Figure 10 shows a schematic structural diagram of a dental repair data determination device provided by an embodiment of the present disclosure.
  • the dental restoration data determination device may include a processor 1001 and a memory 1002 storing computer program instructions.
  • processor 1001 may include a central processing unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits according to the embodiments of the present application.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • Memory 1002 may include bulk storage for information or instructions.
  • the memory 1002 may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a Universal Serial Bus (USB) drive, or both. A combination of the above.
  • Memory 1002 may include removable or non-removable (or fixed) media, where appropriate.
  • Memory 1002 may be internal or external to the integrated gateway device, where appropriate.
  • memory 1002 is non-volatile solid-state memory.
  • the memory 1002 includes read-only memory (Read-Only Memory, ROM).
  • the ROM can be a mask-programmed ROM, a programmable ROM (Programmable ROM, PROM), an erasable PROM (Electrically Programmable ROM, EPROM), an electrically erasable PROM (Electrically Erasable Programmable ROM, EEPROM). ), electrically rewritable ROM (Electrically Alterable ROM, EAROM) or flash memory, or a combination of two or more of these.
  • the processor 1001 reads and executes the computer program instructions stored in the memory 1002 to execute the steps of the tooth restoration data determination method provided by the embodiment of the present disclosure.
  • the dental restoration data determination device may further include a transceiver 1003 and a bus 1004. Among them, as shown in Figure 10, the processor 1001, the memory 1002 and the transceiver 1003 are connected through the bus 1004 and complete communication with each other.
  • Bus 1004 includes hardware, software, or both.
  • the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side BUS (FSB), an Ultra Transmission (Hyper Transport, HT) interconnect, Industrial Standard Architecture (ISA) bus, infinite bandwidth interconnect, Low Pin Count (LPC) bus, memory bus, Micro Channel Architecture , MCA) bus, Peripheral Component Interconnect (PCI) bus, PCI-Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association part (Video Electronics Standards Association Local Bus (VLB) bus or other suitable bus or a combination of two or more of these.
  • bus 1004 may include one or more buses.
  • the following is an example of a computer-readable storage medium provided by an embodiment of the present disclosure.
  • the computer-readable storage medium belongs to the same inventive concept as the dental restoration data determination method of the above-mentioned embodiments.
  • the embodiment of the computer-readable storage medium For details that are not described in detail, reference may be made to the above embodiments of the tooth restoration data determination method.
  • This embodiment provides a storage medium containing computer-executable instructions.
  • the computer can The execution instructions, when executed by the computer processor, are used to execute a method for determining dental restoration data, the method including:
  • the real tooth model of the target object and the standard preparation model corresponding to the real tooth model wherein the real tooth model includes the teeth to be prepared, the standard preparation model includes the standard preparation corresponding to the teeth to be prepared, and the standard preparation is used Standard prepared teeth wearing restorations;
  • the embodiments of the present disclosure provide a storage medium containing computer-executable instructions.
  • the computer-executable instructions are not limited to the above method operations. They can also perform the dental restoration data determination method provided by any embodiment of the disclosure. Related operations.
  • the present disclosure can be implemented with the help of software and necessary general hardware. Of course, it can also be implemented with hardware, but in many cases the former is a better implementation. . Based on this understanding, the technical solution of the present disclosure can be embodied in the form of a software product in nature or in part that contributes to the existing technology.
  • the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk.
  • ROM read-only memory
  • RAM random access memory
  • FLASH flash memory
  • hard disk or optical disk etc., including a number of instructions to make a computer cloud platform (which can be a personal Computer, server, or network cloud platform, etc.) executes the tooth restoration data determination method provided by various embodiments of the present disclosure.
  • the tooth restoration data determination method provided by the present disclosure can improve the accuracy of tooth restoration, and the entire process does not require pre-preparation of silicone rubber guide plates, and is automated and digitally implemented, ultimately simplifying the process and reducing time costs.

