229 results about "Tooth position" patented technology

The invention provides a tooth surface defect detection method and system for a precision gear. The method comprises the following steps: acquiring an original image sequence covering the whole circumferential direction of a tooth surface of the precision gear; preprocessing the original image sequence to generate a defect candidate region set; inputting a gear image with a fixed size in each region in the defect candidate region set into a deep neural network, and determining a preliminary detection result of the tooth surface of the precision gear; performing joint constraint regression between the predicted coordinates of the defect bounding box in the preliminary detection result and the coordinates of the corresponding true value box, and generating a regression correction bounding box set corresponding to the preliminary detection result; and judging the defect type of the tooth surface of the precision gear according to the spatial position information of the regression correction bounding box set and the corresponding category label. By establishing the index relationship between the image sequence and the gear rotation angle, image acquisition and accurate tooth position matching are realized, and the defect detection precision is effectively improved through cooperation of the deep neural network and the regression correction mechanism.

The invention discloses a data processing method and system for a dental three-dimensional model, and relates to the technical field of dental three-dimensional modeling, and the method comprises the steps: obtaining initial data of oral cavity scanning, recognizing a tooth type in the initial data, and determining a corresponding tooth surface reflection parameter according to the tooth type; generating scanning parameter combinations for different tooth positions according to the tooth surface reflection parameters and the tooth anatomical structure; tooth point cloud data are collected, and a tooth enamel reflective area and a shadow shielding area are identified; performing light reflection removal processing on the enamel light reflection area, performing data completion on the shadow shielding area, and generating corrected tooth point cloud data; and performing registration fusion on the corrected tooth point cloud data to generate a dental three-dimensional model containing a complete dentition. According to the method, the problem of data missing caused by enamel light reflection and adjacent tooth shielding is solved through a differential scanning strategy and regional data processing aiming at specific optical characteristics of teeth, and automatic construction of a high-quality dental three-dimensional model is realized.

The invention provides a method and device for displaying oral data, computing equipment and a program product. The method comprises the steps that first oral cavity data are obtained, the first oral cavity data comprise three-dimensional data of a dental arch, and the dental arch comprises teeth to be repaired; acquiring second oral cavity data through the intraoral scanner, wherein the second oral cavity data comprises scanning data of the to-be-repaired teeth subjected to tooth preparation processing; identifying tooth regions in the first oral data and the second oral data, and identifying a tooth position of the tooth to be repaired based on a difference between the tooth regions in the first oral data and the second oral data; combining the first oral cavity data and the second oral cavity data based on the identified tooth position of the tooth to be repaired to obtain updated three-dimensional data of the dental arch; and displaying the updated three-dimensional data of the dental arch. In this way, an automated workflow is provided for efficiently generating an oral cavity model containing both a complete dental arch form and a precise tooth preparation form without the need to manually mark a tooth preparation region, thereby improving the accuracy and convenience of oral cavity scanning.

The invention relates to the technical field of information, and particularly provides a complete denture arrangement virtual simulation method and system, and the method comprises the steps: obtaining the medical record data of a user; the medical record data comprises edentulous jaw soft and hard tissue data, jaw bone data, alveolar ridge morphological parameters, jaw position relation data and facial feature data; determining an initial dental arch curve based on the medical record data; inputting the initial dental arch curve and preset aesthetic parameters into a preset deep learning model to obtain a plurality of initial tooth arrangement schemes; screening the plurality of initial tooth arrangement schemes according to tooth arrangement constraint conditions to obtain tooth arrangement schemes meeting constraints; the tooth position and angle of each tooth arrangement scheme meeting the constraint are adjusted until the preset occlusion balance condition is met, and the first tooth arrangement scheme is obtained, so that the tooth arrangement scheme efficiency of the complete dentures can be improved on the premise that the quality of the tooth arrangement scheme of the complete dentures is guaranteed.

