111 results about "Dental cast" patented technology

To provide a dental surveyor that enables a user to quickly perform surveying calibration and a surveying method of the dental surveyor.SOLUTION: A shaft center seat 12, a first surveying arm 13, and a second surveying arm 14 are pivotable with respect to one another. The second surveying arm includes a surveyor rod 15. The surveyor rod includes a surveying needle 151 for surveying a denture mold 30. A surveyor table includes a clamp table 21 and an adjustment platform 22. The surveyor table is placed on a platform. The clamp table is used to clamp the denture mold. Angle and direction of the clamp table are changed by the adjustment platform. Three adjustment screws O, P, Q are fixed onto the adjustment platform. By advancement and retreat of the adjustment screws, a height of a corresponding portion of the clamp table is changed, an effect of three-point positioning adjustment on the denture mold is exhibited and the angle of the denture mold is accurately adjusted.SELECTED DRAWING: Figure 6

The invention discloses five-axis laser cutting equipment for dental cast manufacturing, and relates to the field of laser cutting equipment.The five-axis laser cutting equipment comprises an equipment stand, a sliding stand assembled above the equipment stand, transportation equipment and a feeding and discharging manipulator, the positions of the equipment stand, the transportation equipment and the feeding and discharging manipulator are relatively fixed, and a five-axis machine table is erected on the upper end face of the sliding stand in a sliding mode; the sliding stand is used for adjusting the longitudinal position of the five-axis machine table, a portal frame is fixedly arranged on the upper end face of the sliding stand, a fixing frame is slidably assembled on the portal frame, the portal frame is used for adjusting the transverse position and the axial position of the fixing frame, and a laser lens is fixedly erected on the upper end face of the fixing frame. According to the device, smoke generated at the laser cutting position of the dental cast can be effectively sucked and purified through the cooperative effect of the circulating suction unit and the peculiar smell adsorption unit, solid impurities in the smoke can be effectively filtered out through a circulating suction purification mode, peculiar smell of gas in the smoke can be eliminated, and the practicability of the device is improved. Therefore, the air quality in a factory is guaranteed.

Systems and methods for identifying teeth in a patient image are provided. For example, a computer-implemented method can include, by one or more processors, accessing a 2D image including a depiction of a patient's teeth, where a plurality of the depicted patient's teeth are annotated with tooth identifiers according to a first tooth identification scheme. The computer-implemented method can further include transmitting, to a server computing device, the 2D image, and receiving from the server computing device, a second tooth identification scheme for the patient's teeth in the 2D image. The second tooth identification scheme can be generated by accessing a 3D model of the patient's teeth, projecting the 3D model onto the 2D image, comparing the projection to the 2D image to determine a probability parameter for each of one or more teeth in the 2D image, and determining, based on the probability parameters, the second tooth identification scheme.

The embodiment of the utility model provides a shell-shaped appliance, an orthodontic system and a dental model, and solves the problem of stress concentration of an occlusal surface when a convex part is provided with a reinforcing ridge in a counterpoint manner. The shell-shaped appliance comprises a shell-shaped body used for containing teeth, the shell-shaped body is of an integrally-formed structure, and the shell-shaped body is provided with a first protruding part for reconstructing the occlusal position of the upper jaw and the lower jaw in a protruding mode in the occlusal direction of a rear tooth area. The cheek side face of the first protruding part is provided with a first reinforcing ridge for improving the deformation resistance of the first protruding part, the cheek side face of the first protruding part is concaved inwards to form the first reinforcing ridge, and the tongue side face of the first protruding part is provided with a second reinforcing ridge for improving the deformation resistance of the first protruding part. The tongue side face of the first protruding part is concaved inwards to form the second reinforcing ridge, and at least two adjacent first reinforcing ridges and second reinforcing ridges are arranged in a staggered mode in the buccal tongue direction.

The invention provides a three-dimensional tooth model display method and device, an oral cavity scanner and a storage medium, and relates to the technical field of oral cavity scanning. The method comprises the following steps: acquiring a first point cloud of a standard dental cast and a second point cloud of a to-be-corrected display dental cast, and establishing a global coordinate system of the first point cloud and a global coordinate system of the second point cloud; using the first point cloud, the second point cloud, the global coordinate system of the first point cloud and the global coordinate system of the second point cloud to establish a shape curve of the to-be-corrected display dental cast; based on the shape curve of the to-be-straightened display dental cast, determining a focus, a viewpoint and an upward direction when the to-be-straightened display dental cast is straightened under a display visual angle set by a user; according to the method, the to-be-adjusted display dental cast is displayed according to the focus, the viewpoint and the upper direction of the to-be-adjusted display dental cast during adjustment, so that the dental cast is displayed quickly and objectively, and a user can master details of teeth more accurately.

