1765results about "Othrodontics" patented technology

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.

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.

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.

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.

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 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.

The invention discloses a digital stable jaw pad designing and manufacturing method, and relates to the technical field of oral rehabilitation and digital medical technology.The digital stable jaw pad manufacturing method comprises the following steps that a, three-dimensional point cloud data of oral dentition and mucosa of a patient is obtained through a three-dimensional scanner; b) determining a stable jaw position coordinate model by using an optical motion capture system; c) designing a jaw pad three-dimensional entity model with an anterior tooth area, a posterior tooth area and an edge structure based on the three-dimensional point cloud data and the stable jaw coordinate model; and d) manufacturing the jaw pad through 3D printing equipment, wherein the 3D printing equipment is formed by adopting a polyether-ether-ketone material. By integrating digital acquisition, design and manufacturing technologies, the pain point of a traditional method is solved, and personalized, high-precision and rapid manufacturing of the stable jaw pad is realized.

Provided are a method for generating an orthodontic design scheme, an electronic device, and a storage medium, for improving the success rate of automatically generating orthodontic design schemes. The method comprises: an electronic device acquiring dentition information of a patient, such as initial position information and target position information (step 101); generating a first orthodontic design scheme on the basis of the dentition information and a preset scheme generation process, wherein the first orthodontic design scheme comprises procedures of N orthodontic steps (step 102); traversing the procedure of each orthodontic step, and recording position information corresponding to a tooth marked with a key position node in the procedure of a first orthodontic step (step 103); and adjusting the position of the tooth marked with the key position node in the procedure of the first orthodontic step according to the position information corresponding to the tooth marked with the key position node in the procedure of the first orthodontic step and orthodontic constraints, to give a second orthodontic design scheme (step 104). Thereby, the generation efficiency and success rate of automatically generating an orthodontic design scheme can be improved.

The utility model discloses a dental system which comprises two correcting devices corresponding to the Nth correcting step and the (N + M) th correcting step, N and M are positive integers, each correcting device comprises a jaw plate structure connected with the upper jaw and the lower jaw, each jaw plate structure comprises a first part arranged corresponding to the upper jaw teeth and a second part arranged corresponding to the lower jaw teeth, and when the jaw plate structures are connected with the upper jaw and the lower jaw, the first part is connected with the first part. The first part and the second part abut against each other to form an abutting face, the two jaw plate structures corresponding to the two correctors have different parameters, and the different parameters are configured as follows: when the jaw plate structures are connected with the upper jaw and the lower jaw, the different parameters generate different acting forces and / or different moments. Different parameters can enable the two correctors to generate different acting forces and / or different moments, and the correction requirements of different correction steps are met through the different acting forces and / or the different moments.

The invention relates to the field of orthodontics, in particular to a device for controlling palatal root movement of anterior teeth of an upper jaw and a manufacturing method. According to the device, the traction arm and the traction ring which extend to the palatal side of the anterior maxillary teeth are additionally arranged on the basis of the transverse palatal bar and are matched with the traction buckle of the anterior maxillary teeth to guide orthodontic force to act below a tooth impedance center, so that root control movement which is difficult to achieve by a traditional orthodontic method is realized, bending torque on an arch wire or placing other root control devices is not needed, and the whole device is simpler and more attractive; in addition, the device part is manufactured by adopting a 3D printing technology, firstly, tooth and intraoral soft tissue data of a patient are obtained by scanning the interior of an oral cavity, then the oral scanning data are matched with CBCT, a specific device is designed by using software, finally, a finished product is directly printed in a 3D manner, the transverse palatal bar and the traction buckle are completely matched with the tooth surface by adopting the 3D printing technology, and the comfort level is high.

