16612 results about "Dentistry" patented technology

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.

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 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.

The present invention relates generally to implants used in medical procedures such as bone fixation or fusion. More specifically, this application relates to fenestrated implants used in bone fixation or fusion.

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.

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 medical bone implant (1; 11, 14) for stabilizing a bone area is provided, comprising an implant body made of a thermoplastic composite material for fixing in or on a human or animal bone for stabilizing the bone area, and further comprising at least one sensor (2) for measuring one or more parameters of the healing process and / or the state of the implant (1; 11, 14). The at least one sensor (2) is a passive magnetoelastic sensor (2). Furthermore, a method for monitoring the state of the implant (1; 11, 14) is provided, in which the passive magnetoelastic sensor (2) is used for monitoring the state of the implant (1; 11, 14) during the manufacturing process of the implant (1; 11, 14) and / or during storage of the implant (1; 11, 14).

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.

The invention discloses orthodontic tooth socket disinfection equipment which comprises a disinfection box, a drying box arranged at the top of the disinfection box and lifting mechanisms located on the two sides of the drying box, a disinfection inner box is arranged in the disinfection box, a disinfection mechanism is arranged in the disinfection inner box, and cleaning mechanisms are arranged on the two sides of the disinfection inner box. A drying mechanism is arranged in the drying box, and a tooth socket mounting frame is mounted in the lifting mechanism. According to the orthodontic tooth socket disinfection equipment, the lifting mechanism and the tooth socket mounting frame are adopted, so that the orthodontic tooth socket disinfection equipment is relatively convenient to mount and dismount, and a drying mechanism is adopted, so that a disinfectant and cleaning water can be thoroughly removed, and the carrying comfort is improved; by arranging the cavity in the brushing roller and arranging the ultrasonic generator, the disinfection treatment effect is improved, by arranging the cleaning mechanism, the purpose of removing disinfectant is achieved, and the comfort degree of the oral cavity after the tooth socket is installed is improved.

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.

A foam earplug for reception at least partially within the ear canal and including a body portion formed of resilient foam plastic material having a multiple open cell structure and having a size and shape for at least partial reception within the ear canal. A transdermal material having a particular beneficial action, and with an outer layer of the foam earplug infused with the transdermal material so that the benefits of the transdermal material is in transdermal contact with the ear canal. One example is a humectant material and, specifically, a moisturizer / lubricating material, for providing an increase to the lubrication and moisturizing in the ear canal. A second example is where the beneficial action is provided by systemic distribution such as a sleep aid, i.e., Melatonin, so that when the earplugs are worn during sleep, the earplugs will provide a sleep aid to the wearer.

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.

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.

The present disclosure relates to a dental scanning system for acquiring scan data of a physical three-dimensional dental object during a scanning session. The dental scanning system includes a scanning device and a first processing device for generating a 3D model. The dental scanning system may further include one or more second processing devices for rendering and / or displaying the 3D model. The dental scanning system is preferably suitable for continuously acquiring, processing, and transmitting images such that a video is streamed during the scanning session. The disclosure further relates to methods related to e.g. transmitting digital images in real-time during a scanning session to one or more external processing devices, and methods for generating a digital three-dimensional (3D) model of a dental object and displaying said 3D model remotely in real-time.

An orthodontic bracket and archform system that uses friction-free mechanics are disclosed. The archform can have a male fastener that can be retained within an orthodontic bracket. The orthodontic bracket can have varying locking mechanism, such as deflectable tabs, springs, locking pins, and others, that can cooperate with features of the male fastener to prevent sliding between the archform and the bracket.

Devices configured for insertion into an oral cavity of a subject for delivery of an agent for a time period are described. The devices are comprised of at least two polymer shells that nest or stack to create a space or gap therebetween. The agent is placed in the gap and is released in a controlled fashion to deliver agent for the time period. Kits comprised of a device and optionally a refill of the agent are also described.

The invention discloses an edentulous jaw dental implant positioning method combined with depth variation reasoning. The method comprises the following steps: S1, generating optimized medical image data; s2, generating a jaw bone three-dimensional reconstruction model of the edentulous jaw patient; s3, generating anatomical feature data; s4, generating a preliminary implant positioning scheme; s5, generating a local bone reconstruction simulation result; s6, performing dynamic interaction on a local bone reconstruction simulation result and the preliminary implant positioning scheme, optimizing the preliminary implant positioning scheme through a depth variation inference model, and generating an implant optimized positioning scheme including mechanical stability and biomechanical performance evaluation; and S7, based on the implant optimization positioning scheme, generating implant guide plate design data and surgical navigation data in combination with the jaw bone three-dimensional reconstruction model of the patient. According to the method, the final implant positioning point obtains a globally optimal solution in the aspects of long-term stability and biological adaptability.