The present invention relates to the technical field of dental medical treatment, and specifically discloses a method for using a CBCT (Cone Beam Computer Tomography) for automatically positioning a tooth, which comprises the following steps: S01, archiving CT data; S02, calculating AI and generating AI results; S03, entering CT reading by a client; S04, downloading and loading the CT data; S05, opening a function of a tooth lens; S06, selecting a corresponding tooth position in a tooth position list; and S07, selecting a 3D tooth rendering mode. The function of the ‘tooth lens’ is added into traditional CT reading, which is suitable for clinical disease diagnoses such as ‘tooth extraction, root canal therapy, tooth repair’ and the like in oral treatment, and doctors can precisely and quickly position the single tooth through selection for the tooth position, which facilitates more comprehensive analysis.

The invention relates to an image processing method which comprises the following steps: acquiring a visible light image, a near-infrared image and a fluorescence image of the same tooth area to obtain a multi-modal image; inputting the multi-modal image into a segmentation network, embedding a space attention module into a jump connection between an encoder and a decoder of the segmentation network, and outputting a binary mask of a tooth area by the segmentation network; extracting contours of a single tooth from the binary mask, and determining a minimum enclosing rectangle and a geometric center of gravity of each contour; distributing FDI tooth position codes for each contour according to the horizontal coordinates of the geometric center of gravity; according to the minimum enclosing rectangle, cutting out a corresponding single tooth image block from the multi-modal image; inputting the single tooth image block into a multi-branch convolutional neural network to obtain a unified feature vector; and inputting the unified feature vector into a full-connection classification network, and outputting probability values corresponding to different categories by the full-connection classification network. The invention also relates to an image processing device, a medium and a computer program product, and a tooth recognition system.

An embodiment of the present invention provides a method for detecting abnormal tooth areas, which includes: obtaining a dental diagnosis and treatment image including at least one tooth; inputting the dental diagnosis and treatment image into a dental abnormality detection model to obtain an abnormal area mask image corresponding to the suspected abnormal area in the dental diagnosis and treatment image, abnormal area bounding box information, abnormal area classification results, and tooth position classification results to which the abnormal area belongs, wherein the dental abnormality detection model includes: a feature extraction network, a region of interest extraction network, a region feature alignment network for determining regional feature information of the region of interest, and an abnormal area evaluation network for determining abnormal area detection results based on the regional feature information of each region of interest, which can identify the mask image, bounding box, abnormal area classification results, and tooth position information corresponding to the abnormal area, thereby improving the detection accuracy, reliability, and efficiency of abnormal tooth areas.

The invention belongs to the technical field of orthodontics, and particularly relates to a generative adversarial network-driven invisible appliance mechanical optimization system and method, and the system integrates a multi-target pressure field mapping network, a self-adaptive pressure gradient optimizer, a clinical feedback reinforcement learning system, a personalized sensitive area protection mechanism and a time sequence dynamic mechanical optimization engine. The system converts a tooth position movement vector into three-dimensional pressure field distribution, generates a thickness and rigidity distribution function, receives clinical feedback to update model parameters, marks and adjusts a sensitive area pressure upper limit, performs time dimension optimization based on a mechanical attenuation model, and generates staged progressive design parameters; the design efficiency is remarkably improved, the correction scheme design period is shortened from 7 days to 8 hours, the efficiency is improved by 21 times, meanwhile, correction precision and comfort are ensured, and efficient, accurate and personalized invisible correction appliance design is achieved.

The invention discloses a three-stage CBCT (cone beam computed tomography) maxillofacial panoramic segmentation method based on a Kolmogorov-Arnold representation theorem and a U-Net architecture, and the method can learn a nonlinear activation function and multi-scale feature extraction through fusing position prior, and effectively enhances the feature expression capability. According to the method, a three-stage maxillofacial structure panoramic segmentation framework is designed, wherein in the first stage, coarse segmentation and tooth position calibration are carried out in a low-resolution image by utilizing MC-UKAN; in the second stage, on the original image, a target structure is positioned based on a coarse segmentation result, a K-means clustering algorithm is utilized to divide targets into five classes, and a corresponding network is adopted to perform fine segmentation; and in the third stage, the jawbone and the throat are segmented on the original image by using a lightweight network. And finally, through a probability graph fusion mechanism, generating a complete maxillofacial panoramic segmentation result containing tooth position calibration.