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Abstract

本公开涉及一种牙齿修复数据确定方法、装置、设备及存储介质。首先，获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；最后，对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是由待备牙牙齿修复到标准制备体所对应的待磨除数据。由此，可以提高牙齿修复的准确性，并且，整个过程无需预先制备硅橡胶导板，是自动化且数字化实现的，最终简化了流程并降低了时间成本。

Description

牙齿修复数据确定方法、装置、设备及存储介质
本公开要求2022年6月16日提交中国专利局、申请号为202210687367X、发明名称为“牙齿修复数据确定方法、装置、设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开实施例涉及牙齿修复技术领域，尤其涉及一种牙齿修复数据确定方法、装置、设备及存储介质。
背景技术
在牙齿修复领域，当用户的牙齿出现病变时，需要针对病变牙齿设计备牙牙齿，并在设计好的备牙牙齿上佩戴修复体，从而完成牙齿修复过程。
现有技术中备牙牙齿的设计方法一般是，利用预先准备好的硅橡胶导板，并通过用户肉眼观察判断备牙牙齿是否合格，从而得到设计好的备牙牙齿。然而，目前的备牙牙齿的设计方法的缺点是：由于需要用户肉眼观察，容易出现肉眼错判的情况，并且，由于备牙牙齿的设计过程需要制备硅橡胶导板，增加了备牙牙齿的设计步骤，提高了备牙牙齿的成本。
发明内容
(一)要解决的技术问题
为了解决上述技术问题或者至少部分地解决上述技术问题，本公开提供了一种牙齿修复数据确定方法、装置、设备及存储介质。
(二)技术方案
本公开实施例提供了一种基于牙齿修复数据确定方法，所述方法包括：
获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；
对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。
本公开实施例还提供了一种牙齿修复数据确定装置，所述装置包括：
模型获取模块，用于获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；
修复数据确定模块，用于对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。
本公开实施例还提供了一种牙齿修复数据确定设备，该设备包括：
一个或多个处理器；
存储装置，用于存储一个或多个程序，
当一个或多个程序被一个或多个处理器执行，使得一个或多个处理器实现第一方面所提供的牙齿修复数据确定方法。
本公开实施例还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行如本公开实施例提供的基于牙齿修复数据确定方法。
(三)有益效果
本公开实施例提供的上述技术方案与现有技术相比具有如下优点：
本公开实施例提供的牙齿修复数据确定方法、装置、设备及存储介质，首先，获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包 括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；然后，对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。由此，通过将待备牙牙齿和标准制备体进行对比的方式，就可以直接确定将待备牙牙齿修复到标准制备体的待修复数据，使得通过待修复数据辅助用户修复待备牙牙齿，因此可以提高牙齿修复的准确性，并且，整个过程无需预先制备硅橡胶导板，是自动化且数字化实现的，最终简化了流程并降低了时间成本。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本公开一个或多个实施例中的一种牙齿修复数据确定方法的流程示意图；
图2是本公开一个或多个实施例中的一种真实牙齿模型的示意图；
图3是本公开一个或多个实施例中的一种标准备牙模型的示意图；
图4是本公开一个或多个实施例中的一种牙齿修复数据确定方法的流程示意图；
图5是本公开一个或多个实施例中的一种牙齿模型对比的逻辑示意图；
图6是本公开一个或多个实施例中的一种模型对比结果的示意图；
图7是本公开一个或多个实施例中的一种牙齿修复数据确定方法的流程示意图；
图8是本公开一个或多个实施例中的一种获取目标备牙牙齿的逻 辑示意图；
图9是本公开一个或多个实施例中的一种牙齿修复数据确定装置的结构示意图；
图10是本公开一个或多个实施例中的一种牙齿修复数据确定设备的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
