70 results about "Dental cast" patented technology

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 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 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.

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 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.

The utility model discloses a substitute body for dental implant, the substitute body is made of resin material and comprises a butt joint part, a positioning section and a fixing section, the butt joint part is arranged inside the fixing section, the butt joint part is connected with an abutment, the positioning section is connected with a dental cast body, the positioning section, the connecting part and the fixing section are arranged along the same central axis, and the butt joint part is connected with the positioning section. A butt joint groove is formed in the center of the butt joint part, the butt joint groove comprises a transition section and a clamping groove with the cross section being in a regular polygon shape, arc-shaped protrusions are arranged on the outer surface of the positioning section, the number of the protrusions is the same as that of the sides of the clamping groove, and the positions of the sides of the clamping groove correspond to the positions of the protrusions in a one-to-one mode. The oral cavity replacement device is reasonable in structural design, conditions in the oral cavity of a patient can be restored more sufficiently after the base is installed on the replacement body, and the replacement body can be installed and adjusted more conveniently; a dentist technician accurately restores the condition in the oral cavity of a patient through the replacement body, and the manufactured false tooth is excellent and is more adaptive to the oral cavity of the patient.

The invention relates to the field of tooth socket machining, in particular to a die pressing device for tooth socket die machining and a using method thereof.The die pressing device comprises a base, guide columns are symmetrically installed above the base, a top seat is installed above the guide columns, a sliding seat is slidably connected to each set of guide columns, and a hydraulic cylinder is installed between the upper portion of each sliding seat and the top seat; and a lower mold is mounted above the base. The bolt is rotated to drive the sliding block to move, linear motion is converted into left-right swing of the rotating plate through cooperation of the sliding block and the sliding groove, and therefore the transverse angle of the dental cast is adjusted; the angle of the tooth mold can be independently rotated by lifting the tooth mold, and the tooth mold is automatically locked by the spring, so that the accurate pose adjustment of the tooth mold is realized, the mold is prevented from being opened again due to adjustment, and the correction cost is obviously reduced. During forming, the annular air bag is inflated and then fills a dental cast gap, the air bag is gradually shrunk after the material is injected, the material is guided to tightly fill the tooth space, the tooth socket is accurately formed at the tooth space position, and a tooth socket product attached to the tooth shape is obtained.

The application discloses a kind of appliance demolding method and system, belong to medical instrument manufacturing technical field.The appliance demolding method includes: at a plurality of predetermined drilling position, by the first plane of dental model, along the first direction, drill medium placement hole, the medium placement hole just penetrates dental model;In the medium placement hole, fill centrifugal medium, the centrifugal medium at least when centrifugal motion occurs, it can move in the medium placement hole along the first direction, and can pass through the medium placement hole;The medium placement hole is closed, and the centrifugal medium can be kept in the medium placement hole;Centrifugal operation is carried out to dental model component, and centrifugal medium is under the action of centrifugal force along the first direction through medium placement hole and acts on appliance, so that appliance is separated from dental model.The demolding system is constructed according to the demolding method.The application can realize the demolding of appliance under the condition of smaller damage to appliance, and improve the demolding quality.

The invention relates to a method for manufacturing an orthopedic appliance comprising at least one functional joint guidance aligner (1), which method consists in • Acquiring and recording first data relating to the dental molds (2) of the patient, • Acquiring and recording second data relating to a three-dimensional view of the skull (3) of the patient, • Combining the first and second recorded data, • Performing mandibular segmentation on the "combined" image, • Acquiring and recording a natural opening movement involving pure rotation, • Determining and recording a target position of the jaw of the patient, • Determining and recording occlusal guidance planes for temporomandibular joint repositioning, • Using the data relating to occlusal guidance planes for temporomandibular joint repositioning in order to design at least one maxillary and / or mandibular model (9) allowing the manufacture of at least one functional joint guidance aligner (1).

The utility model relates to the technical field of false tooth processing, and discloses a dental cast storage device for false tooth processing, which comprises a storage box and a driving structure, and further comprises a storage frame movably connected in the storage box, a first screw rod rotationally connected to the front and the rear of the interior of the storage box, and a second screw rod rotationally connected to the front and the rear of the interior of the storage box, threads on the two sides of the surface of the first screw rod are oppositely arranged; the movable blocks are in threaded connection with the two sides of the surface of the first screw rod, supporting rods are hinged to the tops of the movable blocks, and the other ends of the supporting rods are hinged to the bottom of the storage frame; according to the dental cast storage device, the storage frame can move up and down and can move in the storage frame along with the placement box, so that the dental cast can be conveniently stored and taken, subsequent carrying and transportation are facilitated, meanwhile, the stored dental cast can be limited through the arrangement of a limiting structure, and the dental cast storage device is convenient to use and high in practicability. And the stored dental cast is prevented from being damaged during transportation.