A method for diagnosing and recommending treatment to a patient that may or may not present with occlusal disease includes acquiring 3D scans of the patient's maxillary and mandibular arches, and acquiring occlusal assessment data of the patient's teeth and dental arches. The method also includes automatically generating a treatment plan recommendation, and a recommended treatment plan projection and a non-treatment projection based, at least in part, on the acquired 3D scans of the patient's maxillary and mandibular arches, and the acquired occlusal assessment data of the patient's teeth and dental arches. The method also includes automatically displaying a rendering of the patient's simulated dental arch N years in the future based on the automatically generated recommended treatment plan projection, and a rendering of the patient's simulated dental arch N years in the future based on the automatically generated non-treatment projection, where N is greater than 1.

The utility model discloses a correction component which comprises a first protruding structure arranged corresponding to the lip-cheek side or the tongue side of a first tooth jaw, and the first protruding structure is configured in the mode that when the first protruding structure abuts against a second tooth jaw of a pair jaw, a first jaw position is formed, the first jaw position deviates from an initial jaw position, and when the first jaw position deviates from the initial jaw position, the second jaw position deviates from the initial jaw position. The first occlusal force corresponding to the first jaw position is greater than the initial occlusal force corresponding to the initial jaw position. According to the utility model, the first jaw position can be reached through the mutual abutting of the first convex structure and the second tooth jaw, and the first jaw position has larger first occlusal force, so that larger orthodontic force can be provided for the first tooth jaw and the second tooth jaw.

The invention discloses a design method of a digital jaw pad, a forming method of an orthodontic appliance, the orthodontic appliance, an orthodontic appliance assembly, a device, equipment and a medium. The design method of the digital jaw pad comprises the following steps: acquiring a target digital tooth jaw; according to the outer contour of the target end face of the target digital tooth jaw, a datum line of the digital jaw pad on the target end face is determined, the target end face is a tooth end face, away from gingiva, in the target digital tooth jaw, and the datum line is used for generating the digital jaw pad. According to the invention, the datum line is determined according to the outer contour, and then the digital jaw pad is generated according to the datum line, that is, the digital jaw pad is generated based on the outer contour of the target end face, and for different outer contours of different patients, different datum lines can be determined to generate different digital jaw pads, that is, different digital jaw pads are generated according to different datum lines. The digital jaw pad can be individually designed according to the outer contour of the target end face of each patient, and the patient experience can be greatly improved.

The invention relates to a mechanical evaluation system based on rotation and inclination of a bracket-free appliance, and belongs to the technical field of orthodontic equipment. The system comprises four core units: an integral dental arch constraint unit simulates oral temperature through a constant-temperature water bath assembly, adjusts model postures through a camera holder type adjustable dental arch base, and constructs a precise constraint environment; the clinical displacement driving unit is based on an anchorage center bearing lever structure, and positioning-driving-data synchronization is achieved through adjustable anchorage positioning, multi-direction servo driving and displacement closed-loop calibration. The single-tooth mechanical sensing unit collects dynamic mechanical data, and interference is removed through Kalman filtering; and the data processing unit corrects attenuation deviation by using multiple linear regression in combination with environmental parameters, generates a mechanical attenuation curve, calculates a time attenuation percentage, and outputs a mechanical evaluation report by comparing with a clinical suitable force application interval. The evaluation accuracy and clinical suitability of the method provide a scientific basis for the optimization of an orthodontic scheme.

The embodiment of the utility model provides a shell-shaped dental instrument which comprises a shell-shaped body with a plurality of tooth containing cavities, a traction part for hanging a traction piece is arranged on part of the surface of the shell-shaped body in an outward protruding and extending mode, and the traction part and the shell-shaped body are integrally formed and are of a hollow structure. A containing groove for containing a traction piece is formed in the side surface of the traction part, the containing groove is used for being detachably connected with the traction piece, the maximum length of any first cross section of the traction part in the first direction is larger than the maximum length of any first cross section in the second direction, the first direction is the direction where the long axis of the traction part is located, and the second direction is the direction where the long axis of the traction part is located. The first direction is perpendicular to the second direction, the first direction and the second direction are located on the first cross section, and the containing groove faces the first direction or the direction opposite to the first direction.