The utility model relates to the technical field of dental model trays, in particular to a dental model tray which comprises two supporting plates which are bilaterally symmetrical, a fixing block is mounted on the right side of the upper side of the left side supporting plate; the same fixing block is arranged on the left side of the upper side of the right side supporting plate; a connecting rod is mounted between the two fixing blocks; all the mechanisms mounted on the two supporting plates are the same; a rotating mechanism is mounted on the upper side of the supporting plate, and a dental cast disc I is mounted on the upper side of the rotating mechanism; dental cast plates II are symmetrically mounted on the front side of the dental cast plate I; when the rotating mechanism needs to be used, the bolt is unscrewed, then the two rotating plates can be rotated, the two rotating plates drive the first dental cast disc and the second dental cast disc to move respectively, then the distance between the two dental cast discs is changed, the oral cavity of a user can be adjusted in a matched mode, and the problem that the dental cast discs are poor in adaptability is solved.

The application provides a combined device of an accessory and a shell-shaped appliance and a manufacturing method thereof, the accessory comprises a tooth accessory fixed on a tooth surface and a dental model accessory fixed on a dental model, the tooth accessory is smaller than the dental model accessory, the occlusal surface of the dental model accessory forms different degrees of occlusal contact with the opposite teeth, so that the shell-shaped appliance generated based on the dental model with the dental model accessory fixed thereon can enhance the seating by using the occlusal force, there is a gap between the occlusal surface of the dental model accessory and the introduction surface of the tooth accessory, so that there is a gap between the accessory cavity of the shell-shaped appliance and the tooth accessory, the appliance has a larger surface area and better elastic performance in the accessory part, which is beneficial to enhance the seating and express the correction force, in addition, the occlusal surface of the dental model accessory can also be designed to have the functions of lifting the occlusion and leading the lower jaw.

1. The name of the design product: dental mold packaging box (3). 2. The use of the design product: for containing dental mold. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The present invention relates to a fixator (10) for fixing a first tooth model (52) and a second tooth model (54), wherein the fixator (10) has a first fixator-side guide element (28) and a second fixator-side guide element (30), both of which extend in a longitudinal direction (12) of the fixator (10), wherein the first fixator-side guide element (28) can be coupled to a first model-side guide element (62) of the first tooth model (52) and the second fixator-side guide element (30) can be coupled to a second model-side guide element (64) of the second tooth model (54), wherein the first fixator-side guide element (28) is configured to guide the first model-side guide element (62) in the longitudinal direction (12) when the first fixator-side guide element (28) is coupled to the first model-side guide element (62), and wherein the second fixator-side guide element (30) is configured toto guide the second model-side guide element (64) in the longitudinal direction (12) when the second fixator-side guide element (30) is coupled to the second model-side guide element (64). Furthermore, the present invention relates to a system (50). Furthermore, the present invention relates to a method (100) for fixing a first dental model (52) and a second dental model (54) by means of at least one fixator (10).

The invention relates to the technical field of oral cavity rehabilitation auxiliary instruments, in particular to an oral cavity rehabilitation auxiliary retainer for tooth implantation, which comprises two groups of fixing frames, an upper dental model and a lower dental model which rotate in the two groups of fixing frames, the upper dental model is located on the upper side of the lower dental model, and an adjusting assembly is arranged in each fixing frame. The adjusting assembly comprises a movable groove, a first rotating shaft, a ratchet wheel, a second rotating shaft, a torsion spring and a movable plate. Through the arrangement of the adjusting assembly, the angle of the upper dental cast and the angle of the lower dental cast can be adjusted, in the actual use process, the auxiliary retainer can be adjusted according to the size of the oral cavity of a patient so that the auxiliary retainer can be suitable for different types of patients, and meanwhile when the retainer is adjusted to the proper angle, the angle of the upper dental cast and the angle of the lower dental cast can be adjusted. The user cannot change the angle through the occlusal force of the mouth, so that the user can conveniently observe the interior of the oral cavity of the patient, and the user can more smoothly carry out the oral rehabilitation process.

