182 results about "Dental prosthesis" patented technology

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.

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.

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.

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.

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 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.

To provide a dental glass ionomer cement composition that exhibits little stringiness of mixed material, becomes soon after completion of mixing in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent mixability and mechanical characteristic.To provide a dental glass ionomer cement composition comprising (a) acid-reactive glass powder, (b) polyalkenoic acid, (c) water, and (d) porous inorganic filler: 0.075% by mass or more and 15% by mass or less, wherein the center portion of the (d) porous inorganic filler is an inorganic particle consisting of only silicon dioxide or consisting of silicon dioxide and an oxide containing one or more metal elements.

This application relates to the field of dental prosthesis processing technology, and provides a zirconia dental prosthesis forming apparatus, including an apparatus housing. The apparatus housing is provided with a material preparation unit, a transfer unit, a clamping unit, a cutting unit, and a discharge unit. The material preparation unit includes a material preparation box and a partitioned conveying hinge located inside the material preparation box. The top of the material preparation box is open, and the bottom of the material preparation box has a discharge port for a single dental prosthesis blank to enter. The discharge port is located at one end along the length of the material preparation box. The transfer unit includes a discharge track located below the discharge port and a spacer distributing mechanism for intercepting the dental prosthesis blanks. The spacer distributing mechanism includes a rotating disk and multiple limiting rods located on the outer circumference of the rotating disk. Adjacent limiting rods form a positioning area for positioning the dental prosthesis blank. The spacer distributing mechanism also includes a positioning component for positioning the rotating disk. Based on this, the various components inside the forming apparatus can have a good mechanical life, thereby maintaining a good mechanical life for the entire forming apparatus.

The present invention relates to a dental implant set, more precisely to a zygomatic dental implant set for in-bone dental implant surgeries of the zygomatic arch via intraoral access. The zygomatic dental implant set (100) comprises an implant pin (10) configured to be anchored in the zygomatic bone; an intermediate connecting member (20) comprising a curved shape; wherein a first end (21) of the intermediate connecting member (20) is configured to be coupled directly or indirectly to the implant pin (10); a first extender (30), wherein the first extender (30) is coupled to a second end (22) of the intermediate connecting member (20); a prosthetic abutment (40), wherein a first end (41) of the prosthetic abutment (40) comprises an outer thread (42), wherein the outer thread (42) of the prosthetic abutment (40) is coupled to a first inner thread (23) of the intermediate connecting member (20); and wherein a second end (43) of the prosthetic abutment (40) is configured to receive a dental prosthesis.

A method of producing a dental restoration (100), including the steps of calculating (S101) a pressure distribution (101) on the oral mucosa (105) through the dental restoration (100) based on a three-dimensional data set (103-DS) of the dental restoration (100) and a three-dimensional data set (103-MS) of the oral mucosa (105); and determining (S102) a spatial region (107) for an elastic production material (109) within the dental restoration (100) based on the calculated pressure distribution (101).

The present invention relates to a connection between a post part provided for being screwed into the jawbone and an associated superstructure part to which a dental prosthesis can be fastened. The connection between the post part and the superstructure part has a rotational self-centering action, wherein at least one of the surfaces provided for this purpose has a friction-minimizing modification and / or coating.

A resin based material whose composition includes a light-curable mixture of monomers of no more than 35 wt. % of an ethoxylated difunctional bisphenol A dimethacrylate; of no more than 10 wt. % of a methacrylate monomer; of no more than 10 wt. % of a difunctional urethane acrylate; of no more than 0.1 wt. % of an optical brightener; of no more than 5 wt. % of silica particles having methacrylate functionalization layers and having an average particle size of less than about 200 nm; of having more than 40 wt. % of an inert glass; of no more than 15 wt. % of a heavy metal oxide; of no more than 2.5 wt. % of an ultraviolet / visible (UV / Vis) light-photo-polymerization initiator; a colorant; and a stabilizer.

The present invention relates to a new method for bonding dental prostheses that suppresses excessive polymerization shrinkage of the photopolymerizable adhesive, prevents bonding defects of dental prostheses, and enables reliable treatment with high patient satisfaction. The method includes the steps of: applying a photopolymerizable adhesive to the inner surface of the dental prosthesis; placing the dental prosthesis on the tooth to be treated and attaching it to the tooth under pressure; removing excess photopolymerizable adhesive from the edges of the dental prosthesis with a brush; and curing the photopolymerizable adhesive by irradiating it with visible light. The curing step includes a primary curing process in which the central portion of the dental prosthesis is irradiated for a first hour with visible light in the active wavelength band range of the photopolymerization initiator contained in the photopolymerizable adhesive, gradually increasing the intensity from a first to a second level; and a secondary curing process in which the central portion of the dental prosthesis is irradiated for a second hour with visible light in the active wavelength band range of the photopolymerization initiator contained in the photopolymerizable adhesive at a third level.

1. Name of the product in this design: Dental Prosthesis Metal Processing Machine. 2. Purpose of this design: For grinding metal dentures. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

Angled abutment (100) for fixing to a dental implant (M) and of a support and anchoring element (A) of a fixed dental prosthesis, and of an assembly kit (20) for coupling the angled abutment (100) with a dental implant (M) outside the mouth of a patient and to enable a subsequent implanting of the dental implant (M) in the mouth of a patient.

The invention relates to a method for determining the internal structure of a dental prosthesis base (24) with at least one blood vessel simulation (30). The method comprises obtaining external shell data which describe an external shell (28) of the dental prosthesis base (24). The method further comprises obtaining blood vessel data which describe at least one blood vessel simulation (30). In addition, the method comprises combining the external 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 (30) within the external shell (28) of the dental prosthesis base (24). The invention also relates to a method for producing a dental prosthesis base (24). The invention further relates to a dental prosthesis base (24) having an external shell (28) and an internal structure, said internal structure being determined by means of said method. Furthermore, the invention relates to a data processing device, to a computer program, and to a computer-readable medium.