CN114343906B - Method, device, medium and electronic device for obtaining occlusal vertical distance - Google Patents

Abstract

The invention provides a method, a device, a medium and electronic equipment for acquiring an occlusion vertical distance. The method comprises the following steps: acquiring a dentition scanning result of the target object when the target object is at a preset occlusion position; acquiring an oral cavity image of the target object when the target object is in a preset occlusion position, wherein the oral cavity image comprises temporomandibular joints, infrabony orbitals and complete dentition of the target object; acquiring a maxilla and a mandible three-dimensional model of the target object according to the oral cavity image; importing the dentition scanning result and the maxilla and mandible three-dimensional model into an electronic face arch system; acquiring a mandible movement track of the target object by using the electronic facebow system in the process of carrying out preset mandible movement on the target object; and acquiring a target jaw position and a bite vertical distance according to the mandible movement track of the target object. The method can quickly and accurately acquire the occlusion vertical distance of the target object.

Description

Method, device, medium and electronic equipment for obtaining occlusal vertical distance

technical field

The invention relates to the technical field of digital oral cavity, in particular to a method, device, medium and electronic equipment for obtaining the vertical distance of occlusion.

Background technique

Oral health is closely related to people's quality of life. In dental clinics, it often occurs that the occlusal vertical distance of the patient is reduced due to severe tooth wear, dentition defect or dentition loss, which not only affects the appearance but also leads to a decrease in the quality of life of the patient. In the prior art, occlusal reconstruction is usually used to deal with this situation, so as to achieve a combination of aesthetics and function to meet the standard needs of patients. However, in the prior art, the method of increasing the vertical distance of the patient's occlusion is usually to manually position the mandible and condyle according to experience, which requires medical staff to have rich experience and high technical sensitivity, and this method is difficult to be widely taught and promoted .

In recent years, with the advancement of computer technology and the development of science and technology, digital technology has been gradually applied to the fields of oral restoration. Based on computer-aided design/computer-aided manufacturing (CAD/CAM) as the supporting platform, the data of extraoral external scan (EOS), intraoral scan (IOS) and cone beam computer tomography (CBCT) were integrated to create It has become feasible to virtualize the dental patient and determine the position of the jaw and the vertical distance of the occlusion using digital methods.

Contents of the invention

One of the objectives of the present invention is to provide a method, device, medium and electronic equipment for obtaining the vertical distance of occlusion, which is used to solve the problem that it is difficult to quickly and accurately obtain the vertical distance of patient occlusion in the prior art.

In order to achieve the above purpose and other related purposes, the first aspect of the present invention provides a method for obtaining the vertical distance of occlusion, the method for obtaining the vertical distance of occlusion includes: obtaining the target object when the target object is at a preset occlusal position Dental scan results; when the target object is in the preset occlusal position, the oral image of the target object is obtained, and the oral image includes the temporomandibular joint, bony infraorbital rim and complete dentition of the target object Obtaining the three-dimensional model of the upper and lower jaws of the target object according to the oral cavity image; importing the scan results of the dentition and the three-dimensional model of the upper and lower jaws into the electronic facebow system; During the process, the electronic facebow system is used to obtain the mandibular movement trajectory of the target object; and the target jaw position and occlusal vertical distance are obtained according to the mandibular movement trajectory of the target object.

In an embodiment of the first aspect, the preset occlusal position is the maximum cusp crossing position.

In an embodiment of the first aspect, the method for obtaining the occlusal vertical distance further includes: registering the scan result of the dentition and the three-dimensional model of the upper and lower jaws based on tooth calibration points.

In an embodiment of the first aspect, the method for obtaining the three-dimensional model of the upper and lower jaws of the target object according to the oral cavity image includes: adjusting the temporal region in the oral cavity image according to the gray threshold range of bones and teeth The mandibular joint space is processed to separate the temporomandibular joint fossa from the condyle to obtain a complete upper and lower jaw; three-dimensional reconstruction is performed based on the complete upper and lower jaw to obtain a three-dimensional model of the upper and lower jaw.

In an embodiment of the first aspect, the method for obtaining the occlusal vertical distance further includes: using the scan result of the dentition to replace the dentition in the three-dimensional model of the upper and lower jaws.

