60 results about "Mandibular dentition" patented technology

The embodiment of the invention relates to the technical field of medical instruments, and discloses a mandibular movement modeling method, electronic equipment and a storable storage.The mandibular movement modeling method comprises the steps that image data pictures of the mandible of a patient at different positions are received, and a three-dimensional maxillary model and a mandibular model are digitized; the image data picture at least can display a part of maxillary dentition and a part of mandibular dentition; according to the relative position of the maxillary dentition and the mandibular dentition in the image data picture, determining the spatial position and posture of the digital three-dimensional mandibular model relative to the maxillary model; wherein the image data pictures of different positions of the mandible correspondingly determine the spatial position and posture of one mandible model; and analyzing each spatial position and posture of the determined mandibular model to obtain a movement track of the mandibular model relative to the maxillary model, thereby solving the problem of automatically establishing the mandibular dynamic movement model conforming to the actual condition of the patient.

The invention discloses an occlusion contact quantitative analysis method and system for three-dimensional dentition scanning data and a storage medium, and relates to the field of oral medicine. The method comprises the following steps: acquiring upper and lower jaw dentition triangular mesh curved surface data by utilizing three-dimensional optical scanning; the method comprises the following steps: copying data of triangular mesh curved surfaces of dentitions of upper and lower jaws, independently cutting each tooth, and enabling the cut data to comprise a complete occlusal surface of the tooth; judging whether each triangular mesh on the grid curved surface of each cut tooth is an occlusion contact surface or not; and the size of the occlusal force is calculated according to the occlusal contact surface and the pressure intensity in the occlusal state. According to the invention, accurate quantitative analysis of the occlusal force and direction of each tooth can be realized, the cost is low, and the operation is simple and convenient.

Provided in one aspect of the present application is a dental instrument, comprising: a U-shaped base support, in the upper and lower sides of which a U-shaped first groove and a U-shaped second groove are respectively formed; an upper occlusion module, which is a U-shaped elongated body fixed to the first groove, and one side of which away from the bottom of the first groove is recessed inwards to form a cavity that receives a patient's maxillary dentition and has a geometric shape customized based on the patient's maxillary dentition; and a lower occlusion module, which is a U-shaped elongated body fixed to the second groove, and one side of which away from the bottom of the second groove is recessed inwards to form a cavity that receives the patient's mandibular dentition and has a geometric shape customized based on the patient's mandibular dentition.

The invention provides a computer-implemented method for determining the occlusion relationship of three-dimensional digital models of maxillary and mandibular dentitions based on tooth photos, which comprises the following steps: acquiring a first photo of teeth of a patient in an occlusion state, the first photo comprising a plurality of maxillary teeth and a plurality of mandibular teeth; obtaining a first three-dimensional digital model and a second three-dimensional digital model respectively representing the upper jaw dentition and the lower jaw dentition of the patient; rendering the first three-dimensional digital model and the second three-dimensional digital model to obtain a first rendering graph; predicting an optical flow between the first photo and the first rendering graph by using a trained optical flow neural network based on the first photo and the first rendering graph; and based on the optical flow, calculating a first spatial position transformation relationship which can transform the relative position relationship between the first and second three-dimensional digital models to a state closer to the bite state shown by the first photograph, with a solution to solve the PnP problem, and calculating a second spatial position transformation relationship which can transform the relative position relationship between the first and second three-dimensional digital models to a state closer to the bite state shown by the first photograph.

The embodiment of the invention provides a dental system for occlusal adjustment and a generation method, the dental system for occlusal adjustment comprises N correction instruments for gradually realizing a correction plan step by step, each of the N correction instruments is provided with an upper jaw shell-shaped body for accommodating an upper jaw dentition and a lower jaw shell-shaped body for accommodating a lower jaw dentition, the N upper jaw shell-shaped bodies are respectively provided with an adjusting part for opening the occlusion height of anterior teeth, the N lower jaw shell-shaped bodies are respectively provided with a geometric structure for applying a pressing force to the lower jaw teeth, and the N lower jaw shell-shaped bodies are used for completing the pressing movement in the correction plan step by step for the teeth in the anterior tooth area of the lower jaw. The N adjusting parts enable the relative position relation of the upper and lower jaw teeth in the anterior tooth area to be consistent in the vertical direction in the correction process, and N is a natural number greater than or equal to 2.