The present disclosure relates to a dental scanning system for generating a digital three-dimensional representation of a dental object, the system comprising an intraoral scanning device comprising one or more projector units configured to project a pattern on a surface of the dental object; and two or more cameras configured to acquire one or more sets of images; wherein the scanning system further comprises one or more processors configured to determine one or more image features within each set of images; solve a correspondence problem within each set of images such that points in 3D space are determined based on the image features, wherein said points form a solution to the correspondence problem, wherein the correspondence problem is solved for groups of pattern features; and generate a digital three-dimensional representation of the dental object, wherein the solution to the correspondence problem is used to generate the three-dimensional representation.

The invention belongs to the technical field of biomedical engineering, and particularly relates to a preparation method and application of a titanium dental implant surface coating, and the preparation method comprises the following steps: S1, pretreatment of a titanium dental implant matrix: sequentially carrying out grinding and polishing, ultrasonic cleaning and acid etching treatment; s2, preparation of a coating precursor solution: adding nano-hydroxyapatite powder, chitosan, gelatin and titanium dioxide nanoparticles into deionized water, stirring to form a suspension, then adding a silver nitrate solution, and continuously stirring to form the coating precursor solution; s3, coating a coating: coating the surface of the pretreated titanium dental implant matrix with the coating precursor solution by adopting an electrophoretic deposition method; and S4, drying and sintering: drying and sintering the coated titanium dental implant. According to the preparation method of the titanium dental implant surface coating, provided by the invention, the bonding strength between the coating and the titanium dental implant matrix can be improved.

An orthodontic bracket and archform system that uses friction-free mechanics are disclosed. The archform can have a male fastener that can be retained within an orthodontic bracket. The orthodontic bracket can have varying locking mechanism, such as deflectable tabs, springs, locking pins, and others, that can cooperate with features of the male fastener to prevent sliding between the archform and the bracket.

The present disclosure provides a control method of an oral irrigator and an oral irrigator, wherein the oral irrigator includes a normal working mode and a spot spray working mode. The oral irrigator is capable of switching between the normal working mode and the spot spray working mode. In the normal working mode, the oral irrigator continuously sprays water. In the spot spray working mode, the oral irrigator sprays water in a pulsed manner, with a pause duration between two water sprays.

The invention discloses a pronunciation correction data analysis method based on three-dimensional dynamic oral cavity modeling, and relates to the technical field of pronunciation correction, comprising the following steps: performing function fitting on historical reference points to obtain a normal pronunciation function; acquiring a normal pronunciation range based on the normal pronunciation function and the historical reference point; obtaining side views of the tongue part in the three-dimensional oral cavity modeling when the person to be analyzed pronounces and does not pronounce, and respectively marking the side views as a detection pronouncing diagram and a detection non-pronouncing diagram; scaling the detection pronunciation diagram based on the reference size and the detection unpronunciation diagram to obtain a detection correction diagram; judging whether abnormal pronunciation occurs based on the detection correction graph and the normal pronunciation range; the method is used for solving the problem that the accuracy of judging whether the position of the tongue is correct or not during pronunciation is low due to the fact that a method for judging the correct position of the tongue cannot be established through three-dimensional dynamic oral cavity modeling in an existing pronunciation correction technology.

The present invention addresses above-noted objectives by providing a dental component that includes a coronal end, an apical end, and a longitudinal axis extending between the coronal end and the apical end. The dental component also includes an interface for assembly to another dental component, the interface includes at least one indexing section for rotationally locking the dental component to the other dental component and at least one guiding section. The at least one guiding section and the at least one indexing section alternate about the longitudinal axis, wherein the guiding section includes an apically facing or coronally facing guiding surface. Further, a tangent to at least a portion of the guiding surface has a slope towards the next indexing section about the longitudinal axis.

The present disclosure provides improved protective headgear. The protective headgear includes a front shell attached to a back shell, where the front shell includes a crown portion, a forehead portion, opposite side face portions, and a jaw portion, and a shock absorbing member attached to the forehead portion and / or the jaw portion. The crown portion may include a padding insert disposed therein, where the padding includes a plurality of cutouts and is formed of a polymeric foam. The protective headgear may also include a faceguard that extends around the ear holes, which provides greater rigidity and allows for the headgear to absorb impact much more efficiently.

An improved orthopedic broach used to prepare an intramedullary canal of a patient's bone such as, for example, a patient's femur, to receive an orthopedic implant such as, for example, a hip stem implant. The broach has differential teeth or tooth patterns. In one preferred example, the broach includes three different types of teeth including diamond teeth, compaction teeth, and extraction teeth. The different teeth patterns being specifically arranged on the sides of the broach to optimize bone removal and bone compaction for a subsequently implanted hip stem implant. In addition, the different teeth patterns and locations enhancing rotational stability. As such, the broach is configured to compact bone in certain areas while removing bones in other areas, all while maintaining broach rotation.