Oral and maxillofacial model presentation method and apparatus, and device and storage medium

Abstract

Disclosed in the present invention are an oral and maxillofacial model presentation method and apparatus, and a device and a storage medium. The method comprises: acquiring a three-dimensional jaw model; when an oral cavity is in a preset state and one of the jaws wears a jaw fork, acquiring three-dimensional facial model data, and determining the position of a first landmark point; on the basis of the other jaw, determining a relative positional relationship of models between the three-dimensional facial model data and the three-dimensional jaw model; when the oral cavity is in the preset state and both the upper jaw and the lower jaw wear jaw forks, determining, on the basis of the respectively worn jaw forks, a second landmark point corresponding to the upper jaw and a third landmark point corresponding to the lower jaw; and on the basis of the first landmark point, the second landmark point, the third landmark point and the relative positional relationship of the models, determining a relative positional relationship of jaw models between a three-dimensional upper jaw model and a three-dimensional lower jaw model during movement of the lower jaw. A three-dimensional oral and maxillofacial model is presented by means of wearing the jaw forks in a time-sharing manner, such that the amount of time consumed is relatively small, and the accuracy of determining the relative positional relationship of jaw models can be improved.

Description

Oral and maxillofacial model presentation method, device, equipment and storage medium Cross-reference to related applications The present application claims priority to the Chinese patent application No. 202411261931.7, filed on September 9, 2024, and entitled "Oral and maxillofacial model presentation method, device, equipment and storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0001] The present application relates to the field of oral clinical technology, and in particular to an oral and maxillofacial model presentation method, device, equipment and storage medium. BACKGROUND

[0002] In oral health and facial aesthetics, the state and position of the jaw bone have important influences on mastication function, pronunciation clarity and facial contour aesthetics. Therefore, for jaw-related diseases or deformities, such as jaw fracture, jaw joint disorder, jaw bone development abnormalities, etc., timely treatment and professional doctor's treatment and guidance are needed.

[0003] Currently, the traditional transfer jaw frame method is usually used in clinics to simulate the mandibular movement trajectory, which requires the use of a transfer face bow to simulate the three-dimensional positional relationship between the maxillary occlusal plane and the condylar axis on the articulator, and the use of a Gothic arch intraoral centric relation record to record the occlusion. Based on the centric relation record occlusion, the upper and lower impressions are fixed on the jaw frame, and the condyle guide and incisal guide are recorded and transferred.

[0004] The traditional transfer jaw frame has complicated steps and long operation time, and its operation method needs to repeatedly record the occlusion, which has high requirements for the experience and responsibility of the operator, and the patient also needs to cooperate highly, which is time-consuming and has poor patient experience, and the precision is difficult to guarantee, which cannot meet the actual application requirements. SUMMARY

[0005] The present application provides an oral and maxillofacial model presentation method, device, equipment and storage medium, which presents a three-dimensional oral and maxillofacial model by wearing a jaw fork in a time-sharing manner, which is time-saving and can improve the accuracy of determining the relative positional relationship of the jaw model.

[0006] According to an aspect of the present application, there is provided a method for presenting an oral jaw model. The method comprises: obtaining a three-dimensional model of a jaw of a target object in a preset state of an oral cavity, wherein the oral cavity comprises a maxilla and a mandible, and the three-dimensional model of the jaw comprises a three-dimensional model of the maxilla and a three-dimensional model of the mandible; obtaining three-dimensional model data of a face of the target object when the oral cavity is in the preset state and one of the jaws wears a jaw fork, and determining a position of a first landmark point according to the three-dimensional model data of the face, the one of the jaws being a first jaw; determining a model relative position relationship between the three-dimensional model data of the face and the three-dimensional model of the jaw based on another of the jaws, the other of the jaws being a second jaw; determining a second landmark point corresponding to the maxilla and a third landmark point corresponding to the mandible according to the jaw forks respectively worn by the maxilla and the mandible when the oral cavity is in the preset state and the maxilla and the mandible simultaneously wear jaw forks; and determining a jaw model relative position relationship between the three-dimensional model of the maxilla and the three-dimensional model of the mandible when the mandible of the target object moves, according to the first landmark point, the second landmark point, the third landmark point, and the model relative position relationship.

[0007] According to another aspect of the present application, there is provided an apparatus for presenting an oral jaw model. The apparatus comprises: a jaw model determining module configured to obtain a three-dimensional model of a jaw of a target object in a preset state of an oral cavity, wherein the oral cavity comprises a maxilla and a mandible, and the three-dimensional model of the jaw comprises a three-dimensional model of the maxilla and a three-dimensional model of the mandible; a face model determining module configured to obtain three-dimensional model data of a face of the target object when the oral cavity is in the preset state and one of the jaws wears a jaw fork, and determine a position of a first landmark point according to the three-dimensional model data of the face, the one of the jaws being a first jaw; a position relationship determining module configured to obtain a three-dimensional model of a jaw of a target object in a preset state of an oral cavity, wherein the oral cavity comprises a maxilla and a mandible, and the three-dimensional model of the jaw comprises a three-dimensional model of the maxilla and a three-dimensional model of the mandible; a landmark point determining module configured to determine a second landmark point corresponding to the maxilla and a third landmark point corresponding to the mandible according to the jaw forks respectively worn by the maxilla and the mandible when the oral cavity is in the preset state and the maxilla and the mandible simultaneously wear jaw forks; and a model presenting module configured to determine a jaw model relative position relationship between the three-dimensional model of the maxilla and the three-dimensional model of the mandible when the mandible of the target object moves, according to the first landmark point, the second landmark point, the third landmark point, and the model relative position relationship.

