510 results about "Dental prosthesis" patented technology

The present invention provides a method for producing a dental restoration for preferably at least a part of at least one tooth. The method comprises the step of obtaining design data, wherein the design data includes acquired data and preliminary design data of the dental restoration. The method further comprises the step of modifying the preliminary design data before at least one manufacturing step to obtain modified design data and producing the dental restoration based on the modified design data.

An omni-abutment includes (i) an apical connection portion that mates / attaches with the receiving portion on a corresponding implant; and (ii) a coronal superstructure. The dental abutment provides features that are not currently found in abutments on the market, allowing the abutment to be used as a key foundation for scanning, impression taking, stability testing, and much more which ultimately would lead to an easier restorative process and fabrication of a dental prosthesis. The abutment could also be used for fabrication of a final prosthesis. The abutment may include alignment indents or protrusions in a platform thereof, internal grooves (e.g., square or rounded) as a tri-lobe or other configuration in the central axial hollow channel, recesses (e.g., divots, grooves) in the exterior periphery for increased adhesion to a gingival healing cuff, internal threading in the hollow channel, and a hex, NC or other connection at the apical connection portion.

A method for designing and producing a reconstruction assembly for implantation onto a mandible to replace a resected or damaged portion, the method utilizing a virtual and a physical 3-D model of a patient, as well as the reconstruction assembly itself, the reconstruction assembly having a fixation implant, a fibular flap, implant posts and a dental prosthesis with removable positioning extensions.

A bite registration device and method for creating a dental prosthesis, the bite registration device comprising a fixed housing having a bottom surface and a top surface that defines a cavity that houses a yoke assembly and a rotational control assembly. A base plate connected to the bottom surface of the fixed housing, and a lower impression tray to hold a first amount of removable impression putty, attached to the bottom surface of the fixed housing, wherein the rotational control assembly controls the movement of the lower impression tray. An upper impression tray to hold a second amount of removable impression putty, attached to the top surface of the fixed housing, wherein the yoke assembly controls the movement of the lower impression tray. A bite registration device controller for regulating alignment of the upper impression tray and the lower impression tray.

The present disclosure relates to a computer-implemented method for designing a dental prosthesis. A first step of the method may be to obtain a digital 3D representation of a surface, the surface including at least a part of a preparation surface adapted to receive the dental prosthesis, wherein the preparation surface includes a visible part and a hidden part. A second step of the method may be to determine at least one part of a surface of the dental prosthesis using a statistical design model, wherein the at least one part is determined independent of any knowledge or estimate of the hidden part of the preparation surface. A final step of the method may be to design the dental prosthesis wherein the surface of the dental prosthesis includes the at least one part.

The present invention relates to: a photocurable restoration composition comprising a ceramic composition; and a dental prosthesis using a 3D printer. More specifically, the present invention relates to: a photocurable restoration composition comprising a silane-treated ceramic composition; and a dental prosthesis manufactured using the photocurable restoration composition by using a 3D printer. According to the present invention, it is possible to obtain a dental prosthesis having improved gloss, excellent thermal resistance and hardness, and improved uniformity and reliability.

In some embodiments thereof, the present invention discloses systems and methods for expeditiously designing and fabricating properly-fitted dental prostheses. A customizable arch-shaped apparatus approximating dentition is employed intraorally to register positional and relational characteristics between maxillary and mandibular arches, including the vertical dimension of occlusion. The apparatus is configured to allow accurate interface with oral anatomy via its constituent material(s) being pliable and moldable preferably but not necessarily when heated. Representations of dentition may be integrated on the apparatus to aid proper positioning. Intraoral scan data detailing precise arch dimensions is either referenced from pre-existing patient records or procured through digital oral scanning of the apparatus in situ. The registered positional relationships and acquired scan data are jointly utilized to virtually model and subsequently manufacture bridgework, veneers or dentures; the apparatus allowing dentition to be modeled and fabricated in a singular office visit prior to a final, confirmatory try-in where minor adjustments may ensue.

