1194results about "Dental prosthetics" 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.

The present invention discloses a method, device, storage medium, and medical system for generating a restoration dental model. Among them, the method comprises: obtaining the restoration type of the tooth to be restored, wherein the restoration type includes at least one of the following: tooth implant type, crown restoration type, and inlay restoration type; determining the key points of the tooth to be restored based on the restoration type, where the key points of the tooth to be restored are used to represent the characteristics of the tooth to be restored; determining the restoration dental model based on the restoration type and the key points of the tooth to be restored. The present invention solves the technical problem of low efficiency of making restoration dental models artificially in related technologies.

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

The invention relates to the technical field of three-dimensional reconstruction, and provides a three-dimensional reconstruction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a first image frame set of an oral cavity in a first state, and the oral cavity in the first state represents that at least one actual scanning rod is installed in the oral cavity; identifying a scanning rod area of each image frame in the first image frame set; and based on the feature information in the scanning rod region, splicing the plurality of image frames in the first image frame set, and reconstructing to obtain target three-dimensional data corresponding to an actual scanning rod in the oral cavity. According to the method, splicing is carried out based on the rigid structure, the influence of anatomical structures (such as gingiva, lip and tongue) in the image frame on the splicing precision can be reduced, and the overall precision of three-dimensional reconstruction can be improved.

An aspect includes examining a dental defect in an oral cavity, performing a minimally invasive procedure to detect or remove a portion of the dental defect, scanning the oral cavity including a residual tooth substance remaining after the performing, to obtain an intraoral scan, computing one or more parameters of the dental defect or residual tooth substance, and generating a number of treatment plans for one or more restoration materials based on a triangulation of the dental defect and an enforcement of constraints of the one or more restoration materials. Each treatment plan includes a geometry of a restoration option, and an optimal restoration option is selected from the plurality of treatment plans.

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

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.

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.

There is provided a method comprising: detecting and / or segmenting a dental-related anatomical structure of a subject from a dental 3D imaging model, wherein the dental-related anatomical structure includes a target for injection of anesthesia by a dental syringe, accessing sequential frames of an oral cavity of a subject captured by an image sensor during a dental session of the subject, presenting within a GUI, at least one fused frame depicting a merger of the sequential frames and the segmentation of the dental-related anatomical structure of the subject registered to the sequential frames, wherein the dental-related anatomical structure is depicted on the sequential frames at a location indicating the target for injection, and dynamically updating the location of the dental-related anatomical structure depicted on the sequential frames according to dynamic adaptation of a pose of the image sensor.

The invention discloses a root canal isthmus 3D printing research model construction method and device, a medium and a product, and relates to the technical field of root canal isthmus printing.The method comprises the steps that root canal original data and prepared root canal data are obtained; the root canal original data are screened various typical form data containing root canal isthmus; obtaining expanded main root canal diameter data according to the prepared root canal data, extracting original tooth root three-dimensional surface data according to the root canal original data, and combining the original tooth root three-dimensional surface data with the expanded main root canal diameter data to obtain a root canal isthmus 3D printing research model. The root canal original data screened out in the application contain all possibilities of the root canal isthmus, and compared with a modular stacking mode in the prior art, a mode of carrying out layer-by-layer modeling by utilizing the root canal original data obtained by scanning in the application can more accurately simulate the shape and size of the real root canal isthmus.

Devices, methods, and systems for placing dental auxiliaries on teeth are provided. In some embodiments, for example, a dental auxiliary positioner for placing a dental auxiliary on a tooth includes: a registration element configured to receive a patient's tooth; and an auxiliary support coupled to the registration element and further coupled to an auxiliary, where the auxiliary support is configured to position the auxiliary against a surface of the tooth, and where the auxiliary support includes a frame extending at least partially around the auxiliary, one or more struts coupling the auxiliary to the frame, and a flexible bridge coupling the frame to the registration element, where the flexible bridge is configured to bend in one or more directions relative to the tooth to adjust the position of the auxiliary on the surface of the tooth.

The invention provides a data scanning method and device, electronic equipment and a storage medium. The method comprises the steps that first scanning data of an oral cavity in a first state are obtained, the oral cavity in the first state refers to that at least one abutment is implanted into the oral cavity, and the first scanning data comprise initial abutment data and gingival data; second scanning data of the oral cavity in a second state are obtained, the oral cavity in the second state refers to that a corresponding scanning rod is installed on a base in the oral cavity, and the second scanning data comprise scanning rod data; determining a first conversion relation between scanning rod data and target base station data in the second scanning data; and processing the first scanning data and the second scanning data based on the initial base station data and the target base station data and the first conversion relation between the scanning rod data and the target base station data to obtain a target three-dimensional model. By means of the implant scanning method and device, the problems that the implant scanning process is complex, the scanning cost is high, and a user feels uncomfortable easily can be solved.

