382 results about "Dentures" patented technology

The invention discloses a digital dental implant bridge and false tooth and false tooth automatic adaptation and production system based on CBCT (cone beam computed tomography) and oral scanning data and a control method thereof, which are used for realizing automatic design, adaptation and production of a dental implant bridge and false teeth and false teeth and fusing the CBCT data and the oral scanning data to generate a three-dimensional oral cavity digital model. An automatic modeling technology based on deep learning is used for analyzing the occlusion relation, the adjacent tooth form and the implant angle of a patient, and an implant tooth bridge and false teeth are automatically designed to obtain a three-dimensional model of the prosthesis. A computer vision technology or a three-dimensional scanning technology is adopted to detect the consistency of the size and shape of a produced finished product and the three-dimensional model; and digital try-on is performed through an augmented reality (AR) technology, so that rapid adjustment of various parameters of the product is realized.

The invention relates to the field of manipulators, in particular to a mechanical transfer mechanism for false tooth production and processing and a method thereof.The mechanical transfer mechanism comprises a clamping mechanism used for rapidly clamping a whole set of false teeth and teeth; the driving rotary table is used for carrying out circumferential transfer treatment on the false teeth; the top of the driving rotary table is fixedly connected with a big arm, the outer side of the big arm is fixedly connected with a small arm, and the driving rotary table, the big arm and the small arm work together, so that the false tooth can be transferred in all directions; wherein the clamping mechanism comprises a connecting V-shaped frame, and the round face end of the connecting V-shaped frame is fixedly connected with the small arm. According to the mechanical transfer mechanism for false tooth production and processing and the method thereof, the large arm and the small arm are driven to deflect, so that the clamping mechanism is located on the same horizontal plane as a false tooth; at the moment, the false tooth is located in a blank position between the clamping assembly and the inner clamping sleeve, and therefore the preliminary preparation effect on subsequent false tooth clamping is achieved.

The invention relates to the technical field of oral implantation guidance, and provides a digital false tooth mounting and positioning device based on three-dimensional scanning and a method thereof. The method comprises the following steps: scanning the oral cavity of a patient through an oral cavity scanner to generate a three-dimensional oral cavity digital model; generating a virtual implant of the patient and corresponding initial implantation parameters based on the three-dimensional oral cavity digital model through a SegFormer segmentation network; based on historical operation data, initial implantation parameters, bone density, patient attributes and occlusal force parameters, a long sequence prediction network is adopted to predict the position offset and bone resorption degree of the virtual implant after osseointegration through a segmented attention mechanism and a network memory cache mechanism, and optimal implantation parameters are obtained; and pushing a visual dynamic model containing the candidate positioning strategy to the user based on the optimal implantation parameter, driving an oral cavity model printer to obtain an implantation guide plate model and an oral cavity environment model, assisting the user in verifying the installation effect of the candidate positioning strategy, and improving the accuracy of false tooth installation and positioning.

The utility model discloses a false tooth with an anti-loosening structure, which comprises a false tooth, and the false tooth is assembled on a gum through the anti-loosening structure; the anti-falling structure comprises a mounting rod, a mounting block and a connecting block, three first planting grooves in threaded connection with the mounting rod are formed in the top of the gum, a clamping cap is mounted at the top end of the mounting rod, a connecting cylinder is mounted in the mounting block, a through hole communicated with the connecting cylinder is formed in the bottom of the mounting block, and the through hole corresponds to the clamping cap in position. A spring is placed in a cavity formed between the outer side of the connecting cylinder and the mounting block, an arc-shaped clamping groove in extrusion contact with the spring is formed in the outer side of the clamping cap, and inserting rods are symmetrically mounted at the top end of the connecting block. The mounting rod and the inserting rod are respectively fixed on the gum and the false tooth of a patient, parts are simple and convenient to replace subsequently, the false tooth is pressed during use, the clamping cap is stressed to extrude the spring, and the spring is clamped on the outer side of the clamping cap, so that the gum and the false tooth of the patient can be quickly fixed, and the false tooth cannot fall off during daily chewing.

