82 results about "Tooth movement" patented technology

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 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.

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.

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.

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.

This invention discloses an auxiliary method for orthodontic treatment planning based on a digital twin of tooth movement, belonging to the field of orthodontic auxiliary technology. The method includes acquiring cone-beam computed tomography (CBCT) data of the patient's oral cavity and three-dimensional point cloud data of the tooth crown surface to construct a three-dimensional geometric model of the tooth-periodontal ligament-alveolar bone. The three-dimensional geometric model is discretized into a finite element mesh, and based on the patient's age, periodontal biotype, and CT grayscale value, periodontal ligament viscoelastic parameters, alveolar bone grayscale-mechanical mapping parameters, and tooth linear elastic constants are assigned to form an individualized digital twin of tooth movement. A target displacement vector is determined within the individualized digital twin of tooth movement, and the orthodontic force vector and anchorage requirement index are calculated. The anchorage requirement index is used to assist in the design of the orthodontic treatment plan. This invention can effectively improve the accuracy, predictability, and personalization of orthodontic treatment plan design, reduce reliance on experience, and optimize the overall treatment effect.

Disclosed herein are methods and devices for modifying appliance (100) material properties prior to or during orthodontic treatment. Orthodontic treatments with a modified appliance (100) are disclosed. The elasticity of the appliance material may be modified by the patient. The elasticity of the appliance (100) changes from an initial value (210) to a second value (220) greater than or less than the initial value (210). The modulus of the appliance material can be increased or decreased by changing the crosslinking amount of the polymer of the material, changing polymerization or crystallization, without changing the shape and / or color of the appliance (100). After a predetermined amount of expected tooth movement is achieved, the modulus of the appliance material is changed. The modification may be accomplished by one or more of exposure to specific light wavelengths and intensities, such as ultraviolet light or laser light, exposure to heat by which reactions within the appliance material are accomplished.

The invention discloses a re-visit monitoring method and system for tooth correction, and relates to the technical field of artificial intelligence, and the method comprises the following steps: obtaining a preliminary visit tooth three-dimensional model and oral scanning re-visit data of a patient, and generating a re-visit tooth three-dimensional model based on the oral scanning re-visit data; determining the dynamic weight of each tooth based on the anatomical property of the tooth and a preset correction scheme, and performing data alignment on the three-dimensional model of the primary diagnosis tooth and the three-dimensional model of the secondary diagnosis tooth based on the dynamic weights; the actual tooth movement amount of each tooth in each direction under a medical coordinate system is obtained through tooth axis analysis, the tooth movement efficiency in each direction is calculated based on a preset correction scheme and the actual tooth movement amount, and the teeth with abnormal movement efficiency are obtained based on the tooth movement efficiency. The problem that in the prior art, the movement efficiency of each tooth cannot be accurately evaluated and abnormal teeth cannot be positioned in the tooth correction revise process is solved.

The present disclosure discusses systems and methods for altering the position of teeth in a subject with an aligner. In an embodiment, a method of rotating a tooth includes attaching two engagers to the tooth and creating a force against the tooth, from contact of the aligner with the engagers, to cause rotation of the tooth. Additionally method can also be used for extrusion of a tooth. In an embodiment, a method of extrusion of a tooth includes attaching two engagers to the tooth, on opposing sides of the tooth, and creating a force against the tooth, from contact of the aligner with the engagers, to cause extrusion of the tooth.

The utility model discloses a molar mesial movement auxiliary device which comprises a main arch wire, a plurality of orthodontic brackets, an auxiliary arch wire, a ligature wire and an anchorage nail, the main arch wire penetrates through the orthodontic brackets and is fixed with the orthodontic brackets, two question mark hooks of the auxiliary arch wire are sleeved on the main arch wire, and the ligature wire is connected with the anchorage nail. The auxiliary arch wire is further provided with two small circles formed by bending, the small circle in the distal direction is rigidly connected to an anchorage nail planted on the alveolar bone through a fixing ligature wire, and the other small circle is free. According to the utility model, a stable rectangular structure can be formed, after force application, interference caused by lip and cheek movement or feeding is avoided, displacement is avoided, foreign body sensation is reduced, the bad effect of distal movement of anterior teeth and premolars can be avoided, friction force of tooth movement is not increased, and meanwhile, the structure is simple and convenient. And when the molars move forwards, the lip inclination acting force on the anterior teeth is also reduced.

