169 results about "Tooth movement" patented technology

An appliance comprises a passive component and an active force generating component, in which the active force generating component is configured to react to a stimulus and generate tooth movement forces. In some embodiments, the passive component is configured to deflect when placed on one or more teeth and generate tooth movement forces, which are combined with tooth movement forces of the force generating component. In some embodiments, the passive component comprises a polymer which is less reactive to the stimulus than the force generating component. The force generating component can be configured to increase force to one or more teeth at an appropriate time.

The invention discloses a personalized tooth modeling method and system based on digital oral cavity imaging, and relates to the technical field of digital modeling. The invention discloses a personalized tooth modeling system based on digital oral imaging. The personalized tooth modeling system comprises a data acquisition module, a model construction module, a model fusion module, a tooth gap labeling module, a tooth health prediction module and a nursing matching module. According to the method, the personalized tooth model is generated by synthesizing the tooth structure and activity range data of the user, and the deep cleaning scheme and the daily nursing scheme are accurately matched according to the tooth gap and tooth surface health condition, so that the nursing scheme of each user can be customized according to the unique oral cavity condition; by comprehensively acquiring the tooth and jaw structure, the tooth movement range and the health information of the user, the accuracy and comprehensiveness of the model are ensured, and sufficient data support is provided for subsequent cleaning and nursing schemes.

A method for monitoring the positioning of the teeth including production of a three-dimensional digital initial reference model of the arches of the patient and, for each tooth, definition, from the initial reference model, of a three-dimensional digital reference tooth model; acquisition of updated image of at least one two-dimensional image of the arches in actual acquisition conditions; analysis of each updated image and production, for each updated image, of an updated map; optionally, determination, for each updated image, of rough virtual acquisition conditions approximating the actual acquisition conditions; searching, for each updated image, for a final reference model corresponding to the positioning of the teeth during the acquisition of the updated image, for each tooth model, comparison of the positionings of the tooth model in the initial reference model and in the reference model obtained at the end of the preceding steps to determine the movement of the teeth.

Systems and techniques are described for training and using a generative adversarial network (GAN) to produce intermediate stages and final setups for clear tray aligners (CTAs) including receiving, by one or more computer processors, a first digital representation of a patient's teeth, using, by the one or more computer processors and to determine a prediction for one or more tooth movements, a generator that is a neural network included in a GAN and that has been trained to predict one or more tooth movements, and producing, by the one or more processors, an output state that includes at least one of a final setup and one or more intermediate stages.

The present invention discloses an orthodontic appliance and a manufacturing method thereof. The orthodontic appliance includes: a fixing member and an orthodontic wire; the fixing member is used to be fixed on the tooth surface, and the orthodontic wire has a plurality of curved structures for releasing orthodontic force. The orthodontic wire is an elastic member with elasticity, and the orthodontic wire and the fixing member are detachably buckled and connected. This appliance can accurately control the amount of tooth movement, precisely quantify the acting force applied to the local and overall teeth; greatly save the time of patients and doctors, significantly reduce the medical cost, and greatly improve the convenience of orthodontics; this manufacturing method has a short production time, high production efficiency, greatly saves the manufacturing process steps, and reduces the medical cost.

Systems and methods for generating stages for a treatment plan include receiving a first three-dimensional (3D) representation of a dentition including representations of teeth of the dentition in an initial position, determining a second 3D representation including representations of the teeth in a final position, and generating one or more stages including intermediate 3D representations of the dentition by generating a first movement vector for a first tooth of the plurality of teeth, detecting a collision between the first tooth and a second tooth based on the movement vector, generating a second movement vector for the first tooth, and generating a first stage of the one or more stages according to the second movement vector for the first tooth.

Orthodontic systems and related methods are disclosed for designing and providing improved or more effective tooth moving systems for eliciting a desired tooth movement and / or repositioning teeth into a desired arrangement. Methods and orthodontic systems of the invention include tooth attachments having improved or optimized parameters selected or modified for more optimal and / or effective application of forces for a desired / selected orthodontic movement. Attachments of the present invention can be customized to a particular patient (e.g., patient-customized), a particular movement, and / or a sub-group or sub-set of patients, and configured to engage an orthodontic tooth positioning appliance worn by a patient, where engagement between the attachment and orthodontic appliance results in application of a repositioning force or series / system of forces to the tooth having the attachment and will generally elicit a tooth movement.