The invention provides a tooth pose determination method, a tooth model display method and device and a storage medium. The tooth pose determination method comprises the following steps: acquiring a tooth three-dimensional model of a patient and a face tooth exposure graph of the patient; identifying teeth in the face tooth exposure image of the patient to obtain reference registration points of different types of teeth in the face tooth exposure image; the different types of teeth are tooth types divided by teeth exposed in the face tooth exposure graph of the patient; according to the face three-dimensional model of the patient, determining registration points of different types of teeth of the tooth three-dimensional model in the face three-dimensional model; the face three-dimensional model is constructed through a face tooth exposure image; determining the pose of the tooth three-dimensional model in the face three-dimensional model according to the registration point and the reference registration point; the pose of the tooth three-dimensional model in the face three-dimensional model is used for determining the tooth correction effect of the patient in the first correction stage. According to the method, the correction effect can be simply and effectively displayed.

The present application relates to the technical field of orthodontic monitoring analysis, in particular to a real-time monitoring analysis system for orthodontic treatment, in which a contact state information acquisition module and a displacement response information acquisition module generate a contact state change sequence and a displacement response change sequence respectively, a time sequence coupling relationship construction module constructs a time sequence coupling feature between tooth displacement response and treatment contact state based on the two sequences, an effective treatment effect identification module obtains a first treatment effect interval based on the time sequence coupling feature, an abnormal effect stripping and treatment advancement evaluation module further obtains an abnormal contact segment and a failed effect segment, and obtains a second treatment effect interval and a treatment advancement state, and a monitoring analysis application module determines a corresponding advancement level according to the treatment advancement state and generates a monitoring analysis result, which is beneficial to distinguishing a treatment effect process related to the effective movement of the target tooth position and an interference process from the continuous monitoring data, and makes the monitoring analysis result closer to the actual treatment advancement situation.

The rotary trash remover with the tooth rake bending detection function comprises a rotary trash remover body and a bending detection assembly installed at the top end of the rotary trash remover body, the bending detection assembly comprises a core shaft fixedly installed on a shell, and a plurality of baffles are arranged on the core shaft in a rotatable mode. Gaps are reserved between the adjacent baffles and correspond to the multiple rake teeth in a one-to-one mode, in the operation process of the rotary trash remover, the rake teeth penetrate through the gaps, and the bent rake teeth can touch the corresponding baffles and enable the baffles to rotate. The bending detection device is arranged, the problem of using scenes of the trash remover is considered, electronic equipment is abandoned, a mechanical structure is used, detection effectiveness is guaranteed, interference is avoided, whether tooth rake bending occurs or not can be seen very obviously, meanwhile, the specific bent rake tooth position can be located, use is very convenient, and the improvement cost is very low.

The invention relates to the technical field of oral tooth sockets, in particular to an oral bow adaptive adjusting tooth socket for stopping snore, which comprises an adaptive foundation, the adaptive foundation is used for fixedly adjusting the relative position relation of a connecting mechanism and a tooth socket assembly, and a connecting part is used for adjusting the tooth socket tension between an upper part and a lower part; the tooth socket assembly is composed of an upper tooth socket and a lower tooth socket and used for fixing the position of the mandible at different tooth positions adaptive to the foundation, and latticed lines and a plurality of T-shaped protrusions are distributed on the two sides of the upper tooth socket and the two sides of the lower tooth socket; the connecting mechanism is respectively connected with the tooth socket assembly and the adaptive foundation and is divided into an asymmetrical U-shaped upper part and an asymmetrical U-shaped lower part, trapezoidal latches are arranged on two sides of the U-shaped upper part and the U-shaped lower part, a plurality of adjusting holes are formed in the U-shaped bottom end, convex slide fasteners are arranged on two sides of the adjusting holes, and the tooth socket assembly can be clamped at different tooth positions of the adaptive foundation by the connecting mechanism. The distance between the upper jaw and the lower jaw is adjusted by moving the tooth positions and the connecting hole positions, and the device adapts to different oral cavity bow channel widths.