在牙齿修复领域内，当用户的牙齿出现病变时，需要针对病变牙齿进行一系列的削磨修正等操作，得到设计好的备牙牙齿，以便在设计好的备牙牙齿上牢固的安装、粘接全冠、贴面或嵌体等牙齿修复体。例如，在全冠修复备牙过程，需要先将病变牙齿磨出颌面，使得病变牙齿平整，然后，再将病变牙齿的颊舌面以及近远中面逐渐磨除，并尽可能消除倒凹，使轴壁与就位道平行，从而得到设计好的备牙牙齿，并在设计好的备牙牙齿上佩戴牙冠。
需要说明的是，备牙牙齿的设计过程对精度要求较高，尤其是在做前牙修复时，前牙的颌面或坡面上非常小误差，都会直接影响修复体安装固定的牢固性、方向角度的正确性以及美观性。
但是，目前的备牙牙齿的设计方法容易出现肉眼错判的情况，且由于需要制备硅橡胶导板，使得备牙牙齿的设计步骤更繁琐，提高了备牙牙齿的成本。
为了解决上述问题，本公开实施例提供了一种牙齿修复数据确定方法、装置、设备及存储介质。
下面结合图1至图7对本公开实施例提供的牙齿修复数据确定方法进行说明。在本公开实施例中，该牙齿修复数据确定方法可以由电子设备或服务器执行。其中，电子设备可以包括平板电脑、台式计算机、笔记本电脑等具有通信功能的设备，也可以包括虚拟机或者模拟 器模拟的设备。服务器可以是服务器集群也可以是云服务器。
图1示出了本公开实施例提供的一种牙齿修复数据确定方法的流程示意图。
如图1所示，该牙齿修复数据确定方法可以包括如下步骤。
S110、获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿。
在本公开实施例中，当需要对目标对象进行牙齿修复时，电子设备可以获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，使得根据真实牙齿模型中的待备牙牙齿的形态数据和标准备牙模型中标准制备体的形态数据，确定待备牙牙齿所需修复的数据。
在本公开实施例中，真实牙齿模型是指目标对象的术前模型，该模型可以包括待备牙牙齿和除了待备牙牙齿之外的其他牙齿。其中，待备牙牙齿可以理解为需要进行修复的病变牙齿。
在一些实施例中，真实牙齿模型可以是预先存储的牙齿模型。
在另一些实施例中，可以通过口内扫描仪实时扫描目标对象的口腔内的牙齿，则电子设备可以获取真实牙齿模型。
图2为真实牙齿模型的示意图，该真实牙齿模型包括待备牙牙齿210和除了待备牙牙齿210之外的其他牙齿。
在本公开实施例中，标准备牙模型是辅助用户进行牙齿修复的牙齿模型，该模型可以包括标准制备体和除了标准制备体之外的其他牙齿。
可以理解的是，标准制备体可以为待备牙牙齿的修复过程提供参考。若将待备牙牙齿的形态修复至标准制备体的形态，则说明此次修复的待备牙牙齿可以用于佩戴修复体，从而完成病变牙齿的修复过程。
在本公开实施例中，可选的，S110中“获取真实牙齿模型对应的标准备牙模型”可以通过如下方式实现：
S1101、获取真实牙齿模型中待备牙牙齿的形态数据以及除待备牙牙齿之外的其他牙齿的形态数据；
S1102、根据待备牙牙齿的形态数据、除待备牙牙齿之外的其他牙齿的形态数据，从预先获取的多个制备体中选择标准制备体；
S1103、基于标准制备体的形态数据以及除待备牙牙齿之外的其他牙齿的形态数据，生成标准备牙模型。
具体的，电子设备可以将真实牙齿模型导入第三方设计软件，通过第三方设计软件进行修复体(如牙冠)设计，具体可以根据每个牙齿的形态数据，然后选择标准制备体并确定标准制备体对应的形态数据，最终根据标准制备体的形态数据以及除待备牙牙齿之外的其他牙齿的形态数据，生成标准备牙模型。
其中，预先获取的多个制备体可以包括不同位置的牙齿设计的制备体。
其中，每个牙齿的形态数据用于表征每个牙齿的空间形态。可选的，每个牙齿的形态数据可以包括每个牙齿的厚度、位置、形状、尺寸等，在此不做限制。
图3为标准备牙模型的示意图，该标准备牙模型包括标准制备体310和除了标准制备体310之外的其他牙齿。
由此，在本公开实施例中，可以根据真实牙齿模型中各个牙齿的形态数据，确定出相适应的标准制备体，从而生成与真实牙齿相适应的标准备牙模型。
S120、对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。
在本公开实施例中，电子设备可以将真实牙齿模型和标准备牙模型输入口内扫描软件，利用口内扫描软件对待备牙牙齿和标准制备体进行对比，从而确定出待备牙牙齿的待修复数据，使得进一步将待修复数据反馈给用户，则用户可以基于待修复数据修复待备牙牙齿。
在一些实施例中，可以直接将待备牙牙齿和标准制备体的形态数据进行对比，得到待修复数据。
在另一些实施例中，可以将待备牙牙齿和标准制备体进行粗略配准以及精细配准，然后根据配准结果对待备牙牙齿和标准制备体进行 对比，得到待修复数据。
在本公开实施例中，待修复数据可以用于表征待备牙牙齿所需修复的数据。可选的，待修复数据可以是待磨除厚度、待磨除角度、待磨除厚度等，在此不做限制。