The present dental prosthesis has a palatal implant configured to be implanted subperiosteally and attached to the palatal process by a plurality of fixation screws. The implant has a spine retaining implant magnetic components therealong and having holes for the fixation screws. The prosthesis also has a maxilla denture having a palatal base plate and an alveolar ridge engaging periphery having false teeth installed thereon. The denture is configured to be placed in a mouth to engage a maxilla wherein the alveolar ridge engaging periphery engages an alveolar ridge of the maxilla. The denture comprises a plurality of denture magnetic components configured to align with the implant magnetic components so that the denture is magnetically retained in the mouth by magnetic attraction force between the implant magnetic components and the denture magnetic components.

Methods, systems, and techniques for collecting data for use in designing a personalized dental prosthesis for a patient. At least one camera is used to obtain a series of two-dimensional photos or a three-dimensional model of a head and face of the patient. At least one machine learning model is used to determine facial or oral landmarks and a central incisal edge of the prosthesis from the photos or model. Dimensions for the dental prosthesis are determined form the landmarks and central incisal edge. The dimensions include a labial border of the prosthesis, distal borders of the prosthesis, a superior border of the prosthesis, an inferior border of the prosthesis, a lingual border of the prosthesis, and buccal borders of the prosthesis. The dimensions are output to an output file for use in manufacturing the prosthesis.

The invention discloses a dental restoration customization system combining 3D printing with digital modeling, and particularly relates to the technical field of digital modeling, the dental restoration customization system comprises an oral cavity scanning module, a data fusion module, an occlusion mechanical analysis module, a restoration optimization module, a 3D printing module and a feedback monitoring module, the digital model is generated and transmitted to the data fusion module, the data fusion module integrates oral cavity scanning, medical records and dental data to form a personalized oral cavity digital model, and the occlusion mechanical analysis module collects occlusion data, analyzes stress distribution and feeds back the stress distribution to the prosthesis optimization module. The dental restoration optimization module adjusts the design of the restoration according to the oral cavity structure and the occlusion relationship of the patient, the 3D printing module performs high-precision printing according to the optimization design to generate a personalized dental restoration, and the feedback monitoring module monitors the comfort of the restoration through a pressure sensor and feeds back a result to the restoration optimization module for real-time adjustment. And the optimal performance and comfort of the prosthesis are ensured.

The embodiment of the invention is suitable for the technical field of dentistry and 3D printing, and provides a method and system for manufacturing a dental object, the method comprises the following steps: obtaining a dental model, the dental model comprising at least one abutment and a repair part associated with a dental prosthesis model; establishing a stent model, wherein the stent model is configured to be mounted on an abutment tooth; a base model is established, the base model comprises a first part and a second part, the support model is clamped between the first part and the second part, and the first part of the base model is aligned with the repair part of the dental model; establishing a tooth prosthesis model, wherein the tooth prosthesis model is aligned with the second part of the denture model; manufacturing a base plate based on the first part and the second part of the base plate model, and manufacturing a stent based on the stent model; the base and the stent are connected to obtain a dental object. By adopting the method, the dental object can be manufactured in a digital mode, and the manufacturing efficiency and accuracy of the dental object are improved.

The invention provides a microcapsule and a preparation method thereof, self-repairing resin and a preparation method thereof, and a dental prosthesis. The microcapsule is prepared from the following raw materials: a polymer matrix, an active substance, a plasticizer, a dispersing agent and metacrylic acid esters, wherein the active substance contains bone morphogenetic protein; the self-repairing resin comprises the microcapsule; the dental restoration comprises the microcapsule and / or self-repairing resin. According to the invention, the problem that the dental resin material has micro-cracks and wear in the long-term service process is solved.

A system for fabricating a dental restoration to restore a tooth at a restoration site in a dentition of a patient is disclosed. The dentition includes a restoration dental arch and an opposing dental arch. The restoration dental arch includes the restoration site and the opposing dental arch is opposite the restoration dental arch. The system includes an impression apparatus, a motion capture apparatus, an interface apparatus, and a restoration design system. The impression apparatus is configured to capture an impression of the dentition of the patient. The motion capture apparatus is configured to capture a plurality of location data points that represent the locations of the opposing dental arch relative to the restoration dental arch. The interference model generation system is configured to generate an interference model for the restoration site. The restoration design system is for designing a restoration using the interference model.

