74 results about "Maxillary 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 embodiment of the utility model provides a functional appliance for a high-angle mandibular retraction patient. The functional appliance comprises an upper jaw appliance, a lower jaw appliance, a head cap and a hooking part, the maxillary appliance is provided with a first induction inclined plane, a first adjacent hook, a retention snap ring and a hook; the first induction inclined surface and the first adjacent hook are arranged at the position of the upper bicuspid; the retention snap ring is arranged at the position of a first molar of the upper jaw; the hooks are arranged at the positions of lateral incisor teeth and upper canine teeth of the upper jaw; the lower jaw appliance is provided with a second induction inclined surface and a second adjacent hook; the second induction inclined surface is arranged at the position of the lower bicuspid and is matched with the first induction inclined surface; the second adjacent hook is arranged at the position of the lower bicuspid; the head cap is worn on the head of a corrected person; one end of the hooking component is connected with the head cap, and the other end of the hooking component is connected with the hook. The technical effects of increasing vertical control, lowering the maxillary dentition, adjusting the occlusal plane and improving the growth type of high-angle teenager patients can be achieved while the growth and development of the mandible are guided.

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 invention discloses an occlusal stable temporomandibular joint disorder therapeutic jaw plate and a preparation method thereof, and belongs to the technical field of dental restoration. The preparation method comprises the following steps: acquiring the upper and lower jaw position relation of a joint hinge shaft of a patient, and transferring to a jaw frame; the method comprises the following steps: importing a jaw frame and an occlusion relationship into computer software, designing an occlusion plate worn on an upper jaw dentition, and performing parameter adjustment: adjusting the occlusion height until a rear tooth tip is separated from contact by 1-3mm, only one buccal tooth tip of each of two premolars in the left lower and right lower back tooth areas and the first and second molars is in contact with the biteplate, and canine teeth and lower anterior teeth are in contact with the biteplate; and 3D printing is conducted according to the adjusted parameters of the biteplate, and the biteplate is manufactured. According to the manufacturing method, accurate and rapid manufacturing of the occlusal stable temporomandibular joint disorder treatment jaw plate can be achieved, and through combination of the semi-adjustable jaw frame and digital design, the treatment success rate can be remarkably increased, the pain of a patient can be relieved, and the life quality can be improved.

An oral appliance includes an upper arch and a seal. The upper arch may be positioned proximate a maxillary dentition of a user. The upper arch includes a first tab and a second tab positioned on opposite sides of a plane substantially bisecting the upper arch. The seal defines a first receptacle and a second receptacle that may receive the first and second tabs to couple the seal to the upper arch and to inhibit breathing through a mouth of the user.

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.

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.

This invention belongs to the field of anti-snoring technology, specifically a silicone anti-snoring device. It comprises an integrally molded silicone body consisting of an occlusal pad, an upper labial shield, a tongue induction screen, and a lower labial shield. Both ends of the upper and lower labial shields extend to the end face of the occlusal pad via buccal screens. A connecting portion exists between the occlusal pad and the tongue induction screen. This connecting portion is smooth and without protrusions in the Z-axis, and the corner surface of the occlusal pad away from the connecting portion is smooth. The smooth and non-protruding connecting portion in the Z-axis eliminates the palatal base of the maxillary teeth, making the tongue more easily lifted by the tongue induction screen. The tongue induction screen pushes the tongue from the floor of the mouth to the palatal side of the upper teeth, opening the airway and achieving buccal and lingual muscle balance. Patients can choose one, two, or three stages of mandibular protraction treatment based on their snoring symptom relief and temporomandibular joint symptoms. By protruding the mandible, the airway is further opened.

The present invention discloses a 3D-printed jaw deviation measuring instrument, which includes a U-shaped measuring instrument body, the measuring instrument body matches the dental arch, the tooth-fitting surface of the measuring instrument body is provided with tooth holes matching the dentition, and the arc-shaped outer end surface of the measuring instrument body is provided with a scale. The measuring instrument is designed based on the cusp-socket relationship of the maxillary dentition, and a scale is designed on the outer end surface of the measuring instrument, which can intuitively measure the patient's jaw deviation distance. The jaw deviation measuring instrument is printed using 3D printing technology, and the patient's maxillary plane and facial midline are obtained through a three-dimensional model to determine the offset distance of the mandible on the coronal midline. It is used to guide patients with mandibular deviation to perform rehabilitation training, so as to reduce patients' complications, increase patients' compliance with rehabilitation exercises, reduce the number of visits, reduce the workload of medical staff, and improve patients' quality of life.