[0008] According to another aspect of the present application, there is provided an electronic device comprising at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method for presenting an oral and maxillofacial model according to any one of the embodiments of the present application.

[0009] According to another aspect of the present application, there is provided a computer readable storage medium storing computer instructions for enabling a processor to perform the method for presenting an oral and maxillofacial model according to any one of the embodiments of the present application when executed by the processor.

[0010] The technical solution of the embodiments of the present application improves the accuracy of presenting the maxillofacial model by obtaining the three-dimensional model of the maxillofacial part corresponding to the oral cavity in the case that the target object has a preset oral cavity state, wherein the oral cavity includes two maxillofacial parts, i.e., the upper jaw and the lower jaw, and the three-dimensional model of the maxillofacial part includes the three-dimensional model of the upper jaw and the three-dimensional model of the lower jaw. In the case that the oral cavity maintains the same preset oral cavity state and one of the maxillofacial parts wears a maxillary fork, the three-dimensional model of the face of the target object is obtained, and the first landmark point is determined according to the maxillary fork in the three-dimensional model of the face. The position information of the maxillofacial part in the three-dimensional model of the face is represented by the first landmark point, which improves the accuracy of determining the position of the maxillofacial part when it moves. The model relative position relationship between the three-dimensional model of the face and the three-dimensional model of the maxillofacial part is determined by the other maxillofacial part that does not wear the maxillary fork, so that the coordinates of the two are aligned. In the case that the oral cavity maintains the same preset oral cavity state and the upper jaw and the lower jaw both wear the maxillary fork, the second landmark point is determined according to the maxillary fork worn by the upper jaw, and the third landmark point is determined according to the maxillary fork worn by the lower jaw. The maxillofacial model relative position relationship between the three-dimensional model of the upper jaw and the three-dimensional model of the lower jaw when the lower jaw moves is determined according to the mutual correspondence between the first landmark point, the second landmark point, the third landmark point, and the model relative position relationship. The method of wearing the maxillary fork in turns reduces the collection time of the oral and maxillofacial parts, and improves the accuracy of determining the maxillofacial model relative position relationship.

[0011] It should be understood that the content described in this section is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to make the technical solution in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those skilled in the art without any creative effort based on these accompanying drawings should belong to the protection scope of the present application.

[0013] Fig. 1 is a flow chart of a method for presenting an oral and maxillofacial model according to an embodiment of the present application;

[0014] Fig. 2 is a schematic diagram of a three-dimensional face model according to an embodiment of the present application;

[0015] Fig. 3 is a flow chart of a method for presenting an oral and maxillofacial model according to another embodiment of the present application;

[0016] Fig. 4 is a schematic diagram of relative position relationship of landmark points according to an embodiment of the present application;

[0017] Fig. 5 is a schematic diagram of relative position relationship of maxillofacial models according to an embodiment of the present application;

[0018] Fig. 6 is a structural diagram of a device for presenting an oral and maxillofacial model according to an embodiment of the present application;

[0019] Fig. 7 is a structural diagram of an electronic device for implementing a method for presenting an oral and maxillofacial model according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the technical solution in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those skilled in the art without any creative effort based on these accompanying drawings should belong to the protection scope of the present application.

[0021] It should be noted that the terms "first", "second", and the like in the description and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to include only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] Embodiment One

[0023] FIG. 1 is a flowchart of a method for presenting an oral and maxillofacial model according to an embodiment of the present disclosure. The embodiment can be applied to present the positional relationship between a three-dimensional model of the upper jaw and a three-dimensional model of the lower jaw. The method can be performed by an oral and maxillofacial model presenting device, which can be implemented in hardware and / or software, and can be configured in an electronic device. As shown in FIG. 1, the method comprises the following steps:

[0024] S101, obtaining a three-dimensional model of the jaw of the target object in a preset oral state.

[0025] The target object can be an object to be presented with an oral and maxillofacial model, which can be an oral patient, an experimenter, or an oral bionic component, etc.

[0026] The oral cavity can include two jaws, namely the upper jaw and the lower jaw. Both the upper jaw and the lower jaw are structures related to the oral cavity in medicine and anatomy, and each has a unique function and position. The upper jaw and the lower jaw can be collectively referred to as "jaw" or "jaws". In oral health and facial aesthetics, the state and position of the jaw bone have important influences on the mastication function, the articulation clarity, and the aesthetic appearance of the facial profile. The preset oral state can be determined according to actual conditions, for example, it can be determined according to historical scanning data of multiple target objects or multiple historical scanning data of the target object, or it can be an empirical state set according to experience, etc., which is not limited here. Exemplarily, the preset oral state of the embodiment of the present disclosure can be a state in which the upper jaw and the lower jaw are closed and the lips are propped open with an oral speculum. The three-dimensional model of the jaw can include a three-dimensional model of the upper jaw corresponding to the upper jaw and a three-dimensional model of the lower jaw corresponding to the lower jaw.