The invention relates to the technical field of oral medical treatment, in particular to a tooth orthodontic treatment scheme planning system, which comprises a database module, a processing module and a planning module, the data acquisition module is used for acquiring initial oral data of a patient before treatment and stage monitoring data in a treatment process; the scheme generation module is used for screening out a complete treatment scheme with the highest similarity in the database through feature similarity matching and generating an initial treatment scheme; the risk assessment module is used for extracting risk factors such as periodontal support force and calculating a risk level; the dynamic adjustment module is used for setting a tooth movement distance deviation threshold value according to the risk level, and comparing an actual tooth movement distance deviation value to generate an adjustment treatment scheme; and the doctor rechecking module is used for the doctor to adjust and recheck the initial treatment scheme and the adjusted treatment scheme according to the individual parameters of the patient. According to the scheme, intelligent planning, dynamic adjustment and scientific review of an orthodontic scheme can be realized, and the treatment accuracy and safety are improved.

The invention discloses a tooth arrangement system based on an occlusal separation angle. The tooth arrangement system comprises a registration program module, a left and right condylar process central point setting program module, an occlusal plane adjusting program module, an angle calculation program module, an opening and closing mouth movement program module, an automatic tooth arrangement program module, a dental arch line adjusting program module and a tooth movement program module, according to the tooth arrangement method based on the condylar axis occlusal separation angle, the ideal occlusal separation angle serves as the target to calculate the appropriate occlusal plane angle, the angle of the mandibular plane angle reaches the normal range, a doctor is assisted in formulating a better correction scheme, and the tooth arrangement accuracy is improved. The correction result is more stable, and the tooth occlusion function reaches the optimal state.

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.

The invention relates to a dynamic simulation method and system for a tooth movement process based on a Type model, and the method comprises the steps: carrying out the data collection of an artificial tooth and a fixed appliance through three-dimensional scanning, and obtaining the three-dimensional data of a tooth jaw structure; performing overlap analysis on the crown root model according to the three-dimensional data to obtain a digital dental model containing periodontal tissues; performing material attribute assignment on an anatomical structure in the digital tooth jaw model according to preset material parameters to obtain a biomechanical tooth jaw model; and performing time recursion iteration on the biomechanical tooth jaw model through finite element analysis to obtain four-dimensional dynamic simulation data for simulating a tooth movement process, so as to provide visual orthodontic process teaching demonstration based on the four-dimensional dynamic simulation data. According to the invention, the dynamic visual simulation of the tooth movement process is realized, the feedback of the Type Dont system can be quantified, and the teaching interactivity is improved.

The invention discloses a comprehensive oral diagnosis and treatment system, which relates to the technical field of oral medicine and medical instruments and comprises a tooth movement monitoring module, a low-intensity pulsed ultrasound module, a high-intensity focused ultrasound module, a blood flow monitoring module, a control module, a wireless communication module and a terminal module. According to the invention, comprehensive monitoring and treatment of tooth movement, periodontal tissue health, temporomandibular joint function and oral cavity related muscle dynamics of a patient can be realized. Meanwhile, the equipment integrates advanced low-intensity pulsed ultrasound and high-intensity focused ultrasound technologies, and has the functions of periodontal tissue repair, muscle relaxation and joint soft tissue treatment. Besides, through the wireless communication module and the terminal module, the system can provide real-time health data monitoring and personalized diagnosis and treatment schemes, and is widely suitable for patients with orthodontics, periodontal diseases, temporomandibular joint disorder and other related oral dysfunctions.