A photocurable composition, contains a (meth)acrylic monomer component, and photopolymerization initiator, in a case in which a rectangular sheet-like test piece A1 with a length of 40 mm, a width of 10 mm, and a thickness of 1.0 mm is produced by photomodeling under conditions in which the photocurable composition is irradiated with visible light having a wavelength of 405 nm at an irradiation dose of 11 mJ / cm2 to form a cured layer A1 with a thickness of 50 μm, the cured layer A1 is stacked in a thickness direction thereof to form a rectangular sheet-like modeling product A1 with a length of 40 mm, a width of 10 mm, and a thickness of 1.0 mm, and the modeling product A1 is irradiated with ultraviolet rays having a wavelength of 365 nm at an irradiation dose of 3 J / cm2 to produce the test piece A1.

A method performed by a computing system according to an embodiment of the present disclosure comprises: a step of determining a masked region of a current layer on the basis of a non-overlapping region between at least one previous layer among a plurality of layers and the current layer; and a step of updating the image of the current layer in accordance with a user input that sets an exposure amount with respect to the masked region of the current layer, the plurality of layers being designed to cure the photocuring material in order for each layer unit for 3D printing.

An apparatus for automatically modeling smile design may be configured to capture a first set of facial measurements via a camera system. Using said first set of facial measurements a structural feature model may be generated. Generation of a structural feature model may include generating an initial structural feature model using at least a first set of facial measurements; identifying a plurality of ideal measurements; determining a plurality of desired changes; and applying said desired changes to the structural feature model, generating a final structural feature model. Lastly, the final structural feature model may be displayed on a display device.

A socket preparation tool configured to facilitate autotransplantation of a donor tooth to a recipient site is provided. The socket preparation tool includes a tooth replica of the donor tooth. A coronal portion is optionally included for facilitating alignment of the tooth replica adjacent teeth during a simulated autotransplantation. A radicular portion includes a smooth surface configured to facilitate compression of soft bone or soft tissue of the tooth replica or a contoured surface adapted for filing or cutting bone of the tooth replica. A cylindrical attachment is configured to be coupled to the tooth replica, such as via a receiver. A method of guided autotransplantation of a donor tooth via the customized socket preparation tool includes at least fitting and adjusting the socket preparation tool coupled to the tooth replica in the recipient site, before extracting the donor tooth.

Embodiments may provide improved techniques for creating custom lingual or labial ceramic orthodontic brackets, and which provides the capability for in-office fabrication of such brackets. For example, a method of manufacturing customized ceramic labial / lingual orthodontic brackets by ceramic slurry-based AM may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model on a computer, designing a 3D CAD bracket structure model for a single labial or lingual bracket structure, importing data related to the 3D CAD bracket structure model into a ceramic slurry-based AM machine, directly producing the bracket (green part) in the ceramic slurry-based AM machine by layer manufacturing, and processing the brackets in a sintering and debinding oven prior to direct use.

Devices, methods, and systems for placing dental auxiliaries on teeth are provided. In some embodiments, for example, a dental auxiliary positioner for placing a dental auxiliary on a tooth includes: a registration element configured to receive a patient's tooth; and an auxiliary support coupled to the registration element and further coupled to an auxiliary, where the auxiliary support is configured to position the auxiliary against a surface of the tooth, and where the auxiliary support includes a frame extending at least partially around the auxiliary, one or more struts coupling the auxiliary to the frame, and a flexible bridge coupling the frame to the registration element, where the flexible bridge is configured to bend in one or more directions relative to the tooth to adjust the position of the auxiliary on the surface of the tooth.

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 invention discloses a regulation and control method for a tantalum coating phase based on low-temperature magnetron sputtering and application of the regulation and control method, and belongs to the field of coating preparation. The regulation and control method comprises the following steps: (1) pretreatment: carrying out high-energy bombardment on a matrix material; (2) regulating and controlling the phase of the tantalum coating as a beta phase: depositing an elemental tantalum coating on the surface of the pretreated matrix material; and (3) regulating and controlling the phase of the tantalum coating to be an alpha phase: firstly depositing a base coat on the surface of the pretreated matrix material, and then depositing the elemental tantalum coating. Through the low-temperature magnetron sputtering technology, controllable deposition of the beta phase / alpha phase of the tantalum coating at the temperature of 100 DEG C or below is achieved, the beta phase is obtained without a bottoming layer, the alpha phase is obtained through pure titanium or titanium-tantalum mixed bottoming layer, the alpha phase crystallinity is improved through low-energy interface regulation and control, the titanium-tantalum mixed layer can coordinate the thermal expansion difference, the high binding force of the coating is kept, and therefore the titanium-tantalum composite coating has the good application prospect. The method is suitable for sand blasting and acid etching of the titanium alloy dental implant, low-temperature process compatibility and clinical performance are both considered, and the problems of phase regulation and bonding strength are solved.

In some embodiments, apparatuses and methods are provided herein useful to providing data files associated with orthodontic appliances. In some embodiments, a system for providing data files associated with orthodontic appliances comprises a database, wherein the database stores the data files associated with the orthodontic appliances and a control circuit, wherein the control circuit is communicatively coupled to the database, a user device, and a printer, wherein the control circuit is configured to receive, from the user device, an indication of a selected orthodontic device, retrieve, based on the indication of the selected orthodontic device from the database, one of the data files associated with the orthodontic appliances, wherein the one of the data files associated with the orthodontic appliances corresponds to the selected orthodontic appliance, and transmit, to the printer, the one of the data files associated with the orthodontic appliances.