In an embodiment of the first aspect, the method for obtaining the occlusal vertical distance further includes: calculating the occlusal surface of the mandibular and mandibular dentition in the electronic facebow system based on the preset calibration points of the occlusal surface of the teeth And the real occlusal surface of the target object is marked, so as to obtain the facial hard tissue registration result of the target object.

In an embodiment of the first aspect, the preset mandibular movement includes a small jaw opening movement, the mandibular movement trajectory includes multiple frames of facial images, and the method for obtaining the target jaw position includes: displaying the target jaw position frame by frame. The facial image corresponding to the small jaw opening movement; acquire a corresponding frame of facial image as the target image in response to the received instruction; acquire the position of the mandible in the target image as the target jaw position.

The second aspect of the present invention provides a device for obtaining the vertical distance of occlusion, the device for obtaining the vertical distance of occlusion includes: a scanning result obtaining module, which is used to obtain the teeth of the target object when the target object is at a preset occlusal position scan results; an oral cavity image acquisition module, configured to acquire an oral cavity image of the target object when the target object is in a preset occlusal position, the oral cavity image includes the temporomandibular joint, bony suborbital edge and complete dentition; a three-dimensional model acquisition module, used to acquire a three-dimensional model of the upper and lower jaws of the target object according to the oral image; a data import module, used for scanning the results of the dentition and the three-dimensional upper and lower jaws The model is imported into the electronic facebow system; the mandibular trajectory acquisition module is used to use the electronic facebow system to obtain the mandibular movement trajectory of the target object when the target object repeats multiple preset mandibular movements; vertical distance acquisition A module, configured to acquire the target jaw position and the vertical distance of occlusion according to the target object's mandibular movement track.

A third aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for obtaining the occlusal vertical distance according to any one of the first aspect of the present invention is implemented.

A fourth aspect of the present invention provides an electronic device, which includes: a memory storing a computer program; a processor connected to the memory in communication, and executing any one of the first aspect of the present invention when calling the computer program The acquisition method of the occlusal vertical distance.

As mentioned above, the method for obtaining the occlusal vertical distance described in one or more embodiments of the present invention has the following beneficial effects:

The acquisition method of the occlusal vertical distance can automatically acquire the mandibular movement trajectory of the target object through the electronic facebow system, and then can acquire the target jaw position and the occlusal vertical distance. This method does not depend on the experience of medical personnel, and has the advantages of being fast, accurate and easy to popularize.

Description of drawings

FIG. 1 is a flowchart of a method for obtaining the occlusal vertical distance in a specific embodiment of the present invention.

FIG. 2 is a detailed flowchart of step S13 in a specific embodiment of the method for obtaining the occlusal vertical distance according to the present invention.

FIG. 3 is a detailed flowchart of step S16 in a specific embodiment of the method for obtaining the occlusal vertical distance according to the present invention.

FIG. 4 is a schematic structural diagram of a specific embodiment of the acquisition device for the occlusal vertical distance of the present invention.

FIG. 5 is a schematic structural diagram of an electronic device according to a specific embodiment of the present invention.

Component designation description

4 Acquisition device for bite vertical distance

41 scan result acquisition module

42 Oral image acquisition module

43 3D model acquisition module

44 Data import module

45 Mandibular Track Acquisition Module

46 Vertical distance acquisition module

500 electronic equipment

510 memory

520 processor

530 display

S11～S16 steps

S131～S132 steps

S161～S163 steps

Detailed ways

Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and size of the components in actual implementation Drawing, the type, quantity and proportion of each component can be changed arbitrarily during its actual implementation, and its component layout type may also be more complicated. Furthermore, in this document, relational terms such as "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between.

Referring to FIG. 1 , in an embodiment of the present invention, a method for obtaining the vertical distance of occlusion is provided, and the method for obtaining the vertical distance of occlusion includes the following steps S11 to S16 .

Step S11 , acquiring a scan result of the dentition of the target object when the target object is in a preset occlusal position. The target object is, for example, a patient to be tested. The dentition scanning result can be obtained by scanning the oral cavity of the target object by an intraoral scanning device. In practical applications, medical staff can retract the lips of the target subject through the gag, and use an intraoral scanning device to scan and record the upper and lower jaw dentition and the occlusal relationship of the target subject, so as to obtain the dentition scan result.

Optionally, the preset occlusal position is the maximum cusp staggered position.

Optionally, the scan result of the dentition is in STL (stereolithography) format, so that the scan result of the dentition can be processed later.

