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Implant immediate denture precise manufacturing system based on preoperative planning and three-dimensional registration
The invention provides an implant immediate denture precise manufacturing system based on preoperative planning and three-dimensional registration. An example method includes obtaining first oral data, the first oral data including three-dimensional data of a denture model and three-dimensional data of a marker; acquiring second oral cavity data, wherein the second oral cavity data comprises scanning data of a plurality of bases fixed in the oral cavity and a marker; registering the first scanning data and the second scanning data based on the matching of the three-dimensional data of the marker and the scanning data of the marker; a denture model to be processed is generated based on a result of the registration, the denture model to be processed comprising three-dimensional data of the denture model and positioning information of a plurality of holes, each hole being for accommodating one of the plurality of abutment. According to the embodiment of the invention, the accurate positioning of the false tooth model and the abutment is realized by using a digital technology, the accurate matching of the false tooth and the abutment is ensured, and the comfort and experience of a dental implant patient are improved.
Owner:SHANGHAI STOMATOLOGICAL HOSPITAL FUDAN UNIV +1
Five-axis linkage false tooth engraving and milling machine
The invention relates to the technical field of false tooth engraving and milling machines, and discloses a five-axis linkage false tooth engraving and milling machine which comprises a five-axis linkage false tooth engraving and milling machine body, a main shaft shell is arranged in the five-axis linkage false tooth engraving and milling machine body, and a fixing cover is fixedly arranged in the five-axis linkage false tooth engraving and milling machine body; a flexible movable cover is arranged at the top of the fixed cover, a through hole correspondingly connected with the main shaft shell is formed in the top of the movable cover, a sealing ring is arranged at the joint of the movable cover and the main shaft shell, and a collecting box is installed on the back face of the five-axis linkage false tooth engraving and milling machine body. The fixed cover and the movable cover are cooperatively sealed, the movable cover of the multi-layer folded organ pleat structure can tightly move along with the main shaft shell, a machining area is always highly sealed when equipment runs and the main shaft moves, cooling liquid splashing, metal or ceramic chip scattering and dust overflowing are effectively prevented, and the cleanliness of the working environment is greatly improved.
Owner:SUZHOU SIMIXUN ELECTROMECHANICAL EQUIP CO LTD +1
Method of making dental object and system of making dental object
The embodiment of the invention is suitable for the technical field of dentistry and 3D printing, and provides a method and system for manufacturing a dental object, the method comprises the following steps: obtaining a dental model, the dental model comprising at least one abutment and a repair part associated with a dental prosthesis model; establishing a stent model, wherein the stent model is configured to be mounted on an abutment tooth; a base model is established, the base model comprises a first part and a second part, the support model is clamped between the first part and the second part, and the first part of the base model is aligned with the repair part of the dental model; establishing a tooth prosthesis model, wherein the tooth prosthesis model is aligned with the second part of the denture model; manufacturing a base plate based on the first part and the second part of the base plate model, and manufacturing a stent based on the stent model; the base and the stent are connected to obtain a dental object. By adopting the method, the dental object can be manufactured in a digital mode, and the manufacturing efficiency and accuracy of the dental object are improved.
Owner:GUANGZHOU HEIGE ZHIZAO INFORMATION TECH CO LTD
Dental components and methods to align dental components
A system can be configured to record a position and orientation of a dental component. The system can include a coping and a replica. The coping can include an anti / rotational feature that is configured to mate with an anti-rotational feature of a dental component. The coping can also include an orientation feature that is configured to convey the orientation of the dental component. The replica can include a first anti-rotational feature that corresponds to the anti-rotational feature of the dental component. The replica can also include a second anti-rotational feature that does not correspond to the anti-rotational feature of the dental component.
Owner:NOBEL BIOCARE SERVICES AG
Rapid sintering method of zirconia ceramic for dentistry and zirconia ceramic
The invention provides a rapid sintering method of zirconia ceramic for dentistry and zirconia ceramic, the rapid sintering method of zirconia ceramic for dentistry comprises the following steps: obtaining a pre-sintered body prepared from zirconia powder with stable yttrium oxide, and obtaining a standard active sintering temperature of the zirconia powder; the pre-sintered body is subjected to final sintering in a preset final sintering stage, the zirconia ceramic is obtained, the preset highest sintering temperature in the preset final sintering stage is higher than the standard active sintering temperature, and the difference value between the preset highest sintering temperature and the standard active sintering temperature ranges from 10 DEG C to 60 DEG C. According to the embodiment of the invention, the preset highest sintering temperature in the preset final sintering stage is set to exceed the standard active sintering temperature by 10-60 DEG C, so that the highest sintering temperature of the final sintering process is improved, the final sintering time of the zirconia ceramic is shortened, the production efficiency of the zirconia ceramic product is improved, and the production cost is reduced. And meanwhile, the material can obtain excellent mechanical properties and transparency within an extremely short time.
