109 results about "Tooth movement" patented technology

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.

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.

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 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.

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.

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.

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.

The utility model discloses a one-way non-return motion device which comprises a cat litter basin, a cat litter cavity is formed in the cat litter basin, and guide sliding rails are symmetrically arranged on the inner walls of the two sides of the cat litter cavity. The two ends of the movable rake teeth are in sliding fit with the guide sliding rails; the limiting assemblies are distributed on the guide sliding rails and used for limiting the movable rake teeth to slide back and forth along the guide sliding rails; the limiting assembly and the non-return assembly are arranged in the guide sliding rail of the movable rake tooth, and the limiting assembly is used for preventing the movable rake tooth from derailing during sliding and can guide the moving track of the movable rake tooth according to different states during moving, so that the movable rake tooth moves according to different tracks during working movement and resetting movement; the controllability of the motion trail in the curve orbital transfer process is achieved, and the motion safety and reliability are improved.

The present invention discloses a dental data analysis system based on medical big data. The present invention relates to the field of dental analysis technology and solves the problem of determining whether the dental arrangement is normal based on the arrangement status of all teeth. The present invention focuses on the tooth arrangement in the dental bed through a tooth feature analysis processing end and monitors the midpoint distance between adjacent teeth in the upper and lower dental beds. It can detect abnormal tooth arrangement in time, which is of great significance to orthodontic patients. Doctors can quickly grasp the tooth movement deviation in the orthodontic process according to the arrangement signal generated by the system, fine-tune the appliance parameters, and ensure that the orthodontic effect is achieved on time. For patients with oral rehabilitation, it can avoid the new restoration affecting the surrounding tooth arrangement and maintain the mechanical balance of the oral chewing system.

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.

An orthodontic system having a plurality of orthodontic brackets, an archwire, and a closed loop formed from a metal wire having elastic properties. The brackets include first and second brackets attached to first and second teeth in an upper jaw or a lower jaw. The archwire is arranged around the jaw and coupled to the first and second brackets. The loop has first and second ends and a plurality of lobe pairs, each including an upper lobe and a lower lobe, arranged between the first and second ends. The first end of the loop is hooked around the first bracket. The second end of the loop is stretched and hooked around the second bracket, placing the loop in tension between the first and second brackets. Each successive lobe pair of the plurality of lobe pairs defines a loop segment that is positioned around a successive bracket along the first jaw.

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.