The graphical user interface (GUI) displays the patient's oral health report through different modules including a 3D oral model, dental model coloring, orthodontic bite comparison, oral diagnostic information, and pictorial display of oral diagnostic information. The user can scroll or click to browse the GUI. Figure 3.2 is for reference purposes only and does not form part of the design sought to be registered. The gray rectangular color block with the diagonal cross in Figure 3.1 merely indicates pressed content and does not form part of the design sought to be registered. The "X" in the figure represents a variable number and / or letter and / or symbol. 3.1) Front View; 3.2) Reference View

Provided are a method for generating a dental crown model and a system for generating a dental crown model. The method for generating a dental crown model comprises: retrieving preset tooth model data according to a target position of a tooth to be treated, wherein the preset tooth model data comprises a plurality of geometrical features; adjusting a preset tooth model by using a plurality of tooth model parameters to obtain adjusted geometrical features; give scores of the matching degree between the adjusted feature points and a plurality of conditional operations; performing weighted operation on the scores to obtain a false tooth score; if the false tooth score is less than a threshold score, inputting the false tooth score into an artificial intelligence unit for parameter correction to obtain a plurality of new tooth model parameters, and continuing adjustment until the false tooth score is greater than the threshold score; and using a tooth model corresponding to final parameters as a dental crown model of a patient.

The utility model discloses a dental model collet which is used for bearing a dental model, a bearing surface of the dental model collet for bearing the dental model is provided with a plurality of groove structures, and a membrane is pressed into the groove structures through openings of the groove structures during hot pressing of the membrane so as to limit the membrane from being separated from the dental model collet; wherein the groove structure is located in a space defined by the edge of the bearing surface and the edge of the bottom surface of the dental model and is arranged at a preset distance from the edge of the bottom surface of the dental model. The groove structure is arranged in the space defined by the edge of the bearing surface of the collet of the dental model and the edge of the bottom surface of the dental model, and the preset distance is formed between the groove structure and the edge of the bottom surface of the dental model, so that a part of a membrane can be pressed into the groove structure in a membrane hot-pressing process, and the membrane subjected to membrane pressing cannot be separated from the collet of the dental model; and the pressed film wrapping effect of the tooth jaw model is improved.

The embodiment of the invention relates to the field of tooth orthodontics, and discloses a dental cast optimization method, a dental cast, electronic equipment and a computer readable storage medium. According to the method, firstly, topological optimization is carried out on a solid dental model grid to obtain a hollow dental model grid, then pressed film finite element simulation is carried out on the hollow dental model grid, and personalized stress distribution of the dental model grids of different structures is obtained according to pressed film finite element simulation results. Then selecting two points with the maximum stress below the lowest point of the gingival line of each tooth as supporting points, and finally determining the position and direction of the supporting structure according to the two supporting points. Due to the fact that the structures of different dental cast grids are different, the stress distribution of the different dental cast grids is different, and the positions and the directions of the added supporting structures are different, the positions and the directions of the added supporting structures are determined by obtaining the stress distribution of each dental cast grid. The supporting structure added in the final target dental cast grid can be most suitable for the current dental cast grid.

1. The name of the design product: dental mold packaging box (2). 2. The use of the design product: for containing dental mold. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.

The application provides a digital oral model mark point recognition method and device and electronic equipment, and the method comprises the following steps: step 1, inputting dental arch model image data, segmenting the dental crown of the dental arch model, and recognizing the tooth position number of the dental crown, wherein the dental arch model comprises a gum and dental crowns of different tooth positions. Step 2, based on automatic recognition of the dental crown mark point of a single dental crown, for each segmented dental crown, the multi-view graph network is used to automatically recognize the dental model mark point, and the mark point on each dental crown is obtained. The method of the application does not predict the mark point on the three-dimensional point cloud, but maps the three-dimensional data into two-dimensional projection image data, and calculates by using a two-dimensional network, so that the calculation amount and the dependence on the computing power can be reduced compared with a three-dimensional network.

The present application provides a dental mold cleaning device and method, which includes: a cleaning frame for placing the dental mold; at least one detergent cleaning mechanism for cleaning the dental mold in the cleaning frame with detergent; at least one clean water cleaning mechanism for cleaning the dental mold in the cleaning frame with clean water; a drying mechanism for drying the dental mold in the cleaning frame; a workpiece lifting and transverse movement mechanism connected to the cleaning frame, the cleaning frame being driven by the workpiece lifting and transverse movement mechanism to sequentially enter the detergent cleaning mechanism and the clean water cleaning mechanism, and finally enter the drying mechanism; and a detergent circulation mechanism connected to the detergent cleaning mechanism and used to circulate and filter the detergent in the detergent cleaning mechanism. The device aims to solve the technical problems of low production efficiency, poor cleaning quality stability, and a cleaning environment that is harmful to human health in the existing manual cleaning technology.