The invention provides a digital complete denture manufacturing method which comprises the following steps: designing a personalized tooth test tray with exposed anterior teeth on the basis of surface scanning and an impression, then wearing the personalized tooth test tray to manufacture a closed impression, determining a vertical and horizontal jaw position relationship, and then precisely machining a complete denture by adopting a digital method. By adopting the method provided by the invention, the patient can wear a pair of closely-attached and comfortable complete dentures when seeing a doctor for the third time. The whole-process digital processing method is adopted, clinical operation is more standard and consistent, the comfort level of a patient is improved, and the processing time and difficulty are greatly reduced.

The invention relates to the technical field of false tooth production, and discloses a disinfection and sterilization device for false tooth production, the disinfection and sterilization device comprises a shell, a door body, ultraviolet lamps and a grid, basic irradiation is performed through the ultraviolet lamp I and the ultraviolet lamp II, an air cylinder is driven to move transversely through an electric push rod, and meshing of a gear and a rack is combined; a first reflecting block and a second reflecting block are driven to penetrate through a grid to jack up the false teeth through inclined surface transmission of a pushing block and a driven plate by a jacking component, and a reflecting plate is matched to reflect ultraviolet rays, so that bottom shielding dead angles are eliminated, and multi-directional disinfection of the false teeth is realized; the method is suitable for batch production, and the sterilization efficiency and the quality stability are improved.

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 utility model discloses an anti-loosening telescopic crown denture, and relates to the field of dentures, the anti-loosening telescopic crown denture comprises a tooth body, a connecting assembly mounted on the tooth body, a clamping assembly clamped on the connecting assembly and a denture mounted on the clamping assembly, the connecting assembly comprises a clamping seat fixedly connected to the tooth body, and a through groove is formed in the outer wall of one side of the clamping seat; and a mounting cavity is formed in the clamping seat, an opening is formed in the inner wall of one side of the mounting cavity, the inner wall of the opening is slidably connected with an L-shaped connecting seat, the inner walls of the two sides of the mounting cavity are rotatably connected with the same two-way screw rod, and the outer wall of the two-way screw rod is in threaded connection with two symmetrically-arranged threaded sleeves. The connecting assembly is arranged on the tooth body, the clamping assembly is arranged on the false tooth, and the clamping assembly is matched with the connecting assembly, so that the false tooth is conveniently fixed, meanwhile, an adjustable L-shaped connecting seat in the connecting assembly is convenient for tensioning a clamping seat, and the problem of loosening of the false tooth is effectively avoided.

Disclosed herein is a curable composition that can contain a high crosslinker content and cure to form a tough and color neutral material that can be effectively used for a wide range of dental applications. In various embodiments, the compositions and / or polymers resulting therefrom may be used in dental appliances, including, but not limited to, orthodontics, accessory placement devices, incremental palate dilaters, dentures, crowns, and the like.

The disclosed technology provides for setting up teeth, such as dentures and dental appliances, based on motion data. A method can include receiving, by a computing system, a digital representation of the patient's jaw movement, receiving a digital model of at least a portion of the patient's upper and lower teeth, receiving user input indicating selection of at least a first tooth in the digital model as moveable, at least a second tooth as fixed, and at least a third tooth as ignored, moving the at least portion of the upper teeth and the lower teeth along movement pathways indicated by the digital representation of jaw movement, and automatically adjusting a position of the selected first tooth based on detecting the position of the selected at least first tooth as colliding or interfering with one or more other teeth represented by the digital model along one of the movement pathways.

The utility model relates to the technical field of dentures, and specifically to a denture structure that is easy to disassemble, comprising an implant, a denture body and a disassembly mechanism, wherein the disassembly mechanism comprises a plurality of fixing components, a mounting column, a mounting plate and a stabilizing component, the implant body has a mounting groove, the fixing component comprises a pressure kit and a pressing plate, the mounting column has an external thread, the pressing plate has an internal thread, the denture body is detachably connected to the top of the implant, a plurality of fixing components are arranged on the implant and are located in the mounting groove, the pressure kit is arranged between the pressing plate and the implant, the external thread is threadedly connected to the internal thread, the mounting plate is fixedly connected to the mounting column and is located above the mounting plate, the denture body is fixedly connected to the mounting plate, the stabilizing component is arranged between the mounting plate and the implant, when disassembling and assembling the denture body, the mounting plate is rotated, and the mounting column is taken out of the mounting groove by rotating the thread, the process of disassembling and installing the denture body is simple, and the workload of maintenance personnel is reduced.