Step S12, acquiring an oral cavity image of the target object when the target object is in a preset occlusal position, the oral cavity image including the temporomandibular joint, bony infraorbital rim and complete dentition of the target object.

Optionally, the oral cavity image is a CBCT image. Further, the oral cavity image may be a large field of view (FOV) CBCT image covering temporomandibular joint, bony infraorbital rim and complete dentition.

Optionally, in this embodiment, a CBCT scanning device can be used to obtain a large-field CBCT image of the target object including the mandibular condyle, the bony external auditory canal, the bony infraorbital rim, and the complete dentition at the maximum cusp crossing position as the described Oral imaging.

Optionally, the oral cavity image is a DICOM (Digital Imaging and Communications in Medicine, digital imaging and communication in medicine) image, so that the oral cavity image can be processed subsequently.

Step S13, acquiring a three-dimensional model of the upper and lower jaws of the target subject according to the oral cavity image.

Step S14, importing the scan result of the dentition and the three-dimensional model of the upper and lower jaws into an electronic face bow system, such as a preset optical sensing electronic face bow system.

Step S15 , using the electronic facebow system to obtain the target object's jaw movement trajectory during the preset jaw movement process. For example, the medical personnel may require the target subject to repeat multiple preset mandibular movements. During the process of the target subject repeating multiple preset mandibular movements, this embodiment may use the electronic facebow system to acquire the The jaw movement trajectory of the target object. The preset mandibular movement includes, for example, mandibular protraction movement, lateral movement, mouth opening and closing movement, small jaw opening movement, tooth tapping movement and the like.

Optionally, the target subject can perform the preset mandibular movement after biting the cotton roll with the bilateral posterior teeth for a period of time, so as to achieve the purpose of deprogramming facial muscles.

Step S16, acquiring the target jaw position and the occlusal vertical distance according to the mandibular movement track of the target object.

According to the above description, it can be seen that the method for obtaining the vertical occlusion distance described in this embodiment can obtain the mandibular movement trajectory of the target subject through the electronic face bow system, and then can obtain the target jaw position and the vertical occlusion distance. This method does not depend on the experience of medical personnel, and has the advantages of being fast, accurate and easy to popularize.

Please refer to FIG. 2 , in an embodiment of the present invention, the implementation method of obtaining the three-dimensional model of the upper and lower jaws of the target object according to the oral cavity image includes the following steps S131 and S132.

Step S131 , processing the temporomandibular joint space in the oral cavity image according to the gray threshold range of bones and teeth, so as to separate the temporomandibular joint fossa from the condyle to obtain a complete upper and lower jaw. Specifically, the gray thresholds of bones and teeth in the oral cavity images are different, therefore, the temporomandibular joint gap can be cleaned according to the gray threshold ranges of bones and teeth. The grayscale threshold range of the bones and teeth may be a preset value, and may be manually specified according to actual needs.

Step S132, performing three-dimensional reconstruction based on the complete upper and lower jaws to obtain the three-dimensional model of the upper and lower jaws. For example, the oral cavity image can be imported into corresponding three-dimensional reconstruction software to obtain the three-dimensional model of the upper and lower jaws, and the three-dimensional model of the upper and lower jaws is, for example, a surface three-dimensional model.

Optionally, the three-dimensional model of the upper and lower jaws can be exported as a file in STL format.

Optionally, the method for obtaining the occlusal vertical distance further includes: registering the scan result of the dentition and the three-dimensional model of the upper and lower jaws based on the tooth calibration points, at this time, the electronic facebow system includes registration Posterior occlusal surface of the mandibular dentition. Specifically, the tooth calibration point can be the same point corresponding to several positions in the dentition scan result and the three-dimensional model of the upper and lower jaws. For example, in this embodiment, the mesial incisor angle of the right upper central incisor can be selected. , the mesial lingual tip of the upper right first molar and the distal lingual groove of the left upper first molar are used as the teeth marking points. It should be noted that the tooth marking point can be selected according to the actual condition of the dentition of the target object, which is not limited in the present invention.

Optionally, in this embodiment, a method for registering the scan result of the dentition with the three-dimensional model of the upper and lower jaws based on tooth calibration points includes: The tooth calibration points are respectively marked in the three-dimensional bone model, and the scanned result of the dentition and the three-dimensional model of the upper and lower jaws are registered based on a mark point matching algorithm to obtain a registered oral cavity scan result. In this way, the accuracy of the dentition in the three-dimensional model of the upper and lower jaws can be optimized. Preferably, the final matching result with a matching error less than or equal to 0.05 mm may be selected as the registered oral scan result during the registration process.