The utility model discloses a dental instrument for stopping snore, which comprises an upper jaw shell-shaped dental instrument worn on the upper jaw dentition of a patient, a lower jaw shell-shaped dental instrument worn on the lower jaw dentition of the patient, and a first mounting part arranged on the cheek side of the upper jaw shell-shaped dental instrument and close to the anterior teeth, the connecting piece is arranged on the cheek side of the lower jaw shell-shaped dental instrument and is close to the rear teeth; wherein the first mounting part comprises a convex column which convexly extends away from the cheek side surface of the upper jaw shell-shaped dental instrument; the connecting piece comprises a hooking part, an elastic part and a second mounting part which are connected in sequence and hooked with the first mounting part on the same side; the connecting piece is movably connected to the cheek side surface of the lower jaw shell-shaped dental instrument through the second mounting part; and the hooking part and the convex column hook enable the lower jaw of the patient to move forwards to a preset position in a sagittal manner, so that the airway of the patient is opened, and the snore of the patient is inhibited.

The utility model provides a sliding type gap retainer which comprises a left resin base, a right resin base, a left retainer with one end embedded in the left resin base and a right retainer with one end embedded in the right resin base, and artificial teeth suitable for being matched with lacked deciduous tooth gap parts are connected to the left resin base or / and the right resin base. A sliding accessory is connected to the ends, located on the anterior tooth tongue side, of the left and right resin bases, the sliding accessory comprises a left sliding block embedded in the left resin base and a right sliding block embedded in the right resin base, left and right sliding holes which are transversely through and opposite are formed in the left and right sliding blocks respectively, and sliding rods with two bent ends are slidably connected into the left and right sliding holes; grooves communicated with the sliding holes are transversely formed in the ends, away from each other, of the left and right sliding blocks, and the two bent ends of the sliding rod slide in the left and right grooves in a matched mode. The left sliding block and the right sliding block in the sliding type gap retainer can slide freely in the transverse direction of the sliding rod, and growth of the transverse width of the lower jaw dentition, the alveolar bone and the jaw bone of a child cannot be limited.

The present invention relates to the technical field of medical devices, and particularly relates to a positioning structure and method for osteotomy and bone reconstruction. The positioning structure for osteotomy and bone reconstruction includes a positioning assembly; the positioning assembly includes an upper jaw positioning guide plate, a lower jaw osteotomy guide plate, and a reconstructed bone positioning guide plate; the upper jaw positioning guide plate has an upper jaw occlusal surface, an upper N-shaped splicing mechanism, a plurality of positioning holes, and a plurality of fixing holes; the lower jaw osteotomy guide plate has a lower N-shaped splicing mechanism, a connection area, a lower jaw lower edge indication area, and an osteotomy guiding surface; the reconstructed bone positioning guide plate includes an indication guide plate and a plurality of C-shaped connecting rods; after the upper jaw positioning guide plate is fixed, the insertion and cooperation of the two lower jaw guide plates can guide all the key steps of the operation, without repeated disassembly and adjustment, and maintain accurate positioning and intermaxillary distance to facilitate subsequent implant restoration; based on the upper jaw dentition, the lower jaw osteotomy position and the reconstructed bone position can be positioned, and it can be applied to patients with tooth loosening or lower jaw dentition loss caused by various reasons.

A mouth-operated control device comprising an arched casing (10) configured for at least part of the casing (10) to be arranged between a maxillary dentition and a mandibular dentition of the user in an operating position, a first at least bidirectional input interface (21) housed in the concave region of the casing (10) and accessible to the tongue of the user; a second at least bidirectional input interface (22) in the part of the casing (10) intended for being arranged between the maxillary dentition and the mandibular dentition selected to be arranged facing the mandibular dentition of the user, allowing the operation thereof with the relative movement between the maxillary dentition and the mandibular dentition of the user; and a control electronics (30) connected to all the input interfaces (21, 22, 23) for the transmission of control signals to an external device.

One aspect of the invention provides a computer-implemented method for generating a target position of a selected tooth in a selected direction. The method comprises the following steps: acquiring a first three-dimensional digital model representing upper and lower jaw dentitions under an initial tooth layout of a patient; obtaining a side position film of the patient; carrying out registration on the first three-dimensional digital model and the side position sheet; using a trained first deep neural network to predict a target position of a selected tooth of a first dentition in the lateral position film in a selected direction, wherein the first dentition is the maxillary dentition or the mandibular dentition; and generating a target position of the selected tooth of the first dentition in the first three-dimensional digital model in the selected direction based on the target position of the selected tooth of the first dentition in the lateral position piece in the selected direction and the registration result.

