17761 results about "Orthodontics" patented technology

Methods and systems are described for 3D modeling and visualization of a patient's facial structure and features for dental treatment planning.

A kit for dental applications includes a tubular body provided with an internal duct which is open to the outside at respective ends of the body; a first end defines a cavity adapted to accommodate a terminal portion of a pin which can be coupled to a maxillary bone tissue.The kit further includes at leasta retention ring, which has a radial cut and can be accommodated in the cavity, which is shaped complementarily; the retention ring s configured to allow the introduction of the terminal portion of the pin into the cavity and to hinder its accidental egress. The kit also includesa release tool, having a shank with a first longitudinal segment, which is terminal and can be inserted with play into the duct, and a second longitudinal segment, which is threaded and can engage a female thread provided along the internal wall of the duct.

A dental mouthpiece is provided that may be attached to a high-suction dental adapter for the purpose of assisting the dental staff during dental procedures through chair-side, hands-free suction, and isolation. Such a mouthpiece may comprise a main body portion, a cheek retractor portion, and a suction connector portion. In an embodiment, the main body portion, cheek retractor portion, and suction connector portion may be molded in one piece, preferably by injection molding. The main body portion has an anterior wall inside the curve and a posterior wall outside the curve, and an at least one connector connecting the anterior wall and the posterior wall. The main body portion has an anterior intervening wall and the posterior intervening wall in between the anterior and posterior walls. The anterior intervening wall and the posterior intervening walls have alternating crests and troughs.

A method of the invention comprises obtaining training dental CT scans, identifying individual teeth and jaw bone in each of these CT scans, and training a deep neural network with training input data obtained from these CT scans and training target data. A further method of the invention comprises obtaining a patient dental CT scan, identifying individual teeth and jaw bone in this CT scan and using the trained deep learning network to determine a desired final position from input data obtained from this CT scan. The (training) input data represents all teeth and the entire alveolar process and identifies the individual teeth and the jaw bone. The determined desired final positions are used to determine a sequence of desired intermediate positions per tooth and the intermediate and final positions and attachment types are used to create three-dimensional representations of teeth and / or aligners.

Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.

A personalized fixation system includes a surgical planning software tool configured to adjust relationships of relevant anatomy of a subject, at least one bone anchor, a plate having a shape that does not conform to a single plane, the plate configured to accept the at least one bone anchor, wherein the shape of the plate is at least partially determined by the surgical planning software tool, and wherein the plate includes at least one node having a hole configured to receive the at least one bone anchor, and a locking element configured to connect the at least one bone anchor to the plate, wherein the plate is manufactured using additive manufacturing.

The invention relates to the technical field of tooth diagnosis, in particular to a periodontal disease accurate quantitative evaluation method based on an IOS image and a CBCT image, and the method comprises the following steps: carrying out the image segmentation of an intraoral scanning IOS image, so as to obtain an IOS segmentation result of each tooth; performing image segmentation on the CBCT image to obtain a CBCT segmentation result of each tooth; preprocessing and registering the IOS segmentation result and the CBCT segmentation result to obtain a data fusion model; obtaining a gingival contour and a tooth long axis according to the data fusion model, obtaining gingival contour points according to the gingival contour, obtaining an alveolar bone contour on the alveolar bone along the direction of the tooth long axis by the gingival contour points, and obtaining a GBD distance; and evaluating the periodontal disease according to the GBD distance. According to the method, the data fusion model is obtained according to the IOS segmentation result and the CBCT result, the gingival contour and the tooth long axis are obtained through the data fusion model, and the GBD distance between the gingival contour and the alveolar bone contour is measured in the direction of the tooth long axis so as to evaluate the health condition of the periodontal disease.

The present disclosure includes examples of an implant system configured for targeted joint resurfacing in which only an area including the osteochondral defect is resected, wherein the area resected occupies an area smaller than an entire joint surface. The implant system can include a monolithic first implant with 3D printed metal and a second implant including a plastic portion overmolded onto a metal portion. The metal portion of the second implant also includes 3D printed metal. The first and / or second implants include solid metal portion(s) and porous metal portion(s). In an example, the first implant can be a femoral implant and the second implant can be a tibial implant. The first and second implants can be used on their own or in tandem.