A wearable dental apparatus for capturing dental properties of a patient includes a support structure. The support structure is configured to be worn on the dentition of the patient. The wearable dental apparatus includes at least one sensor. The sensor is coupled to the support structure. The sensor is configured to capture a series of measurement of a dental property of the patient. The measurements are associated with one or more locations on the dentition of the patient. A dental map is generated based on at least some of the measurements and is displayed. The dentition of a patient is restored by selecting a restoration material based on the measurements.

The invention discloses an indirect bonding bracket guide plate and a manufacturing method and a using method thereof.The indirect bonding bracket guide plate comprises a plurality of guide plate bodies and connecting rods, the sides, close to teeth, of the guide plate bodies are provided with bracket assembling parts and guide plate occlusal surfaces, and the guide plate occlusal surfaces are matched with tooth occlusal surfaces; connecting rods are arranged on the sides, away from teeth, of the guide plate bodies, and all the guide plate bodies are connected through the connecting rods. When the guide plate is worn, the positions of the guide plate main bodies are adjusted by bending the connecting rods up and down, front and back, and left and right, so that the guide plate can be easily worn, and meanwhile, the occlusal surface of the guide plate and the bracket assembly part are positioned, so that accurate positioning is realized; the method is suitable for complex correction requiring accurate guiding and tooth movement direction limitation.

Intraoral systems and methods including aligners having soft tissue sensors. The soft tissue sensors may detect protein biomarkers to determine effectiveness of the aligners for causing tooth movement according to a treatment plan. One or more microneedles may be configured to pass the protein biomarker to the soft tissue sensor. A processor may be configured to compare a detected level of the protein biomarker to an expected lever of the protein biomarker, and determine whether an aligner should be replaced. A bias may be configured to apply continuous force to hold the microneedle(s) against a patient's soft tissue. A controller may be configured to apply a biasing force to move the microneedles(s) from a retracted position to an extended position to penetrate the patient's soft tissue.

The utility model discloses a bracketless invisible appliance with pressure ridges, which comprises a first pressure ridge and a second pressure ridge, the first pressure ridge and the second pressure ridge are respectively arranged on the lip side of central incisor, and a third pressure ridge and a fourth pressure ridge are arranged on the right side of the second pressure ridge. According to the bracket-free invisible orthodontic appliance with the pressure crests, the first pressure crests and the second pressure crests are designed at the specific positions of the bracket-free invisible orthodontic appliance, such as one third of the neck of a tooth, according to orthodontic requirements, and the shapes, the sizes and the positions of the pressure crests are accurately calculated, so that the orthodontic requirements of specific teeth are met; the pressure crests are in contact with the tooth surface through a convex surface formed on the appliance and apply force in a specific direction and magnitude, so that accurate control on tooth torque is realized, tooth movement is closer to ideal root control movement, and the problems of bad movement of tooth roots, tooth root bone windowing and bone cracking are solved.

The invention relates to the field of orthodontics, in particular to a tooth orthodontics intermediate motion prediction method based on a conditional diffusion model. The invention aims to solve the problem that in the existing digital orthodontic technology, the motion trail generation in the correction intermediate process depends on manual design, and the efficiency is low. According to the method, a conditional diffusion model is constructed, and supervised training is carried out by using data sets of tooth movement tracks before, after and during tooth treatment. In the reasoning stage, the model only needs to input tooth model data before and after treatment, and a complete intermediate movement track meeting biomechanical constraints and clinical requirements can be automatically and accurately generated. Through a data driving mode, expert experience is learned and reproduced, tooth collision can be effectively avoided, the occlusion relation is ensured, and the automation level and prediction precision of orthodontic scheme design are remarkably improved.

The invention relates to an oral cavity three-dimensional model reconstruction method based on a 3D Gaussian sputtering model and an expression rate analysis system, the oral cavity three-dimensional model reconstruction method comprises the following steps: acquiring intraoral image data of a patient in an orthodontic process, the intraoral image data comprising an intraoral two-dimensional image; according to the intraoral two-dimensional image, sparse point cloud information of the intraoral scene and a corresponding angle between the intraoral two-dimensional image and the intraoral scene are obtained; performing Gaussian parameter initialization to obtain a Gaussian initial sphere set based on an intraoral scene; and according to the intra-oral two-dimensional image and the corresponding angle, parameters of each Gaussian sphere are optimized until expectation is achieved, and an oral three-dimensional model based on the 3D Gaussian sputtering model is obtained through reconstruction. According to the method, a doctor can remotely and accurately judge the tooth movement condition of the patient and the occlusion relation before the upper dentition and the lower dentition, so that the doctor can conveniently carry out remote re-diagnosis on the patient, adjust the wearing of the tooth socket or go to hospital for re-diagnosis.