The present invention relates to a dentifrice dispenser for dispensing dentifrice onto a J- or U-shaped oral piece configured to simultaneously surround and clean a plurality of tooth positions with the dispensed dentifrice and with cleaning elements disposed on or in the oral piece. The dispenser includes a dispenser duct work having an inlet and a collection channel. The collection channel includes a plurality of outlet openings configured for dispensing dentifrice. The duct work is configured for conveying dentifrice from the inlet to the outlet openings. The outlet openings are distributed along a J- or U-shaped curved configuration and open toward and / or along the curved configuration, the curved configuration matching at least a portion of a dental arch, such that the outlet openings can simultaneously dispense dentifrice along the curved configuration at a plurality of positions corresponding to the plurality of outlet openings.

The scalpel comprises a first scalpel handle and a first scalpel head, the first scalpel head is detachably arranged at the front end of the first scalpel handle, a connecting insertion block is arranged at the front end of the first scalpel handle, and a step-shaped clamping groove is formed in the outward end of the connecting insertion block; the tail end of the first tool bit is provided with a connecting groove matched with the stepped clamping groove and the connecting inserting block in appearance, the front end of the first tool bit is provided with an integrally-formed extending part, the extending part is bent outwards, and the width of the end is gradually reduced to form a tip in the outward extending process of the extending part. Blades are arranged on the two side surfaces of the extension part; the extension part which is bent outwards can be suitable for narrow and irregular spaces around wisdom teeth, especially at different tooth position angles, and can be conveniently inserted into a gap between a gingiva and an alveolar bone, so that the connection between the gingiva and a dental crown neck as well as between the gingiva and an alveolar is completely cut and separated, and the end part of the extension part is a sharp end; and accurate puncture and combination of the starting point of the epithelium are facilitated, and damage to healthy tissues is reduced.

This invention relates to the interdisciplinary field of medical image analysis and artificial intelligence, and particularly to a method, device, and medium for detecting non-occlusal abnormalities based on oral images. The method first acquires oral images and determines their abnormality category: a first abnormality (dependent on the characteristics of a single tooth) or a second abnormality (dependent on the spatial relationships between multiple teeth). Based on the category determination, an adaptive differential detection process is executed: if it is a first abnormality, a two-stage process of tooth position detection and single-tooth recognition is used to output a detection result associated with a precise FDI number; if it is a second abnormality, an end-to-end target detection model directly outputs the abnormality type and location region; if it is a mixed category, the two processes are executed in parallel and the results are intelligently integrated. This invention achieves automated, precise, and structured detection of non-occlusal diseases.

The invention relates to an automatic grouping control method for large-specification high-quality special steel bars, and belongs to the technical field of steel rolling finishing. The method comprises the specific steps that S1, the optimal multiple-length length is automatically calculated according to the total sawing amount of batch numbers and the number of single-time sawing branches, and high-temperature bars are sawn; s2, a monitoring signal is set at an inlet of the straightening plate, and stepping discharging and accurate counting are carried out according to a preset stepping tooth position and the discharging number of each tooth position; and S3, after the bar marshalling is formed, the bar marshalling is conveyed through an output roller way, a transition space is arranged between the output roller way and the straightening plate, and when it is monitored that the bar marshalling completely leaves the straightening plate and enters the transition space, the marshalling trolley is controlled to lift up the bar marshalling and transfer the bar marshalling to the output roller way. According to the automatic marshalling device, automation of the whole marshalling process after high-temperature sawing of the large-specification high-quality special steel is achieved, the production efficiency, the yield and the operation safety are effectively improved, and the problems that manual operation is low in efficiency, prone to making mistakes and poor in safety are solved.

The invention provides an orthodontic appliance system, which is used for staged mixed orthodontic teeth and comprises a tooth position correction tooth socket unit, a tooth space closing tooth socket unit and a dentition and occlusion shaping tooth socket unit. The tooth position correction tooth socket unit is used for being arranged on an initial dentition in a sleeving mode to obtain a corrected dentition. The tooth space closed tooth socket unit is used for being fixed on the correction dentition to obtain a tooth space closed dentition. The dentition and occlusion shaping tooth socket unit is used for being arranged on the tooth space closed dentition in a sleeving mode to obtain a shaping dentition. Therefore, the orthodontic appliance system can improve tooth arrangement and tooth spacing closure of a user.

