2750results about "Othrodontics" patented technology

Systems and techniques for training one or more neural networks to automatically identify one or more aspects of a digital representation used in digital oral care are disclosed including identifying one or more aspects of the first digital representation for which additional processing is to be performed, based on a list of 3D elements, generating a predicted representation by labeling those one or more aspects for which additional processing is to be performed, generating an accuracy score that specifies a difference between the one or more predicted representations and one or more respective reference representations that identify the one or more aspects of the first digital representation for which additional processing is to be performed, and modifying at least one aspect of the neural network based on the accuracy score.

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 discloses a failure restoration retreatment decision-making method based on dynamic occlusion analysis, and the method comprises the steps: constructing a four-dimensional virtual biomechanical model which comprises a patient anatomical structure and a dynamic function through multi-modal data fusion, and enabling the model to be embedded into a real three-dimensional mandibular movement track of a patient to simulate functional movement, thereby breaking through a static analysis blind area, and achieving the real three-dimensional mandibular movement of the patient. The missed diagnosis rate of dynamic interference is reduced; based on quantitative indexes and thresholds such as occlusal contact displacement, occlusal contact distribution symmetry and adjustment quantity of the maximum tooth tip staggering position and the median relation position, experience judgment of doctors is replaced, objectivity, repeatability and accuracy of failure repair and retreatment decision are improved, and excessive or insufficient adjustment is avoided; the treatment effect rehearsal is realized through virtual presetting, the irreversible operation risk is avoided, and the number of times of re-visit and the trial and error cost of a patient are reduced; and meanwhile, the four-dimensional virtual model can be connected with transition and design and manufacturing of a final restoration, so that the accuracy, safety and efficiency of retreatment of a failed restoration are improved.

The present disclosure relates to a three-dimensional-model generation method and apparatus, and a device and a storage medium. The method comprises: acquiring three-dimensional point cloud data of a target object; acquiring reconstruction parameters for point cloud feature regions in the three-dimensional point cloud data; and performing multi-resolution grid reconstruction on the three-dimensional point cloud data on the basis of the reconstruction parameters for the point cloud feature regions, so as to generate a multi-resolution three-dimensional model of the target object.

Various implementations of removable dental appliances, including multi-unit veneers to improve the aesthetics and function of a smile of a dental customer, related systems, and computer programs and methods for the design and manufacturing of removable dental appliances are disclosed. For example, surface tension and capillary action between the patient's or customer's teeth, saliva and surfaces of the removable dental appliance are utilized to substantially hold the appliance in place, once inserted. For example, a clip-on fit involving exclusively vestibular-facing undercuts between the patient's or customer's teeth are utilized to substantially hold the appliance in place, once inserted. The appliance is manufactured by additive or subtractive manufacturing technologies and may gain stability from a resin-based coating.

The invention belongs to the technical field of application of an artificial intelligence technology to medical rehabilitation instruments, and relates to a method for designing an orthosis based on an AI artificial intelligence technology, and the method comprises the steps: S1, data collection and preprocessing: converting patient data into structured data; s2, feature extraction: extracting geometric and biomechanical features related to orthosis design, and constructing a feature set; s3, processing the features by using a deep learning model, and predicting personalized parameters; s4, designing and optimizing an orthopedic module, and optimizing pressure distribution; s5, a three-dimensional orthopedic CAD system is developed and deployed, and patient information and orthopedic device design are managed; and S6, evaluation and optimization: fusing clinical data, and optimizing the system according to an evaluation result. According to the method, the AI technology is utilized to improve the design efficiency and the adaptation accuracy, the personalized requirements are met, the rehabilitation effect is optimized, digital management of data and iteration of an AI model are achieved, a treatment basis is provided for rehabilitation medical employees such as a brace teacher and a rehabilitation therapist, and the clinical effectiveness of a rehabilitation treatment scheme is improved.

Various implementations of removable dental appliances, including multi-unit veneers to improve the aesthetics and function of a smile of a dental customer, related systems, and computer programs and methods for the design and manufacturing of removable dental appliances are disclosed. For example, surface tension and capillary action between the patient's or customer's teeth, saliva and surfaces of the removable dental appliance are utilized to substantially hold the appliance in place, once inserted. For example, a clip-on fit involving exclusively vestibular-facing undercuts between the patient's or customer's teeth are utilized to substantially hold the appliance in place, once inserted. The appliance is manufactured by additive or subtractive manufacturing technologies and may gain stability from a resin-based coating.