The utility model provides an invisible appliance which comprises a shell-shaped body and a tongue muscle training piece, and the shell-shaped body is provided with a cavity for accommodating a plurality of maxillary teeth; the tongue muscle training piece is connected to the lingual gingival margin of the shell-shaped body or adjacent to the gingival margin, and is provided with a sensing cavity and a sensing opening for exposing the sensing cavity; wherein the sensing port is positioned on the tongue side of the tongue muscle training piece; the tongue muscle training piece is provided with a sensing cavity and a sensing opening exposing the sensing cavity, the sensing opening is located in the side, facing the tongue body, of the tongue muscle training piece, the tongue of a user completes tongue muscle training by touching the sensing opening and partially stretching into the sensing cavity, the experience feeling and interestingness are good, the training enthusiasm of the user can be stimulated, and the user experience is improved. And the tongue muscle training effect is improved.

Embodiments relate to obtaining a virtual 3D representation of a patient's dentition, segmenting the virtual 3D representation to obtain first and second segmented tooth representations of neighboring teeth in the patient's dentition. The method can involve determining an initial tooth pose for the first segmented tooth representation using a geometric parameter of the first segmented tooth representation and a geometric parameter of the second segmented tooth representation. A normalized tooth representation of the first segmented tooth representation is obtained by transforming the first segmented tooth representation using the initial tooth pose for the first segmented tooth representation. The normalized tooth representation is then input into a trained neural network to output a correct tooth pose for the first segmented tooth representation.

The present invention relates to a dental diaphragm copolyester and a preparation method thereof, the preparation method comprises the following steps: 2, 5-furandicarboxylic acid or an ester thereof, aliphatic or alicyclic diol and (2-hydroxy-5-formyl phenyl) diphenylborane are subjected to a reaction to obtain an esterification or ester exchange product; and carrying out condensation polymerization on the esterification or ester exchange product and the stabilizer to prepare the copolyester for the dental diaphragm. 2, 5-furandicarboxylic acid is derived from a renewable biomass resource and meets the requirements of green and sustainable development; compared with terephthalic acid and furan ring structures, the film has higher rigidity and polarity, the yield of hot press molding is improved, the same correction force can be met by a thinner film, the wearing comfort of a patient is improved, and meanwhile stress relaxation is improved; the catalyst perfectly combines strong Lewis acidity, intramolecular stabilization and potential bifunctional activation through structural design, provides possibility for efficient and green synthesis of polyester, avoids use of heavy metal, and is higher in biological safety.

The invention provides a condyle positioning device and a lower jaw fixator with the condyle positioning device.The condyle positioning device comprises a condyle positioning component, a tooth retention guide plate and a dividing structure formed between the condyle positioning component and the tooth retention guide plate. Wherein the tooth retention guide plate and the condyle positioning component are of an integrated structure and can be separated along the segmentation structure, the condyle positioning component is suitable for being fixed to the front edge of the ramus of the mandible of a patient, and the tooth retention guide plate is manufactured based on the tooth form of the mandible part of the patient and fixed to the corresponding dentition. The condyle positioning component is connected with the lower jaw fixator through a mortise and tenon joint structure so as to position the specific position of the condyle of the patient after the lower jaw operation.

The utility model relates to the technical field of orthodontics, in particular to a magnetic invisible orthodontic appliance for treating opening and closing of rear teeth, which comprises an invisible tooth socket, an eruption cap, a magnetic component and a retention accessory, the eruption cap is used for guiding and accommodating the growth of target teeth and is integrally formed with the invisible tooth socket; when in use, the retention accessory is arranged on the inner side of a tooth and is allowed to be accommodated in an invisible tooth socket; the magnetic assembly is arranged on the inner surface of the germination cap and comprises a first magnetic part arranged on one side, close to a target tooth, of the germination cap and a second magnetic part arranged on the occlusal surface of the target tooth; wherein the first magnetic part and the second magnetic part are in magnetic attraction connection and are used for realizing and enhancing the orthodontic force of the invisible tooth socket. Compared with the prior art, the magnetic invisible appliance is high in adjustability, stable in applied force, long in duration and capable of reducing mechanical stimulation.