本公开实施例的一种牙齿修复数据确定方法，首先，获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；然后，对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。由此，通过将待备牙牙齿和标准制备体进行对比的方式，就可以直接确定将待备牙牙齿修复到标准制备体的待修复数据，使得通过待修复数据辅助用户修复待备牙牙齿，因此可以提高牙齿修复的准确性，并且，整个过程无需预先制备硅橡胶导板，是自动化且数字化实现的，最终简化了流程并降低了时间成本。
在本公开另一种实施方式中，可以先对真实牙齿模型和标准备牙模型进行配准，然后根据配准结果对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待修复数据。
图4示出了本公开实施例提供的另一种牙齿修复数据确定方法的流程示意图。
如图4所示，该牙齿修复数据确定方法可以包括如下步骤。
S410、获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿。
其中，S410与S110相似，在此不做限制。
S420、对真实牙齿模型和标准备牙模型进行配准，得到待备牙牙齿与标准制备体的配准结果。
在本公开实施例中，可选的，S420具体可以包括如下步骤：
S4201、从真实牙齿模型和标准牙齿模型上提取各牙齿的特征点对；
S4202、根据预设配准方向，对所述特征点对进行匹配，得到所述真实牙齿模型和所述标准牙齿模型的初始匹配结果；
S4203、计算真实牙齿模型和标准牙齿模型分别包括的网格面片上特征点对的距离；
S4204、基于网格面片上的所有特征点对的距离修正初始匹配结果，得到待备牙牙齿与标准制备体的配准结果。
针对S4201，可以响应于获取到的标记操作，从真实牙齿模型和标准牙齿模型上提取各牙齿的特征点对；或者，可以对真实牙齿模型和标准备牙模型进行处理，自动确定真实牙齿模型和标准牙齿模型上各牙齿的特征点对。
其中，配准方向可以是真实牙齿模型和标准备牙模型的对比方向。
针对S4202，可以采用特征拼接算法，根据预设配准方向，对特征点对进行粗略匹配，得到粗略匹配结果，该粗略匹配结果可以是初始匹配结果。
其中，粗略配准结果可以是特征点对的变换关系。可选的，该变换关系可以包括旋转矩阵和/或平移矩阵。
针对S4203，由于真实牙齿模型和标准牙齿模型是网格化模型，真实牙齿模型和标准牙齿模型可以分别由网格面片构成，则可以从真实牙齿模型和标准牙齿模型分别包括的网格面片中提取特征点对，针对每个特征点对，计算距离，得到网格面片中所有特征点对的距离，使得根据距离继续对真实牙齿模型和标准牙齿模型进行精准匹配。
针对S4204，在粗匹配的基础上，可以采用网格匹配算法对真实牙齿模型和标准牙齿模型进行精准匹配。具体的，可以对各网格面片中所有特征点对的距离进行加权求和，得到真实牙齿模型和标准牙齿模型的距离平均值，该距离平均值可以用于表征真实牙齿模型和标准牙齿模型的配准度，然后根据该距离平均值修正初始配准结果，直至距离平均值最小，将距离平均值最小的初始配准结果作为待备牙牙齿与标准制备体的配准结果。
需要说明的是，上述配准方法可以与手动配准方法结合，保证待 备牙牙齿与标准制备体的配准过程能够持续进行，直至得到匹配结果。
S430、基于配准结果，对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据。
在本公开实施例中，可选的，S430具体可以包括如下步骤：
S4301、根据配准结果，从真实牙齿模型中分割出待备牙牙齿模型，以及从标准备牙模型中分割出标准制备体模型；
S4302、基于待备牙牙齿模型上各网格面片分别对应的法向量以及标准制备体模型上各网格面片分别对应的法向量，计算待备牙牙齿模型上各网格面片与标准制备体模型上各网格面片的距离；
S4303、将待备牙牙齿模型上各网格面片与标准制备体模型上各网格面片的距离，作为待备牙牙齿的待修复数据。
针对S4301，可以根据配准结果，确定待备牙牙齿对应的网格面片以及标准制备体对应的网格面片，并从真实牙齿模型中分割出这些网格面片，得到待备牙牙齿模型和标准制备体模型。
针对S4302，首先，可以确定待备牙牙齿模型上各网格面片分别对应的法向量，以及确定标准制备体模型上各网格面片分别对应的法向量，然后，利用对比算法计算标准制备体模型上各网格面片沿法线方向到待备牙牙齿模型上各网格面的距离，并将各网格面片的距离作为待备牙牙齿的待修复数据。
其中，待修复数据可以包括待备牙牙齿上各个位置所需修复的数据，也就是说，将待备牙牙齿上的每个位置需要磨除多少厚度才能修复成标准制备体。
需要说明的是，若待修复数据为正数，则说明距离在法向量的正方向，需要对待备牙牙齿模型对应的待备牙牙齿进一步的磨出，若待修复数据为负数，则说明距离在法向量的负方向，且待备牙牙齿模型对应的待备牙牙齿已经磨除过度。
为了便于理解上述对比过程，图5示出了本公开实施例提供了一种牙齿模型对比方法的逻辑示意图。图6示出了模型对比结果的示意图。
如图5所示，该对比过程包括如下步骤：
S510、获取真实牙齿模型；
S520、获取标准备牙模型；
S530、对真实牙齿模型和标准备牙模型进行配准。
具体的，若配准成功，则执行S540，否则，结束。
S540、显示网格。