The invention relates to the technical field of orthodontic abnormality diagnosis, in particular to an orthodontic abnormality diagnosis intelligent prompt system based on deep learning, which comprises a multi-modal data acquisition module used for transmitting a patient ID (Identity) through an API (Application Program Interface), automatically importing image data, image data, facial three-dimensional data and dentition three-dimensional data of a patient, and transmitting the image data to the multi-modal data acquisition module; meanwhile, medical record text information is obtained in real time through an EMR interface; according to the method, collected data are diversified in form and comprehensive in content, anatomical structure information is provided for patient photos, skull side position X-rays, CBCT, 3dMD, IOS, medical record reports, image data, image data, three-dimensional data and the like, symptom description and medical history are supplemented through text data, multi-person data fusion is achieved, potential association which is difficult to discover through single-mode data can be captured, facial features of a patient are comprehensively evaluated, and the method is suitable for clinical application. The comprehensiveness and the accuracy of diagnosis are improved, more abundant diagnosis basis can be provided for complex mismatching deformity and multi-modal data fusion, and missed diagnosis and misdiagnosis are reduced.

The invention belongs to the technical field of stomatology, and particularly relates to an upper jaw fixing expansion appliance which comprises a spiral expansion device, a plastic base, a connecting rod, a retention device and a dental retraction traction hook. The spiral expander is positioned in the center of the appliance, and the plastic base plate is two parts which are separated from each other in the center and connected with the spiral expander and covers the hard palate part of the upper jaw. The retention device is composed of a milk molar or premolar casting continuous belt ring and a first molar independent casting belt ring. And the left and right dental retraction traction hooks are positioned in the plastic base and are used for retracting and pressing the first molar of the upper jaw of buccal inclination after the expansion of the arch. The appliance disclosed by the invention is wide in clinical application range, and is suitable for light and moderate teenager patients with lateral maxillary development insufficiency and maxillary posterior tooth buccal inclination compensation. According to the invention, a good bony expansion effect can be realized for patients in a replacement dentition stage or a permanent dentition early stage and patients in rapid maxillary expansion, and excessive buccal inclination and movement of teeth are reduced.

Methods and systems for predicting manufacturing outcomes are provided. In some embodiments, a method includes receiving at least one image representing a target geometry of an object to be fabricated using an additive manufacturing process. The method can include generating at least one modified image by inputting the at least one image into a machine learning algorithm. The machine learning algorithm can be trained to determine one or more modifications to the at least one image, where the one or modifications are configured to compensate for predicted deviations from the target geometry of the object when the object is fabricated via the additive manufacturing process based on the at least one image. The method can further include generating instructions for fabricating the object using the additive manufacturing process, based on the at least one modified image.

The invention discloses a three-dimensional clinical research method of deciduous tooth anchorage on maxilla hypoplasia under the guidance of an HPC line. According to the invention, the deciduous tooth anchorage technology guided by the HPC line breaks through the limitation of the traditional tooth support type and bone support type correction, and creates a third anchorage selection mode for osteomalocclusion. By accurately positioning the central axis of the deciduous tooth crown as a supporting point, the technology not only retains the effectiveness of the traditional method on the transverse expansion of the maxilla, but also remarkably reduces the side effects of mesial inclination, vertical lifting and the like of the permanent tooth, and realizes the dual purposes of bony reconstruction and dentition stabilization. The innovativeness is that the physiological characteristics of deciduous teeth are combined with the biomechanical principle, the technical scheme is provided for the first time in China, the blank of correction of complex malocclusion in mixed dentition is filled, and a safer and more efficient treatment path is provided for clinic.

The embodiment of the invention discloses a method for measuring a buccal-lingual torque value of maxillary molar based on improved ResNET. The method comprises the following steps: acquiring and preprocessing three-dimensional images of teeth and alveolar bones, and performing three-dimensional reconstruction on the preprocessed images; based on the coupling relationship between the dental crown and the tooth root, positioning a first tooth long axis; positioning a second tooth long axis based on the coupling relationship between the tooth and the alveolar bone; calculating an included angle between the first tooth long axis and the second tooth long axis and generating a new long axis; calculating and verifying a buccal-lingual torque value of the maxillary molar; through the automatic process, the accurate measurement and calculation of the upper jaw first molar torque value are realized, and the effectiveness and accuracy are improved.