The utility model relates to the technical field of impression cleaning machines, and particularly discloses dental cast cleaning equipment which comprises a control bin and at least one disinfection bin detachably and fixedly arranged on one side of the control bin. The control bin comprises a first bin body and a first bin door, the first bin door is arranged on the front side of the first bin body, a disinfection liquid storage bin is arranged in the first bin body, and a main water inlet port, a main air inlet port, an air outlet port, a water outlet port and a disinfectant outlet port are formed in a back plate of the first bin body; the disinfection bin comprises a second bin body and a second bin door, the first bin door is arranged on the front side of the second bin body, an atomization cleaning spray head is arranged on the upper portion of the interior of the second bin body, a dental cast bracket is arranged on the lower portion of the interior of the second bin body, and a disinfection bin water inlet port, a disinfection bin air inlet port and a disinfection bin disinfectant inlet port are formed in a back plate of the second bin body; according to the dental cast cleaning device, the disinfection bin can be controlled through the control bin to perform multi-mode cleaning on the dental cast, the operation functions are rich, the energy consumption is relatively low, and the use value is relatively high.

The invention relates to the technical field of tooth orthodontics, in particular to an orthodontic appliance friction force measuring device and a use method. The surface of the test base is provided with a plurality of tooth model modules which are arranged in an arc-shaped track and are uniformly distributed, one side of each tooth model module is provided with a bracket, the inner side of each bracket is provided with a miniature strain gauge, the inner side of each bracket is provided with an arch wire in a penetrating manner, one end of each arch wire is fixedly connected with a fixed dynamometer, and the outer side of each fixed dynamometer is fixedly connected with the test base. The other end of the arch wire is fixedly connected with a force measuring module; arch wires are installed in a bracket on the outer sides of a plurality of simulated teeth, the arch wires are pulled through a force measurement module, the friction force between the arch wires and the bracket is measured, and when the force measurement module pulls the arch wires, a fixed dynamometer just displays a numerical value which indicates that the friction force measured by the force measurement module is the total value of the friction force between the arch wires and the bracket. The device is used for facilitating subsequent installation and adjustment of the appliance.

The utility model discloses a dental cast raw material stirring device for stomatology, which comprises a bottom plate, and a support rod is arranged on the bottom plate; a lifting movable plate is arranged on the supporting rod, a stirring shaft is rotationally arranged on the movable plate, an L-shaped plate is further arranged on the bottom plate, a circular rotating plate is rotationally arranged on the L-shaped plate, the rotating plate and the stirring shaft are coaxially arranged, a raw material barrel is arranged on the rotating plate, and a stirring shaft is arranged on the stirring shaft. The movable plate descends along the long side direction of the supporting rod, so that the stirring blades extend into the raw material barrel, and the stirring shaft and the rotating plate rotate simultaneously to perform a stirring procedure; the dental cast raw material stirring device has the beneficial effects that the stirring shaft and the rotating plate are coaxially arranged and rotate reversely, so that the dental cast raw material is efficiently stirred, the stirring efficiency is improved, and the raw material forms a complex flowing mode in the raw material barrel due to the reverse rotation of the stirring shaft and the rotating plate, so that the uniform mixing of the raw material is facilitated.

A system and method enable repeatably aligning dental impression with patient's natural head position (NHP). Dental indexing tray is coupled to a scannable base, which pivotally engages a pivot block. The pivot block is positioned in a level position using a spirit level, and the base, pivot block and patient's face in the NHP are scanned. The scanned material provides an indexing system to align subsequent facial scans to the position of the indexing tray.

This application relates to a force measuring device and method for an expander. The force measuring device includes a base plate, a clamping plate assembly, a force adjusting assembly, and a tension sensor. The clamping plate assembly includes a first clamping plate and a second clamping plate, which are slidably connected to the base plate along the expansion direction. The force adjusting assembly is connected to the second clamping plate along the expansion direction and is connected to the tension sensor. During force measurement, two dental mold flaps of a dental model are connected above the first and second clamping plates, respectively. A traction force is applied to the second clamping plate through the force adjusting assembly, and the tension sensor records the tension value of the force adjusting assembly in each state. This application can measure the expansion force of the expander in various states under different expansion amounts, enabling the quantification of the expansion force index. This facilitates the assessment of the optimal replacement time of the expander during the expansion process and has advantages such as simple structure and strong practicality.