Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

38 results about "Mandibular dentition" patented technology

The mandibular lateral incisor is the tooth located distally (away from the midline of the face) from both mandibular central incisors of the mouth and mesially (toward the midline of the face) from both mandibular canines.

Occlusion contact quantitative analysis method and system for three-dimensional dentition scanning data and storage medium

PendingCN120713674ADentistryOral medicineDistofacial
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.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY

Method for determining occlusion relation of three-dimensional digital models of upper jaw teeth and lower jaw teeth based on tooth photos

PendingCN120689562AImage enhancementImage analysisUpper Jaw ToothOptical flow
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.
Owner:HANGZHOU ZOHO INFORMATION TECH CO LTD

Sliding type clearance retainer

ActiveCN223350355UOthrodonticsJaw boneSpace Maintainers
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.
Owner:STOMATOLOGICAL HOSPITAL OF CHONGQING MEDICAL UNIV

An osteotomy reconstruction bone positioning structure and method

ActiveCN118319422BBone drill guidesJaw osteotomyLoose tooth
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.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY

Orally actuated control device

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.
Owner:XPND TECHNOLOGIES SL

Artificial Intelligence-Based Tooth Arch Matching and Jaw Segmentation Method, System, and Medium

ActiveCN115517792BImage enhancementImage analysisLower dentitionAuto segmentation
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.
Owner:CHENGDU TIANQI ADDITIVE MFG CO LTD

Intraoral electrical stimulation device capable of preventing breathing obstruction

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.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

A virtual occlusion detection and design method and system based on intraoral three-dimensional scanning

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.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY +1

3D-printed resin jaw fork fixation method and system for complex dentition patients

PendingCN122442951AOcclusal interferenceDigital mockup
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.
Owner:ANHUI MEDICAL UNIV

Orally actuated control device

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.
Owner:XPND TECHNOLOGIES SL

Anti-snoring device

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.
Owner:ZHEJIANG YINCHILI MEDICAL TECH CO LTD

Personalized guide plate for three-dimensional navigation of maxillofacial nerves and positioning method

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.
Owner:SHENZHEN JIAHONG DENTAL MEDICAL CO LTD

Electric toothbrush hanger and tooth brushing data processing system

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.
Owner:CHONGQING DENCARE CORP

Dental instrument

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.
Owner:WUXI EA MEDICAL INSTR TECH

Dental instrument

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.
Owner:WUXI EA MEDICAL INSTR TECH

Virtual jaw simulation method and system based on intraoral 3D scanning

PendingCN122089944Aimprove matchAccurately restore technical effectsMedical images3D modellingHuman bodyPhysiological movement
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.
Owner:SHANDONG INNOWAY MEDICAL TECH CO LTD

Image for displaying information about the intraoral scanner

This product is an image for setting up the imaging, displaying setting information, and displaying and editing various information acquired by imaging when using an intraoral scanner (a device used primarily for imaging the oral cavity in dental treatment) to photograph the inside of the oral cavity. The "image diagram" shows the state when the upper jaw selection section is selected. When photographing the upper jaw dentition with an intraoral scanner, the imaging is performed with the upper jaw selection section selected. Also, when the upper jaw selection section is selected, information such as the image of the upper jaw acquired by imaging can be displayed in the captured image / various information display section. The "image diagram with the lower jaw selection section selected" shows the state when the lower jaw selection section is selected. When photographing the lower jaw dentition with an intraoral scanner, the imaging is performed with the lower jaw selection section selected. Also, when the lower jaw selection section is selected, information such as the image of the lower jaw acquired by imaging can be displayed in the captured image / various information display section.
Owner:J MORITA MANUFACTURING CORP