The utility model relates to the field of false tooth processing, and discloses a heat insulation wax melter which comprises a heating bin, a cover plate, a heater and a discharging pipe, the cover plate is hinged to the top of the heating bin, one end of the discharging pipe is communicated with the bottom of the heating bin, a valve is installed at the other end of the discharging pipe, the heater is installed in the heating bin, and heat insulation plates are arranged on the side wall of the heating bin. A switch cabinet is installed outside the heat insulation plate close to one side of the valve, a controller for controlling the heating temperature of the heater is installed on the side wall of the switch cabinet, and an observation window is further cut in the cover plate. High-temperature isolation can be formed through the heat insulation cotton, then people are prevented from being scalded, heating is controlled through the controller, work of heating equipment can be controlled, changes of set temperature and real-time temperature can be displayed, in addition, the opening area of the cover plate can be reduced through the observation window, and then temperature dissipation is reduced.

The present invention relates to methods for curing polymeric dental appliances comprised of partially cured photopolymerizable components, especially for additively manufactured denture base and artificial tooth components utilized in the production of full and partial dental prostheses. In particular, the invention relates to methods of utilizing a curing apparatus having one or more controllable heating sources and one or more controllable LED light sources to achieve specific preheating and light curing conditions for more effectively converting partially cured photopolymerizable components from a partially cured state to a final cured state.

A method of making a teeth-only, gingiva-free dental restoration device for a full-arch dental replacement of a replacement arch of a patient may include using a computing device for: receiving a model of a replacement arch of a patient having post-extraction tooth sockets defined by a substantially original interdental and interradicular ridge of the patient; generating a model of a teeth-only, gingiva-free dental restoration device having individual replacement teeth portions each having a tooth axis extending between a gingival section and an incisal / occlusal section; designating individual replacement teeth portions to include abutment holes based on a location in the model of the replacement arch of straight implants secured within corresponding post-extraction tooth sockets; modifying at least one of a location, shape, and size of one or more of the teeth portions; and outputting information regarding the model for fabricating a teeth-only, gingiva-free dental restoration device.

Systems, apparatuses, and methods to generate and present personalized animations based on patient dental records and information. Embodiments obtain dental images and related data for at least one dental object and use machine learning models to detect features including pathological, non-pathological, bone levels and anatomical structure. The data is used to generate a visual representation of the natural progression of one or more dental pathologies and the corresponding relationship(s) with the anatomy of the tooth. By illustrating the progression through visual means, the approach may be used to show how untreated diseases can impact different anatomical features, and thereby emphasize the importance of timely treatment.

The utility model discloses a false tooth model curing device, which comprises a fixed box, a support rotating structure and an irradiation structure, the support rotating structure is arranged on the fixed box, the irradiation structure is arranged on the fixed box, the support rotating structure comprises a fixed seat, a motor, a rotating seat, a bottom curing lamp, a glass plate, a glass cup and a false tooth clamping seat, the fixing base is fixedly arranged in the fixing box, the motor is fixedly arranged on the fixing base, the rotating base is arranged on the motor in a driving mode, and the bottom curing lamp is arranged in the rotating base. The utility model belongs to the technical field of false tooth equipment, particularly relates to a false tooth model curing device, and effectively solves the problems that a beaker in the false tooth model curing device is placed on a fixing frame and cannot rotate, a curing lamp is relatively fixed, and the surface of a false tooth is not uniformly illuminated, so that the curing is not uniform.

The present invention relates to a dental machining system for manufacturing dental restorations, the dental machining system comprising a dental tool machine (1) comprising a dental blank holder for holding one or more dental blanks (2) movable relative to one or more dental tools (3), one or more drive units (4) for movably holding each at least one dental tool (3) for machining the dental blanks (2), a determination unit for determining the type of each dental blank (2), and adjustment means for allowing a user to adjust the machining time, the quality level of the dental restoration, and the safety level of the dental restoration and the dental tool (3) against machining damage. The dental machining system further comprises a control unit adapted to execute a trained artificial intelligence algorithm adapted to generate process parameters for machining based on the type of dental blank (2), the machining time, the quality level of the dental restoration, and the safety level of the dental restoration and the dental tool (3) against machining damage, to calculate a time trajectory of the dental tool (3) for machining based on the build data of the dental restoration and the generated process parameters, and to control the dental blank holder and the drive unit (4) based on the calculated time trajectory.

The present disclosure provides methods and system for generating perspective data between two or more oral representations, comprising: presenting a first oral representation and a second oral representation on a digital display, wherein the second oral representation is configured to be manipulated by a user via a user input device; and generating perspective data between the manipulated second oral representation and the first oral representation, wherein the second oral representation is overlaid on the first oral representation such that the first representation is still visible on the digital display.