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 for preparing a dental prosthesis is disclosed. The method includes performing a first scan on a plurality of scannable temporary abutments including respective scannable members disposed on respective dental implants. The method includes performing a second scan on a transition prosthesis disposed on a plurality of scannable temporary abutments including respective scannable members. The method includes generating a model of the final prosthesis using computer-aided design (CAD) software based on the first scan and the second scan.

The present invention provides a dental curable composition and a dental prosthesis therefrom, capable of imparting fluorescence to the base material, as well as exhibiting outstanding operability, reducing shade changes in the base material, and providing excellent abrasion resistance, gloss retention, and fluorescence durability in the cured product. The present invention relates to a dental curable composition comprising a polymerizable compound (A), a polymerization accelerator (B), a fluorescent agent (C), and a polymerization initiator (D), wherein the polymerization accelerator (B) comprises a polyfunctional thiol (B-1) having two or more mercapto groups per molecule.

The embodiment of the invention provides a dental restoration model evaluation method and device, and the method comprises the steps: providing a first dental restoration model as an evaluation reference basis and a second dental restoration model to be evaluated; determining the score of the second dental restoration model under each preset design attribute by using the first dental restoration model, including: determining a first parameter value of the first dental restoration model under each design attribute and a second parameter value of the second dental restoration model under the corresponding design attribute; according to the first parameter value and the second parameter value, determining a score of the second dental restoration model under each preset design attribute; and determining the matching degree between the second dental restoration model and the first dental restoration model based on the score under each design attribute and the weight coefficient corresponding to each design attribute. By adopting the technical scheme, the dental restoration model can be evaluated accurately and quantitatively.

The present invention provides a method for manufacturing a dental prosthesis in which defective baking of a porcelain material is suppressed by using a zirconia composite sintered body that contains Nb2O5 and / or Ta2O5. The present invention relates to a method for manufacturing a dental prosthesis, the method comprising a step for performing a heat treatment or a polishing treatment as a pretreatment on a zirconia composite sintered body that contains Nb2O5 and / or Ta2O5, and a step for building up a porcelain material on the pretreated zirconia composite sintered body and performing firing.

The invention comprises a dental prosthesis device comprising a first dental prosthesis component to be fastened in the oral cavity of a patient, having an internal thread, a second dental prosthesis component to be fastened to the first component in the oral cavity of the patient, having a screw channel and a screw head abutment surface, and a screw for fastening the second dental prosthesis component to the first dental prosthesis component, having a screw head with a tool engagement section, an external thread section with an external thread corresponding to the internal thread of the first dental prosthesis component, and a shaft section located between the screw head and the thread section, wherein a head support surface is formed in the transition between the screw head and the shaft section for supporting the screw head on the screw head abutment surface of the second dental prosthesis component,and the threaded portion and the shaft portion are designed to pass through the screw channel of the second dental prosthesis component, characterized in that the external threaded portion of the screw has a longitudinal groove extending over the entire length of the external thread, and the screw head abutment surface of the second component has a projection corresponding to the longitudinal groove, the cross-sectional dimensions of which are designed such that the projection engages in the longitudinal groove when the external threaded portion is passed through the screw channel.

Methods, systems, and devices including a dental prosthesis having: a dental implant adapted to be inserted inside a jawbone and defining an elongated cavity; an abutment adapted to be partially inserted inside the elongated cavity and defining an access hole aligned with the elongated cavity; a screw adapted to be inserted inside the elongated cavity and the access hole and coupling the abutment with the dental implant; and an anti-rotation bar disposed inside the access hole and having a first end engaged with a head of the screw and an outer surface disposed in contact with the abutment, wherein the anti-rotation bar restricts a rotation of the screw inside the access hole.

Modeling material formulations usable in additive manufacturing of a denture structure, and additive manufacturing of denture structures employing same are provided. The modeling material formulations and the additive manufacturing parameters provide denture structures that exhibit mechanical, physical and biocompatibility properties that meet the requirements of the acceptable standards.

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.

The invention relates to the technical field of computer vision, and discloses a computer vision-assisted dental restoration adaptation system, which comprises an image acquisition module, an image processing module, an adaptation evaluation module, a central control module and a feedback optimization unit, high-resolution image data, including visible light images, three-dimensional scanning data and infrared images, of the interior of the oral cavity and a restoration body are obtained through multi-source imaging equipment of the image acquisition module, the form, texture and temperature distribution characteristics of the oral cavity environment are captured, and the image contrast and the alignment precision are enhanced in combination with the illumination control unit and the positioning calibration unit. Data integrity and detail visibility are ensured, and a reliable basis is provided for subsequent image processing; the image processing module performs preprocessing, feature extraction and segmentation on the acquired image data, so that the accuracy and efficiency of adaptive state analysis are improved.

