854results 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.

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.

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.

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 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.

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.

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.

A dental matrix for forming a crown on a tooth includes a body having a expandable tab, which allows the diameter of an opening to be expanded for removal of the matrix from the formed crown.

The example systems, methods, and / or computer-readable media described herein help with design treatment plans for orthodontic treatments. Treatment templates reflecting a user's treatment preferences are expressed in a domain-specific treatment language and include treatment protocols. Orthodontic treatment plans are customized based on the treatment templates and a physical condition of the patient. Treatment appliances are fabricated based on the customized orthodontic treatment plans.

In some implementations, one or more processors may receive three-dimensional (3D) scan data of a supragingival tooth structure of a patient. The one or more processors may design a dental restoration tool based on the 3D scan data of the supragingival tooth structure of the patient. The dental restoration tool may include a one-piece matrix including a facial matrix portion, a lingual matrix portion, and an integral hinge portion pivotably coupling, about an occlusal-gingival- extending axis, the facial matrix portion to the lingual matrix portion. The one-piece matrix may be configured to close, via the integral hinge portion, to form a mold cavity that encompasses one or more teeth of the patient during a dental restoration process.

A method is provided for assessing and categorizing temporomandibular disorder (TMD). In some cases, the method can include receiving data representing a potential for TMD of a patient. The method can include processing the data to identify an indicator of the TMD. The method can include identifying a treatment recommendation based on the indicator of the TMD. The method can include providing the treatment recommendation for display on a user device.

Disclosed is a computer-implemented method for adjusting an arrangement of a plurality of three-dimensional digital tooth models for a dental restoration. The method comprises selecting at least one of the three-dimensional digital tooth models, which is paired with a corresponding three-dimensional digital tooth model. A first calculation of a first adjustment of a geometric form of the selected tooth model is performed based on the second input defining a modification. The first adjustment is applied to the selected tooth model. A second calculation of a mapped adjustment of the geometric form of the paired corresponding tooth model is performed based on the second input or the first calculation. The mapped adjustment is based on a replica of the first adjustment adjusted relative to a local coordinate system of the paired corresponding tooth model and applied to the paired corresponding tooth model. The resulting adjusted three-dimensional digital denture model is provided for manufacturing.

Polymerizable, radiation-curable compositions are provided and comprise (i) monomers and (ii) at least one further component, wherein the (i) monomers comprise (a) at least one urethane (meth)acrylate that is at least difunctional, (b) at least one monofunctional acrylate having an alicyclic group and / or at least one monofunctional methacrylate having an alicyclic group, and (ii) the at least one further component comprises (c) at least one photoinitiator for the UV and / or visible range or a photoinitiator system for the UV and / or visible range. The compositions are usable for producing, via a rapid prototyping, manufacturing, or tooling process, dental prosthetic parts, orthopaedic instruments, or dental pre-forms that have a flexural strength of greater than or equal to 75 MPa, a modulus of elasticity of greater than or equal to 2600 MPa, and / or a water absorption of less than 45 [μg / mm3].

The subject application provides computer-implemented methods, a 3D CAD system and apparatuses for estimating one or more scaling factors to map between a 2D digital image of a dentition and a 3D digital model of a dentition and jaw. The subject application provides a solution to the technical problem of accurately establishing a spatial and dimensional correlation between 2D and 3D dental imaging techniques, leading to improved patient outcomes and more efficient dental treatment planning. It offers a more precise, efficient approach, thereby improving the process of preparing for a dental restoration.

A method for determining an internal structure of a dental prosthesis base having at least one blood vessel simulation. The method includes obtaining outer shell data which describe an outer shell of the dental prosthesis base. The method includes obtaining blood vessel data which describe the at least one blood vessel simulation. The method includes combining the outer shell data and the blood vessel data to form internal structure data, wherein the internal structure data describe an arrangement of the at least one blood vessel simulation within the outer shell of the dental prosthesis base. A method for the production of a dental prosthesis base is included. A dental prosthesis base with an outer shell and an internal structure is included, using the method herein. A data-processing device, a computer program and a computer-readable medium are also presented.