Systems and methods are described for generating accurate predictions of the post-treatment anatomy of a patient. The methods involve receiving one or more oral care arguments that describe the desired output from a trained machine learning model. One or more noisy representations of the patient's face and / or post-treatment dentition can be used to train a denoising diffusion probabilistic model. In deployment, an initially noisy image can be denoised, with conditioning on latent representations of the patient's pre-treatment photo and the post- restoration dentition. The methods may generate a digital representation of the patient's post-treatment appearance. These systems and methods enable improved predictive accuracy and enable treatment planning for orthodontics and dental restorative treatments.

The invention relates to the technical field of oral medical instruments, and particularly provides a customized joint jaw position appliance and a manufacturing method thereof.The customized joint jaw position appliance comprises an appliance body, the appliance body comprises an upper jaw tooth occlusion sleeve and a lower jaw tooth occlusion sleeve, and a first occlusal surface of the upper jaw tooth occlusion sleeve is effectively occluded with a second occlusal surface of the lower jaw tooth occlusion sleeve; the guide inclined surface is arranged on the inner side of the anterior tooth area of the appliance body; the upper jaw blocking body and the lower jaw blocking body are respectively arranged on an occlusal surface, a cheek side surface or a lingual side surface of a premolar region on two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve; the upper jaw blocking table and the lower jaw blocking table are respectively arranged on the occlusal surface, the cheek side surface or the tongue side surface of the molar areas on the two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve, and are integrally connected with the appliance body to form a first occlusal surface and a second occlusal surface. According to the customized joint jaw position appliance, the disc-condylar relationship can be more accurately recovered according to the displacement condition of the joint disc of a patient through double-jaw coordination and multi-region blocking design, the treatment period is shortened, and the prognosis stability is improved by matching with a chewing function.

A method includes obtaining video data of a dental patient. The method further includes obtaining an indication of selection criteria in association with the video data. The selection criteria includes conditions related to a target dental treatment of the dental patient. The method further includes performing an analysis procedure on the video data. Performing the analysis procedure includes determining a first score for each frame of the video data based on the selection criteria. Performing the analysis procedure further includes determining that a frame satisfies a first threshold condition based on the first score. The method further includes providing the first frame as output of the analysis procedure.

The invention relates to the field of oral cavities, and particularly discloses a lasting antibacterial type composite tooth socket for medicine carrying and a preparation method thereof.The lasting antibacterial type composite tooth socket comprises an adsorption layer and an antibacterial membrane layer, the adsorption layer is used for adsorbing oral cavity treatment liquid medicine, and the antibacterial membrane layer comprises a nano-silver antibacterial layer and a chitosan antibacterial layer; the preparation method comprises the following steps: mixing a tea polyphenol-polylactic acid composite solution, a nano-silver-carboxylation modified cellulose compound and a polyvinyl alcohol solution, and carrying out electrostatic spinning to prepare a nano-silver antibacterial fiber membrane, so as to form the nano-silver antibacterial layer; mixing chitosan with hot water, adding cinnamyl aldehyde, glycerol and boric acid, stirring to obtain a mixed solution, coating one side of the nano-silver antibacterial layer with the mixed solution, and curing to form a chitosan antibacterial layer; the adsorption layer is attached to the side, away from the chitosan antibacterial layer, of the nano-silver antibacterial layer, and then the lasting antibacterial type composite tooth socket for carrying the medicine is prepared through hot-pressing compounding. The drug-loaded composite tooth socket has the characteristic of further improving the antibacterial property and the antibacterial durability of the drug-loaded composite tooth socket.

Systems and techniques are described for determining at least one of a translational force or a rotational force applied by a dental appliance to a tooth or teeth of a patient. A system includes model teeth configured to represent a portion of a dental arch and receive a dental appliance, a post extending from a first end coupled to a respective tooth to a second end coupled to a base, at least one strain gauge integrally formed on a surface of the post between the first end and the second end, and processor communicatively coupled to the at least one strain gauge and configured to determine at least one of a translational force or a rotational force applied by the dental appliance to the respective tooth.