The invention discloses an orthodontic tooth movement measurement method based on a circular coordinate system, which comprises the following steps of: acquiring cone beam CT (Computed Tomography) images of upper and lower jaw dentitions and alveolar bones before and after orthodontics, selecting the maximum section of the tooth in the lip-tongue direction along a tooth long axis, and intercepting a relative position map of the teeth and the alveolar bones before and after orthodontics; extracting outer contour diagrams of relative positions of the teeth and the alveolar bone before and after orthodontics from the relative position diagrams of the teeth and the alveolar bone before and after orthodontics, and overlapping the outer contour diagrams; matching the outer contour of the tooth before orthodontic treatment with the outer contour of the tooth after orthodontic treatment; the orthodontic tooth movement is measured based on the circular coordinate system, if the rotation radius is larger than or equal to 10 times of the root length, the orthodontic tooth movement mode in the lip-tongue direction is parallel movement, and if the rotation radius is smaller than 10 times of the root length, the orthodontic tooth movement mode in the lip-tongue direction is inclined movement. According to the method, the orthodontic movement mode is defined from the mathematical theory for the first time, the mathematical theory boundary value is given, and the orthodontic movement modes of teeth in the lip-tongue direction and the vertical direction are quantitatively analyzed.

An oral movement control device comprising: an arcuate housing (10) designed in an operative position such that at least part of the housing (10) is disposed between an upper jaw dentition and a lower jaw dentition of a user; an at least bidirectional first input interface (21) accommodated in the concave area of the housing (10) and accessible by the tongue of the user; an at least bi-directional second input interface (22) located in a portion of the housing (10) for arrangement between the maxillary dentition and the mandibular dentition, selected to be arranged facing the user's mandibular dentition, allowing the second input interface to operate with relative movement between the user's maxillary dentition and mandibular dentition; and control electronics (30) connected to all of the input interfaces (21, 22, 23) to transmit control signals to an external device.

The present invention relates to an artificial intelligence-based dentition matching and jaw bone segmentation method, system and medium, including the following steps: S1, constructing a dentition matching algorithm under constrained movement to obtain an objective function for matching a digital dentition model with the dentition of a skull model; S2, minimizing the objective function to obtain an automatic matching method for the upper and lower dentitions with the dentition of the skull model, and the translation and rotation methods of the upper and lower dentitions. The jaw bone segmentation method includes: using this dentition matching method to replace the tooth part on the three-dimensional skull model with the upper and lower dentitions of the digital dentition model; then automatically segmenting the condyles of the three-dimensional skull model to complete the automatic segmentation of the jaw bone of the three-dimensional skull model. This application constructs an intelligent dentition matching method and jaw bone segmentation method for orthognathic surgery, which can automatically complete the important links of jaw bone segmentation and dentition matching in digital orthognathic surgery design by computer, so as to reduce the workload of clinicians and improve work efficiency.

The utility model discloses an intraoral electrical stimulation device capable of preventing breathing blockage, which relates to the technical field of electrical stimulation and comprises a breathing sensor and a packaging tooth socket. The packaging tooth socket comprises a first insulating layer, a second insulating layer and an electrical stimulation assembly. Wherein the outline of the first insulating layer is consistent with that of the mandibular dentition model, and blind holes are formed in the two sides of the inner side wall of the first insulating layer; the second insulating layer is arranged on the first insulating layer, the contact position of the second insulating layer and the first insulating layer is sealed, and an accommodating space is arranged between the first insulating layer and the second insulating layer; the electrical stimulation assembly is arranged in the containing space and is in communication connection with the respiration sensor, and a stimulation electrode of the electrical stimulation assembly penetrates through the first insulating layer through the blind hole to make contact with the mucous membrane. The stimulation circuit is wrapped in the packaging tooth socket through the film pressing technology, the tongue is induced to stretch out by stimulating the musculus at the bottom of the mouth, invasive operation is not involved in daily use or maintenance, a patient can accept the device easily, and the blockage condition of the oropharynx is relieved.