具体的，可以基于真实牙齿模型和标准备牙模型所包括的网格面片的法向量，计算待备牙牙齿的待修复数据。
需要说明的是，图5中各个步骤的具体实现方式可以参见前述描述，在此不做赘述。
如图6所示，将真实牙齿模型和标准备牙模型配准之后，标准制备体610和待备牙牙齿620存在厚度差。
由此，在本公开实施例中，可以对真实牙齿模型和标准备牙模型进行配准，并根据配准结果对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，从而准确的计算出待修复数据，使得根据精准的待修复数据，辅助用户精准修复待备牙牙齿，保证了牙齿修复过程的精准性。
在本公开又一种实施方式中，在得到待修复数据之后，可以对待修复数据，以及将真实牙齿模型与标准备牙模型进行对比显示，使得将修复数据进行可视化展示，辅助用户进行牙齿修复。
图7示出了本公开实施例提供的又一种牙齿修复数据确定方法的流程示意图。
S710、获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿。
S720、对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是由待备牙牙齿修复到标准制备体所对应的待磨除数据。
其中，S710～S720的具体实现方式可以参见前述实施例的描述，在此不做赘述。
S730、将真实牙齿模型与标准备牙模型进行对比显示，以及显示待修复数据。
在本公开实施例中，电子设备在得到待修复数据之后，可以根据待修复数据，将真实牙齿模型与标准备牙模型的牙龈线以不同颜色进行显示，从而对比显示两个模型，并将待修复数据以数字的形式显示在待备牙牙齿上。
具体的，待备牙牙齿上的待修复数据与待修复位置对应。可选的，在显示待修复数据的同时，还可以显示对应的待修复位置，或者，在点击待修复位置之后，可以显示该位置对应的待修复数据。
需要说明的是，若待修复数据是正值，则说明待修复牙齿进行厚度磨除，若待修复数据是负值，则说明待修复牙齿磨除过度，无需继续进行厚度磨除。当待修复数据达到预先设置的修复数据阈值时，则说明待备牙牙齿已磨除好，可以将磨除好的待备牙牙齿作为用于佩戴修复体的目标备牙牙齿。
具体的，可以预先确定待修复数据与牙龈线的显示颜色的对应关系。例如，待修复数据越大，牙龈线的显示颜色越深，相反的，待修复数据越大，牙龈线的显示颜色越浅。
如图6所示，在点击待修复位置之后，该位置对应的待修复数据为1.33448，且待备牙牙齿与标准制备体之间的牙龈线可以用对应的颜色展示。
由此，在本公开实施例中，通过将真实牙齿模型与标准备牙模型进行对比显示，以及显示待修复数据，可以将修复数据进行可视化展示，通过颜色以及数值给用户足够的提示，最终辅助用户进行牙齿修复。
S740、在待备牙牙齿已磨除当前次数的情况下，获取目标对象的新的真实牙齿模型，以及对新的真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到新的待修复数据。
在本公开实施例中，电子设备在进行可视化展示之后，用户可以基于可视化展示结果对待备牙牙齿进行磨除，并获取已磨除当前次数的三维扫描数据，并已磨除当前次数的扫描数据生成新的真实牙齿模 型，从而获取目标对象的新的真实牙齿模型，并将新的真实牙齿模型中的待备牙牙齿和新的标准备牙模型中的标准制备体进行重新对比，得到新的待修复数据。
S750、若新的待修复数据位于预先设置的修复数据阈值区间，则确定已磨除当前次数的待备牙牙齿的形态数据与标准制备体的形态数据一致，将已磨除当前次数的待备牙牙齿作为标准备牙牙齿，其中，标准备牙牙齿用于佩戴牙冠。
在本公开实施例中，电子设备可以将新的待修复数据与预先设置的修复数据阈值比较，若新的待修复数据位于预先设置的修复数据阈值区间，则确定待备牙牙齿已磨除好，可以直接将已磨除当前次数的待备牙牙齿作为标准备牙牙齿，使得用户后续在标准备牙牙齿上佩戴牙冠。
在本公开实施例中，预先设置的修复数据阈值区间可以是用于确定待备牙牙齿是否已磨除好的数值区间。
可选的，预先设置的修复数据阈值区间可以为[-0.2,0.2]。
为了便于理解获得目标备牙牙齿的过程，图8示出了本公开实施例提供了一种获取目标备牙牙齿的逻辑示意图。
如图8所示，该对比过程包括如下步骤：
S810、获取已磨除当前次数对应的新的真实牙齿模型。
S820、对新的真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比。
S830、判断新的真实牙齿模型中的待备牙牙齿是否与标准备牙模型中的标准制备体重合。
具体的，若新的真实牙齿模型中的待备牙牙齿与标准备牙模型中的标准制备体重合，则执行S840，否则返回执行S810。
S840、将已磨除当前次数的待备牙牙齿作为标准备牙牙齿。
需要说明的是，图8中各个步骤的具体实现方式可以参见前述描述，在此不做赘述。
由此，在本公开实施例中，在牙齿修复过程中，可以获取每次磨除的牙齿的三维扫描数据，并确定每次磨除的待备牙牙齿是否符合标 准，从而得到符合标准的用于佩戴修复体的目标备牙牙齿。