Method for manufacturing a dental restoration, in particular a prosthesis or partial prosthesis, based on digital data, in particular digital data from a dental data library, comprising the steps: a) additive manufacturing of a dental restoration with partial surface allowance, preferably with partial surface allowance of a vestibular surface, and subsequently b) subtractive machining of the partial surfaces with allowance to form the dental restoration, preferably with the desired surface structure.

The invention discloses a dental restoration combined accessory integrated manufacturing method and a dental restoration. The integrated manufacturing method comprises the following steps: acquiring 3D scanning data of an initial tooth arrangement form; designing an orthodontic treatment scheme for the patient, determining adopted accessories, and determining three-dimensional positions, shapes and sizes of the accessories on teeth; acquiring 3D scanning data of the tooth arrangement form of the body; according to the initial tooth arrangement form and the body tooth arrangement form, a temporary tooth restoration is designed, an integrated accessory is designed on the temporary tooth restoration according to a pre-made orthodontic treatment scheme, and then a temporary tooth restoration entity is manufactured. According to the integrated manufacturing method of the dental restoration and the accessory and the dental restoration, the temporary dental restoration combined with the accessory is integrally manufactured.

There is provided a layered body that has gradations in translucency and color allowing the layered body to give an impression similar to that of natural teeth and with which the chipping of the surface layer (layer closer to the incisal edge of the dental restoration) can be reduced.The layered body comprises a surface layer containing zirconia containing at least one stabilizing element and a composition-gradient layer composed of two or more unit layers. The unit layers each contain at least one coloring element and zirconia containing at least one stabilizing element, and the composition-gradient layer is constructed as a result of the unit layers being stacked in such a manner that the amount of the stabilizing element in the zirconia containing at least one stabilizing element contained in the composition-gradient layer remains unchanged or decreases from the surface layer toward the surface of the layered body opposite the surface layer. The amount of the stabilizing element in the zirconia containing at least one stabilizing element contained in the surface layer is smaller than the amount of the stabilizing element in the zirconia containing at least one stabilizing element contained in a first composition-gradient layer, which is one of the unit layers constituting the composition-gradient layer and is adjacent to the surface layer.

The invention relates to an implant mounting assembly which allows a magnetic screw assembly to be screwed into a dental prosthesis by the force of a magnetic field without the need for bonding, screwing or mechanical compression.

A method for assisting in alignment of a dental prosthesis and dental implants for full arch dental implant placement includes obtaining a first digital intraoral scan image of a patient's oral cavity, creating a 3D virtual dental prosthesis model serving as a basis for producing the dental prosthesis for the patient, obtaining an adaptive element including a prosthetic prototype that is produced based on the 3D virtual dental prosthesis model and a plurality of matching indicators that are attached on the prosthetic prototype according to preset conditions, obtaining a second digital intraoral scan image and a tomographic scan image of the patient's oral cavity when the adaptive element is attached to a gum of the patient, and outputting a plan for implanting the dental implants into the patient's alveolar bone based on the second digital intraoral scan image and the tomographic scan image.

The invention relates to a sintered molding with a color gradient for use in the manufacture of dental restorations, obtainable by sintering a compression-molded element comprising five or more different ceramic powder layers, each powder layer comprising at least two different base powders and each base powder containing at least 80 wt. % ZrO2, each weight amount being relative to the total weight of the base powder.

The present invention relates to a method of manufacturing a dental component, in particular a dental prosthesis or a partial dental prosthesis, by means of a dental furnace, comprising the following steps:(i) additively manufacturing, in particular by means of 3D printing, a model of the dental component from a model material on the basis of a virtual 3D model of the dental component;(ii) embedding the model in an investment material;(iii) removing the model from the investment material, in particular by heating or burning out, to obtain a negative mold of the model;(iv) inserting a raw material required for manufacturing the dental component into the negative mold;(v) producing the dental component in the negative mold; and(vi) removing the negative mold.