[0027] Specifically, by using an intraoral scanning device, the three-dimensional data of the target object in the oral cavity in the preset oral state is scanned, and the scanning data is imported into a three-dimensional modeling software. At the same time, any impurities or unnecessary parts in the scanning are removed, such as excess soft tissue, saliva, or air bubbles, so that the three-dimensional model of the jaw can be obtained. At the same time, the three-dimensional data of the upper jaw and the three-dimensional data of the lower jaw can be separated from the entire scanning data, and the three-dimensional model of the upper jaw corresponding to the upper jaw and the three-dimensional model of the lower jaw corresponding to the lower jaw can be generated using the modeling software.

[0028] S102, obtaining three-dimensional model data of the face of the target object when the oral cavity is in the preset state and one of the jaws is wearing a jaw fork, and determining the position of the first landmark point according to the three-dimensional model data of the face.

[0029] It should be noted that in the embodiments of the present disclosure, one of the jaws can be a first jaw, and the first jaw can refer to any jaw, such as the upper jaw or the lower jaw. The jaw fork can be made of light-cured resin harmless to the body, and the jaw fork itself can be attached with special marker points that are easy to be recognized by a scanning device. One end of the jaw fork can be adhered to a part in the jaw by an adhesive material, such as the upper jaw bone, the upper jaw teeth, the lower jaw bone, and the lower jaw teeth, etc. In the embodiments of the present disclosure, the jaw wearing the jaw fork can be achieved by adhering the jaw fork to the jaw teeth. The other end of the jaw fork can be directly adhered to the face of the target object. The relative positional relationship between the jaw and the face of the target object can be represented by the special marker points of the jaw fork itself. It should be noted that one jaw fork can only be adhered to one jaw. The first marker point can refer to the special marker point of the jaw fork itself in the face three-dimensional model data.

[0030] FIG. 2 is a schematic diagram of a face three-dimensional model provided by an embodiment of the present disclosure. As shown in FIG. 2, when the oral cavity of the target object presents the same preset oral cavity state, and one of the two jaws is wearing a jaw fork, the static face data of the target object is scanned by a three-dimensional scanning device in all directions, and a three-dimensional modeling software is used to model according to the static face data, so that the face three-dimensional model data can be obtained (the example in FIG. 2 is that the lower jaw wears a jaw fork). At the same time, when the three-dimensional scanning device scans the static face data of the target object in all directions, the position information of the special marker points attached to the jaw fork is identified, and then the first marker point is determined in the face three-dimensional model data construction process according to the position information of the special marker points, so as to guarantee the accuracy of the corresponding relationship between the three-dimensional model of one of the jaws and the face three-dimensional model data, and further guarantee the accuracy of the oral jaw model.

[0031] S103, determining the model relative positional relationship between the face three-dimensional model data and the jaw three-dimensional model based on the other jaw.

[0032] It should be noted that in the embodiments of the present disclosure, the other jaw can refer to the other jaw except the first jaw, i.e. the second jaw. For example, the first jaw refers to the upper jaw, and the second jaw refers to the lower jaw. If the first jaw refers to the lower jaw, the second jaw refers to the upper jaw. The relative positional relationship can refer to the conversion relationship between the face three-dimensional model data and the jaw three-dimensional model.

[0033] It should be noted that the preset state is the occlusion state of the upper jaw and the lower jaw. In the technical scheme of the present disclosure, the first jaw is preferably the lower jaw, and the second jaw is preferably the upper jaw. The face three-dimensional model data at least coincides with part of the second jaw three-dimensional model data.

[0034] The second jaw three-dimensional model data can be three-dimensional mesh data, texture data, point cloud data, feature point data, etc. The upper jaw is generally exposed more fully, and the exposed data and features are more suitable for registration and alignment with the face three-dimensional model data.

[0035] Specifically, since the second jaw is not worn with a mouthpiece, it is fully exposed. At the same time, the face three-dimensional model and the jaw three-dimensional model both include the fully exposed jaw, so the fully exposed jaw can be used as a reference to further analyze and determine the model relative position relationship between the face three-dimensional model and the jaw three-dimensional model.

[0036] Illustratively, based on the other jaw, determining the model relative position relationship between the face three-dimensional model data and the jaw three-dimensional model includes: determining a first external surface feature of the second jaw, and determining a second external surface feature of the second jaw in the face three-dimensional model; and aligning the face three-dimensional model and the jaw three-dimensional model according to the first external surface feature and the second external surface feature to determine the model relative position relationship.

[0037] Wherein, the first external surface feature can refer to the external surface feature of the second jaw in the jaw three-dimensional model; and the second external surface feature can refer to the external surface feature of the second jaw in the face three-dimensional model.

[0038] Specifically, the first external surface feature and the second external surface feature are scanned and analyzed, and the alignment processing is performed according to the first external surface feature and the second external surface feature, so that the relative position relationship between the first external surface feature and the second external surface feature can be determined, that is, the model relative position relationship between the face three-dimensional model data and the jaw three-dimensional model is determined.

[0039] Illustratively, according to the first external surface feature and the second external surface feature, the face three-dimensional model data and the jaw three-dimensional model are aligned to determine the model relative position relationship, including: determining a model transformation matrix between the face three-dimensional model data and the jaw three-dimensional model according to the first external surface feature and the second external surface feature; and determining the model relative position relationship between the face three-dimensional model data and the jaw three-dimensional model according to the model transformation matrix.