The utility model provides a local position hollowed-out appliance which comprises a tooth socket body and a hollowed-out part corresponding to at least one tooth, at least one side of the hollowed-out part is provided with a supporting piece, the two ends of the supporting piece are fixedly connected with the tooth socket body respectively, the hollowed-out design is adopted on an invisible tooth socket, and the hollow-out part is arranged on the invisible tooth socket. Moreover, the supporting piece is additionally arranged and is used for inducing occlusion, so that a gap is favorably kept for teeth to be germinated, and orthodontic force required by tooth movement can be provided when teeth are required to be arranged and moved.

The invention relates to the technical field of orthodontic tooth movement in animal experiments, in particular to a mouse orthodontic tooth movement model and a construction method thereof, and the mouse orthodontic tooth movement model comprises a traction assembly and an anchorage nail; the laboratory mouse is provided with a maxillary bone, second molar teeth growing on the maxillary bone and incisors growing on the maxillary bone, first molar teeth of the laboratory mouse are extracted, and an avoiding space is formed in front of the second molar teeth after the first molar teeth are extracted; the anchorage nail is connected to the maxillary bone and is positioned between the second molar and the incisors; the anchorage nail is fixed after being implanted into the maxillary bone, so that the position change of the traction assembly caused by connecting the traction assembly to the incisors can be avoided; the traction assembly is arranged between the second molar and the anchorage nail, the front end of the traction assembly is connected with the anchorage nail, the rear end of the traction assembly can penetrate through the avoiding space and is connected with the second molar, the second molar is used as an experimental moving tooth, and the movement rule of human clinical orthodontic teeth can be better simulated.

A method, user interface and system for detecting and monitoring development of a dental condition. In particular, detecting and monitoring such a development by comparing digital 3D representations of the patient's set of teeth recorded at a first and a second point in time. For example, determining tooth movement for at least one tooth between the first and second point in time based on derived distances.

The present invention relates to a set of tooth-and-jaw position adaptation apparatuses for the step-by-step, precise and controlled correction of tooth and / or jaw misalignments. For this purpose, each adaptation apparatus comprises an upper component for the upper jaw and a lower component for the lower jaw, which are non-detachably connected to one another. The apparatus has individual chambers for fixing selected teeth or groups of teeth and specifically arranged free spaces in the form of mechanical recesses, which allow a biomechanically assisted movement of the teeth from a misalignment into the correct position. The forces exerted on the teeth can be adjusted in all three spatial dimensions in terms of strength, direction and duration of action, thus ensuring controlled and precise control of the tooth movements. Each movement is possible in a targeted manner and at the same time without loss of anchoring, including occlusion adjustment, i.e. bite adjustment, at the same time, i.e. without so-called side effects..

The invention relates to the technical field of orthodontics, in particular to a buccal side embedded canine tooth traction guide plate and a traction method thereof.The traction guide plate comprises a fixing end and a traction end, the fixing end is of a rectangular structure, the fixing end is fixed to an orthodontic bracket and an orthodontic arch wire on rear teeth through metal ligature wires, and the traction end is connected with the metal ligature wires. A traction end is mounted on the side, close to the embedded teeth, of the fixed end, the traction end is of a bent arc-shaped structure, a first traction position and a second traction position are arranged on the traction end, and the traction end is connected with a traction site bonded to the embedded canine teeth through an elastic rubber chain so as to pull the embedded canine teeth; according to the invention, the arc-shaped traction end with the first traction position and the second traction position is designed, the first hook is utilized to realize inclined movement of the embedded canine from the embedded position to the target area in the first stage, and the plurality of second hooks are utilized to realize vertical positioning and fine position adjustment of the teeth in the second stage; the accuracy and controllability of a tooth moving path are improved, and the treatment period is shortened.

Devices, systems, and methods for orthodontic treatment planning and treatment are disclosed herein. Various embodiments of the present technology are directed to a method of obtaining data characterizing movements of a patient's teeth from original positions to desired, final positions. In some embodiments, the method can include identifying one or more components of the movements, evaluating the movements, and / or modifying the movements. A method of the present technology can comprise obtaining an orthodontic treatment plan, which can include one or more suggested interventions to accomplish the tooth movements, a design of such intervention(s), and / or other useful information regarding the orthodontic treatment. In some embodiments, a method of the present technology comprises evaluating an orthodontic treatment during and / or after implementation of the treatment and, based on the evaluation, obtaining another orthodontic treatment plan and movement data characterizing movements of a patient's teeth from their current positions to desired, final positions.