The utility model discloses a device for reducing hardener overflow in maxillofacial hemangioma cavity injection, and the device comprises a first clamping part which comprises a first hand-held part and an annular pressing ring arranged at the end part of the first hand-held part, and a second clamping part which comprises a second hand-held part and an annular pressing ring arranged at the end part of the second hand-held part, the second clamping part comprises a second handheld part and a matched pressing part arranged at the end part of the second handheld part; the first clamping part is connected with the second clamping part through the hinge seat; the second handheld part is provided with a tooth positioning arc-shaped plate for allowing the arc-shaped positioning plate to penetrate through, and one end of the tooth positioning arc-shaped plate is fixedly connected with the first clamping part; the elastic sheet is arranged between the first handheld part and the second handheld part, and one end of the elastic sheet is fixed on the second handheld part through a screw; and the locking plate is used for locking the annular pressing ring and the matched pressing part at a preset opening and closing angle. The medicine is effectively prevented from overflowing in the injection process, so that the treatment effect is improved, and the potential risk of the medicine to other parts of a patient is reduced.

1. The name of the design product: oral cavity detection report generation graphical user interface of electronic equipment. 2. The use of the design product: an electronic device. 3. The design points of the design product: the graphical user interface in the display screen panel. 4. The picture or photo that best shows the design points: front view. 5. The use of the graphical user interface: the interface is used to show the pages of the oral cavity detection report generation platform, the front view is the interface of logging into the oral cavity detection report generation platform and entering after clicking the "patient management" control; interface change state diagram 1 is the interface entered after clicking the control corresponding to the less than symbol in the right side of the front view; when the cursor is moved to the upper row of tooth icons in the two rows of tooth icons between the "tooth position map" label and the "image data" label in interface change state diagram 1, the tenth tooth icon from left to right, the interface shown in interface change state diagram 2 is displayed; interface change state diagram 3 is the interface entered after clicking any tooth icon between the "tooth position map" label and the "image data" label in interface change state diagram 2; interface change state diagram 4 is the interface entered after clicking any rectangular selection box below the "symptom overview" label in interface change state diagram 3; interface change state diagram 5 is the interface entered after clicking the gray block below the "image data" label in interface change state diagram 4. In each interface, the gray block represents a replaceable picture or oral three-dimensional model, and the symptom label is displayed around the oral three-dimensional model represented by the gray block. The front view reference diagram is the reference diagram of the front view, and the interface change state reference diagrams 1-5 are the reference diagrams of the interface change state diagrams 1-5.

The present application provides a kind of dentition correction mouthpiece and its manufacturing method, which can be used for dental correction.The manufacturing method needs to obtain the tooth position configuration map of upper jaw and lower jaw, read and display the tooth position configuration map by dental software, connect the multiple fossae of upper jaw teeth into the arc line of upper occlusal line, connect the multiple cusps of lower jaw teeth into the arc line of lower occlusal line, generate a correction arc line through the upper and lower occlusal lines, then generate the upper jaw correction slot and the lower jaw correction slot corresponding to the cuspid-fossa, and finally generate the upper and lower jaw corresponding parts of the dentition correction mouthpiece to correct the problem of misaligned dentition of dental patients.

In an axial direction (A1) of a rotor (3), a first tooth position (220) is defined as the position of a first tooth set (222) of a stator (2), and a second tooth position (230) is defined as the position of a second tooth set (232). A first magnetization part position is defined as the position of a first magnetization part (32) of the rotor, at which a first magnetic flux flowing from at least one of the first magnetization part and a second magnetization part (33) of the rotor and interlinking with a virtual winding of the first tooth set (222) takes a local maximum value or a local minimum value. A second magnetization part position (330) is defined as the position of the second magnetization part, at which a second magnetic flux flowing from at least one of the first magnetization part and the second magnetization part and interlinking with a virtual winding of the second tooth set takes a local maximum value or a local minimum value. When the first magnetization part position is at the same position as the first tooth position in a state where the position of the rotor in the axial direction is controlled, the second magnetization part position is not at the same position as the second tooth position.