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.

This invention discloses a gingival protection device for intermaxillary traction after orthognathic surgery, along with its manufacturing and usage methods. The device is a gingival protection bracket worn on the maxillary dentition, comprising a labial / buccal cover, a palatal cover, a blocking portion, and a connecting bridge. The labial / buccal cover conforms to the highest point of the tooth crown, while the palatal cover conforms to the entire palatal surface of the tooth crown, positioned between the intermaxillary traction rubber band and the gingival soft tissue. The blocking portion forms a protruding structure along the dentition direction on the labial side of the anterior teeth, mechanically limiting the intermaxillary traction rubber band during intermaxillary traction. The connecting bridge connects the labial / buccal cover and the palatal cover together in the posterior molar region on both sides. This device effectively blocks the direct action of the traction rubber band on the gingival soft tissue without affecting postoperative occlusal adjustment, improving posterior traction and occlusal stability and comfort, and aiding in rapid patient recovery. Furthermore, it balances wearing stability with the convenience of patient self-disposal.

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.

The invention discloses a midline positioning ruler for orthognathic surgery and a manufacturing method thereof, and relates to the technical field of medical instruments. The method comprises the following steps: designing a multi-curve positioning rule main body; drawing a limiting structure and a retention structure on the positioning ruler main body; a buckle is virtually designed, and a clamping groove is drawn in the buckle; performing maxillofacial region scanning on the target object, and making an anhydrite tooth model; establishing a virtual three-dimensional cranio-jaw model, performing laser scanning on the anhydrite tooth model to obtain virtual dentition data, and replacing the dentition data in the maxillofacial region data with the virtual dentition data; the positions of the positioning rule main body and the buckle are adjusted; the buckle and the middle occlusion guide plate are virtually connected into a whole; and manufacturing a positioning ruler main body through laser cutting, and performing integrated three-dimensional printing on the buckle and the middle occlusion guide plate. The midline positioning ruler is used for quickly positioning the midline of the maxillary dentition in the orthognathic operation, so that the operation precision is improved, the operation time is saved, the operation efficiency is improved, and the dependence of the operation on the experience of doctors is reduced.

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 discloses a treatment false tooth manufacturing method based on a digital technology, which comprises the following steps: scanning to obtain oral cavity data and a jaw position relationship of a patient, and designing an upper jaw false tooth and a lower jaw false tooth according to the oral cavity data and the jaw position relationship obtained by scanning; an upper jaw base body, an upper jaw dentition body, a lower jaw base body and a lower jaw anterior tooth body are manufactured through 3D printing; bonding the maxillary dentition entity on the maxillary base entity by using an adhesive to form a maxillary denture entity, and bonding the mandibular anterior tooth entity on the mandibular base entity by using an adhesive to form a mandibular denture entity; filling a groove on the mandible base entity with a material to form a resin flat plate; and correcting the resin plate until a correct occlusion relationship is established between the upper jaw denture entity and the lower jaw denture entity. The mode of combining digital design and 3D printing is adopted, the manufacturing process is short, and the manufacturing period of the treatment denture can be remarkably shortened; and the manufactured treatment denture entity and the designed digital treatment denture are high in consistency, so that the manual error is reduced.

The application discloses a dental treatment system, which comprises an arch expander and a shell-shaped appliance for transverse expansion of the upper jaw, the arch expander comprises an expander and a band ring sleeved on the teeth on both sides of the posterior teeth area, and the band ring and the expander are connected through a connecting part; the shell-shaped appliance comprises a shell-shaped body, the shell-shaped body comprises a plurality of tooth receiving cavities, and the shell-shaped body is provided with a screen barrier used in cooperation with the arch expander, the screen barrier comprises a blocking part protruding towards the distal teeth on the buccal side; wherein, after the arch expander and the shell-shaped appliance are worn, the blocking part blocks the contact between the buccinator and the corresponding teeth, so that the corresponding teeth and the corresponding buccinator have a space for accommodating the change of the dental arch from a first position to a second position. The arch expander and the shell-shaped appliance in the dental treatment system jointly act on the upper jaw of the patient, improve the treatment effect during the expansion of the arch, and ensure that the treatment result is consistent with the treatment plan.