The invention relates to the field of oral clinical orthodontics, and discloses a method for generating an oral correction scheme, comprising: acquiring a face composite model of an initial state of a patient, the face composite model comprising a dental jaw portion and a soft tissue portion; respectively obtaining P correction schemes of the patient, wherein each correction scheme corresponds to a target state of tooth jaw movement; correspondingly obtaining face prediction models of P target states according to the tooth jaw movement and deformation face composite models of the P correction schemes; and in the P correction schemes, selecting an optimal correction scheme as a target correction scheme according to evaluation of the face prediction model in the target state. The invention further discloses electronic equipment and a storage medium, the orthodontic scheme is determined by predicting the appearance, the predicted result is closer to the real effect after orthodontic treatment, more bases are provided for the patient to select the orthodontic scheme, the patient can conveniently determine the ideal orthodontic scheme from the face expression, and a more preferable orthodontic scheme is generated.

A strut assembly for an oral appliance for the treatment of sleep apnea in a user includes a unitary body formed from a polymeric material. The unitary body includes an anterior end and a posterior end. A posterior projection is connected to the posterior end and an anterior projection is connected the anterior end. The unitary body, the posterior ball and the anterior protrusion integrally and monolithically formed.

The invention discloses a dental plaque display type anti-caries invisible appliance based on synergism of iron-based nano-enzyme catalysis and traditional Chinese medicine caries inhibition, and belongs to the field of oral medical instruments. The preparation method of the appliance diaphragm comprises the following steps: preparing a composite material with the functions of catalytically degrading a bacterial biofilm matrix barrier and killing internal bacteria from polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol (PETG) and a Fe3O4 nano-enzyme filler in a solution blending manner; and after the composite material is subjected to thermoplastic molding, a layer of molecularly imprinted polymer (MIP)-spiropyrane and chitosan-magnolol are coated with the fluorescent display agent which is prepared by mixing the molecularly imprinted polymer (MIP)-spiropyrane and the chitosan-magnolol. The iron-based nano-enzyme can catalytically degrade a bacterial biofilm matrix barrier and kill internal bacteria, and the MIP-spiropyrane fluorescent display agent can specifically display the accumulation condition of cariogenic bacterial plaque in the oral cavity under ultraviolet irradiation. The invisible orthodontic appliance can reduce or prevent caries while having the same orthodontic effect as other orthodontic appliances in the market.

The embodiment of the invention provides a registration method and system based on oral scanning data and CBCT data, and relates to the technical field of data processing. For any oral cavity model, firstly, the oral cavity scanning data and the oral cavity CBCT data are obtained and are subjected to preprocessing such as segmentation, and the preprocessed oral cavity scanning data and the preprocessed oral cavity CBCT data are obtained. The method comprises the following steps: preprocessing oral cavity CBCT data and oral cavity scanning data, then registering the preprocessed oral cavity CBCT data and the preprocessed oral cavity scanning data by using a normal vector of a triangular patch to obtain a registered tooth mesh model, so that a local optimal trap caused by distance measurement depending on global point cloud in the prior art can be overcome; according to the method, fine calibration is carried out based on the occlusal surface between the oral scanning data and the CBCT data, the oral scanning data and the CBCT data are fully fused through the coarse calibration process and the fine calibration process, more accurate tooth grid data are obtained, and then orthodontic treatment is assisted.

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 diffusion model dental crown design method based on multi-view consistency and shape prior, and relates to the technical field of computer vision, and the method comprises the following steps: training a three-dimensional dental nerve radiation field model through an input Shining3D dental crown design data set, and further rendering to obtain a multi-view RGB image; the hidden space representation of the multi-view image is obtained through an encoder, and the measurement of the consistency between views is determined through a multi-view correlation calculation module; modeling is carried out on joint image distribution of multiple views, consistency measurement, obtained through a multi-view correlation calculation module, between the views is introduced into joint probability distribution modeling, and multi-view images are edited through a multi-view fractional distillation sampling method. According to the method, the basic framework updated by the iterative data set is adopted, the model framework is divided into two stages of multi-view editing and nerve radiation field fine tuning, missing teeth with 3D consistency and without collision conflict are automatically generated, and the efficiency and quality of dental crown design are improved.