1. The name of the design product: false tooth ultrasonic cleaning machine (ZX-535Pro). 2. The use of the design product: the design product is used for ultrasonic cleaning of false teeth. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to the technical field of oral cavity evaluation, and discloses a method, a device and a system for evaluating the edge adaptation of a fixed denture and a storage medium, the method for evaluating the edge adaptation of the fixed denture comprises the following steps: S1, acquiring multi-modal image data of a contact area of the denture and an abutment; s2, carrying out image denoising on the multi-modal image data; s3, edge detection and gap analysis are carried out on the image data after image denoising processing, and a gap distribution diagram is obtained; s4, evaluating a scoring standard of the gap distribution diagram to obtain a cloth tightness distribution diagram; and S5, superposing the adaptation distribution map into a real environment through an augmented reality technology. According to the method, the multi-dimensional data, the dynamic scoring model and the augmented reality interaction technology are fused, high-precision and high-efficiency fixed denture edge adaptation evaluation is realized, multi-material dynamic adaptation and complex environment anti-interference capability are integrated, and three-dimensional quantitative decision support is provided for clinic.

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.

The invention relates to the technical field of complete dentures, and discloses a CAD / CAM (computer-aided design / computer-aided manufacturing) fixed structure rod clamp complete denture and a preparation method thereof. Obtaining an oral cavity three-dimensional model of the user based on optical measurement; preparing an impression for the user based on a preset material; obtaining a three-dimensional digital model of the impression based on scanning equipment, comparing the three-dimensional digital model with the oral cavity three-dimensional model to obtain a fine calibration model, determining the setting position of the fixed structure rod clamp in the fixed structure rod clamp complete denture by adopting CAD according to the fine calibration model, and obtaining scheme data; the scheme is transmitted to a numerical control machine tool, a fixed structure rod clamp is manufactured based on CAM, the fixed structure rod clamp and a base plate are assembled, and the fixed structure rod clamp complete denture is obtained. The arrangement position of the fixing structure rod clamp is optimized by adopting CAD according to the precise calibration model, so that the fixing structure rod clamp better conforms to the oral cavity anatomical structure of a patient, and the retention force and the comfort degree of the false tooth are improved.

Provided are a lithium disilicate glass-ceramic green body, a preparation method therefor, and a use thereof. The lithium disilicate glass-ceramic green body comprises a lithium disilicate main crystal phase, crystal size in the lithium disilicate glass-ceramic blank being between 50 and 400 nm, and the proportion of the area of crystal grains having a length greater than 350 nm to the total area being less than 30%. The present disclosure, by means of controlling the internal crystal size of the lithium disilicate glass-ceramic green body to be below 400 nm, enables same to be directly machined without damaging the machining equipment, and combines the advantages of high strength, machinability and direct coloration. This can reduce the waiting time for patients to receive dental restorations, solve the problem of patients being unable to know the color of all-ceramic dentures before fabrication, and overcome a bottleneck for all-ceramic denture restoration materials for same-day delivery. It has great significance for achieving preoperative color matching and rapid restoration in clinical practice.

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.

The present invention discloses a disinfection device and a disinfection method for detachable dentures, and relates to the technical field of denture disinfection, including a disinfection box, a plurality of disinfection chambers are opened inside the disinfection box, and a positioning plate is installed inside the disinfection chamber, and a drive frame is installed on both sides of the upper side of the positioning plate inside the disinfection chamber; a plurality of through grooves are opened inside the positioning plate; a denture placement rack, a plurality of placement grooves are opened inside the denture placement rack, and both ends of the denture placement rack are connected to the drive rack in the corresponding direction through a group of elastic assemblies; a plurality of bottom belts are installed inside the placement groove, and the distribution position of each through groove corresponds to the distribution position of each placement groove. When the present invention uses ultraviolet rays or ozone to disinfect dentures, each denture can be placed separately through the denture placement rack to avoid the problem of cross infection, and the depth of each placement groove can be adjusted when taking and disinfecting the denture.