Improved mandibular protraction position reconstruction appliance

PendingCN122031115AOthrodonticsPosterior maxillaMaxilla/Maxillary
The invention discloses an improved mandibular protraction position reconstruction appliance, which relates to the field of oral cavity correction, and comprises an upper jaw anchoring assembly and a lower jaw anchoring assembly which are respectively fixed on an upper jaw dentition and a lower jaw dentition and are matched with each other to realize mandibular protraction guidance, the device comprises an upper jaw crown, a buccal tube body and an adjusting component, the upper jaw crown is an unprepared adhesive crown, and the buccal tube body is fixed on the buccal side of the upper jaw crown; the buccal side tube body is a buccal surface square wire tube with a threaded hole formed in the side wall, a locking piece is arranged in the threaded hole, one end of the adjusting part is a square wire end, and the other end of the adjusting part is an arc-shaped end embedded with the lower jaw anchoring assembly; the mandibular anchoring assembly is matched with mandibular posterior teeth and comprises a mandibular crown and an arm-shaped embedding part; according to the appliance, the accurate control and retention of the protraction amount of the lower jaw are realized through the quantitatively adjustable locking mechanism and the unprepared adhesive crown.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

A three-dimensional scanning-based virtual try-on system for dental prostheses

PendingCN122368341ACloud processingProsthodontics
This invention discloses a virtual fitting system for dental prostheses based on 3D scanning, belonging to the field of digital dental prosthodontics. It includes a data acquisition module, a trajectory processing module, a model construction module, a fitting simulation module, and an anomaly optimization module. Through 3D scanning and automated point cloud processing, it can quickly acquire high-precision 3D models of the maxillary and mandibular dentition, providing reliable data support for prosthodontic design. Optical motion capture fully reproduces the patient's physiological mandibular movements, overcoming the limitations of existing systems that can only perform static simulations, making occlusal detection more clinically accurate. A unified reference coordinate system is established to achieve precise model registration, controlling prosthodontic positioning errors within 0.01mm, significantly improving fit. It can automatically identify premature contacts and occlusal interferences and perform intelligent optimization of the occlusal surface, replacing repeated manual adjustments, effectively shortening the treatment cycle, improving prosthodontic accuracy and wearing comfort, and enhancing the overall treatment experience.
Owner:XUCHANG CENT HOSPITAL

Personalized guide plate and positioning method for maxillofacial nerve three-dimensional navigation

The application provides a personalized guide plate and positioning method for maxillofacial nerve three-dimensional navigation, which comprises a fixed part and a navigation part, the fixed part and the navigation part are designed by patient maxillofacial three-dimensional imaging data and 3D integrally printed; the navigation part is provided with a navigation positioning channel corresponding to the patient maxillofacial nerve. The fixed part and the navigation part are integrally printed based on the patient maxillofacial three-dimensional imaging data, so that the fixed part has high compatibility with the patient's maxillary / dental arch form, and the navigation part also has high compatibility with the patient's face, and the setting accuracy of the navigation positioning channel is also higher, so that when the fixed part is placed between the patient's maxillary dental arch and mandibular dental arch and occluded, compared with the conventional simple facial soft tissue fixation method, the navigation positioning channel on the navigation part of the application is more accurate and reliable.
Owner:SHENZHEN JIAHONG DENTAL MEDICAL CO LTD

Bracket-free invisible tooth socket switching device applicable to obstructive sleep apnea

PendingCN119791870AOthrodonticsSnoring preventionJAW DEFORMITYSurgery
The bracket-free invisible tooth socket switching device comprises an upper jaw invisible tooth socket, a lower jaw invisible tooth socket and at least one group of forward lower jaw devices, the upper jaw invisible tooth socket covers an upper jaw dentition, and the lower jaw invisible tooth socket covers a lower jaw dentition. The anterior mandibular device comprises a maxillary adapter, a mandibular adapter and an anterior mandibular connecting rod, the maxillary adapter is arranged in the molar area of the maxillary invisible tooth socket, the mandibular adapter is arranged in the anterior tooth area of the mandibular invisible tooth socket, and the two ends of the anterior mandibular connecting rod are detachably connected with the maxillary adapter and the mandibular adapter respectively. According to the invention, the bracket-free invisible orthodontic tooth socket and the sleep apnea hypopnea mandibular advancement device are effectively combined for application, so that the invisible orthodontic treatment of malocclusion and the synchronous treatment of sleep apnea hypopnea are guaranteed; the pain point that a conventional bracket-free invisible orthodontic tooth socket and a sleep apnea hypopnea anterior mandibular device need to be detached for use is solved.
Owner:SICHUAN UNIV +1

Method for identifying and aligning teeth in pictures and panoramic pictures of teeth