The dental robot includes a platform and a suspension system. The suspension system supports the platform and automatically compensates for the weight of the platform, as well as the robotic arm, end effector, and tooth clamp attached to it. The suspension system maintains a constant height of the platform above the base when there is no external force on the tooth clamp. The suspension system allows the platform's position and orientation to change relative to the base in response to external forces greater than approximately 0.1 N on the tooth clamp, such as the result of movement of the object (changes in position and / or orientation). As a result, the platform's position and orientation remain fixed relative to the object's teeth in response to tooth movement.

This utility model relates to a self-ligating bracket, comprising a bracket body, the bracket body having a base plate, an archwire groove, and a sliding locking plate. The sliding locking plate, in the locked state, has a locking plate cover that covers the archwire groove. The locking plate cover has a predetermined shape to minimize its contact area with the archwire, thereby reducing friction between them. This invention, on the one hand, reduces friction to achieve efficient tooth movement under light force orthodontic treatment. Furthermore, due to its large groove space, it allows for simultaneous closure of extraction gaps and alignment under double archwire conditions, significantly shortening treatment time. On the other hand, this self-ligating bracket also allows for full archwire deformation under ligation, achieving efficient tooth control and thorough tooth alignment.

The application provides an orthodontic tooth movement monitoring method and system based on wax occlusion records, which comprises the following steps: obtaining an intraoral scanning model and a cone beam CT tooth model at time T0, superimposing the two models to obtain a complete model of each tooth containing a tooth crown and a tooth root; obtaining a wax occlusion record at time T N , optically scanning the wax occlusion record to obtain a three-dimensional digital model of the occlusion record and uploading the three-dimensional digital model; matching the occlusion pits of the digital model of the occlusion record with the occlusal surfaces of the complete model of each tooth to restore a tooth position model at time T N ; superimposing the tooth position models at times T0 and T N , and establishing a local three-dimensional coordinate system for each tooth; calculating three-dimensional movement data of the teeth; and a doctor remotely monitors the tooth movement of a patient with high accuracy by obtaining accurate three-dimensional data of the tooth position changes, provides reliable data for subsequent correction, and guides the next treatment of the patient.

The invention discloses a sectional type appliance for rapidly correcting anterior tooth reverse occlusal, which comprises an upper appliance and a lower appliance, each appliance comprises a reverse occlusal tooth socket for covering reverse occlusal dislocation teeth and other dentition tooth sockets for covering other teeth, and the reverse occlusal tooth socket is connected with the other dentition tooth sockets through an elastic structure. When the orthodontic device is used for correcting seriously staggered teeth, tongue-side thrust and lip-side tension are generated on the staggered teeth due to the existence of the elastic connecting structure after the orthodontic device is in place; in addition, due to the existence of the elastic connecting structure, the appliance generates a force for expanding a gap after being in place, so that the reverse inhale teeth are helped to obtain a tooth movement space to realize rapid movement; in addition, an occlusal force inducing inclined plane is arranged at the contact part of the appliance body part and the involution teeth, and the occlusal force can be utilized to correct the involution teeth through the inclined plane, so that the treatment and correction time of individual tooth involution is shortened.

The present invention provides a method for providing an orthodontic status and orthodontic treatment evaluation information based on dental scan data of a patient, implemented in a computing device including one or more processors and one or more memories storing instructions executable by the processors. The method is characterized by comprising: an initial image acquisition step of, when first dental scan data, which is three-dimensional scan data acquired by photographing the patient's head, is received, acquiring a first dental image, which is an image of the patient's teeth arrangement, on the basis of the received first dental scan data; a correction image acquisition step of, when the acquisition of the first dental image is completed, confirming a teeth arrangement status based on the first dental image through a pre-stored algorithm, and acquiring treatment solution information for correcting the teeth arrangement based on the confirmed teeth arrangement state, wherein acquired is a second dental image, which is an image of predicted teeth arrangement upon completion of the correction based on the acquired treatment solution information; an orthodontic appliance design creation step of, when the acquisition of the second dental image is completed, creating a design of a transparent orthodontic appliance for correcting the patient's teeth arrangement into a teeth arrangement corresponding to the second dental image; an intermediate image acquisition step of, in the process of correcting the patient's teeth arrangement as the patient has on the transparent orthodontic appliance based on the created design, when second dental scan data, which is new three-dimensional scan data, is received, acquiring a third dental image, which is an image of the patient's teeth arrangement being corrected, on the basis of the received second dental scan data; and an orthodontic status information provision step of, when the acquisition of the third dental image is completed, acquiring teeth movement vector information of the patient through the first dental image, the second dental image, and the third dental image, and generating orthodontic status information for orthodontic treatment of the patient on the basis of the acquired teeth movement vector information and providing same to a medical personnel account.