[0040] Wherein, the model transformation matrix can refer to the transformation matrix between the face three-dimensional model data and the jaw three-dimensional model.

[0041] Specifically, the first external surface feature and the second external surface feature are aligned, and the model transformation matrix between them is determined, and then the model relative position relationship between the face three-dimensional model data and the jaw three-dimensional model is determined according to the model transformation matrix.

[0042] S104, in the case that the oral cavity is in a preset state and the upper jaw and the lower jaw simultaneously wear the jaw fork, determining a second landmark point corresponding to the upper jaw and a third landmark point corresponding to the lower jaw according to the jaw fork respectively worn.

[0043] The second landmark point can refer to a special landmark point of the upper jaw fork itself when the upper jaw and the lower jaw simultaneously wear the jaw fork. The third landmark point can refer to a special landmark point of the lower jaw fork itself when the upper jaw and the lower jaw simultaneously wear the jaw fork.

[0044] Specifically, in the case that the target object simultaneously wears the respective jaw fork on the upper jaw and the lower jaw, and the oral cavity is in a preset oral cavity state, scanning the facial information of the target object, and identifying the position information of the special landmark points attached to the upper jaw fork and the lower jaw fork, determining the special landmark points attached to the upper jaw fork as the second landmark points, and determining the special landmark points attached to the lower jaw fork as the third landmark points.

[0045] It should be noted that the second landmark point and the third landmark point are determined by scanning the face. However, the focus of scanning the face in this step is to scan and obtain three-dimensional data of the second landmark point and the third landmark point. It is not necessary to accurately scan the facial information, and it is not necessary to perform three-dimensional reconstruction and data generation on the face.

[0046] S105, determining the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model in the case of the lower jaw movement of the target object according to the first landmark point, the second landmark point, the third landmark point, and the model relative position relationship.

[0047] The jaw model relative position relationship can be to show or present the position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model, and then record and analyze the oral cavity problem of the target object according to the position relationship.

[0048] Specifically, the landmark points belonging to the same jaw part as the first landmark point are determined from the second landmark point and the third landmark point. According to the landmark point relative position relationship between the second landmark point and the third landmark point, and referring to the model relative position relationship, the target landmark point conforming to the landmark point relative position relationship with the first landmark point is determined in the facial three-dimensional model, so that the first landmark point and the target landmark point can be obtained in the facial three-dimensional model, and then the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model in the case of the lower jaw movement of the target object is determined according to the first landmark point and the target landmark point.

[0049] The technical scheme of the embodiment of the present application improves the jaw presentation accuracy by obtaining the jaw three-dimensional model corresponding to the oral cavity in the case that the target object's oral cavity is in a preset oral cavity state, wherein the oral cavity comprises two jaws, the two jaws are upper jaw and lower jaw respectively, and the jaw three-dimensional model comprises upper jaw three-dimensional model and lower jaw three-dimensional model. In the case that the oral cavity keeps the same preset oral cavity state and one of the jaws wears a jaw fork, the face three-dimensional model of the target object is obtained, and the first landmark point is determined according to the jaw fork in the face three-dimensional model, and the position information of the jaw in the face three-dimensional model is represented by the first landmark point, so that the position accuracy of the jaw in the movement can be improved. The model relative position relationship between the face three-dimensional model and the jaw three-dimensional model is determined by the other jaw which does not wear the jaw fork, so that the coordinates of the two are aligned. In the case that the oral cavity keeps the same preset oral cavity state and the upper jaw and the lower jaw wear the jaw fork at the same time, the second landmark point is determined according to the jaw fork worn by the upper jaw, and the third landmark point is determined according to the jaw fork worn by the lower jaw. The jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model in the movement of the lower jaw is determined according to the mutual corresponding relationship between the first landmark point, the second landmark point, the third landmark point and the model relative position relationship. The jaw fork wearing mode is used in time division, so that the collection time of the oral cavity jaw is reduced, and the jaw model relative position relationship accuracy can be improved.

[0050] Embodiment two

[0051] Fig. 3 is a flow chart of a jaw model presentation method provided by the embodiment two of the present application, and the present embodiment is based on the above-mentioned embodiments,

[0052] According to the first landmark point, the second landmark point, the third landmark point and the model relative position relationship, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model of the target object is determined, comprising:

[0053] The landmark point relative position relationship between the second landmark point and the third landmark point is determined.

[0054] According to the landmark point relative position relationship, the fourth landmark point mapped in the face three-dimensional model of the second landmark point is determined based on the first landmark point.

[0055] According to the first landmark point and the fourth landmark point in the face three-dimensional model, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model of the target object is determined.

[0056] As shown in Fig. 3, the method comprises:

[0057] S201, the jaw three-dimensional model of the target object's oral cavity in the preset state is obtained, wherein the oral cavity comprises upper jaw and lower jaw, and the jaw three-dimensional model comprises upper jaw three-dimensional model and lower jaw three-dimensional model.

[0058] S202, acquire the face three-dimensional model data of the target object in the case that the oral cavity is in the preset state and one of the jaw parts wears the jaw fork, and determine the position of the first landmark point according to the face three-dimensional model data, wherein the one of the jaw parts is the first jaw part.