One aspect of the present application provides a computer-implemented method for identifying and aligning teeth in a tooth picture and a panoramic picture, comprising: acquiring at least one tooth picture of a patient, each of the tooth pictures showing a plurality of teeth of a maxillary and / or mandibular dentition of the patient; identifying teeth in each tooth picture by using a trained first deep neural network to respectively obtain a group of tooth masks and a group of tooth numbers; for each tooth picture, extracting a group of tooth features from the tooth picture by using the corresponding group of tooth masks; using a trained second deep neural network to identify teeth in a panoramic film of the patient to obtain a group of tooth masks and a group of tooth numbers; and updating the tooth number corresponding to the tooth picture by using a trained third deep neural network based on the tooth number and the tooth feature corresponding to the tooth picture and the tooth number and the tooth feature corresponding to the panoramic picture, so that the tooth number of the tooth in the tooth picture is the same as the tooth number of the corresponding tooth in the panoramic picture.
Owner:HANGZHOU ZOHO INFORMATION TECH CO LTD

Dental instrument

On one hand, the utility model provides a dental instrument which comprises a U-shaped base plate, U-shaped grooves capable of containing an upper jaw dentition and a lower jaw dentition are formed in the upper side and the lower side of the U-shaped base plate respectively, elastically-compressible occlusion blocks of a lattice structure are arranged at the positions, corresponding to teeth to be depressed, in the grooves, and under the action of occlusal force of a patient, the teeth to be depressed can be depressed. The occlusion block can be elastically compressed to generate rebound force capable of depressing the tooth to be depressed, the lattice structure can be elastically compressed in the direction of the pressure, and the geometric shape of the lattice structure in the direction perpendicular to the pressure is basically kept unchanged.
Owner:WUXI EA MEDICAL INSTR TECH

Dental instrument

One aspect of this application provides a dental instrument comprising: a first shell-like body, which is an integral shell forming a cavity for receiving a patient's first dentition, the first shell-like body being configured such that a partial surface of the lingual or labial / buccal side of the first tooth is exposed on the first shell-like body, the first dentition being the maxillary or mandibular dentition; a second shell-like body, which is an integral shell forming a cavity for receiving the patient's second dentition, the second dentition being the opposing dentition of the first dentition; a first anchoring attachment protruding from the first or second shell-like body; a second anchoring attachment mounted on the partial surface of the first tooth exposed on the shell-like body; and an elastic member that mechanically engages with the first and second anchoring attachments to elastically deform, thereby applying an orthodontic force to the first tooth through the second anchoring attachment.
Owner:WUXI EA MEDICAL INSTR TECH

Orthodontic teaching demonstration and training model

ActiveCN223108460UEducational modelsLower Jaw ToothMaxillary dentition
The utility model discloses an orthodontic teaching demonstration and training model. The model comprises an upper jaw dentition mold, a lower jaw dentition mold, artificial teeth, an electric heating assembly and a malocclusion reduction template, wherein the upper jaw dentition mold and the lower jaw dentition mold are arch-shaped and are rotationally connected. The model adopts a thermoplastic material to simulate an alveolar bone, and can simulate that the alveolar bone around a tooth root is heated and softened firstly, so that an artificial tooth moves under the action of orthodontic force, and orthodontic treatment is simulated; the dental crown part is detachable, so that the simulation of teeth with different sizes and forms is facilitated, and the updating of the damaged surface of the artificial tooth after the bracket is repeatedly bonded is also facilitated; the model is provided with the electric heating temperature control assembly, so that the softening degree of the thermoplastic material is controllable and adjustable, and different types of sclerotin can be simulated. The model can assist in orthodontic teaching demonstration, is a tool for students to train operation skills and observe operation effects, and can also be used for scenes such as skill matches and scientific research.
Owner:AFFILIATED HUSN HOSPITAL OF FUDAN UNIV

Orally actuated control device

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.
Owner:XPND TECHNOLOGIES SL