A production system and method of dental instrument. After constructing a digital three-dimensional (3D) model of patient's teeth, pre-processing operations, comprising identifying gum lines on the digital 3D model and adding identifier information to the digital 3D model, are performed on the digital 3D model, and 3D printing is performed on the basis of the identifier information of the digital 3D model to obtain a first dental mold; and a film press processing is performed according to the first dental mold to obtain a second dental mold, identifier identification is performed on the second dental mold, and the identifier information is marked on the second dental mold according to the identification result to obtain a dental appliance. The production system and method are applied to the technical field of dental appliance production.

The embodiment of the invention provides a water-based environment-friendly cleaning solution for a 3D printing dental cast as well as a preparation method and application of the water-based environment-friendly cleaning solution. The water-based environment-friendly cleaning solution for the 3D printing dental cast is prepared from the following components in percentage by mass: 70 to 90 percent of deionized water, 10 to 25 percent of organic solvent complex liquid, 1.5 to 6.5 percent of surfactant, 1.1 to 2.7 percent of pH buffer agent, 1 to 5 percent of zirconium oxide nano particles and 0.05 to 0.5 percent of stabilizer. The water-based environment-friendly cleaning fluid for the 3D printing dental cast has efficient cleaning capacity, the single-time cleaning amount can reach 75 dental cast / L, a good cleaning effect can still be kept after the cleaning fluid is recycled for 10 times, and it can be guaranteed that the dental cast does not have the swelling deformation problem. The flash point of the water-based environment-friendly cleaning fluid for the 3D printing dental cast is larger than 100 DEG C, flammable and explosive risks do not exist, the VOC emission amount is lower than 50 g / L, environmental protection laws and regulations are met, in addition, the cost is low, and large-scale production and application are convenient.

The present application provides a dental model, a dental model set, a shell-shaped tooth appliance and a preparation method thereof. The dental model comprises a base. The geometry of the base is configured such that the average height from the bottom surface to the point on the sagittal plane where the highest cusp point of each tooth in the tooth model of the posterior tooth region on one side is projected is greater than the average height from the bottom surface to the point on the sagittal plane where the highest cusp point of each tooth in the tooth model of the posterior tooth region on the other side is projected. This configuration ensures that the thickness of the two shell-shaped tooth appliances obtained by pressing the two shell-shaped tooth appliances using the same film at the same time is substantially the same, thereby improving the preparation efficiency, reducing the production cost, and ensuring the correction effect of the shell-shaped tooth appliance.

A dental implant-retained record base device and methods of fabricating thereof are provided, and a method for obtaining an interocclusal record. The method involves inserting an impression post into a dental implant in a partially-dentate patient and capturing a dental impression to obtain a dental cast inclusive of the impression post. A light-curable resin is molded into a cubic shape and subsequently attached to the dental cast at position of the impression post. Upon exposure to visible light, the resin is cured to form a record base device, which is then adjusted to facilitate the positioning of interocclusal record material. The dental implant-retained device constructed from the light-cured resin is configured for attachment to the dental implant for obtaining the interocclusal record for the patient.

The invention discloses a simple planting half-way guide plate, and relates to the technical field of medical auxiliary instruments, the simple planting half-way guide plate comprises a fixing part and a guide part located in the middle of the fixing part, a first drill is guided to serve as a pioneer drill through a guide ring, a correct position and direction are established for subsequent planting, reaming and planting work is guided, and ideal vertical performance is guaranteed; gingival shaping is carried out according to temporary resin teeth of a final prosthesis position form designed by an operator before an operation, final teeth are worn after three months, and formal ceramic teeth can be directly cut according to the form designed by a computer before three months and are directly worn by a patient, so that the gingival penetration outline is consistent, and the patient does not feel painful when wearing the teeth; the step of taking the dental model once and the frequency of going to hospital and seeing a doctor are reduced, and the effect of reducing the tooth making period is finally achieved.