[0059] S203, determine the model relative position relationship between the face three-dimensional model data and the jaw part three-dimensional model based on the other jaw part, wherein the other jaw part is the second jaw part.

[0060] S204, determine the second landmark point corresponding to the upper jaw and the third landmark point corresponding to the lower jaw according to the jaw forks respectively worn by the upper jaw and the lower jaw in the case that the oral cavity is in the preset state and the upper jaw and the lower jaw simultaneously wear the jaw forks.

[0061] S205, determine the landmark point relative position relationship between the second landmark point and the third landmark point.

[0062] The landmark point relative position relationship can refer to the relative position relationship between the second landmark point and the third landmark point, that is, the relative position relationship between the upper jaw and the lower jaw.

[0063] FIG. 4 is a schematic diagram of the landmark point relative position relationship provided by the second embodiment of the present application. Specifically, as shown in FIG. 4, the transformation matrix between the second landmark point and the third landmark point is determined according to the position information of the second landmark point and the position information of the third landmark point, and then the landmark point relative position relationship is determined by using the transformation matrix.

[0064] S206, determine the fourth landmark point mapped by the second landmark point in the face three-dimensional model data according to the landmark point relative position relationship based on the first landmark point.

[0065] The fourth landmark point can refer to the landmark point having the landmark point relative position relationship with the first landmark point.

[0066] It needs to be explained that the first landmark point can be the landmark point in the upper jaw or the landmark point in the lower jaw. Therefore, the first landmark point and the second landmark point belong to the landmark points of the same jaw part, or the first landmark point and the third landmark point belong to the landmark points of the same jaw part. In the case of determining the landmark point relative position relationship between the second landmark point and the third landmark point, the first landmark point of the face three-dimensional model can be taken as a reference, and then the fourth landmark point having the landmark point relative position relationship with the first landmark point is obtained.

[0067] S207, determine the jaw part model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model in the movement of the lower jaw of the target object according to the first landmark point and the fourth landmark point in the face three-dimensional model.

[0068] Fig. 5 is a schematic diagram of the relative position relationship of the jaw model according to the second embodiment of the present application. Specifically, as shown in Fig. 5, the first landmark point and the fourth landmark point are used to represent the upper jaw and the lower jaw, respectively. Based on the position information of the first landmark point and the position information of the fourth landmark point, the relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the movement of the lower jaw of the target object is determined.

[0069] Exemplarily, the relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the movement of the lower jaw of the target object is determined according to the first landmark point and the fourth landmark point in the facial three-dimensional model data, including: determining a first static position where the first landmark point is located and a second static position where the fourth landmark point is located when the upper jaw and the lower jaw of the target object are in a preset state; determining a first movement position where the first landmark point is located and a second movement position where the fourth landmark point is located for each frame of movement data when the upper jaw and the lower jaw of the target object are in a movement state; and determining the relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the movement of the lower jaw of the target object according to the first static position, the first movement position, the second static position and the second movement position.

[0070] The first static position can refer to the position information of the first landmark point when the oral cavity of the target object is in a closed state. The second static position can refer to the position information of the fourth landmark point when the oral cavity of the target object is in a closed state. The first movement position can refer to the position information of the first landmark point when the oral cavity of the target object is in a movement state. The second movement position can refer to the position information of the fourth landmark point when the oral cavity of the target object is in a movement state.

[0071] Specifically, the first static position where the first landmark point is located when the oral cavity of the target object is in a closed state and the second static position where the fourth landmark point is located when the oral cavity of the target object is in a closed state are determined. Meanwhile, the first movement position where the first landmark point is located when the oral cavity of the target object is in a movement state and the second movement position where the fourth landmark point is located when the oral cavity of the target object is in a movement state are determined for each frame of movement data. Then, the relative position relationship between the first static position, the first movement position, the second static position and the second movement position is determined, so that the relative position relationship of the jaw model can be determined.

[0072] According to the first static position, the first motion position, the second static position and the second motion position, the jaw model relative position relationship is determined, including: according to the first static position and the first motion position, a first transformation matrix corresponding to the upper jaw three-dimensional model is determined; according to the second static position and the second motion position, a second transformation matrix corresponding to the lower jaw three-dimensional model is determined; according to each first transformation matrix and each second transformation matrix, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the movement of the target object's lower jaw is determined.

[0073] The first transformation matrix can refer to the transformation matrix between the first static position and the first motion position. The second transformation matrix can refer to the transformation matrix between the second static position and the second motion position.

[0074] Specifically, according to the first static position and the first motion position, a first transformation matrix between the first landmark point in the oral cavity closed state and the motion state is determined. According to the second static position and the second motion position, a second transformation matrix between the second landmark point in the oral cavity closed state and the motion state is determined. That is, the transformation matrix between the upper jaw three-dimensional model in the oral cavity closed state and the motion state is determined, and the transformation matrix between the lower jaw three-dimensional model in the oral cavity closed state and the motion state is determined. Then, according to each first transformation matrix and each second transformation matrix, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model in each motion frame is determined.

[0075] According to each first transformation matrix and each second transformation matrix, the upper and lower jaw three-dimensional motion relationship is determined, including: for each motion data, according to the first transformation matrix and the second transformation matrix, a motion relative position relationship corresponding to the motion data is determined; a reference system is established based on the upper jaw three-dimensional model, and the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the movement of the target object's lower jaw is determined according to the motion relative position relationship.