The invention discloses a manufacturing method of an integrated fiber post core, which comprises the following steps: (1) acquiring oral data of a patient to prepare an upper and lower jaw dentition plaster model, preparing a defect model according to the upper and lower jaw dentition plaster model, and preparing a root canal; (2) acquiring a first silicone rubber pile way digital model by using a scanner; (3) carrying out trimming treatment on the first silicon rubber pile road digital model by utilizing software to obtain a second silicon rubber pile road digital model; and (4) scanning the plaster model by using a scanner to obtain a maxillary and mandibular dentition digital model, and merging the second silicone rubber stake way digital model and the maxillary and mandibular dentition digital model to obtain a second maxillary and mandibular dentition digital model with a stake way. And importing the second maxillary and mandibular dentition digital model into computer design software for post-core design to obtain an integrated post-core digital model, and importing the integrated post-core digital model into CAM equipment for milling to obtain an integrated fiber post-core.

The application discloses a virtual occlusion detection and design method based on intraoral three-dimensional scanning and relates to the field of oral prosthetics. The application comprises the following steps: acquiring complete upper and lower dental arch data and static occlusion data of a patient in a static state; acquiring a dynamic motion trajectory of teeth by using the static occlusion data to correspond to the position of the teeth in a lower jaw motion in real time; combining the complete upper and lower dental arch data in the static state and the lower jaw motion trajectory to complete motion trajectory integration; drawing a boundary along a crown gum margin and an adjacent contact area in the static dental arch data to obtain a single tooth by segmentation; taking a crown cheek side as a common area, registering the segmented single tooth data to occlusion data one by one to obtain occlusion data after tooth-by-tooth registration; and designing a prosthesis based on the dental arch data and the occlusion data after tooth-by-tooth registration. The application can obtain accurate static and dynamic occlusion data and greatly improves the precision and efficiency of prosthesis design and production through automatic virtual occlusion detection and virtual adjustment.

The application discloses a 3D printing resin jaw fork fixing method and system for complex dentition patients, relates to the technical field of oral digital restoration, and comprises the following steps: obtaining intraoral scanning data of the dentition patient, extracting mandibular dentition support points, undercut locking areas and dynamic occlusion interference boundaries based on the occlusion point trajectory, establishing a three-dimensional digital model of the mandibular full dentition and occlusion relationship with bearing stability weight and motion avoidance constraints, and performing coordinate unification and assembly gap matching according to the interface specifications of the scanning face bow, the occlusion recorder and the mandibular metal jaw fork to obtain a preliminary docking feature set. The 3D printing resin jaw fork fixing method and system for complex dentition patients improve the accuracy, repeatability and clinical operation efficiency of occlusion recording and mandibular motion analysis of complex dentition patients.

A computer-implemented method for generating a target position of a selected tooth in a selected direction, comprising: acquiring a first three-dimensional digital model representing upper and lower dental arches in an initial tooth arrangement of a patient; acquiring a lateral cephalogram of the patient; performing registration on the first three-dimensional digital model and the lateral cephalogram; using a trained first deep neural network to predict a target position of a selected tooth in a first dental arch in a selected direction in the lateral cephalogram, wherein the first dental arch is either the upper or lower dental arch; and on the basis of the target position of the selected tooth in the first dental arch in the selected direction in the lateral cephalogram and a registration result, generating a target position of the selected tooth in the first dental arch in the selected direction in the first three-dimensional digital model.

A mouth-operated control device comprising an arched casing (10) configured for at least part of the casing (10) to be arranged between a maxillary dentition and a mandibular dentition of the user in an operating position, a first at least bidirectional input interface (21) housed in the concave region of the casing (10) and accessible to the tongue of the user; a second at least bidirectional input interface (22) in the part of the casing (10) intended for being arranged between the maxillary dentition and the mandibular dentition selected to be arranged facing the mandibular dentition of the user, allowing the operation thereof with the relative movement between the maxillary dentition and the mandibular dentition of the user; and a control electronics (30) connected to all the input interfaces (21, 22, 23) for the transmission of control signals to an external device.

A computer-executed method for generating a contact release and / or gap closure scheme, the method comprising: acquiring a first three-dimensional digital model, which represents the maxillary dentition and mandibular dentition of an initial tooth arrangement of a patient; acquiring a set of predetermined constraints; on the basis of the constraints, performing alignment on the first three-dimensional digital model; on the basis of the first three-dimensional digital model and the first three-dimensional digital model which has been subjected to alignment, generating a contact release and / or gap closure scheme by using a trained first deep neural network (200), and updating the constraints on the basis of the contact release and / or gap closure scheme; and iterating at least twice the process of performing alignment on the first three-dimensional digital model and the process of generating a contact release and / or gap disclosure scheme, so as to obtain a final contact release and / or gap closure scheme.