Disclosed is a Transparent Dental Alignment Device and a manufacturing method for the Transparent Dental Alignment Device. The disclosed manufacturing method for the Transparent Dental Alignment Device includes the steps: 3D printing the dental alignment device using a composition for forming transparent dental alignment devices as the raw material (S10); Removing uncured resin and liquid from the dental alignment device obtained in step S10 (S20); Post-curing the dental alignment device obtained in step S20 (S30); Post heat treatment of the dental alignment device obtained in step S30 (S40); Cleaning the dental alignment device obtained in step S40 (S50).

The invention provides a tooth orthodontic path generation method and device, electronic equipment and a medium. The method comprises the following steps: acquiring three-dimensional point cloud data of an initial dentition of a target patient and an initial pose of each tooth in a global coordinate system; calculating a target six-dimensional pose of each tooth based on the target dental arch curve and orthodontic medical constraints; and by taking the target six-dimensional pose corresponding to each tooth as a search space, generating an optimal orthodontic path of each tooth from the initial pose to the target six-dimensional pose by using an improved particle swarm optimization algorithm. Therefore, automatic, high-precision and interactive tooth orthodontic path generation is realized, and the clinical efficiency and personalized level of tooth orthodontic treatment are improved.

The present disclosure discusses techniques for fabricating bite interference elements within polymeric dental appliances. The techniques disclose at least one polymeric shell that includes a number of cavities shaped to fit over a patient's teeth. The polymeric shell includes an occlusal appliance surface shaped to fit over an occlusal tooth surface of the patient. One or more bite interference elements are formed within the occlusal appliance surface, and each bite interference element includes a partially disc-shaped feature extending radially away from the occlusal tooth surface when worn by the patient.

Apparatuses and methods are provided for displaying the position of a dental file during endodontic treatment. Data showing the morphology of a tooth is obtained. In one embodiment, the data is X-ray image data. A three-dimensional representation of the dental file positioned in the tooth is generated, and a length that the dental file extends from an upper surface of the tooth is determined from the three-dimensional representation. A representation of the dental file is provided in the image of the tooth obtained from the data showing the tooth morphology, with the representation of the dental file being depicted such that a part of the representation of the dental file extends from the upper surface of the tooth in proportion to the length that the dental file extends from the upper surface of the tooth as determined from the three-dimensional representation and such that a remaining part of the representation of the dental file extends into the tooth, with a part of the remaining part of the representation of the dental file being positioned in the root of the tooth in the image. The image of tooth and representation of the dental file may be displayed.

The utility model discloses a dental component which comprises a first matching structure arranged corresponding to the tongue side or the cutting end of anterior teeth of an upper jaw and a second matching structure arranged corresponding to the lip side or the cutting end of anterior teeth of a lower jaw, and the first matching structure and the second matching structure are configured as follows: when the upper jaw and the lower jaw are occluded, the first matching structure is matched with the second matching structure; the first matching structure and the second matching structure abut against each other to generate force or moment, and the force or moment at least comprises lip tilting force corresponding to the anterior teeth of the upper jaw or lip tilting moment corresponding to the anterior teeth of the upper jaw. In the correction process, at least the maxillary anterior teeth generate lip inclination, firstly, the relative positions of the maxillary anterior teeth and the alveolar bone can be gradually adjusted, so that the maxillary anterior teeth are suitable for being pressed down; on the second aspect, the gap between the upper jaw anterior teeth and the lower jaw anterior teeth can be enlarged so that the first matching structure and the second matching structure can be conveniently installed and designed; and thirdly, the anterior teeth of the upper jaw have certain inclination, so that the anterior teeth of the lower jaw can interact with the anterior teeth of the lower jaw conveniently, and the anterior teeth can be depressed, adducted and the like conveniently.