Optionally, the method for obtaining the occlusal vertical distance may further include: using the scan results of the dentition to replace the dentition in the three-dimensional model of the upper and lower jaws, so that the scan results of the dentition are consistent with the results of the upper and lower jaws 3D model matching.

Optionally, after importing the scan results of the dentition and the three-dimensional model of the upper and lower jaws into the electronic facebow system, the method for obtaining the occlusal vertical distance further includes: Marking the occlusal surface of the mandibular and mandibular occlusal surfaces of the electronic facebow system and the real occlusal surface of the target object to obtain a facial hard tissue registration result of the target object. Wherein, the real occlusal surface of the target object refers to the occlusal surface of the dentition acquired in step S11.

Optionally, in this embodiment, a corresponding point can be selected on the left, right, near, and far sides of the occlusal surface of the mandible as the tooth calibration point, that is, the registered jaw in the electronic face bow system A position corresponding to the same point in the mouth of the target object is selected as the tooth marking point in the left, right, near and far of the occlusal surface of the mandibular dentition. For example, the mesiobuccal cusp of the left mandibular second molar, the mesiobuccal cusp of the left mandibular first premolar, the mesiobuccal cusp of the right mandibular first premolar, and the mesiobuccal cusp of the right mandibular second molar can be selected as the tooth marking points , but the present invention is not limited thereto. In practical applications, the tooth marking points can be selected according to the actual condition of the dentition of the target object.

In an embodiment of the present invention, the method for obtaining the vertical occlusal distance may further include: fixing an optical positioning tracking device matched with the electronic facebow system on the buccal side of the head and mandibular dentition of the target subject , and use the optical signal receiving pen to click on the occlusal surface calibration point and the two condyle points of the target object to obtain the virtual patient maxillofacial hard tissue registration result. In the process of fixing the optical positioning tracking device, it is necessary to use light-cured fluid resin to fix and fix under the condition that the placement position does not affect the occlusal or cause occlusal interference, so as to receive and record the movement track of the mandible.

Optionally, the mandibular movement trajectory of the target object includes dynamic maxillofacial hard tissue relationship results.

In an embodiment of the present invention, in the process of using the electronic face bow system to obtain the target object's mandibular movement trajectory, the electronic face bow system can be used to analyze the occlusal status of the target object, and from the vector Observing the trajectory and range of displacement trajectory during condyle movement on the plane, coronal, and horizontal planes, and quickly analyzing the trajectory characteristics and repetitions, so as to exclude some patients who are not suitable for occlusal reconstruction.

In an embodiment of the present invention, the preset jaw movement includes a small jaw opening movement, and the jaw movement trajectory includes multiple frames of facial images. Please refer to FIG. 3 , the implementation method for obtaining the target jaw position in this embodiment includes the following steps S161 to S163.

Step S161, displaying the facial image corresponding to the small jaw opening movement frame by frame.

Step S162, acquiring a corresponding frame of facial image as the target image in response to the received instruction. Wherein, the instructions are input by medical personnel through devices such as mouse and keyboard.

Step S163, acquiring the position of the mandible in the target image as the target jaw position.

Based on the above steps S161 to S163, the medical personnel can observe the vertical distance of the anterior tooth area and the posterior tooth area and the positional relationship of the condyle in the glenoid fossa according to the displayed content, so as to input corresponding instructions to select a suitable one. The jaw position in the frame facial image is used as the target jaw position, in order to take into account the stable temporomandibular joint relationship, the aesthetics of the anterior teeth and the sufficient restoration space of the posterior teeth.

Optionally, the method for obtaining the occlusal vertical distance may further include: exporting the dentition scan model with specific coordinates in STL format, and exporting the mandibular movement track in xml format, and obtaining the final virtual elevation between the patient's jaws The results of the jaw position relationship after the vertical distance can be connected to CAD-CAM software to make temporary restorations and final restorations.

Based on the above description of the method for obtaining the vertical distance of occlusion, the present invention further provides a device for obtaining the vertical distance of occlusion. Please refer to FIG. 4 , in an embodiment of the present invention, the acquisition device 4 of the occlusal vertical distance includes a scanning result acquisition module 41, an oral cavity image acquisition module 42, a three-dimensional model acquisition module 43, a data import module 44, and a jaw trajectory acquisition module. module 45 and a vertical distance acquisition module 46 .