The present invention discloses a wearable electrical stimulation treatment device for promoting periodontal tissue remodeling, comprising a brace, wherein an electrode portion is provided at the gum contact portion of the brace, and a piezoelectric portion is provided at the tooth surface contact portion of the brace, wherein the electrode portion and the piezoelectric portion are connected via a metal wire embedded inside the brace. The invention provides a wearable electrical stimulation treatment device for promoting periodontal tissue remodeling, which can not only achieve maintenance treatment for periodontitis patients, but also accelerate orthodontic tooth movement. The present invention has high sensitivity during use, good stability and stretchability, and is low in price, simple to operate, safe and non-toxic. Patients can treat themselves at home, and it is easy to achieve large-scale industrial production, and is suitable for the field of scalable biomedical electronics.

A dental robot includes a platform and a suspension system. A suspension system supports the platform and automatically compensates for the weight of the platform as well as the robotic arms, end effectors, and tooth clamps attached thereto. The suspension system maintains the height of the platform above the base constant without an external force on the tooth clamp. The suspension system allows the position and orientation of the platform to change relative to the base in response to an external force on the tooth fixture greater than about 0.1 N, such as due to the subject's activity (change in position and / or orientation). Thus, the position and orientation of the platform remains fixed relative to the teeth of the subject in response to movement of the teeth.

The invention relates to the field of three-dimensional modeling, and provides a method, a device and equipment for generating a virtual gingiva, and the method comprises the following steps: obtaining a scanning model of a tooth, and segmenting a tooth model and a gingiva model based on the scanning model; wherein the gingival model covers a gap between adjacent teeth, and a corresponding hole is formed for each tooth model; obtaining the layer number of points influenced by each tooth; wherein the points influenced by the teeth are grid points influenced by tooth movement on the gingival model; the number of layers of the points influenced by the teeth represents the maximum topological hierarchy depth influenced by outward radiation from the edge of the corresponding hole of the tooth model; and according to the layer number of the points influenced by each tooth, carrying out layered movement calculation on the points on the gingival model to generate a virtual gingival model. According to the method, the problem that in the prior art, virtual gingiva generation only depends on gingival line geometric information and ignores real gingiva dynamic deformation characteristics is solved, and the generated virtual gingiva can dynamically adapt to tooth movement and keep biomechanical rationality.

The utility model relates to the field of impacted canine traction, in particular to a bottom plate triangular bonding type T-shaped tube for maxillary impacted canine traction, which comprises a bonding part for being bonded on impacted canine, a connecting column is fixed on the outer side wall of the bonding part close to the center, a blocking part is fixed at the end part of the connecting column, and the bottom plate triangular bonding type T-shaped tube is arranged on the bottom plate triangular bonding type T-shaped tube. A connecting arm is fixed to the side wall of the connecting column, a horizontal pipe used for being connected with a correction arch wire in a penetrating mode is fixed to the end of the connecting arm, and the horizontal pipe and the connecting arm are of a T-shaped structure as a whole. And poor bonding and poor bonding position caused by poor isolation or unclear operation field in traditional operation windowing are avoided. Compared with traditional elastic traction, the tooth moving efficiency is higher, and the treatment time is shortened.

To provide an arch wire for orthodontics that can reduce pain and discomfort during orthodontic treatment by using a low-rigidity wire. [Solution] The orthodontic archwire 10 has a loop portion 30 formed in a predetermined shape to enable loop mechanics, and is made of a superelastic material selected from the group consisting of nitinol, titanium-molybdenum alloy (TMA), and gum metal, which have a Young's modulus of 100 GPa or less. When the loop portion is activated, a force that slowly returns to its original shape acts continuously on the target tooth, physiologically promoting tooth movement and reducing pain during treatment, and further reducing the risk of complications due to excessive force, such as root resorption and damage to periodontal tissue.