The utility model relates to the technical field of false tooth processing, and discloses a multi-angle lighting device for false tooth processing, the multi-angle lighting device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a stand column, and an electric telescopic rod is arranged in the stand column. According to the multi-angle lighting device for false tooth processing, by arranging an electric telescopic rod, the height of a lamp can be automatically adjusted, a gear ring is driven by a first gear to rotate, the angle of the lamp can be automatically adjusted, a rack is driven by a second gear to move, and the position of the lamp can be automatically adjusted; the manual adjustment of the lighting device is avoided, the manpower is saved, the working efficiency is improved, and the rocking rods corresponding to the electric telescopic rod, the first motor and the second motor are arranged on the bottom plate, so that a user can conveniently process false teeth and can adjust and control the lighting device by controlling the rocking rods through the feet; the problems that an existing denture processing lighting device is strenuous to adjust, and adjustment operation cannot be carried out while operation is carried out are solved.

The present application relates to the technical field of biomedical materials, and discloses a biological activity and biocompatibility surface treatment method for dentures and implants, which comprises the following steps: a) performing surface pretreatment on the base body of the denture or implant; b) applying a composite coating containing hydroxyapatite particles and biocompatible resin adhesive on the surface of the pretreated base body; c) performing low-temperature thermal curing on the composite coating to form a composite coating layer; and d) performing precision polishing on the surface of the cured composite coating layer to selectively remove part of the resin adhesive on the surface. Through mechanical locking of the base body surface and chemical combination of the interface inside the coating, a composite coating layer which is firmly combined with the base body and chemically stable is obtained; meanwhile, through low-temperature curing and surface activation treatment, the hydroxyapatite is exposed on the surface of the coating layer while the biological activity of the hydroxyapatite is retained, so that the coating layer is endowed with effective biological functions.

A toothbrush product for cleaning the exposed mesial or distal surface of a tooth or denture, comprising: an elongated member (22) comprising a front end and a rear end, wherein the elongated member comprises a handle (20) and the elongated member extends in a longitudinal direction from the front end to the rear end; a head (50), wherein the head (50) comprises a plurality of tufts of bristles provided at a front surface and / or a rear surface of the head (50); and at least one support member (40) for the head (50) provided at the front end of the elongated member (22), wherein the at least one support member (40) has a shape for supporting the head (50) at a lateral distance from the elongated member (22), wherein the at least one support member (40) comprises a laterally extending proximal portion and a laterally extending distal portion to provide a gap across the lateral distance between the front end of the elongated member (22) and the head (50), at least a portion of the support member (40) extending in the lateral direction away from the front end of the elongated member (22) such that the gap is substantially within a lateral plane.

This invention discloses a modular denture with adjustable installation height, comprising an installation base with multiple installation cavities at the top and multiple positioning slots at the bottom; multiple dentures are movably fitted into their respective installation cavities, with their roots movable vertically within the cavities; and a lifting drive mechanism, embedded in each installation cavity, for independently driving the corresponding denture for height adjustment; the lifting drive mechanism includes: an adjusting shaft horizontally rotatable inside the installation base, one end of which extends out of the side wall of the installation base to form an operating end; and a driven shaft vertically rotatable within the installation cavity; when the adjusting shaft rotates, it drives the driven shaft and lead screw to rotate via a bevel gear transmission mechanism, causing the threaded slider and dentures to rise and fall vertically, thereby achieving denture height adjustment. This invention solves the problem that most existing dentures use a fixed connection with the base, making it difficult to adjust the height after installation and to personalize the adjustment according to the actual height of the patient's natural teeth.

The utility model discloses a movable support, which relates to the field of oral cavity restoration technology, and comprises a connecting body, gums are fixedly arranged on both sides of the connecting body, tooth hooks are fixedly arranged on both sides of each gums, and false teeth are fixedly arranged on the upper parts of the gums. The problems that accurate correction cannot be achieved according to the tooth shape and the oral cavity structure, and discomfort, chewing force reduction or unstable wearing and other conditions can be reduced when people wear the oral cavity correction device are solved.