Provided in one aspect of the present application is a computer-executed method for generating a horizontal target position of at least one of posterior teeth and canines on the basis of a WALA ridge, the method comprising: acquiring a first three-dimensional digital model representing maxillary and mandibular dentitions under an initial tooth arrangement of a patient; using a trained first deep neural network to annotate a WALA ridge of a maxillary dentition model or mandibular dentition model of the first three-dimensional digital model and selected key points of teeth; and on the basis of the WALA ridge and the selected key points of the teeth, using a trained second deep neural network to generate a horizontal target position of at least one of posterior teeth and canines of a first dentition of the first three-dimensional digital model, wherein the first dentition is the maxillary dentition or the mandibular dentition.

One aspect of the invention provides a computer-implemented method for generating a horizontal target position of at least one of a posterior tooth and a canine tooth based on a WALA spine. The method comprises the following steps: acquiring a first three-dimensional digital model representing upper and lower jaw dentitions under an initial tooth layout of a patient; using a trained first deep neural network to mark the WALA spine of the maxillary dentition model or the mandibular dentition model of the first three-dimensional digital model and the selected key point of each tooth; and using a trained second deep neural network to generate a horizontal target position of at least one of posterior teeth and canine teeth of a first dentition of the first three-dimensional digital model based on the WALA spine and a selected key point of each tooth, the first dentition being the maxillary dentition or the mandibular dentition.

The invention provides a dental instrument system for adjusting the lower jaw of a patient from a current position to a target position, the dental instrument system comprises a group of N successive dental instruments which are successively worn in stages, and each dental instrument comprises an upper occlusion module, a lower occlusion module and a lower occlusion module, one side, far away from the occlusal surface, of the tooth accommodating cavity is recessed inwards to form a cavity for accommodating the maxillary dentition of a patient, and the geometrical shape of the tooth accommodating cavity is customized according to the maxillary dentition of the patient; the lower occlusion module is a U-shaped strip-shaped entity, one side, far away from the occlusion surface, of the lower occlusion module is concave inwards to form a cavity for accommodating the mandibular dentition of the patient, the geometrical shape of the tooth accommodating cavity is customized according to the mandibular dentition of the patient, and the upper occlusion module and the lower occlusion module are fixed with each other; the relative positions of the tooth accommodating cavities of the upper occlusion module and the lower occlusion module of the N successive dental instruments enable the lower jaw of the patient to be gradually corrected from the current position to the target position by successively wearing the N successive dental instruments, wherein N is a natural number greater than or equal to 2.

The utility model discloses a snoring stopper, comprising a snoring stopper body and a limiting part for limiting the horizontal movement of a patient's mandible; the snoring stopper body comprises an upper shell-shaped dental instrument worn on the patient's upper jaw dentition, a lower jaw shell-shaped dental instrument worn on the patient's lower jaw dentition and a sagittal retaining device, the upper shell-shaped dental instrument and the lower jaw shell-shaped dental instrument respectively comprise a plurality of cavities arranged in a U shape for accommodating a plurality of teeth, when the upper and lower jaws are occluded, the sagittal retaining device sagittally retains the lower jaw at a predetermined position capable of opening an airway; the limiting part is located on the side surface of the cavity in the posterior tooth area of ​​the upper shell-shaped dental instrument and / or the lower jaw shell-shaped dental instrument, and is convexly arranged in the direction of the opposite jaw, the limiting part comprises a first limiting member and a second limiting member, the first limiting member and the second limiting member respectively abut against the side surface of the cavity at the corresponding position of the posterior tooth area of ​​the opposite jaw for limiting the horizontal leftward and horizontal rightward movement of the lower jaw, so as to keep the lower jaw at the predetermined position.

The invention provides a personalized guide plate for maxillofacial nerve three-dimensional navigation and a positioning method, the personalized guide plate for maxillofacial nerve three-dimensional navigation comprises a fixing part and a navigation part, and the fixing part and the navigation part are designed according to maxillofacial three-dimensional imaging data of a patient and are formed through 3D integrated printing; and the navigation part is provided with a navigation positioning channel corresponding to a maxillofacial nerve of a patient. The fixing part and the navigation part are integrally printed and manufactured based on the maxillofacial three-dimensional imaging data of the patient, so that the matching degree of the fixing part and the maxillary / mandibular dentition form of the patient is relatively high, the matching degree of the navigation part and the face of the patient is also relatively high, and the setting accuracy of a navigation positioning channel is also relatively high; therefore, after the fixing part is arranged between the maxillary dentition and the mandibular dentition of the patient and is occluded, compared with a conventional pure face soft tissue fixing method, the navigation positioning channel on the navigation part is more accurate and reliable in positioning.