The invention provides a dentale integrated orthodontic appliance and a design method and a manufacturing method thereof.The design method includes the steps that a digital model of the dentale integrated orthodontic appliance is generated, and the digital model of the dentale integrated orthodontic appliance comprises a shell-shaped tooth orthodontic model and a functional orthodontic model; the design method specifically comprises the following steps: acquisition of a shell-shaped tooth correction model: performing jaw position reconstruction based on a facial form demand, constructing a digital tooth jaw model under the jaw position, designing a tooth movement scheme on the reconstructed digital model, obtaining a target tooth jaw digital model, and generating the shell-shaped tooth correction model; and obtaining a function correction model: obtaining a final tooth jaw digital model based on the maximum circumference of the target tooth jaw digital model in a three-dimensional tooth movement range, and generating the function correction model based on the digital tooth correction scheme and the final tooth jaw digital model. The dental bone integrated orthodontic appliance provided by the invention can realize two-stage integrated orthodontic treatment, shorten the orthodontic treatment period and improve the orthodontic treatment effect.

The invention discloses an orthodontic tooth movement measurement method based on a circular coordinate system, which comprises the following steps of: acquiring cone beam CT (Computed Tomography) images of upper and lower jaw dentitions and alveolar bones before and after orthodontics, selecting the maximum section of the tooth in the lip-tongue direction along a tooth long axis, and intercepting a relative position map of the teeth and the alveolar bones before and after orthodontics; extracting outer contour diagrams of relative positions of the teeth and the alveolar bone before and after orthodontics from the relative position diagrams of the teeth and the alveolar bone before and after orthodontics, and overlapping the outer contour diagrams; matching the outer contour of the tooth before orthodontic treatment with the outer contour of the tooth after orthodontic treatment; the orthodontic tooth movement is measured based on the circular coordinate system, if the rotation radius is larger than or equal to 10 times of the root length, the orthodontic tooth movement mode in the lip-tongue direction is parallel movement, and if the rotation radius is smaller than 10 times of the root length, the orthodontic tooth movement mode in the lip-tongue direction is inclined movement. According to the method, the orthodontic movement mode is defined from the mathematical theory for the first time, the mathematical theory boundary value is given, and the orthodontic movement modes of teeth in the lip-tongue direction and the vertical direction are quantitatively analyzed.

A wearable dental apparatus for capturing dental properties of a patient includes a support structure. The support structure is configured to be worn on the dentition of the patient. The wearable dental apparatus includes at least one sensor. The sensor is coupled to the support structure. The sensor is configured to capture a series of measurement of a dental property of the patient. The measurements are associated with one or more locations on the dentition of the patient. A dental map is generated based on at least some of the measurements and is displayed. The dentition of a patient is restored by selecting a restoration material based on the measurements.

The invention prescribes a dental tooth elevator for dental use, one embodiment of which exhibits a doubled bladed instrument formed by a U-shaped notch which resists bending for extracted teeth and gum line when embedded to expand and loosen teeth between tooth and bone both mesio-distal (backward) and bucco-lingual (side-to-side) as said elevator is twisted by operator increasing tooth movement while, unlike traditional straight elevators, the flat tipped doubled blades further resists slippage during tooth extraction.

The invention discloses an interactive orthodontic prediction method based on a symbolic distance field and six-degree-of-freedom modeling. The interactive orthodontic prediction method comprises the following steps of (1) data preprocessing and three-dimensional modeling; (2) six-degree-of-freedom dynamic modeling; (3) symbolic distance field collision detection; according to the method, the six-degree-of-freedom energy minimization kinetic model is constructed, the symbol distance field collision constraint and differentiable detection algorithm are fused, and the gradient descent optimization strategy is combined, so that high-precision prediction and dynamic interaction optimization of the tooth movement track are realized.