本公开实施例还提供了一种用于实现上述的牙齿修复数据确定方法的牙齿修复数据确定装置，下面结合图9进行说明。在本公开实施例中，该牙齿修复数据确定装置可以为电子设备或服务器。其中，电子设备可以包括平板电脑、台式计算机、笔记本电脑等具有通信功能的设备，也可以包括虚拟机或者模拟器模拟的设备。服务器可以是服务器集群或者云服务器。
图9示出了本公开实施例提供的一种牙齿修复数据确定装置的结构示意图。
如图9所示，牙齿修复数据确定装置900可以包括：模型获取模块910和修复数据确定模块920。
模型获取模块910，用于获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；
修复数据确定模块920，用于对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。
本公开实施例的一种牙齿修复数据确定装置，首先，获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；然后，对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。由此，通过将待备牙牙齿和标准制备体进行对比的方式，就可以直接确定将待备牙牙齿修复到标准制备体的待修复数据，使得通过待修复数据辅助用户修复待备牙牙齿，因此可以提高牙齿修复的准确性，并且，整个过程无需预先制备硅橡胶导板，是自动化且数字化实现的，最终简化了流程并降低了时间成 本。
在本公开一些实施例中，模型获取模块910可以包括：
形态数据获取单元，用于获取真实牙齿模型中待备牙牙齿的形态数据以及除待备牙牙齿之外的其他牙齿的形态数据；
标准制备体确定单元，用于根据待备牙牙齿的形态数据、除待备牙牙齿之外的其他牙齿的形态数据，从预先获取的多个制备体中选择标准制备体；
标准备牙模型生成单元，用于基于标准制备体的形态数据以及除待备牙牙齿之外的其他牙齿的形态数据，生成标准备牙模型。
在本公开一些实施例中，修复数据确定模块920可以包括：
配准单元，用于对真实牙齿模型和标准备牙模型进行配准，得到待备牙牙齿与标准制备体的配准结果；
对比单元，用于基于配准结果，对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据。
在本公开一些实施例中，配准单元具体可以用于，从真实牙齿模型和标准牙齿模型上提取各牙齿的特征点对；
根据预设配准方向，对特征点对进行匹配，得到真实牙齿模型和标准牙齿模型的初始匹配结果；
计算真实牙齿模型和标准牙齿模型分别包括的网格面片上特征点对的距离；
基于网格面片上的所有特征点对的距离修正初始匹配结果，得到待备牙牙齿与标准制备体的配准结果。
在本公开一些实施例中，对比单元具体可以用于，根据配准结果，从真实牙齿模型中分割出待备牙牙齿模型，以及从标准备牙模型中分割出标准制备体模型；
基于待备牙牙齿模型上各网格面片分别对应的法向量以及标准制备体模型上各网格面片分别对应的法向量，计算待备牙牙齿模型上各网格面片与标准制备体模型上各网格面片的距离，并将待备牙牙齿模型上各网格面片与标准制备体模型上各网格面片的距离，作为待备牙 牙齿的待修复数据。
在本公开一些实施例中，该装置还包括：显示模块；
显示模块，用于将真实牙齿模型与标准备牙模型进行对比显示，以及显示待修复数据。
在本公开一些实施例中，该装置还包括：
迭代模块，用于在待备牙牙齿已磨除当前次数的情况下，重新获取目标对象的新的真实牙齿模型，以及对新的真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到新的待修复数据；
目标备牙牙齿获取模块，用于若新的待修复数据位于预先设置的修复数据阈值区间，则确定已磨除当前次数的待备牙牙齿的形态数据与标准制备体的形态数据一致，将已磨除当前次数的待备牙牙齿作为标准备牙牙齿，其中，标准备牙牙齿用于佩戴修复体。
需要说明的是，图9所示的牙齿修复数据确定装置900可以执行图1至图8所示的方法实施例中的各个步骤，并且实现图1至图8所示的方法实施例中的各个过程和效果，在此不做赘述。
图10示出了本公开实施例提供的一种牙齿修复数据确定设备的结构示意图。
如图10所示，该牙齿修复数据确定设备可以包括处理器1001以及存储有计算机程序指令的存储器1002。
具体地，上述处理器1001可以包括中央处理器(CPU)，或者特定集成电路(Application Specific Integrated Circuit，ASIC)，或者可以被配置成实施本申请实施例的一个或多个集成电路。
