249 results about "Dental prosthesis" patented technology

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 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.

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 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 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.

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 discloses a dental implant guide system comprising a dental implant guide and three variably occurring accessories: a base plate, an index guide, and a transport guide, wherein the components of the dental implant guide system are used in a stackable and modular configuration or a non-stackable and sequential configuration. The dental implant guide herein disclosed consists of a universal tooth-shaped sleeveless implant guide that converts to an immediate fixed dental prosthesis. The method of implanting a fixed dental prosthesis using the dental implant guide systems of the present invention are also herein disclosed.

A removable dental prosthesis (1), comprising a prosthesis body (2) and a number of female elements (18, 168) which can each be plugged onto an associated male element (14, 14', 14'') arranged in particular on a tooth (6) or an inserted dental implant (72) in the oral cavity of a patient, and a female element (18, 168) suitable for use in such a dental prosthesis (1) are to be able to be produced with a particularly high accuracy of fit while maintaining a particularly low level of complexity. For this purpose, according to the invention, the or each female element (18, 168) has an inner cap (32, 160) which forms a contact surface (31) for the associated male element (14, 14', 14'') and can be plugged onto the latter, the inner cap being made of a comparatively hard plastic in the region of the contact surface (31) and being fastened to the prosthesis body (2) via an intermediate body (36) formed from what is by comparison a softer plastic.

To easily and appropriately position a dental prosthesis and an abutment, and to appropriately prevent misalignment of the dental prosthesis with the abutment.SOLUTION: A dental abutment 20 includes: a base 21 fixed to an implant fixture 10 embedded in an alveolar bone 1; and an embedding part 22 fixed to an embedding hole 33 provided in a dental prosthesis 30. The implanting portion 22 includes a first flat surface 23a, a second flat surface 23b, and a spring member 24. The first flat surface 23a, the second flat surface 23b corresponding to the first flat surface 35a and the second flat surface 35b are provided in the embedding hole 33. When the embedded portion 22 is inserted into the embedding hole 33, the spring member 24 biases an embedded portion 23 in a direction in which the first flat surface 23a and the second flat surface 23b are pressed against the first flat surface 35a and the second flat surface 35b.SELECTED DRAWING: Figure 1

The present application relates to the field of dental prosthesis manufacturing, and particularly relates to a 3D printing device and method for customized design of dental prosthesis. The device comprises a printing box, a 3D printing device, a cleaning assembly, a printing base, a donor membrane assembly, an accumulator, a deposition assembly and a prosthesis assembly assembly. The 3D printing device is arranged on the top of the printing chamber; the cleaning assembly is arranged on one side of the 3D printing device; the printing base is arranged at the bottom of the printing chamber and is configured to be reversibly movable; the donor membrane assembly is arranged on the other side of the cleaning assembly; the deposition assembly is arranged in the ring-shaped structure of the membrane; and the prosthesis assembly assembly is arranged through the installation chamber. The present application solves the industry problem of easy collapse of the thin-walled metal base of the dental prosthesis by means of integrated design and laser deposition innovative process, while realizing full-process automatic production, significantly improving efficiency and precision.

The present invention provides an unfired zirconia composite and a dental mill blank, with which a dental prosthesis can be manufactured with a single sintering operation without a pre-sintering operation and which have appropriate strength to withstand machining. The present invention pertains to: an unfired zirconia composite composed of an unfired zirconia molded body and a resin, wherein the resin is embedded in the unfired zirconia molded body; and a dental mill blank including said unfired zirconia composite.

A dental prosthesis is provided which is formed of a crown portion and a partial root portion. The prosthesis is more substantial than traditional crowns, and is sized and configured to fit closely within a root hole left from an extracted tooth. The partial root portion is able to be directly abutting the tissue of the patient, and does not rely on any other framework such as a portion of existing tooth, bone graft, and the like. An implant may be positioned through a channel defined in the prosthesis and the prosthesis may be installed at the same time as the implant.

The invention relates to the technical field of metal additive manufacturing, in particular to a multi-parameter cooperative control cobalt-chromium alloy forming method and a dental prosthesis, the forming method comprises the following steps: 1) powder pretreatment: performing vacuum plasma activation on cobalt-chromium alloy powder to obtain activated cobalt-chromium alloy powder; attaching a nano oxide surface modifier to the surface of the activated cobalt-chromium alloy powder to obtain pre-printing powder; and 2) 3D printing: in the printing process of the pre-printed powder obtained in the step 1), gradient energy printing and dynamic atmosphere control are adopted to obtain a cobalt-chromium alloy molded part. Accurate and controllable growth of the oxide layer on the metal surface is achieved, the thickness of the oxide layer is stabilized within an ideal range, and the requirement for high-strength combination of gold and porcelain is met.