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.

1. A shell-shaped dental instrument configured for use in a maxillary dentition, comprising a shell-shaped body (1) provided with a plurality of tooth-receiving cavities (11), wherein the shell-shaped body (1) is further provided with an adjustment portion (2) in a palatal region, and the adjustment portion (2) is configured to adjust a maxillomandibular relative position relationship, and includes a first guide portion (21) and a support (22) for supporting the first guide portion (21), the first guide portion (21) being configured to be located through a portion of a palate corresponding to an anterior tooth region and being connected to the free ends on the lingual side of at least two tooth-receiving cavities (11) of the plurality of tooth-receiving cavities (11) in the anterior tooth region,the first guide portion (21) is configured to tilt towards a mandibular plane of a jaw to allow some anterior teeth in the jaw to slide along the first guide portion (21) and drive the jaw forward to a target orthodontic position; wherein the support (22) is connected to the first guide portion (21) and is configured to form by extending from the gingival ends of some of the plurality of tooth-receiving cavities (11) in a posterior tooth region towards the palate and be partially supported on the palate when the shell-shaped dental instrument is carried. 2. The shell-shaped dental instrument according to claim 1, wherein the first guide portion (21) is configured to extend from the free ends on the lingual side of the at least two tooth-receiving cavities (11) in the anterior tooth region toward an opposite jaw and in a direction away from the anterior teeth. 3. The shell-shaped dental instrument according to claim 2, wherein the first guide portion (21) is provided with a first guide surface (211), the first guide surface (211) being a curved surface and the first guide surface (211) being configured to have a tangent plane at any point on the first guide surface (211), the angle between the tangent plane and the mandibular plane being greater than 0° and less than or equal to 45° 4. The shell-shaped dental instrument according to claim 1, wherein the fitting portion (2) further includes a second guide portion (23), wherein a tooth-proximal end of the second guide portion (23) is connected to the free ends on the lingual side of the at least two tooth-receiving cavities (11) in the anterior tooth region, and a tooth-distal end of the second guide portion (23) is connected to a tooth-proximal end of the first guide portion (21). 5. The shell-shaped dental instrument according to claim 4, wherein the second guide portion (23) is provided with a second guide surface (231) configured to press against the mandibular anterior teeth, and a portion of the second guide surface (231) configured to be in contact with the incisal ends of the mandibular anterior teeth in a plane perpendicular to the longitudinal axes of the mandibular anterior teeth. 6. The shell-shaped dental instrument according to claim 4 or 5, wherein the second guide portion (23) and the first guide portion (21) have, in a sagittal plane, an inverted "V" shaped cross-section, the included angle (α) of the inverted "V" shape being greater than 45° and less than or equal to 150°, and wherein, when the shell-shaped dental instrument is worn, the incisal ends of some mandibular anterior teeth are located at a junction of the second guide portion (23) and the first guide portion (21). 7. The shell-shaped dental instrument according to claim 6, wherein the junction of the second guide portion (23) and the first guide portion (21) is configured to have a distance of 0 mm to 2 mm from a palatal fold. 8. The shell-shaped dental instrument according to any one of claims 1 to 7, wherein the first guide portion (21) has a first palatal side surface configured to be 0 mm to 2 mm from a palatal fold in a vertical direction. 9. The shell-shaped dental instrument according to claim 8, wherein the first palatal side surface of the first guide portion has a surface structure configured to match a surface structure of the palatal fold at a corresponding location. 10. The shell-shaped dental instrument according to any one of claims 4 to 9, wherein the second guide portion (23) is configured to be at least partially out of contact with the surfaces on the lingual side of the teeth in the anterior tooth region. 11. The shell-shaped dental instrument according to any one of claims 1 to 10, wherein the first guide portion (21) is arranged symmetrically around a dental midline. 12. The shell-shaped dental instrument according to any one of claims 4 to 11, wherein the second guide portion (23) is arranged symmetrically around a dental midline. 