The utility model discloses a dental instrument for stopping snore. The dental instrument comprises an upper jaw shell-shaped dental instrument for accommodating an upper jaw dentition of a patient and a lower jaw shell-shaped dental instrument for accommodating a lower jaw dentition of the patient, the fixing part is arranged at the position, close to anterior teeth, of the cheek side of the upper jaw shell-shaped dental instrument, and one end of the connecting rod is connected to the position, close to posterior teeth, of the cheek side of the lower jaw shell-shaped dental instrument, or the fixing part is arranged at the position, close to posterior teeth, of the cheek side of the lower jaw shell-shaped dental instrument. One end of the connecting rod is connected to the position, close to anterior teeth, of the cheek side of the maxillary shell-shaped dental instrument; wherein the fixing part comprises a convex column, the convex column protrudes in the far tooth direction, a plurality of mounting holes are formed in the other end of the connecting rod at intervals in the long axis direction of the connecting rod, the mounting holes and the convex column can be installed in a matched mode so that the lower jaw can generate different sagittal movement amounts, and the lower jaw of the patient can be kept at different front positions.

The invention discloses an electric toothbrush hanger and a tooth brushing data processing system, and relates to the technical field of electric toothbrushes. The electric toothbrush hanger comprises a controller, a storage module, a Bluetooth communication module and a hanger display module; the storage module stores a dental model graph, and the dental model graph comprises an opened maxillary dentition and an opened mandibular dentition; the controller is used for controlling the hanger display module to display a dental model drawing; the controller is used for receiving tooth brushing data sent by the electric toothbrush through the Bluetooth communication module, and the tooth brushing data comprises a current tooth brushing area; and the controller controls the hanger display module to mark a current tooth brushing area on the dental model drawing. According to the invention, the brushing effect of a user on the maxillary dentition and the mandibular dentition can be improved.

One aspect of this application provides a dental instrument comprising a first occlusal module in the form of a U-shaped elongated solid, which is recessed on one side near a first dentition to form a first tooth receiving cavity for receiving a second dentition. The first dentition is a maxillary or mandibular dentition, and the first and second dentitions are opposing dentitions. A first protruding feature is provided within the first tooth receiving cavity. When the dental instrument is in place, the first protruding feature engages with the second dentition to enhance the retention of the second dentition within the first tooth receiving cavity.

On one hand, the utility model provides a dental instrument which is U-shaped, the upper side of the dental instrument is provided with a cavity for accommodating the upper jaw dentition of a patient, the lower side of the dental instrument is provided with a cavity for accommodating the lower jaw dentition of the patient, the dental instrument comprises a first section and a second section which are connected along the front-back direction, and the upper side and the lower side of the dental instrument are folded at the first section; the upper side and the lower side of the dental instrument are forked on the second section in the direction from the first section to the second section, and under the action of occlusal force of a patient, the forked part between the upper side and the lower side of the second section of the dental instrument can be reduced, so that rebounding force generated by elastic deformation can lower corresponding teeth of the patient.

This invention discloses a virtual jawbone simulation method and system based on intraoral 3D scanning, relating to the field of computer simulation. The method includes: acquiring intraoral 3D scanning data and constructing a virtual 3D model of the maxillary and mandibular dentition; collecting intraoral scanning data according to continuous data frames of the user's opening and closing movements, identifying the relative motion information between the maxillary and mandibular dentition during the opening and closing process, and establishing a mapping relationship between opening and closing parameters and intraoral scanning data; constructing a dynamic temporal opening and closing model based on the mapping relationship, and embedding the dynamic temporal opening and closing model into the virtual 3D model to perform dynamic simulation of the maxilla and mandible. This application solves the technical problem of low matching degree between the simulated motion trajectory and the actual physiological movement law of the human mandible in existing jawbone simulations, which makes it impossible to accurately reproduce the dynamic occlusal process. It achieves the technical effect of improving the matching degree between the virtual jawbone simulation motion trajectory and the actual physiological movement law of the human mandible, and accurately reproducing the dynamic occlusal process of the maxilla and mandible.