The present application relates to the technical field of medical data mining, in particular to a tooth invisible correction treatment scheme AI generation system, first, based on the similarity between historical tooth correction patients in the tooth deformity symptom sequence representing the tooth deformity symptom characteristics and the physiological feature data sequence representing the physiological data characteristics, similar patient clustering clusters are divided; then based on the treatment response characteristics represented by the planning deviation of the actual tooth movement distance of each historical tooth correction patient and the complication frequency distribution, the treatment comprehensive response is determined; finally, taking the sample reference degree represented by the number of samples in the similar patient clustering cluster where the tooth correction patient to be analyzed is located as the weight, combining the feature deviation distance and the treatment comprehensive response, the tooth invisible correction treatment scheme of the tooth correction patient to be analyzed is comprehensively determined, so that the accuracy of the obtained tooth invisible correction treatment scheme is higher.

The present application relates to an orthodontic simulation method and apparatus, a device, and a storage medium. The orthodontic simulation method comprises: obtaining a facial model of a target object, and identifying a lip line in the facial model; merging a dental model of the target object with a dental area of the facial model to obtain an orthodontic-ready model, wherein the dental area is an area surrounded by the lip line; calculating a facial midline position of the facial model, and performing orthodontic simulation on the orthodontic-ready model on the basis of the facial midline position to obtain an orthodontic simulation model; and performing facial deformation on the basis of the orthodontic simulation model to generate a facial simulation model, wherein the facial simulation model presents facial changes of the target object during an orthodontic stage. In the method provided by the present application, while performing orthodontic simulation on the basis of tooth movement changes, facial changes caused by dental orthodontics are also simulated, thereby effectively improving user experience.

The application discloses a kind of orthodontic path planning methods based on artificial intelligence.Method includes: scanning the whole teeth to be orthodontic to construct tooth model data, then obtain the initial pose of tooth;From tooth model data, tooth initial point cloud is extracted and is preprocessed to obtain the whole teeth point cloud;Orthodontic path planning model is constructed, the initial pose of tooth, preset target pose and the whole teeth point cloud are input into model, and after processing, the initial tooth movement of each step is output, and using heuristic method is post-processed, and the final tooth movement path is obtained, to realize orthodontic path planning.The method of the application is simple, easy and fast to realize, solves the problem that the accuracy of other artificial intelligence orthodontic methods is low and the planned path does not comply with the biomechanical movement rule, significantly improves the accuracy of orthodontic, and is convenient for promotion.

The invention relates to the technical field of crossing of orthodontics and digital medical treatment, and provides an orthodontic target position generation method based on cranio-maxillofacial skeleton harmony, which comprises the following steps: S1, acquiring multi-modal oral data of a patient, performing registration fusion, and constructing a three-dimensional integrated virtual model containing jaw bones and teeth; s2, performing bone form quantitative analysis, and automatically identifying the bone type and main bony limitation characteristics of the patient; s3, on the basis of the skeleton constraint conditions, solving and generating an individualized skeleton coordination correction target position matched with the skeleton form of the patient through a preset coordination degree evaluation function and a multi-objective optimization algorithm; s4, presenting the individualized bone coordination correction target position and an analysis basis through a visual interaction interface; and S5, by taking the confirmed individualized bone coordination correction target position as a reference, finishing tooth movement sequence planning of invisible correction and correction related component design. The defect of excessive or improper compensation caused by neglecting the skeleton basis in the prior art is overcome.

The invention relates to an appliance used for orthodontic treatment on the maxillary dental arch for bringing one or more teeth into the correct positions by applying forces in the palatal direction. With the appliance design subject to the invention, tooth / teeth movements in sagittal, vertical, and transverse directions are achieved.