The invention relates to a method for determining an internal structure (30) of an artificial tooth (24). The method includes acquiring outer shell data describing an outer shell (28) of the artificial tooth (24). First reference geometry information is also defined or acquired. This information describes a first reference geometry (B1) that divides the outer shell (28) of the artificial tooth (24) into a first shell portion (28a) and a second shell portion (28b). Furthermore, a first compressive strain shell (32) is produced by virtual compressive strain on the first shell portion (28a) in one direction with respect to the first reference geometry (B1). At least one sub-volume (34, 36) of the artificial tooth (24) is also derived, said sub-volume being delimited by the first compressive strain shell layer (32). The invention also relates to a method for producing an artificial tooth (24) having a predetermined shell layer (28). The invention also relates to an artificial tooth (24), a data processing device, a computer program and a computer readable medium.

The invention discloses fully sintered dental zirconia and a preparation method thereof, and mainly relates to the technical field of dental prostheses. Compared with the prior art, the fully-sintered dental zirconium oxide is prepared from zinc stearate, polyvinyl alcohol and composite zirconium oxide; in the preparation of the composite zirconium oxide, ethyl silicate is hydrolyzed under an alkaline condition to obtain nano silicon dioxide sol, hydroxyapatite is wrapped on the surface of zirconium oxide through the nano silicon dioxide sol, and finally, the nano silicon dioxide sol is converted from sol to gel through heat treatment and is dehydrated to form a compact coating layer. Hydroxyl in the sol is condensed to form a more stable nano silicon dioxide network structure, and finally the fully-sintered dental zirconium oxide with higher compactness, fracture toughness and bonding strength is prepared.

Dental restoration technologies include dental prosthesis components such as implants, abutments, crowns, and the like that are mapped to a patient's mouth prior to and during installation. Fabricating at least a portion of one or more components of the dental prosthesis using a fully calibrated and characterized fabricator can reduce sources of error that affect the success of fabrication and installation processes. The components of the dental prosthesis are represented by library files that are tailored to reflect particular characteristics of the components of the prosthesis to be fabricated, the fabricator, the material used during fabrication, and / or the environment surrounding the fabricator. The library files may be determined based on an acquired scan of the patient and / or based on inputs received from a user during the design process. The library files may be generated using virtual modeling techniques, and / or based on a component design that falls within pre-determined parameters.

Systems and methods are provided for scanning a dental impression to obtain a digital model of a patient's dentition as an input to computer aided design (CAD) and computer aided manufacturing (CAM) methods for producing dental prostheses. Systems and methods are provided for scanning a physical impression of a patient's dentition and constructing a virtual surface image of the patient's dentition from the scan data thereby obtained. The virtual surface image of the patient's dentition is constructed using isosurfaces and density gradients of a volumetric image and then directly creating a surface image based upon void spaces that correspond to the patient's dentition.

The present application relates to the technical field of oral prosthetics, in particular to a porcelain dental prosthesis color prediction system, a construction method and a prediction method, comprising: a multi-modal image acquisition module for acquiring high-definition color images of natural teeth in the oral cavity, three-dimensional scanning images of tooth preparation surfaces and microstructure images of porcelain prosthesis substrates, and synchronously acquiring environmental light parameters; an image recognition processing module for processing original data, outputting natural tooth color space feature vectors, tooth preparation surface morphology parameters and porcelain layer substrate micro-pore distribution parameters; an intelligent color prediction module for constructing a deep learning model, combining an environmental light correction algorithm to predict the final presented color data of the prosthesis; a parameter output and optimization module for generating a color deviation report, outputting porcelain layer thickness adjustment suggestions and firing process parameter optimization schemes, and supporting visual display of the prediction effect. Thus, the problems of one-sided prediction dimension and subjective optimization in the prior art are solved.

Apparatus and method for installing a multi-tooth dental prosthesis in one session are shown and described. A first tool attaches to the jawbone, and serves as a foundation for subsequently used guides. Existing teeth and dental fixtures are removed, and the bone tissue is removed to accommodate the prosthesis. Subsequently, a drill guide is used to drill implant holes. An abutment guide is then used to place abutments. Copings are then installed. Next, the prosthesis may be installed and cemented to the copings. A resinous filler material may be applied to fill gaps and holes in and between the copings and the prosthesis, and is sanded smooth.