Mandibular movement track acquisition mechanism based on inertial sensor

The invention belongs to the technical field of mandibular movement track acquisition, and discloses an inertial sensor-based mandibular movement track acquisition mechanism, which comprises a sensor module and a wearable bracket, and is characterized in that the sensor module adopts two inertial sensors, and calculates relative movement data between the two inertial sensors according to real-time data; the wearable stent comprises an intraoral stent and an extraoral stent, the intraoral stent is made of a dental impression material, is rigidly connected with a mandibular dentition through impression plaster and adapts to an individual oral cavity structure, and the extraoral stent is of a 3D printing structure and is used for fixing an inertial sensor and realizing light weight through topological optimization. The IMU inertial sensor is introduced into the acquisition platform, so that compared with a stereoscopic vision measurement technology, the precision is higher, and the cost is lower; the lower jaw is connected with the measuring bracket by using an impression material, so that the structure is simpler, and the use is more convenient; the method comprises a corresponding trajectory resolving algorithm, so that a user can obtain a real mandibular trajectory of a patient at a lower cost for subsequent diagnosis.
Owner:SHANGHAI UNIV

Nest type three-dimensional all-point jaw frame device

The invention provides a nest type three-dimensional all-point jaw frame device which is used for transferring the intra-oral jaw biting relation of a patient in complete denture repair and effectively simulating the movement track of a tooth tip staggered position interval of the patient. According to the device, three sectional guide compasses are additionally arranged on an upper jaw body base, and when a lower jaw body base is fixedly connected with a lower jaw branch assembly, two lower jaw branches and a cutting guide rod can be inserted into a corresponding condylar guide nest and a corresponding cutting guide nest to do reciprocating motion along a synchronous groove, and the indexing of the compasses is adjusted; and the operation state of all-directional sliding of the lower jaw dentition on the maxillary surface of the maxillary dentition in-position track can be effectively reflected, so that the movement track of the complete denture in a tooth tip staggered position interval is effectively simulated, and accurate and rapid jaw adjustment is realized. The device can also realize mutual switching between a tooth arrangement mode and a jaw adjustment mode by locking and switching the upper jaw body base and the lower jaw body assembly, and has good functionality and practicability.
Owner:张文龙

Manufacturing method of digital anti-snoring device and anti-snoring device

The manufacturing method of the digital snoring device of the present invention includes the following steps: obtaining initial three-dimensional data of the maxillary and mandibular dentition; confirming the midline positions of the upper and lower anterior teeth when the upper and lower anterior teeth are occluded in the centric mandibular position by occluding them on the upper and lower anterior teeth pads of the mandibular pad; obtaining a reference mandibular protrusion amount and a matching occlusal opening amount corresponding to the specifications of the snoring device to be manufactured, with the mandibular protrusion position aligned with the midlines of the upper and lower anterior teeth, and fixing the positional relationship of the upper and lower anterior teeth pads at this time; reconstructing final three-dimensional data of the maxillary and mandibular dentition through oral scanning, with the upper and lower anterior teeth occluded on the mandibular pad with the fixed positional relationship; and manufacturing the snoring device based on the final three-dimensional data. The mandibular pad has a racetrack-like outer contour, with the labial upper and lower groove walls being arc segments rising from the two curved sides of the base material and extending left and right to the 3-3 position of the anterior teeth; the width of the bend allows the lower anterior teeth pad to be protruded relative to the upper anterior teeth pad to the maximum mandibular protrusion position.
Owner:BEIJING ZHONGGUANCUN HOSPITAL

Dental instrument

On one hand, the utility model provides a dental instrument which comprises a first shell-shaped main body which is an integrated shell and forms a cavity for containing a first dentition of a patient, the first shell-shaped main body is configured to be exposed out of the first shell-shaped main body on the partial surface of the tongue side or the lip-cheek side of a first tooth, and the first dentition is an upper jaw dentition or a lower jaw dentition; a second shell-shaped body, which is an integral shell and forms a cavity for accommodating a second dentition of the patient, the second dentition being a jaw-to-jaw dentition of the first dentition; the first anchoring accessory is convexly arranged on the first shell-shaped main body or the second shell-shaped main body; the second anchoring accessory is mounted on the partial surface, exposed out of the shell-shaped main body, of the first tooth; and the elastic piece is mechanically matched with the first anchoring accessory and the second anchoring accessory to enable the first anchoring accessory and the second anchoring accessory to generate elastic deformation, so that the elastic piece applies correction force to the first tooth through the second anchoring accessory.
Owner:WUXI EA MEDICAL INSTR TECH