存储器1002可以包括用于信息或指令的大容量存储器。举例来说而非限制，存储器1002可以包括硬盘驱动器(Hard Disk Drive，HDD)、软盘驱动器、闪存、光盘、磁光盘、磁带或通用串行总线(Universal Serial Bus，USB)驱动器或者两个及其以上这些的组合。在合适的情况下，存储器1002可包括可移除或不可移除(或固定)的介质。在合适的情况下，存储器1002可在综合网关设备的内部或外部。在特定实施例中，存储器1002是非易失性固态存储器。在特定实施例中，存储器 1002包括只读存储器(Read-Only Memory，ROM)。在合适的情况下，该ROM可以是掩模编程的ROM、可编程ROM(Programmable ROM，PROM)、可擦除PROM(Electrical Programmable ROM，EPROM)、电可擦除PROM(Electrically Erasable Programmable ROM，EEPROM)、电可改写ROM(Electrically Alterable ROM，EAROM)或闪存，或者两个或及其以上这些的组合。
处理器1001通过读取并执行存储器1002中存储的计算机程序指令，以执行本公开实施例所提供的牙齿修复数据确定方法的步骤。
在一个示例中，该牙齿修复数据确定设备还可包括收发器1003和总线1004。其中，如图10所示，处理器1001、存储器1002和收发器1003通过总线1004连接并完成相互间的通信。
总线1004包括硬件、软件或两者。举例来说而非限制，总线可包括加速图形端口(Accelerated Graphics Port，AGP)或其他图形总线、增强工业标准架构(Extended Industry Standard Architecture，EISA)总线、前端总线(Front Side BUS，FSB)、超传输(Hyper Transport，HT)互连、工业标准架构(Industrial Standard Architecture，ISA)总线、无限带宽互连、低引脚数(Low Pin Count，LPC)总线、存储器总线、微信道架构(Micro Channel Architecture，MCA)总线、外围控件互连(Peripheral Component Interconnect，PCI)总线、PCI-Express(PCI-X)总线、串行高级技术附件(Serial Advanced Technology Attachment，SATA)总线、视频电子标准协会局部(Video Electronics Standards Association Local Bus，VLB)总线或其他合适的总线或者两个或更多个以上这些的组合。在合适的情况下，总线1004可包括一个或多个总线。尽管本申请实施例描述和示出了特定的总线，但本申请考虑任何合适的总线或互连。
以下是本公开实施例提供的计算机可读存储介质的实施例，该计算机可读存储介质与上述各实施例的牙齿修复数据确定方法属于同一个发明构思，在计算机可读存储介质的实施例中未详尽描述的细节内容，可以参考上述牙齿修复数据确定方法的实施例。
本实施例提供一种包含计算机可执行指令的存储介质，计算机可 执行指令在由计算机处理器执行时用于执行一种牙齿修复数据确定方法，该方法包括：
获取目标对象的真实牙齿模型和真实牙齿模型对应的标准备牙模型，其中，真实牙齿模型包括待备牙牙齿，标准备牙模型包括待备牙牙齿对应的标准制备体，标准制备体是用于佩戴修复体的标准备牙牙齿；
对真实牙齿模型中的待备牙牙齿和标准备牙模型中的标准制备体进行对比，得到待备牙牙齿的待修复数据，其中，待修复数据是将待备牙牙齿修复到标准制备体所对应的待磨除数据。
当然，本公开实施例所提供的一种包含计算机可执行指令的存储介质，其计算机可执行指令不限于如上的方法操作，还可以执行本公开任意实施例所提供的牙齿修复数据确定方法中的相关操作。
通过以上关于实施方式的描述，所属领域的技术人员可以清楚地了解到，本公开可借助软件及必需的通用硬件来实现，当然也可以通过硬件实现，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、闪存(FLASH)、硬盘或光盘等，包括若干指令用以使得一台计算机云平台(可以是个人计算机，服务器，或者网络云平台等)执行本公开各个实施例所提供的牙齿修复数据确定方法。
注意，上述仅为本公开的较佳实施例及所运用技术原理。本领域技术人员会理解，本公开不限于这里的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本公开的保护范围。因此，虽然通过以上实施例对本公开进行了较为详细的说明，但是本公开不仅仅限于以上实施例，在不脱离本公开构思的情况下，还可以包括更多其他等效实施例，而本公开的范围由所附的权利要求范围决定。
工业实用性
本公开提供的牙齿修复数据确定方法，可以提高牙齿修复的准确性，并且，整个过程无需预先制备硅橡胶导板，是自动化且数字化实现的，最终简化了流程并降低了时间成本。

Claims (10)

  1. 一种牙齿修复数据确定方法，其特征在于，包括：
    获取目标对象的真实牙齿模型和所述真实牙齿模型对应的标准备牙模型，其中，所述真实牙齿模型包括待备牙牙齿，所述标准备牙模型包括所述待备牙牙齿对应的标准制备体，所述标准制备体是用于佩戴修复体的标准备牙牙齿；
    对所述真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到所述待备牙牙齿的待修复数据，其中，所述待修复数据是将所述待备牙牙齿修复到所述标准制备体所对应的待磨除数据。