The invention discloses an oral cavity panoramic image processing system, and the system comprises an image collection module which is used for collecting an initial oral cavity panoramic image containing a plurality of oral cavity diseases; the image processing module is connected with the image acquisition module and is used for performing target detection and instance segmentation labeling on the initial oral panoramic image and expanding a training data set by adopting a data enhancement technology to obtain a target oral panoramic image; a model construction module connected with the image processing module and used for training an MMC-YOLO network model through the target oral panoramic image to obtain a target MMC-YOLO network model; and the analysis and detection module is connected with the model construction module, and is used for performing synchronous detection of tooth concurrent oral diseases, comprehensive analysis of multi-dimensional pathological information and accurate recognition of multi-scale pathological changes through the target MMC-YOLO network model to obtain an analysis result. The system provided by the invention realizes synchronous detection and accurate grading of multiple types of focuses in the oral panoramic image.

The present invention relates generally to methods and systems that can be used to analyse the mouth condition of an individual. The methods and systems can be used in the identification of an oral condition or disease to provide a personalised holistic treatment care plan for the individual. More particularly, the present invention relates to methods and systems that employ artificial intelligence capabilities for generating a treatment plan for an identified oral condition or disease.

A water flosser includes a shell, a pumping assembly and an oral rinse capsule. A water storage chamber and a liquid outlet communicated to the water storage chamber are provided inside the shell, and the liquid outlet is located at a bottom of the water storage chamber. The pumping assembly is arranged in the shell. A pumping port of the pumping assembly extends to a position, close to the liquid outlet, at the bottom of the water storage chamber. The pumping assembly is configured to pump liquid and spray the liquid out along a nozzle. An oral rinse accommodating chamber is provided in the oral rinse capsule. The oral rinse capsule is arranged at a bottom of the shell. The oral rinse accommodating chamber is communicated to the liquid outlet.

The invention relates to the technical field of computer image processing, in particular to an oral cavity three-dimensional model construction and tooth occlusion feature analysis method. The method comprises the following steps: carrying out imaging scanning processing and three-dimensional model construction on an oral cavity structure of a patient to generate an oral cavity internal structure three-dimensional space model; performing tooth segmentation and tooth feature analysis on the oral cavity internal structure three-dimensional space model, and performing inter-tooth contact evaluation analysis to obtain oral cavity inter-tooth arrangement contact condition data; performing tooth occlusal point positioning analysis and tooth occlusal surface connection division on the oral cavity internal structure three-dimensional space model to generate an oral cavity tooth occlusal connection surface; and performing tooth occlusion characteristic analysis on the oral tooth occlusion connection surface to obtain a tooth occlusion surface parallelism and a tooth occlusion surface contour shape, and performing tooth occlusion adjustment processing to generate an oral tooth occlusion surface adjustment scheme. According to the invention, rapid reconstruction of an oral cavity structure and accurate analysis of tooth occlusion characteristics can be realized.

A method is provided for optimizing a dental treatment plan. In some cases, the method can include receiving patient data comprising one or more progress indicators associated with an dental treatment plan, processing the patient data to determine a level of progression associated with the dental treatment plan based on the one or more progress indicators, modifying the dental treatment plan in response to the determined level of progression, and generating a notification of the modified dental treatment plan. In some cases, modifying the dental treatment plan in response to the determined level of progression includes advancing a patient associated with the patient data to a subsequent stage of the dental treatment plan or retaining the patient within a current stage of the dental treatment plan.

The invention relates to a multi-agent oral hospital diagnosis and treatment model establishment method and device, and the method comprises the steps: carrying out the fine adjustment of an existing large-scale language model through employing an efficient method, and enabling the model to better meet the specific demands of the medical field. And on the basis of fine tuning, a feedback mechanism based on artificial intelligence is further utilized, and the expression of the model is optimized through reinforcement learning, so that the system is more intelligent and high in adaptability when simulating doctor-patient interaction. Through the multi-agent framework, a complex medical interaction process among a patient, an examiner, a medical student and a main doctor can be simulated, so that a training platform close to a real clinical environment is provided. Wide experimental results and comprehensive evaluation prove that the multi-agent oral hospital technology based on role playing can well improve interactivity and practicability of medical education, and meanwhile it is ensured that medical students can learn and practice clinical thinking and decision skills in a safe environment. The invention also relates to a device and a memory.