The scanning result obtaining module 41 is used for obtaining the scanning result of the dentition of the target object when the target object is in a preset occlusal position.

The oral cavity image acquisition module 42 is used to acquire the oral cavity image of the target object when the target object is in a preset occlusal position, the oral cavity image includes the temporomandibular joint, bony infraorbital rim and Complete dentition.

The three-dimensional model acquisition module 43 is connected to the oral cavity image acquisition module 42, and is used to acquire the three-dimensional model of upper and lower jaws of the target object according to the oral cavity image.

The data import module 44 is connected to the scan result acquisition module 41 and the three-dimensional model acquisition module 43, and is used to import the scan result of the dentition and the three-dimensional model of the upper and lower jaws into the electronic facebow system.

The mandible trajectory acquisition module 44 is connected to the electronic face bow system, and is used to acquire the mandible movement trajectory of the target object by using the electronic face bow system when the target object repeats multiple preset mandibular movements .

The vertical distance acquisition module 45 is connected to the mandibular trajectory acquisition module 44, and is used to acquire the target jaw position and the occlusal vertical distance according to the mandibular movement trajectory of the target subject.

It should be noted that each module in the acquisition device 4 of the occlusal vertical distance described in this embodiment corresponds one-to-one to steps S11 to S16 in the method for obtaining the occlusal vertical distance shown in FIG. 1 , and the acquisition of the occlusal vertical distance The improvement or deformation of the method is applicable to the acquisition device 4 of the vertical distance of bite described in this embodiment. In order to save the length of the description, the description of the acquisition device 4 of the occlusal vertical distance will not be repeated here. Furthermore, in some embodiments, the electronic facebow system may be included inside the bite vertical distance acquisition device 4 . In some other embodiments, the electronic facebow system can also be arranged outside the acquisition device 4 of the vertical occlusion distance, and communicated with the acquisition device 4 of the vertical occlusion distance.

Based on the above description of the method for obtaining the occlusal vertical distance, the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the occlusal vertical distance shown in Figure 1 is realized. method of obtaining .

Based on the above description of the method for obtaining the occlusal vertical distance, the present invention also provides an electronic device. Specifically, referring to FIG. 5 , in an embodiment of the present invention, the electronic device 500 includes a memory 510 and a processor 520 . The memory 510 stores a computer program, and the processor 520 communicates with the memory 510. When the computer program is invoked, the method for obtaining the vertical distance of occlusion shown in FIG. 1 is executed.

Optionally, the electronic device 500 may further include a display 530, which is connected in communication with the memory 510 and the processor 520, and is configured to display a GUI interactive interface related to the method for obtaining the occlusal vertical distance.

The scope of protection of the method for obtaining the occlusal vertical distance described in the present invention is not limited to the execution sequence of the steps listed in this embodiment, and all the schemes realized by the increase or decrease of steps and the replacement of steps in the prior art according to the principles of the present invention include Within the protection scope of the present invention.

The present invention also provides a device for obtaining the vertical distance of occlusion, which can realize the method for obtaining the vertical distance of occlusion in the present invention, but the device for realizing the method for obtaining the vertical distance of occlusion in the present invention Including but not limited to the structure of the acquiring device for occlusal vertical distance listed in this embodiment, all structural deformations and replacements in the prior art based on the principle of the present invention are included in the scope of protection of the present invention.

According to the above description, based on the acquisition method of the occlusal vertical distance described in one or more embodiments of the present invention, firstly, the scanning result of the dentition of the target object can be obtained through the intraoral scanning device, and the digitized dentition can be obtained by using the optical signal receiver as a medium The impression is printed to match the real dentition in the target subject's mouth. Using the digital dentition impression as an intermediary, the method can import the three-dimensional model of the upper and lower jaws established based on the oral image of the target object into the electronic facebow system, so as to track and record the mandible movement of the target object in real time , so that the dynamic visualization of the temporomandibular joint is convenient for medical personnel to obtain the required jaw position relationship. Therefore, the acquisition method of the occlusal vertical distance can provide an ideal and convenient solution for the key step of occlusal reconstruction - increasing the vertical distance, and then make the three-dimensional virtual patient develop towards the four-dimensional dynamic direction, and initially establish a four-dimensional virtual dental patient. , making the dynamic connection between the maxillofacial hard tissues more intuitive, and further realizing the visualization and dynamics of the digital oral cavity, thus providing medical staff with new clinical solutions to meet the higher diagnosis and treatment needs of patients.