The application discloses a five-axis laser cutting equipment for dental mold manufacturing and relates to the field of laser cutting equipment, which comprises an equipment rack, a sliding rack, conveying equipment and a feeding and discharging manipulator, wherein the three are relatively fixed in position, the upper end surface of the sliding rack is slidably provided with a five-axis machine table, the sliding rack is used for adjusting the longitudinal position of the five-axis machine table, the upper end surface of the sliding rack is fixedly provided with a portal frame, the portal frame is slidably provided with a fixing frame, the portal frame is used for adjusting the transverse position and the axial position of the fixing frame, and the upper end surface of the fixing frame is fixedly provided with a laser lens, the cooperation of the circulating suction unit and the peculiar smell adsorption unit can effectively suck and purify the smoke generated during the laser cutting of the dental mold, the circulating suction and purification mode can effectively filter the solid impurities in the smoke, the peculiar smell of the gas in the smoke can be eliminated, and therefore, the air quality in the factory is ensured.

The present invention relates to a method and system for automatically cropping oral scanned dental models to extract regions of interest, comprising: step S1: converting batch mesh training data mesh1 into voxel data volum1; step S2: cropping mesh1 in step S1 by extending 3 units downward from the lowest point of the tooth crown, and filling holes in the corresponding cropped mesh data mesh2, traversing each voxel point in step S1, and setting the label value of the voxel point located inside or on the surface of mesh2 to 1; step S3: performing network training on the data processed by steps S1 and S2; and step S4: inferring the new mesh data mesh3. The method and system for automatically cropping oral scanned dental models to extract regions of interest automatically crop the oral scanned dental models through AI learning results, extract regions of interest, perform automatic cropping, and eliminate redundant regions of the initial dental model, thereby effectively improving the efficiency of tooth segmentation and tooth arrangement.

The invention discloses ceramic slurry for 3D printing of a dental crown and a preparation method of the ceramic slurry. The ceramic slurry comprises the following components: photosensitive resin, a diluent, a dispersing agent, a defoaming agent, a photoinitiator and ceramic powder, the preparation method comprises the following steps: S1, firstly, adjusting a mixing environment, and adjusting the mixing temperature to 30-40 DEG C; uniformly stirring photosensitive resin, a photoinitiator and a diluent at a high speed in a dark place, and mixing to obtain a photosensitive resin system; s3, adding ceramic powder, a dispersing agent and an auxiliary agent into the photosensitive resin system, dispersing to obtain slurry, and finishing printing of a dental implant biscuit under the control of forming software; s8, performing drying, degreasing and high-temperature sintering on the biscuit to obtain the dental crown implant; a dental crown ceramic green body formed by 3D printing of the ceramic slurry has very high hardness, the green body precision is high, and the printing success rate is high. The internal grain size is reconstructed through a degreasing and sintering thermal reaction, and the degreased and sintered ceramic dental crown can be accurately worn on a dental cast.

This invention discloses a system and method for controlling the placement of a 3D printing tray for dental models, belonging to the field of dental instrument manufacturing technology. The system includes a deviation detection device, a force application device, and a control device. The deviation detection device detects a deviation at a first position on the printing platform; the force application device applies a control force to a second position on the tray corresponding to the first position; and the control device controls the sequence and magnitude of the control force applied by the force application device to the second position on the tray based on the deviation value at the first position. The method is implemented based on the corresponding system. The control device of this invention controls how the force application device applies control force to the tray based on the deviation value of the printing platform detected by the deviation detection device, thereby reducing the instantaneous impact of the tray on the printing platform. This ensures that after the tray is installed on the printing platform, the deviation of the printing platform is within the required range, guaranteeing the quality of the dental model printing.

The invention discloses an automatic pick-and-place manipulator for dental cast processing, and relates to the field of manipulators, the automatic pick-and-place manipulator comprises a processing platform and a manipulator body mounted at the top of the processing platform, a pick-up frame and a discharge box are fixedly mounted at the top of the processing platform, and a pick-up disc is mounted at the end of the manipulator body; a plurality of vacuum suction cups are arranged on the inner side of the material taking disc. The device further comprises a material taking mechanism used for grabbing the uneven dental cast, the material taking mechanism is installed on the inner side of the material taking disc, the material taking mechanism comprises an installation cylinder arranged on the outer side of the vacuum suction cup, and the installation cylinder can make the vacuum suction cup abut against the outer side of the dental cast in a multi-angle mode; through the material taking mechanism, the vacuum suction cup can abut against the outer side of the dental cast through a rubber sheet, multi-angle swinging can be conducted according to the surface of the dental cast, the vacuum suction cup can conveniently adsorb the uneven dental cast, and therefore the effect of rapidly grabbing the dental cast is achieved.