A water flosser includes a shell and an oral rinse capsule. A capsule accommodating chamber is arranged at a bottom of the shell. A clamping assembly is arranged in the shell. A clamping end of the clamping assembly is threaded out of an inner wall of the capsule accommodating chamber of the shell. The oral rinse capsule is detachably inserted into the capsule accommodating chamber. A clamping slot is provided on a surface of the oral rinse capsule. The clamping end of the clamping assembly is detachably clamped into the clamping slot. By the arrangement of the above structure, the oral rinse capsule is inserted into the capsule accommodating chamber, and the clamping end of the clamping assembly is clamped into the clamping slot, which can effectively fix the oral rinse capsule and make the structure of the product more stable.

The invention relates to the technical field of denture manufacturing, and discloses a high-precision digital complete denture 3D printing method which comprises the following steps: obtaining an initial denture model of a target object; acquiring occlusal point adjustment data; acquiring actual adjustment data; adjusting the initial false tooth model based on the actual adjustment data, and converting the adjusted initial false tooth model into a 3D printing instruction for 3D printing; according to the method, stress distribution during occlusion is simulated through finite element analysis, a three-dimensional occlusion thermodynamic diagram is obtained and input into a constructed CNN network model, occlusion point adjustment data are obtained, adjustment data of effective occlusion contact points are mapped into a solid model, and actual adjustment data are obtained; three-dimensional data of the oral cavity of a patient is obtained through a scanner, digital analysis is conducted in combination with a neural network model, the denture manufacturing precision is improved, manufacturing is conducted in a 3D printing mode, the manufacturing efficiency is high, the patient feels comfortable when wearing the denture and occludes the denture well, and the problem of diet difficulty of the implant patient is solved in time.

The invention discloses an automatic identification method, device and equipment for mandibular wisdom teeth, a medium and a product, and relates to the field of image processing.The method comprises the steps that an oral maxillofacial cone beam computed tomography image is obtained; segmenting and positioning the mandibular wisdom tooth region-of-interest in the oral and maxillofacial cone beam computed tomography image by adopting a pre-trained first deep learning model to obtain a mandibular wisdom tooth segmentation mask image, and cutting a mandibular wisdom tooth region-of-interest image from the oral and maxillofacial cone beam computed tomography image; adopting a pre-trained second deep learning model to perform three-dimensional segmentation on the mandibular wisdom tooth region-of-interest image to obtain a three-dimensional segmentation mask image; and according to the mandibular wisdom tooth region-of-interest image and the three-dimensional segmentation mask image, determining a mandibular wisdom tooth recognition result by adopting a pre-trained third deep learning model. The identification accuracy and the identification efficiency of the wisdom teeth of the lower jaw are improved.

The invention relates to a cleaning equipment brush head, cleaning equipment and a cleaning system, and the cleaning equipment brush head comprises a main body part which comprises an air suction opening; the rolling brush is arranged on the main body part and can rotate relative to the main body part; the comb teeth are installed on the main body part, each comb tooth comprises a plurality of tooth parts arranged in the first direction, and a first acute angle is formed between the extending direction of at least part of the tooth parts and the first direction; wherein the first direction is the axis direction of the rolling brush. The brush head of the cleaning equipment has better anti-winding capability.

An oral irrigator is disclosed. The oral irrigator may include a housing defining a housing cavity and a chassis received within the housing cavity. A plurality of components received within the housing cavity are mounted to the chassis and inserted into the housing cavity via the chassis.