[0076] Specifically, for each oral cavity motion frame, the transformation matrix between the upper and lower jaw models during the motion process is calculated according to the first transformation matrix and the second transformation matrix, and a reference system is established based on the upper jaw three-dimensional model. For each motion data, the transformation matrix between the upper and lower jaw models is maintained, the movement of the lower jaw three-dimensional model relative to the upper jaw three-dimensional model is determined, until the movement of the lower jaw three-dimensional model relative to the upper jaw three-dimensional model for each oral cavity motion data is determined, so that the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the movement of the lower jaw can be determined.

[0077] The technical scheme of the embodiment of the present application determines the relative position relationship between the second landmark point and the third landmark point. By using the relative position relationship of the landmark points of the upper jaw and the lower jaw, the fourth landmark point corresponding to the first landmark point is mapped in the three-dimensional face model, and then the relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model of the target object is determined according to the first landmark point and the fourth landmark point in the three-dimensional face model, so that the accuracy of determining the relative position relationship of the jaw model can be improved, and the tooth occlusion condition of the target object can be more finely analyzed.

[0078] Embodiment three

[0079] Fig. 6 is a structural schematic view of an oral jaw model presentation device provided by the third embodiment of the present application. As shown in Fig. 6, the device comprises:

[0080] The jaw model determination module 301 is configured to acquire the jaw three-dimensional model of the target object in a preset state of the oral cavity, wherein the oral cavity comprises the upper jaw and the lower jaw, and the jaw three-dimensional model comprises the upper jaw three-dimensional model and the lower jaw three-dimensional model.

[0081] The face model determination module 302 is configured to acquire the three-dimensional face model data of the target object when the oral cavity is in the preset state and one of the jaws wears a jaw fork, and determine the position of the first landmark point according to the three-dimensional face model data, wherein the one of the jaws is the first jaw.

[0082] The position relationship determination module 303 is configured to acquire the jaw three-dimensional model of the target object in a preset state, wherein the oral cavity comprises the upper jaw and the lower jaw, and the jaw three-dimensional model comprises the upper jaw three-dimensional model and the lower jaw three-dimensional model.

[0083] The landmark point determination module 304 is configured to determine the second landmark point corresponding to the upper jaw and the third landmark point corresponding to the lower jaw according to the jaw forks respectively worn by the upper jaw and the lower jaw when the oral cavity is in the preset state and the upper jaw and the lower jaw simultaneously wear the jaw forks.

[0084] The model presentation module 305 is configured to determine the relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model of the target object according to the first landmark point, the second landmark point, the third landmark point and the model relative position relationship.

[0085] The technical scheme of the embodiment of the present application improves the jaw presentation accuracy by obtaining the jaw three-dimensional model corresponding to the oral cavity when the target object's oral cavity is in a preset oral cavity state, wherein the oral cavity includes two jaws, and the two jaws are the upper jaw and the lower jaw respectively, and the jaw three-dimensional model includes the upper jaw three-dimensional model and the lower jaw three-dimensional model. In the case that the oral cavity keeps the same preset oral cavity state and one of the jaws wears a jaw fork, the face three-dimensional model of the target object is obtained, and the first landmark point is determined according to the jaw fork in the face three-dimensional model, and the position information of the jaw in the face three-dimensional model is represented by the first landmark point, which can improve the position accuracy of the jaw when the jaw moves. The model relative position relationship between the face three-dimensional model and the jaw three-dimensional model is determined through the other jaw which does not wear a jaw fork, so that the coordinates of the two are aligned. In the case that the oral cavity keeps the same preset oral cavity state and the upper jaw and the lower jaw wear jaw forks at the same time, the second landmark point is determined according to the jaw fork worn by the upper jaw, and the third landmark point is determined according to the jaw fork worn by the lower jaw. The jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model when the lower jaw moves is determined according to the mutual corresponding relationship between the first landmark point, the second landmark point, the third landmark point and the model relative position relationship. The jaw fork wearing mode is used in time division, which reduces the collection time of the oral cavity jaw and improves the accuracy of determining the jaw model relative position relationship.

[0086] Optionally, the preset state is a bite state of the upper jaw and the lower jaw, the first jaw is the lower jaw, the second jaw is the upper jaw, and the face three-dimensional model data at least coincides with part of the second jaw three-dimensional model data.

[0087] Optionally, the position relationship determination module 303 comprises:

[0088] The outer surface feature determination unit is configured to determine the first outer surface feature of the second jaw and determine the second outer surface feature of the second jaw in the face three-dimensional model. The position relationship determination unit is configured to align the face three-dimensional model data and the jaw three-dimensional model according to the first outer surface feature and the second outer surface feature, and determine the model relative position relationship.

[0089] The model relative position relationship between the face three-dimensional model data and the jaw three-dimensional model is determined according to the model transformation matrix.

[0090] Optionally, the model presentation module 305 comprises:

[0091] The relative position relationship determination sub-module is configured to determine the landmark point relative position relationship between the second landmark point and the third landmark point.

[0092] The fourth landmark point determination sub-module is configured to determine a fourth landmark point corresponding to the second landmark point in the face three-dimensional model data based on the first landmark point and the relative position relationship of the landmark points.