13. The shell-shaped dental instrument according to any one of claims 1 to 12, wherein the at least two tooth-receiving cavities (11) in the anterior tooth region are configured to be out of contact with the labial side surfaces of the corresponding anterior teeth. 14. The shell-shaped dental instrument according to claim 13, wherein each of the at least two tooth-receiving cavities (11) in the anterior tooth region has an inner labial side surface configured to form a hollow with an outer surface of a respective anterior tooth of the corresponding anterior teeth or wherein each of the at least two tooth-receiving cavities (11) in the anterior tooth region has a hollowed labial side surface. 15. The shell-shaped dental instrument according to any one of claims 1 to 14, wherein the support (22) is connected to the first guide portion (21) by means of a connecting portion (221), the connecting portion (221) is provided with a tongue guide portion (211a), and the tongue guide portion (211a) is a geometric structure configured to be raised or lowered towards a tongue. 16. The shell-shaped dental instrument according to claim 15, wherein in response to the tongue guide portion (211a) being the geometric structure configured to rise towards the tongue, the tongue guide portion (211a) is of a solid structure. 17. The shell-shaped dental instrument according to claim 15, wherein in response to the tongue guide portion (211a) being the geometric structure configured to rise towards the tongue, the tongue guide portion (211a) is of a hollow structure. 18. The shell-shaped dental instrument according to any one of claims 1 to 17, wherein a surface of the support (22) configured to join the palate is configured to match a surface of a palatal fold at a corresponding location on the palate. 19. The shell-shaped dental instrument according to any one of claims 1 to 18, wherein the first guide portion has a reinforcing portion arranged in a sagittal direction. 20. The shell-shaped dental instrument according to claim 19, wherein the reinforcing portion (4) is a reinforcing ridge formed by partially raising or lowering a portion of the first guide portion (21) towards a tongue. 21. A dental instrument system, comprising a plurality of shell-shaped dental instruments, wherein the plurality of shell-shaped dental instruments include at least one shell-shaped dental instrument according to any one of claims 1 to 20, and the plurality of shell-shaped dental instruments have a geometric configuration configured to gradually reposition teeth from an initial position to a target position while adjusting a jaw from a first position to a second position. 22. The dental instrument system according to claim 21, wherein the adjustment portion (2) of each respective shell-shaped dental instrument of at least two shell-shaped dental instruments in successive use among the plurality of shell-shaped dental instruments further includes a second guide portion (23), a tooth-proximal end of the second guide portion (23) being connected to the free ends on the lingual side of the at least two tooth-receiving cavities (11) in the anterior tooth region, and a tooth-distal end of the second guide portion (23) being connected to a tooth-proximal end of the first guide portion (21), the second guide portion (23) and the first guide portion (21) having an inverted "V"-shaped cross-section in a sagittal plane, wherein, when the respective shell-shaped dental instrument is carried,The incisal ends of some of the mandibular anterior teeth are located at a junction of the second guide portion (23) and the first guide portion (21). 23. The dental instrument system according to claim 22, wherein in the at least two shell-shaped dental instruments in successive use, the junction of the second guide portion (23) and the first guide portion (21) in a shell-shaped dental instrument in a later stage is configured to have a first distance from a palatal fold in a vertical direction and a junction of the second guide portion (23) and the first guide portion (21) in a shell-shaped dental instrument in an earlier stage is configured to have a second distance from the palatal fold in the vertical direction, the first distance being greater than the second distance. 24. The dental instrument system according to claim 21, wherein the projections of the first guide portions (21) on the at least two shell-shaped dental instruments in successive use in a horizontal plane have the same minimum length in a sagittal direction. 25. The dental instrument system according to claim 21, wherein in the at least two shell-shaped dental instruments in successive use, a minimum length of a projection of a first guide portion (21) of a shell-shaped dental instrument at a later stage in a horizontal plane in a sagittal direction is greater than a minimum length of a projection of a first guide portion (21) of a shell-shaped dental instrument at a previous stage in the horizontal plane in the sagittal direction.