The utility model belongs to the technical field of false tooth appliances, and particularly relates to an occlusion center measuring scale which comprises a base, a connecting plate and a measuring needle, the connecting plate is connected to the base in a sliding mode so that the connecting plate can be adjusted back and forth in a reciprocating mode and adjusted up and down in a reciprocating mode, and positions of the connecting plate are locked through a first locking piece and a second locking piece respectively. The measuring needle is connected to the connecting plate in a sliding mode so that the measuring needle can be adjusted up and down in a reciprocating mode, and the position of the measuring needle can be locked through a third locking piece, the meshing center measuring ruler is simple in structure and convenient to use, the relative position of the measuring needle can be adjusted according to different individuals, the position can be adjusted, and the measuring accuracy is improved. The tooth position can be accurately indicated, and the precision is improved.

Systems and methods for scoring a post-treatment tooth position of a patient's teeth. Raw features of the patient's teeth may be determined from a 3D model of the patient's teeth. Engineered features may be created based on the raw features, which may be applied to a classifier trained to provide a post-treatment tooth position score for the patient's teeth. The post-treatment tooth position score may include a label for each tooth and an associated tooth position score and may be generated as output.

The present disclosure provides methods, devices, and systems for adjusting a tooth position. A system for adjusting a tooth position can include an attachment configured to be attached to a tooth to be moved, a dental appliance including a guide slot configured to receive the attachment and to define an adjustment trajectory of the tooth, and an adjustment band to generate force on the tooth to move the tooth along the adjustment trajectory.

The present disclosure discusses systems and methods for altering the position of teeth in a subject with an aligner. In an embodiment, a method of rotating a tooth includes attaching two engagers to the tooth and creating a force against the tooth, from contact of the aligner with the engagers, to cause rotation of the tooth. Additionally method can also be used for extrusion of a tooth. In an embodiment, a method of extrusion of a tooth includes attaching two engagers to the tooth, on opposing sides of the tooth, and creating a force against the tooth, from contact of the aligner with the engagers, to cause extrusion of the tooth.

The invention relates to diagnostic method software for providing data for producing an occlusive mouthguard for a person, wherein an actual tooth space state and / or tooth position (1) and an actual jaw function (2) are acquired, wherein - an actual body posture (3) is acquired, and - an actual plantar pressure (4) is acquired, and - the actual tooth space state and / or tooth position (1) is compared with a target tooth space state and / or tooth position (11) in order to determine a first deviation (a) between the actual tooth space state (1) and the target tooth space state (11), - the actual jaw function (2) is compared with a target jaw function (12) in order to determine a second deviation (b) between the actual jaw function (2) and the target jaw function (12), - the actual body posture (3) is compared with a target body posture (13) in order to determine a third deviation (c) between the actual body posture (3) and the target body posture (13), - the actual plantar pressure (4) is compared with a target plantar pressure (14) in order to determine a fourth deviation (d) between the actual plantar pressure (4) and the target plantar pressure (14), wherein - the acquired data are used to produce the occlusive mouthguard, in a manner suitable for reducing the deviations (a, b, c, d).

The present invention relates to an image processing method, comprising: acquiring a visible light image, a near-infrared image, and a fluorescence image of the same tooth region to obtain a multimodal image; inputting the multimodal image into a segmentation network, wherein a spatial attention module is embedded in the skip connection between the encoder and decoder of the segmentation network, and the segmentation network outputs a binary mask of the tooth region; extracting the contours of individual teeth from the binary mask, determining the minimum bounding rectangle and geometric center of gravity of each contour; assigning an FDI tooth position code to each contour based on the horizontal coordinate of the geometric center of gravity; cropping the corresponding individual tooth image block from the multimodal image based on the minimum bounding rectangle; inputting the individual tooth image block into a multi-branch convolutional neural network to obtain a unified feature vector; inputting the unified feature vector into a fully connected classification network, which outputs probability values ​​corresponding to different categories. The present invention also relates to image processing devices, media, computer program products, and tooth recognition systems.