[0093] The jaw model presentation sub-module is configured to determine a relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the mandibular movement of the target object based on the first landmark point and the fourth landmark point in the face three-dimensional model data.

[0094] Optionally, the jaw model presentation sub-module includes:

[0095] The static position determination unit is configured to determine a first static position where the first landmark point is located and a second static position where the fourth landmark point is located when the upper and lower jaws of the target object are in a preset state.

[0096] The motion position determination unit is configured to determine a first motion position where the first landmark point is located and a second motion position where the fourth landmark point is located for each frame of motion data when the upper and lower jaws of the target object are in a motion state.

[0097] The jaw model presentation unit is configured to determine a relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the mandibular movement of the target object based on the first static position, the first motion position, the second static position, and the second motion position.

[0098] Optionally, the jaw model presentation unit includes:

[0099] The transformation matrix determination sub-unit is configured to determine a first transformation matrix corresponding to the upper jaw three-dimensional model based on the first static position and the first motion position.

[0100] The transformation matrix determination sub-unit is further configured to determine a second transformation matrix corresponding to the lower jaw three-dimensional model based on the second static position and the second motion position.

[0101] The jaw model presentation sub-unit is configured to determine a relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the mandibular movement of the target object based on the first transformation matrix and the second transformation matrix.

[0102] Optionally, the jaw model presentation sub-unit is specifically configured to:

[0103] For each frame of motion data, the first transformation matrix and the second transformation matrix are used to determine a motion relative position relationship corresponding to the motion data.

[0104] A reference system is established based on the upper jaw three-dimensional model, and a relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the mandibular movement of the target object is determined based on the motion relative position relationship.

[0105] The oral cavity and jaw model presentation device provided by the embodiments of the present application can execute the oral cavity and jaw model presentation method provided by any of the embodiments of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0106] Embodiment Four

[0107] FIG. 7 shows a structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the present application. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not intended to limit the implementations of the present application described and / or claimed in this document.

[0108] As shown in FIG. 7, the electronic device 10 includes at least one processor 11, and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11, wherein the memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0109] A plurality of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, a loudspeaker, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0110] The processor 11 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 performs various methods and processes described above, such as the method dental model presentation.

[0111] In some embodiments, the method dental model presentation can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, parts or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded onto the RAM 13 and executed by the processor 11, one or more steps of the method dental model presentation described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the method dental model presentation by other any suitable means, such as by means of firmware.

[0112] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (PLD), a computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0113] Computer programs used to implement the methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed by the processor, implements the functions / acts specified in the flowcharts and / or block diagrams. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, partially on a machine and partially on a remote machine or entirely on a remote machine or server.

[0114] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0115] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0116] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0117] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0118] It should be understood that the various forms of flow shown above can be reordered, added to, or have steps deleted. For example, the steps described in the present application can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, and the present application is not limited herein.

[0119] The above detailed description does not constitute a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0120] Industrial applicability: the technical scheme of the embodiment of the present application improves the presentation accuracy of the jaw part by acquiring the three-dimensional model of the jaw part corresponding to the oral cavity in the case that the oral cavity of the target object is in a preset oral cavity state, wherein the oral cavity includes two jaw parts, the two jaw parts are the upper jaw and the lower jaw respectively, and the three-dimensional model of the jaw part includes the three-dimensional model of the upper jaw and the three-dimensional model of the lower jaw. In the case that the oral cavity maintains the same preset oral cavity state and one of the jaw parts wears a jaw fork, the three-dimensional model of the face of the target object is acquired, and the first landmark point is determined according to the jaw fork in the three-dimensional model of the face, and the position information of the jaw part in the three-dimensional model of the face is represented by the first landmark point, which can improve the position accuracy of the jaw part in motion. The model relative position relationship between the three-dimensional model of the face and the three-dimensional model of the jaw part is determined by the other jaw part which does not wear a jaw fork, so that the coordinates of the two are aligned. In the case that the oral cavity maintains the same preset oral cavity state and the upper jaw and the lower jaw wear jaw forks at the same time, the second landmark point is determined according to the jaw fork worn by the upper jaw, and the third landmark point is determined according to the jaw fork worn by the lower jaw. The jaw part model relative position relationship between the three-dimensional model of the upper jaw and the three-dimensional model of the lower jaw in the motion of the lower jaw is determined according to the mutual corresponding relationship between the first landmark point, the second landmark point, the third landmark point and the model relative position relationship. The method of wearing the jaw fork in different time reduces the acquisition time of the oral cavity jaw part, and can improve the accuracy of determining the jaw part model relative position relationship.

Claims

1. A method for presenting an oral model, comprising: obtaining a three-dimensional model of a jaw of a target subject in a preset state of an oral cavity, wherein the oral cavity comprises a maxilla and a mandible, and the three-dimensional model of the jaw comprises a three-dimensional model of the maxilla and a three-dimensional model of the mandible; obtaining three-dimensional model data of a face of the target subject in a state where the oral cavity is in the preset state and one of the jaws wears a jaw fork, and determining a position of a first landmark point according to the three-dimensional model data of the face, the one of the jaws being a first jaw; determining a model relative position relationship between the three-dimensional model data of the face and the three-dimensional model of the jaw based on another jaw, the another jaw being a second jaw; obtaining a second landmark point corresponding to the maxilla and a third landmark point corresponding to the mandible according to the jaw forks worn by the maxilla and the mandible respectively in a state where the oral cavity is in the preset state and the maxilla and the mandible wear jaw forks simultaneously; determining a jaw model relative position relationship between the three-dimensional model of the maxilla and the three-dimensional model of the mandible when the mandible of the target subject moves according to the first landmark point, the second landmark point, the third landmark point and the model relative position relationship.