Disclosed are systems and methods of a decision intelligence (DI)-based computerized framework that automatically and / or dynamically implements a color algorithm for performing staining and glazing dental restorations. The framework operates by leveraging determined color variations through AI / ML-based analysis that generate detailed color maps, which can be translated into precise printing instructions controlling the mixture and layering of dental-grade glazing materials. A printing system can employ multiple print heads with varying base colors and opacity levels to create microscopic color gradients and translucency effects matching natural tooth enamel. The disclosed automated processing applies personalized color patterns in microscopically thin layers, ensuring consistent glaze thickness while replicating regional variations across the tooth surface. Such approach eliminates manual glazing variability while achieving superior customization compared to traditional pre-set patterns, resulting in dental restorations that integrate seamlessly with existing teeth.

A dental prosthesis is provided which is formed of a crown portion and a partial root portion. The prosthesis is more substantial than traditional crowns, and is sized and configured to fit closely within a root hole left from an extracted tooth. The partial root portion is able to be directly abutting the tissue of the patient, and does not rely on any other framework such as a portion of existing tooth, bone graft, and the like. An implant may be positioned through a channel defined in the prosthesis and the prosthesis may be installed at the same time as the implant.

The present disclosure provides dentures and other dental prostheses with breakaway flanges and methods for providing dental conversions using the same. The denture can include a dental arch including a set of false teeth arranged along a curve of the dental arch, and a fitting portion defining a border of the denture. The fitting portion can include a palate area bounded by the curve of the dental arch and multiple flanges arranged about the curve of the dental arch, wherein the flanges extend away from an intaglio surface of the dental arch. The denture also includes multiple struts arranged between the dental arch and the fitting portion to connect the dental arch to the fitting portion.

A dental preform (1) comprises a central portion (2) comprising a first elementary portion (2a) and a second elementary portion (2b) fixed to each other by a first resin (7) and separated at least by one web (6). The first elementary portion (2a) and the second elementary portion (2b) each comprise a plurality of first filamentary elements (5) and the first resin (4). The first filamentary elements (5) and the web (6) extend predominantly in a first direction (AA). A peripheral portion (3) formed by the web (6) is coiled continuously around the central portion (2) in order to form a spiral. A second resin mechanically binds the multiple layers of the spiraled web (6) and bonds the peripheral portion (3) to the central portion (2).

The invention provides a long-life restoration for oral micro-ecological regulation and an intelligent preparation method and device thereof. The preparation method comprises the following steps: collecting oral micro-ecological medical data of a patient, combining high-precision three-dimensional morphology feature extraction of the restoration, performing multi-modal data deep fusion and feature mining, and utilizing a multi-physics coupling AI design engine to construct a bionic micro-nano texture topological configuration with a specific function; a graded micro-nano composite structure is constructed on the surface of the restoration in situ by adopting an ultrafast laser micro-nano machining system, and the surface wettability is controllably converted from hydrophilic to super-hydrophobic through cooperative regulation and control of the surface wettability, hydrophilicity and hydrophobicity. The prepared prosthesis integrates the functions of passively inhibiting bacteria from being adsorbed on the surface of the prosthesis, preventing gingival atrophy, guiding periodontal tissue regeneration and the like, and the long-life dental prosthesis with the bionic micro-nano texture generated by the AI is obtained. The bionic micro-nano texture manufactured by the invention has excellent mechanical properties and the functions of passive bacteriostasis, damage resistance, gum fixation and the like.

The present invention relates to a novel dental prosthetic material and a patient-customized dental prosthesis comprising same, the material improving water resistance, reproducing a color similar to an actual tooth, and thus improving the aesthetic appearance even after prosthetic treatment. In addition, patient-customized prosthetic treatment can be performed using a 3D printer on a tooth requiring prosthetic treatment. The material exhibits enhanced physical properties compared to existing photocurable resin compositions and has excellent adhesive strength, thereby preventing a dental prosthesis from detaching after treatment.

Disclosed are example embodiments of methods and systems for automatically coloring a dental prosthesis. One of the systems includes: a memory configured to store a computer-aided manufacturing (CAM) file of the dental prosthesis; a holding apparatus for securing the dental prosthesis; one or more outlets for dispensing coloring fluid; an coloring fluid controller configured to control the one or more outlets to dispense coloring fluid at a preset size and frequency based at least on the CAM file; and a motion controller configured to move the holding apparatus or the one or more outlets based at least on the CAM file.