A dental machining system for manufacturing a dental restoration, including: a dental tool machine which includes: a dental blank holder for holding one or more dental blanks relatively movable with respect to one or more dental tools; one or more driving units each for movably holding at least one dental tool for machining the dental blanks; a determination unit for determining the type of each dental blank; an adjustment device for allowing the user to adjust the machining time, a level of quality of the dental restoration, and a level of security of the dental restoration and dental tool against machining damage. The system further includes a control unit which executes a trained artificial intelligence algorithm adapted to generate process parameters for the machining.

A method of providing repair decision support for a dental patient includes: receiving image data of an interior of an oral cavity of the patient, the image data corresponding to one or more imaging modes; deriving a plurality of parameters from the image data; applying the decision model to the plurality of parameters; and generating a repair decision recommendation based on the output of the decision model.

Methods of manufacturing dental etching templates. A virtual shell having one or more cavities shaped to receive one or more teeth of a virtual dental model of a patient's dentition may be formed. A virtual well may be formed at a position of the virtual shell based on an area on a tooth of the patient's dentition to be etched. Walls that define the virtual well may be shaped to accommodate a volume of a wafer that absorbs a liquid etching material and to accommodate a reservoir that extends beyond the volume of the wafer. The reservoir may be shaped to contain excess liquid etching material from the wafer. A physical etching template may be formed based on the virtual etching template.

Customized temporary veneers. The customized temporary veneers are configured to be temporarily attached to a target region of an individual's dental arch and include a plurality of tooth-covering regions, at least one joining region, and a gum-proximate region. Each tooth-covering region includes a corresponding vestibular region configured to at least partially cover a vestibular surface of a corresponding tooth of the dental arch. The at least one joining region operatively attaches a pair of adjacent tooth-covering regions to one another. The gum-proximate region extends from the plurality of tooth-covering regions and is configured to extend at least partially between the plurality of tooth-covering regions and a gum of the individual's dental arch. The corresponding vestibular region defines a vestibular region thickness, and the gum-proximate region tapers from the vestibular region thickness to a gum-proximate edge that defines a gum-proximate edge thickness.

An orthodontic appliance and uses thereof are disclosed. The first orthodontic appliance includes a shell-like body at least having a geometric structure allowing at least one tooth in a posterior region to move in a distal direction. The shell-like body is further provided with an auxiliary anchoring portion capable of absorbing a reaction force generated by the at least one tooth in the posterior region while moving in the distal direction. Provided between the shell-like body and the auxiliary anchoring portion is an auxiliary transmitting portion used for aiding transmission of the reaction force generated by the at least one tooth in the posterior region while moving in the distal direction.

The invention relates to the technical field of dental restoration, in particular to a digital production method and system for an artificial gingiva of a dental implant bridge, and the method comprises the steps: obtaining the slope difference of an occlusion section, dividing a contour region, setting segmented filling parameters, constructing a normal track, generating a central path, building an outer contour curved surface, and fusing filling data to generate a complete artificial gingiva model. According to the method, the slope difference value of the section point positions of the occlusal surface is calculated, so that the change state of the contour region is accurately recognized, the spatial analysis capability of the section data is improved, and the structural feature extraction is more refined. And filling parameters are respectively set for different contour areas by adopting a linear fitting mode, so that the partition regulation and control capability of the filling structure is effectively enhanced, and the height of a space filling level is more matched with the bionic requirement of gingiva. The continuous path is constructed by means of the direction vector of the contact surface of the adjacent dental prosthesis, so that the natural space transition between the gingival structure and the bridge structure is ensured, and the problems of path breakage and distortion in the manual design process are avoided.

To provide a thio-urethane (meth)acrylate compound that enables imparting flexural strength to a cured product.SOLUTION: A thio-urethane (meth)acrylate compound comprising two linkages represented by formula (X), two urethane linkages, and two (meth)acryloyl groups, wherein in formula (X), the two * each indicate a bonding site.SELECTED DRAWING: None