The invention belongs to the field of three-dimensional scanning, and particularly relates to a false tooth three-dimensional scanner and an overturning clamp thereof.The false tooth three-dimensional scanner comprises a bottom support, a side support is rotationally connected to one side of the bottom support, a first scanner is arranged in the side support, and side supporting arms are rotationally connected to the two sides of the side support; an auxiliary scanner is fixedly arranged at one end of each side supporting arm, a placement circular truncated cone is rotationally arranged at the position, above the bottom support, of one side of the side support, an overturning clamp is arranged on the placement circular truncated cone, and a special-shaped supporting seat is arranged between the placement circular truncated cone and the side support; a U-shaped supporting frame is arranged outside the special-shaped supporting base in a sliding mode, and a powder spraying nozzle is arranged on the side wall of one end of the U-shaped supporting frame. Through the arrangement of the auxiliary rotating rollers and other assemblies, multiple false teeth can be extruded and clamped, meanwhile, the false teeth are subjected to rolling and overturning operation, the comprehensiveness of false tooth scanning is guaranteed, and the problem that a clamped part cannot be scanned is also solved.

The utility model discloses a complete denture teaching aid. An upper jaw bone and a zygomatic arch are integrally connected, and the upper jaw bone and a lower jaw bone are oppositely arranged at intervals; the upper false tooth is detachably connected with the upper jawbone, and the lower false tooth is detachably connected with the lower jawbone; the two telescopic pieces are fixedly connected to the side portion of the zygomatic arch and the side portion of the mandible respectively, and the fixed ends of the two telescopic pieces are connected to the periphery of the outer side of the zygomatic arch and the top of the outer side of the mandible respectively. The adjusting parts are arranged among the corresponding telescopic parts, the zygomatic arch and the mandible in a suspended mode, and the adjusting parts are fixedly connected with the movable ends of the corresponding telescopic parts respectively. The upper jawbone is integrally connected with the zygomatic arch and is arranged opposite to the lower jawbone at an interval, and the upper jawbone and the lower jawbone in a real oral cavity are simulated. The upper false tooth and the lower false tooth are detachably connected to the upper jawbone and the lower jawbone respectively and are used for simulating and replacing missing teeth. The stretching length and angle of the telescopic piece are controlled through the adjusting piece, and the relative distance and position relation between the maxilla and the mandible are adjusted, so that the alignment process of the maxilla and the mandible is displayed in real time.

1. Name of the product in this design: Ozone Cup (Y825s). 2. Purpose of this design: To assist in oral hygiene and to sterilize and care for oral appliances such as toothbrushes, dentures, and retainers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a false tooth strength detection device, and relates to the technical field of detection devices. The detection device comprises a working panel, a detection box arranged on the working panel, and a box door and a control panel which are arranged on the detection box, a carrier plate which is in sliding fit with the working panel is arranged in the detection box, the carrier plate is driven by a driving piece to enter and exit the detection box through a box opening of the detection box, and a pressure sensor is arranged on the carrier plate. A clamp used for clamping false teeth is installed on the pressure sensor, a hydraulic push rod is installed in the detection box, and a piston rod of the hydraulic push rod is provided with a pressing piece. The whole detection process is carried out in the box body, so that splashing false teeth are intercepted in the box body, the damage phenomenon cannot be caused, the later cleaning work is also facilitated, and the detection device provided by the utility model is compact in design and convenient to operate in consideration that false tooth strength detection is a spot check mode and not all produced false teeth are detected. And the device can be put into use after being placed on a workbench.

This application proposes a method and apparatus for arranging teeth in complete dentures, belonging to the field of data processing. The method includes aligning maxillary and mandibular oral scan data and silicone occlusal recording data from silicone rubber, and then overlaying preprocessed CBCT data with the aligned maxillary and mandibular oral scan data and silicone rubber oral scan data to obtain first overlaid data. Furthermore, the first overlaid data is overlaid with facial scan data of the patient in various facial states to obtain second overlaid data, and a tooth arrangement plan is derived based on the second overlaid data. This achieves standardized tooth arrangement, facilitates standardized inspection, and reduces the high cost and time required for tooth arrangement. By integrating multiple data sources to provide rich tooth arrangement information, the tooth arrangement plan is better matched to the patient, improving the compatibility between the tooth arrangement plan and the patient.

1. Name of the product in this design: Double-top polishing machine. 2. Application of this design: This design is used for polishing resin bases and dentures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D view of the assembled state. 5. The bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of component 1 is omitted; the bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of component 2 is omitted. 6. Other situations requiring explanation: This product design is composed of component 1 and component 2. Component 1 is the main body of the polishing machine, and component 2 is the cover of the polishing machine. Component 1 and component 2 are combined to form a three-dimensional view of the combined state.