158 results about "Tooth position" patented technology

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 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.

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 invention relates to the technical field of dental treatment, in particular to an adjustable dental transfer rod which comprises a transfer rod body, a first adjusting assembly movably arranged in the transfer rod body and a second adjusting assembly movably arranged at one end of the first adjusting assembly. The transfer rod is used for positioning impression and mold taking in dental treatment, the transfer rod is stably connected with the healing abutment through the first adjusting assembly, and the second adjusting assembly is used for impression or mold taking. The adjustable dental transfer rod has the beneficial effects that through the structural design that the first adjusting assembly and the second adjusting assembly cooperate with each other, flexible adjustment of the second adjusting assembly in the direction relative to the first adjusting assembly is achieved, and the treatment requirements of different tooth positions and angles are met; and through the design of a locking structure, the stability and reliability of the adjusted angle are ensured, and the situation that the treatment effect is affected due to angle change in the operation process is effectively avoided.

This application discloses a cutting system and method for orthodontic appliances. The cutting method includes: obtaining a tooth model, wherein the tooth model is based on a tooth model obtained before, during, or after orthodontic treatment; obtaining thickness information of the orthodontic appliance in the region where at least one tooth is located based on the tooth model; segmenting the orthodontic appliance based on the thickness information to obtain multiple segment intervals; determining a first energy parameter based on the segment intervals, wherein the first energy parameter is used to characterize the relationship between the energy of the laser and the thickness to be cut; and cutting the area to be cut of the orthodontic appliance corresponding to the segment intervals based on the first energy parameter. This cutting method allows the laser energy to be adapted to the cutting requirements of different cutting thicknesses, which is beneficial to achieving precise energy control during the orthodontic appliance cutting process. Therefore, this cutting method has better dynamic performance and a higher cutting adaptation rate for orthodontic appliances with complex curved surfaces.

A wristband barrel lock includes a tubular housing extending between a first longitudinal end and a second longitudinal end, the tubular housing defining a passageway extending from the first longitudinal end to the second longitudinal end, a plurality of teeth positioned within the passageway, each tooth of the plurality of teeth extending from a base coupled to the tubular housing to a tip spaced apart from the tubular housing within the passageway, and a breakaway feature formed in the tubular housing and / or the plurality of teeth that decreases a force required to fracture the wristband barrel lock.

A seal assembly includes an annular seal body positionable about a first member having a centerline, an axially extending seal lip positionable against a radial surface of a second member, two circumferential ends, and an outer circumferential surface. The outer circumferential surface extends outwardly a plurality of teeth circumferentially spaced about the centerline. A first connecting member has teeth positioned between and connected to the teeth of the seal body to form a first attachment interface proximate the first end of the seal body. A second connecting member has teeth positioned between and connected to the teeth of the seal body to form a second attachment interface proximate the second end of the seal body. The first and second connecting members are connected to join the ends of the seal body to retain the seal assembly about the first member.

The utility model relates to the technical field of oral medicine, in particular to a comprehensive tooth adjusting and grinding training model which comprises an upper jaw and a lower jaw, the upper jaw comprises an upper tooth socket, upper teeth are installed on the upper tooth socket, the lower jaw comprises a lower tooth socket, and lower teeth are installed on the lower tooth socket. Tooth socket pits which are consistent with the tooth roots of the corresponding teeth in shape and size are formed in the corresponding tooth positions of the upper tooth socket and the lower tooth socket, and a through hole through which the upper tooth and the lower tooth can be conveniently detached is formed in the bottom of each tooth socket pit.

The present application relates to an automatic tooth arrangement method and system for generating a personalized dental arch based on an ideal dental arch, fitting polynomial coefficients according to a dental arch form given by medicine as template data, generating an ideal dental arch curve in a two-dimensional space according to the template data, projecting the ideal dental arch curve to a three-dimensional space, generating initial tooth hanging points on the dental arch line according to tooth width and FACC center point position, taking tooth No. 6 as a reference tooth position if there is no designated fitting tooth position, taking the designated fitting tooth position as a reference if there is a designated fitting tooth position, and generating a personalized tooth arrangement dental arch curve. The present application generates a tooth arrangement dental arch that fits the teeth according to the ideal dental arch constructed and different tooth forms, thereby realizing automatic tooth arrangement. The tooth arrangement method proposed in the present application can automatically generate a reasonable and beautiful tooth arrangement dental arch, greatly reducing the time length of manual tooth arrangement.

The application provides a denture design method, comprising the following steps: obtaining two-dimensional oral panoramic film and three-dimensional intraoral scanning data of a patient; calculating the radiological bone loss proportion of each tooth, and obtaining the image reliability component of each tooth position in the panoramic film based on the segmentation result; extracting the three-dimensional key point and neck edge contour point set of each tooth; calculating the registration reliability component of each tooth position; fusing the image reliability component and the registration reliability component of each tooth position in the panoramic film to generate an image and registration reliability index; and taking the radiological bone loss proportion and the reliability index of each tooth position as a design constraint to perform automatic design of a removable partial denture. The purpose of improving the clinical scientificity, safety and interpretability of the design scheme is achieved.

The invention provides an oral cavity scanning data occlusal contact point analysis method adopting deep learning, which comprises the following steps: realizing point cloud data preprocessing through adaptive outlier filtering and rigid registration, modeling a deformation sensitive area in combination with tooth surface curvature and normal vector change, and extracting geometric and deformation semantic features by using a lightweight deep learning structure; a feature decoupling and attention gating mechanism is adopted to enhance the feature resolution, and then a prior motion topological graph and graph convolution propagation are constructed to improve the time sequence and physiological consistency of candidate contact points; three-dimensional coordinates, intensity probability and tooth position labels of the contact points are output through a multi-scale regression model, a multi-threshold fusion mechanism is used for assisting result verification, the precision and clinical applicability of occlusal contact point recognition are improved, and the method has the advantages of high noise suppression, high structural resolution and dynamic adjustment capability.

The application provides a digital oral model mark point recognition method and device and electronic equipment, and the method comprises the following steps: step 1, inputting dental arch model image data, segmenting the dental crown of the dental arch model, and recognizing the tooth position number of the dental crown, wherein the dental arch model comprises a gum and dental crowns of different tooth positions. Step 2, based on automatic recognition of the dental crown mark point of a single dental crown, for each segmented dental crown, the multi-view graph network is used to automatically recognize the dental model mark point, and the mark point on each dental crown is obtained. The method of the application does not predict the mark point on the three-dimensional point cloud, but maps the three-dimensional data into two-dimensional projection image data, and calculates by using a two-dimensional network, so that the calculation amount and the dependence on the computing power can be reduced compared with a three-dimensional network.