  2. 根据权利要求1所述的方法，其特征在于，获取所述真实牙齿模型对应的标准备牙模型，包括：
    获取所述真实牙齿模型中所述待备牙牙齿的形态数据以及除所述待备牙牙齿之外的其他牙齿的形态数据；
    根据所述待备牙牙齿的形态数据、除所述待备牙牙齿之外的其他牙齿的形态数据，从预先获取的多个制备体中选择所述标准制备体；
    基于所述标准制备体的形态数据以及除所述待备牙牙齿之外的其他牙齿的形态数据，生成所述标准备牙模型。
  3. 根据权利要求1所述的方法，其特征在于，所述对所述真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到所述待备牙牙齿的待修复数据，包括：
    对所述真实牙齿模型和所述标准备牙模型进行配准，得到所述待备牙牙齿与所述标准制备体的配准结果；
    基于所述配准结果，对所述真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到所述待备牙牙齿的待修复数据。
  4. 根据权利要求3所述的方法，其特征在于，所述对所述真实牙齿模型和所述标准备牙模型进行配准，得到所述待备牙牙齿与所述标准制备体的配准结果，包括：
    从所述真实牙齿模型和所述标准牙齿模型上提取各牙齿的特征点对；
    根据预设配准方向，对所述特征点对进行匹配，得到所述真实牙齿模型和所述标准牙齿模型的初始匹配结果；
    计算所述真实牙齿模型和所述标准牙齿模型分别包括的网格面片上特征点对的距离；
    基于所述网格面片上的所有特征点对的距离修正所述初始匹配结果，得到所述待备牙牙齿与所述标准制备体的配准结果。
  5. 根据权利要求3所述的方法，其特征在于，所述基于所述配准结果，对所述真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到所述待备牙牙齿的待修复数据，包括：
    根据所述配准结果，从所述真实牙齿模型中分割出待备牙牙齿模型，以及从所述标准备牙模型中分割出标准制备体模型；
    基于所述待备牙牙齿模型上各网格面片分别对应的法向量以及所述标准制备体模型上各网格面片分别对应的法向量，计算所述待备牙牙齿模型上各网格面片与所述标准制备体模型上各网格面片的距离，并将所述待备牙牙齿模型上各网格面片与所述标准制备体模型上各网格面片的距离，作为所述待备牙牙齿的待修复数据。
  6. 根据权利要求1所述的方法，其特征在于，在所述对所述真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到所述待备牙牙齿的待修复数据之后，所述方法还包括：
    将所述真实牙齿模型与所述标准备牙模型进行对比显示，以及显示所述待修复数据。
  7. 根据权利要求6所述的方法，其特征在于，在所述将所述真实 牙齿模型与所述标准备牙模型进行对比显示，以及显示所述待修复数据之后，所述方法还包括：
    在所述待备牙牙齿已磨除当前次数的情况下，获取所述目标对象的新的真实牙齿模型，以及对所述新的真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到新的待修复数据；
    若所述新的待修复数据位于预先设置的修复数据阈值区间，则确定已磨除所述当前次数的待备牙牙齿的形态数据与所述标准制备体的形态数据一致，将已磨除所述当前次数的待备牙牙齿作为所述标准备牙牙齿，其中，所述标准备牙牙齿用于佩戴修复体。
  8. 一种牙齿修复数据确定装置，其特征在于，包括：
    模型获取模块，用于获取目标对象的真实牙齿模型和所述真实牙齿模型对应的标准备牙模型，其中，所述真实牙齿模型包括待备牙牙齿，所述标准备牙模型包括所述待备牙牙齿对应的标准制备体，所述标准制备体是用于佩戴修复体的标准备牙牙齿；
    修复数据确定模块，用于对所述真实牙齿模型中的待备牙牙齿和所述标准备牙模型中的标准制备体进行对比，得到所述待备牙牙齿的待修复数据，其中，所述待修复数据是将所述待备牙牙齿修复到所述标准制备体所对应的待磨除数据。
  9. 一种牙齿修复数据确定设备，其特征在于，包括：
    处理器；
    存储器，用于存储可执行指令；
    其中，所述处理器用于从所述存储器中读取所述可执行指令，并执行所述可执行指令以实现上述权利要求1-7中任一项所述的牙齿修复数据确定方法。
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述存储介质存储有计算机程序，当所述计算机程序被处理器执行时，使得处理器实现上述权利要求1-7中任一项所述的牙齿修复数 据确定方法。
PCT/CN2023/100828 2022-06-16 2023-06-16 牙齿修复数据确定方法、装置、设备及存储介质 WO2023241706A1 (zh)

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