The invention relates to the technical field of oral implantation monitoring, and discloses a monitoring method for analyzing oral implantation health based on using images. The method comprises the following steps: acquiring an optical image data sequence of an oral implanting region by adopting optical scanning equipment, constructing a three-dimensional oral tissue model containing gingival contour features and an implant position, and identifying actual position distribution information of an implant in gingival tissue; and extracting an implant health index set comprising an implant marginal definition value, a surrounding gingival red and swollen area proportion and a gingival atrophy degree value. When any index exceeds a preset health threshold interval, abnormal early warning information is generated, scanning parameters are dynamically adjusted, and images are collected again for iterative monitoring. According to the method, dynamic and accurate monitoring of oral implant health can be realized, health abnormity of the implant can be found in time, and support is provided for long-term health maintenance of the implant.

The invention relates to the technical field of digital data processing, in particular to a finite element analysis method and system for a full-mouth edentulous movable denture, and the method comprises the steps: obtaining a CT image of the oral cavity of a patient, constructing a three-dimensional finite element model through a finite element analysis method, and carrying out the grid division of the three-dimensional finite element model, obtaining a unit size and a maximum deviation coefficient of each grid, and a pressure trend vector of each grid in each dynamic occlusion process; determining the shape complex weight of each grid; determining a pressure difference degree, a stress sensitivity degree, a stress dispersion degree and a structure disorder characteristic value of each grid; obtaining each defect grid; calculating the number of expanded neighborhood layers of each defect grid; and refining the grids, and optimizing the false tooth according to a simulation result of occlusion simulation of the three-dimensional finite element model. According to the method, local stress changes can be accurately captured, the accuracy of finite element analysis on false tooth stress analysis is improved, and the pain feeling of a patient during occlusion is reduced.

A dental treatment system can include a console, a tooth coupler, and an interface member that provides at least one of fluidic, electrical, mechanical, and data communication between the tooth coupler and the console. The tooth coupler (which may comprise a handpiece or a treatment cap) can act as a working end of the system to administer a suitable treatment procedure, such as a cleaning procedure, an obturation procedure, a restoration procedure, etc. The tooth coupler can removably engage the interface member such that the clinician can easily engage and disengage the tooth coupler and interface member.

The invention provides a method for measuring shoulder joint glenoid bone defects in a three-dimensional CT image, the method is divided into five modules, namely a segmentation module, a registration module, a positioning module, a defect size measurement module and a defect proportion measurement module, and the method can realize arbitrary defect measurement containing shoulder joint glenoid CT data under a relatively high resolution ratio. The method does not depend on manual operation, and automatic shoulder joint glenoid bone defect measurement is achieved. According to the method provided by the invention, the proportion of the glenoid bone defect of the shoulder joint and the size of the defect bone block can be quantitatively calculated in a standard, automatic and relatively accurate manner, and the preoperative diagnosis efficiency of a doctor is greatly improved. The invention further provides a system for measuring the glenoid bone defect of the shoulder joint in the three-dimensional CT image. According to the system, the indexes of the shoulder joint glenoid bone defect can be automatically obtained from end to end, that is, the input is shoulder joint CT data of the uninjured side and the affected side of a patient, and the output is the indexes of the shoulder joint glenoid bone defect.

Methods for designing and fabricating palatal expanders by modeling expansion of the palatal region based on material properties for one or more regions of a maxillary jaw determined from a cone-beam computed tomography (CBCT) scan of the maxillary jaw and / or internal topological information for the maxillary jaw determined from the CBCT scan. Also described herein are series of palatal expanders having a sequence and configured to be sequentially worn by a patient to expand the patient's palate in which the left maxillary portion and the right maxillary portion are progressively separated relative to each other, and the thickness of the palatal region changes.

The invention relates to the technical field of computers, discloses a tooth three-dimensional precision correction method and system based on multi-source oral data fusion, and aims to solve the problems of low registration precision, serious geometric distortion and lack of function oriented optimization of multi-modal oral data in the prior art. The method comprises the following steps: synchronously obtaining intraoral scanning, CBCT and face three-dimensional point cloud data; carrying out format conversion, denoising and grid simplification preprocessing; tooth surface morphology, root canal anatomy and soft tissue contour features are extracted and coded into uniform feature tensors; and multi-modal data space alignment is realized through staged rigid and non-rigid registration. By means of the scheme, the multi-source data fusion precision and the tooth form restoration accuracy are remarkably improved, full-process automatic efficient processing is achieved, and the clinical real-time performance and high-precision diagnosis and treatment requirements are met.