The invention relates to an occlusion guide plate designing and manufacturing method based on dentition mechanical analysis, which comprises the following steps: S1, acquiring oral cavity image data of a patient, and constructing a three-dimensional digital model comprising a dental crown, a tooth root and an alveolar bone structure; s2, calculating an overall mechanical reference point of a tooth root structure of an anterior maxillary tooth area; s3, acquiring an incisal edge midpoint of each incisal tooth and a cusp point of each canine tooth in the maxillary anterior tooth area, solving a geometric center, and connecting the geometric center with an overall mechanical reference point to form a dentition direction vector; s4, calculating the displacement relationship between the target dentition arrangement and the initial dentition arrangement in the lip-tongue direction; s5, calculating an included angle between the occlusal force direction of the maxillary anterior tooth area and the dentition direction vector; s6, determining key morphological parameters of the occlusion guide plate according to the calculation result of the included angle in S5; and S7, manufacturing the occlusion guide plate. Compared with the prior art, the method has the advantages of precise mechanical adaptation, quantitative treatment prediction, personalized design and the like.

The invention relates to the technical field of oral medical digitization, and discloses a 3D oral point cloud dental arch curve reconstruction method, which comprises the steps of constructing a target feature vector of each key point in each tooth point cloud based on a real three-dimensional coordinate, a curvature and a three-dimensional normal vector of each key point in each tooth point cloud, and training to obtain a target PointTransform model; inputting the 3D oral cavity point cloud to be reconstructed into a target PointTransform model, obtaining three-dimensional coordinates and confidence of each predicted key point in each tooth, screening the predicted key points with the confidence higher than a preset confidence threshold, and associating according to a dental arch sequence to form a dental arch key point set; selecting key mark points from the dental arch key point set, and performing dental arch curve reconstruction based on the key mark points; and performing multi-constraint optimization, local adjustment and segmented mixing on the reconstructed dental arch curve to reconstruct a dental arch curve with higher fitness.

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.

Systems and techniques for generating settings for an orthodontic alignment process are disclosed. The method involves receiving a digital representation of a patient's tooth and at least one value related to customization of an orthodontic treatment. A prediction of one or more tooth movements for setting is formed by executing a generator network comprising one or more neural networks. The generator network is further trained based on the formed prediction by performing operations including predicting the tooth movement, quantizing a difference between the predicted tooth movement and a reference tooth movement, generating a loss value based on the quantized difference, and modifying the generator network based on the loss value, to form a modified generator network. These systems and techniques enable efficient generation of settings for orthodontic alignment processes, thereby improving the accuracy and customization of the process.

A system comprises an image capture device, a processing device, and a display. The image capture device captures a stream of images of a face of a person showing a current dentition of the person and soft facial tissues of the person. The processing device processes the stream of images to generate a modified stream of images showing a modified dentition of the person and modified soft facial tissues of the person associated with the modified dentition. The display displays the modified stream of images.

The invention relates to dental medicine. A method for restoring an individual's vertical dimension of occlusion taking into account their facial proportions consists in obtaining, from a frontal view of the patient's face, an image of the patient's temporomandibular region and of the outline of the face, and determining from the image of the temporomandibular region the presence of condylar displacement in the joint space and the direction of the displacement in relation to the centric position. The same image is used to determine the patient's vertical dimension of occlusion and to ascertain the angular deviation from the Ricketts angle of normal vertical dimension of occlusion. The lower jaw is then relocated by the amount of the ascertained deviation and in the direction of said deviation to the SNA-Pm line of an SNA-Xi-Pm intermaxillary angle. The current Gl-Sn-Pog facial convexity angle is then determined for subsequent adjustment of the relocation of the lower jaw, and a digital graphical model is obtained of the lower jaw with the condyles in the normalized position in the joint space and in relation to the normalized intermaxillary angle and facial convexity angle.

A method, for forming an intraoral monitor includes forming a first portion of a retainer corresponding in shape to teeth. The method includes forming a second portion of a retainer corresponding in shape to the teeth and including a pocket for insertion of a sensor. The method includes coupling the first and second portions of the retainer to envelop the sensor in the pocket, the retainer having an opening such that the sensor is exposed to the buccal side of the mouth of a user when the retainer is mounted on the teeth.