2. The method of claim 1, wherein, The preset state is a state of occlusion of the maxilla and the mandible, the first jaw is the mandible, the second jaw is the maxilla, and the three-dimensional model data of the face at least coincides with part of the three-dimensional model data of the second jaw.

3. The method of claim 1 or 2, wherein, The determining of the model relative position relationship between the three-dimensional model data of the face and the three-dimensional model of the jaw based on the another jaw comprises: determining a first external surface feature of the second jaw and a second external surface feature of the second jaw in the three-dimensional model of the face; aligning the three-dimensional model data of the face and the three-dimensional model of the jaw according to the first external surface feature and the second external surface feature to determine the model relative position relationship.

4. The method of claim 3, wherein, The aligning of the three-dimensional model of the face and the three-dimensional model of the jaw according to the first external surface feature and the second external surface feature to determine the model relative position relationship comprises: determining a model transformation matrix between the three-dimensional model data of the face and the three-dimensional model of the jaw according to the first external surface feature and the second external surface feature; determining the model relative position relationship between the three-dimensional model data of the face and the three-dimensional model of the jaw according to the model transformation matrix.

5. The method according to any one of claims 1 to 4, wherein, The determining of the jaw model relative position relationship between the three-dimensional model of the maxilla and the three-dimensional model of the mandible when the mandible of the target subject moves according to the first landmark point, the second landmark point, the third landmark point and the model relative position relationship comprises: determining a landmark point relative position relationship between the second landmark point and the third landmark point; determining a fourth landmark point in the three-dimensional model data of the face which is mapped by the second landmark point according to the landmark point relative position relationship based on the first landmark point. According to the first landmark point and the fourth landmark point in the face three-dimensional model data, a jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during a lower jaw movement of the target object is determined.

6. The method of claim 5, wherein, The determination of the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the lower jaw movement of the target object according to the first landmark point and the fourth landmark point in the face three-dimensional model data comprises: In a case where the upper jaw and the lower jaw of the target object are in a preset state, a first static position where the first landmark point is located and a second static position where the fourth landmark point is located are determined; In a case where the upper jaw and the lower jaw of the target object are in a movement state, for each frame of movement data, a first movement position where the first landmark point is located and a second movement position where the fourth landmark point is located are determined; According to the first static position, the first movement position, the second static position and the second movement position, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the lower jaw movement of the target object is determined.

7. The method of claim 6, wherein, The determination of the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the lower jaw movement of the target object according to the first static position, the first movement position, the second static position and the second movement position comprises: According to the first static position and the first movement position, a first transformation matrix corresponding to the upper jaw three-dimensional model is determined; According to the second static position and the second movement position, a second transformation matrix corresponding to the lower jaw three-dimensional model is determined; According to each of the first transformation matrix and each of the second transformation matrix, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the lower jaw movement of the target object is determined.

8. The method of claim 7, wherein, The determination of the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the lower jaw movement of the target object according to each of the first transformation matrix and each of the second transformation matrix comprises: For each frame of movement data, according to the first transformation matrix and the second transformation matrix, a movement relative position relationship corresponding to the movement data is determined; Based on the upper jaw three-dimensional model, a reference system is established, and according to the movement relative position relationship, the jaw model relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model during the lower jaw movement of the target object is determined.

9. An oral jaw model presentation device, comprising: a jaw model determination module configured to acquire a jaw three-dimensional model of an oral cavity of a target object in a preset state, wherein the oral cavity comprises an upper jaw and a lower jaw, and the jaw three-dimensional model comprises an upper jaw three-dimensional model and a lower jaw three-dimensional model; The face model determining module is configured to acquire face three-dimensional model data of the target object when the oral cavity is in the preset state and one of the jaw parts wears a jaw fork, and determine the position of the first landmark point according to the face three-dimensional model data, the one of the jaw parts being the first jaw part; The position relationship determining module is configured to acquire jaw part three-dimensional model of the target object in the preset state, wherein the oral cavity includes an upper jaw and a lower jaw, and the jaw part three-dimensional model includes an upper jaw three-dimensional model and a lower jaw three-dimensional model; The landmark point determining module is configured to determine the second landmark point corresponding to the upper jaw and the third landmark point corresponding to the lower jaw according to the jaw forks respectively worn when the oral cavity is in the preset state and the upper jaw and the lower jaw simultaneously wear jaw forks; The model presenting module is configured to determine the relative position relationship between the upper jaw three-dimensional model and the lower jaw three-dimensional model according to the first landmark point, the second landmark point, the third landmark point, and the model relative position relationship. 10.An electronic device, comprising: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the oral cavity jaw part model presenting method of any one of claims 1-8. 11.A computer readable storage medium, the computer readable storage medium stores computer instructions, the computer instructions are used to enable the processor to implement the oral cavity jaw part model presenting method of any one of claims 1-8 when executed.

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