The invention provides an oral cavity scanning method, computing equipment and a computer program product. The method comprises the steps that oral cavity scanning data are obtained by scanning an oral cavity provided with a scanning rod, and the scanning rod is fixed to an implanted component; identifying scanning data of a scanning rod in the oral cavity scanning data; standard model data of a three-dimensional entity capable of being installed on the implanted part is converted into a coordinate system where oral cavity scanning data is located; and removing the scanning data of the scanning rod from the oral cavity scanning data, and splicing the converted standard model data of the three-dimensional entity to the oral cavity scanning data after the scanning data of the scanning rod is removed to obtain overall data of the oral cavity. In this way, scanning rod data can be replaced with data of different three-dimensional entities (such as an abutment or an expanded scanning rod) in the oral cavity scanning stage and spliced to oral cavity scanning data, the workflow is simplified, and expandability of oral cavity scanning is achieved.

The invention relates to the technical field of oral health monitoring, and discloses an oral detection method based on an intelligent tooth socket. The method comprises the following steps: acquiring an original oral cavity pressure time sequence and frequency domain characteristics through an intelligent tooth socket, determining an optimized decomposition parameter, and performing multi-scale decomposition on an original signal to generate a multi-scale oral cavity signal component; nonlinear dynamic features are extracted, a component complexity index is obtained, and key signal components related to oral health are screened out; generating a personalized physiological response frequency in combination with the user oral cavity baseline features, the real-time occlusion state and the component complexity index; reconstructing an oral cavity physiological feature sequence based on the key signal component and the personalized physiological response frequency, and separating a low-frequency component and a high-frequency component through modal decomposition; identifying oral cavity abnormity categories according to the two components, establishing a mapping relation with a diagnosis result, and generating an oral cavity health detection instruction. According to the method, convenient and comprehensive oral cavity detection can be realized, the detection adaptability and precision are improved, and support is provided for oral cavity health management.

The invention relates to the technical field of oral X-ray image recognition, in particular to an intelligent oral X-ray film lesion area recognition system based on artificial intelligence. The method comprises the following steps: obtaining gray level change characteristics of each tooth region in an oral X-ray image according to gray level and gradient distribution in each tooth region; obtaining an optimal factor according to the gray change feature similarity between different regions, and further selecting a standard tooth region; obtaining a ray absorption coefficient according to the gray difference of different areas and the difference of the optimal factors; obtaining caries area possibility of the pixel points according to the positions of the pixel points in the tooth area; and the caries area is identified. According to the method, the caries area in the oral X-ray image is accurately segmented, and finally accurate treatment can be carried out on a patient.

The invention discloses a dental plaque quantitative analysis method, a dental plaque quantitative analysis device and computer equipment. The method comprises the following steps: acquiring an initial dental surface image of at least one specified orientation of a to-be-detected tooth; normalizing each initial dental surface image into the matched template image to obtain a normalized dental surface image; performing image segmentation on each regular tooth surface image to obtain a tooth image area and a dental plaque image area in the regular tooth surface image; and calculating the dental plaque proportion of the to-be-detected teeth according to the sizes of the tooth image region and the dental plaque image region of each regular tooth surface image. Accurate quantitative evaluation of the dental plaque on the to-be-detected teeth is achieved, the method has the advantages of being easy and convenient to operate, accurate in result and the like, and the quantitative evaluation result has comparability and can serve as a credible basis for dynamic monitoring of oral health.

An apparatus for treating a tooth can include a fluid platform comprising a wall and a chamber at least partially defined by the wall. The fluid platform can be disposed against a tooth to retain fluid in the chamber and provide fluid communication between a treatment region of the tooth and the chamber by way of an access port. The chamber can have a central axis. A liquid supply port can be disposed to direct a liquid stream across the chamber along a stream axis non-parallel to the central axis. A suction port can be exposed to the chamber. The chamber can have a maximum lateral dimension in a plane extending substantially transverse to the central axis, the plane delimited by the wall along a boundary. A projection of the suction port onto the plane can be closer to the boundary than to the central axis of the chamber.