To sum up, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (10)

1. an acquisition method of occlusal vertical distance, is characterized in that, the acquisition method of described occlusal vertical distance comprises: Acquiring the scan result of the dentition of the target object when the target object is in a preset occlusal position; acquiring an oral cavity image of the target object when the target object is in a preset occlusal position, the oral cavity image including the temporomandibular joint, bony infraorbital rim, and complete dentition of the target object; Acquiring a three-dimensional model of the upper and lower jaws of the target subject according to the oral image; Importing the scanning result of the dentition and the three-dimensional model of the upper and lower jaws into the electronic facebow system; During the preset mandibular movement of the target subject, using the electronic face bow system to acquire the mandibular movement trajectory of the target subject; The target jaw position and the occlusal vertical distance are acquired according to the mandibular movement track of the target object. 2 . The method for obtaining the vertical distance of occlusion according to claim 1 , wherein the preset occlusal position is the maximum cusp crossing position. 3 . 3. The method for obtaining the occlusal vertical distance according to claim 1, wherein the method for obtaining the occlusal vertical distance further comprises: performing a scan on the dentition scan results and the three-dimensional model of the upper and lower jaws based on the tooth calibration points. Registration. 4. The acquisition method of the occlusal vertical distance according to claim 1, wherein the implementation method of acquiring the three-dimensional model of the upper and lower jaws of the target object according to the oral cavity image comprises: Processing the temporomandibular joint space in the oral cavity image according to the gray scale threshold range of bones and teeth, so that the temporomandibular joint fossa is separated from the condyle to obtain a complete upper and lower jaw; Performing three-dimensional reconstruction according to the complete upper and lower jaws to obtain the three-dimensional model of the upper and lower jaws. 5 . The method for obtaining the vertical occlusal distance according to claim 1 , further comprising: replacing the dentition in the three-dimensional model of the upper and lower jaws with the scanning result of the dentition. 6 . 6. The method for obtaining the occlusal vertical distance according to claim 5, characterized in that the method for obtaining the occlusal vertical distance further comprises: based on the preset calibration points of the occlusal surface of the teeth, the jaw in the electronic facebow system The mandibular occlusal surface of the bone and the real occlusal surface of the target object are marked, so as to obtain the facial hard tissue registration result of the target object. 7. The method for obtaining the vertical distance of occlusion according to claim 1, wherein the preset mandibular movement includes a small jaw opening movement, and the mandibular movement track includes multiple frames of facial images to obtain the realization of the target jaw position Methods include: Displaying the facial image corresponding to the small jaw opening movement frame by frame; Acquiring a corresponding frame of facial image as the target image in response to the received instruction; The position of the mandible in the target image is acquired as the target jaw position. 8. An acquisition device for occlusal vertical distance, characterized in that, the acquisition device for occlusal vertical distance comprises: A scan result acquisition module, configured to acquire the scan result of the dentition of the target object when the target object is in a preset occlusal position; An oral cavity image acquisition module, configured to acquire an oral cavity image of the target object when the target object is in a preset occlusal position, the oral cavity image includes the temporomandibular joint, bony infraorbital rim, and complete teeth of the target object List; A three-dimensional model acquisition module, configured to acquire a three-dimensional model of the upper and lower jaws of the target subject according to the oral image; A data import module for importing the scan results of the dentition and the three-dimensional models of the upper and lower jaws into the electronic facebow system; A mandibular track acquiring module, configured to use the electronic facebow system to acquire the mandible track of the target subject during the process of the target subject repeating multiple preset mandibular movements; The vertical distance obtaining module is used to obtain the target jaw position and the vertical distance of occlusion according to the mandibular movement trajectory of the target object. 9. A computer-readable storage medium, on which a computer program is stored, characterized in that: when the computer program is executed by a processor, the method for obtaining the occlusal vertical distance according to any one of claims 1-7 is implemented. 10. An electronic device, characterized in that the electronic device comprises: memory storing a computer program; The processor is connected in communication with the memory, and executes the method for obtaining the vertical distance of occlusion according to any one of claims 1-7 when invoking the computer program.

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