Owner:SHENZHEN XIANGTONG PHOTOELECTRIC TECH
Method and system for producing dental objects
The invention relates to a method and a system for producing a dental object. The method comprises the following steps: acquiring three-dimensional digital models of a plurality of dental objects, and determining a plurality of estimated weights based on the volume of each dental object and the density of a material associated with each dental object; -producing a dental object made of said material; -measuring the weight of the manufactured dental object; and-determining a difference between the measured weight and each of a plurality of estimated weights, and in response to the difference being within a predetermined range, at least one target cue device of a plurality of cue devices issuing a cue, each of the plurality of cue devices being associated with at least one storage device, the storage device is configured to store a dental object. The technical problem that the sorting efficiency of produced objects is low is solved.
Owner:GUANGZHOU HEIGE ZHIZAO INFORMATION TECH CO LTD
Device and kit for injection bonding multi-tooth dental restoration in a single treatment
Methods and kits of materials and supplies for restoring teeth by an injection molding process and / or mold overlays in situ in a patient's mouth so as to correct the imperfect teeth of the patient's dentition. The imperfect teeth are corrected by applying restoration materials using a mold of a corrected model of the patients dentition placed over the imperfect teeth. Adjacent teeth may be covered with a polymer release material prior to injection molding of teeth to be corrected, such that the teeth to be corrected have at least one tooth between them draped with the polymer release material to provide a space adjacent to each of the corrected teeth. The corrected teeth are then covered with the polymer release material in a second round of treatment and restoration material is applied to one or more previously covered teeth to provide a first layer which simulates the dentin layer of teeth. Thereafter a simulated enamel layer is applied over the dentin layer using one or more alternating molds and yet another simulated incisal layer is applied over the enamel layer using one or more alternating molds employing the techniques described.
Owner:VUILLEMOT WILLIAM C
Method and system for detecting periimplant mucosa red and swollen area based on deep learning
The invention relates to the technical field of oral cavity digital image processing, and provides an implant perimucosa red and swollen area detection method based on deep learning, and the method comprises the steps: S1, collecting three-dimensional model data of an implant site of a patient, and exporting a standardized visual angle rendering screenshot with a visual enhancement effect by using a matched software rendering function; s2, constructing a deep convolutional neural network based on a YOLOv8 architecture, training a model by adopting a transfer learning strategy, and realizing automatic extraction of implant perimucosa red and swollen focus features; s3, through a feature fusion module in the deep convolutional neural network, automatically retrieving suspected red and swollen sites on the feature maps with different resolutions, performing coordinate correction on the candidate region, and generating an accurate detection frame; and S4, automatically executing batch prediction on the test set based on the trained model, and outputting a detection frame and a quantitative index. And automatic identification and spatial positioning of the red and swollen mucosa area around the implant are realized, so that a visual basis is provided for clinical precise probing and diagnosis and remote early warning.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Blank for the production of dental prosthetic components
Blank for the production of dental prosthetic components by material processing using a CAD / CAM machine, with a blank body made of a dental restoration material and a holding attachment connected to the blank body for holding the blank body in the CAD / CAM machine, the holding element is made of plastic.
Owner:VITA ZAHNFABRIK H RAUTER GMBH & CO KGAA
Stand to hold and rotate stump pegs
A device for rotating one or more artificial dental teeth is disclosed, comprising an upper element having top surface that defines at least one positioning opening capable of receiving a stem, the stem extending between an attaching end and a tooth end, the tooth end capable of holding one or more artificial dental teeth, a lower element having a bottom surface, the lower element capable of moving in a circular motion in relationship with the upper element; a securing element disposed between the top surface of the upper element and the bottom surface of the lower element, the securing element capable of securely holding the stem at a location proximal towards the attaching end within the device; and a turning system disposed between the top element and bottom element, the turning system capable of spinning the stem within the securing element; whereas by moving the lower element in a circular motion against the upper element, the turning system is thereby engaged to spin the stem within the securing element.
Owner:WULFENSTEIN BRENT
Digital customized false tooth 3D printing method
The invention discloses a digitally customized denture 3D printing method, and relates to the technical field of oral cavity rehabilitation, the digitally customized denture 3D printing method comprises a 3D scanning module, a data processing module, a printing module and a post-processing module, the 3D scanning module adopts infrared structured light to scan the oral cavity of a patient to generate an STL format tooth jaw model, and the method further comprises the steps of S1, oral cavity scanning, model and supporting structure, the method comprises the steps of S1, data processing and error compensation, S3, fine division of a support area, S4, calibration and preparation of printing equipment, S5, synchronous printing of a false tooth and a support, S6, ultrasonic dissolution of a support structure, S7, cleaning and drying of the false tooth, and S8, comprehensive quality detection. According to the method, through an advanced scanning algorithm and an intelligent generation gradient support structure in the step S1, through a topological optimization algorithm in the step S2, a porous support structure is automatically generated, and through high-precision equipment detection and establishment of a quality tracing system in the step S8, the problems that traditional denture manufacturing depends on artificial experience and is poor in consistency are solved.
Owner:SHANGHAI SUCHENG DENTURE CO LTD
Pre-sintered ceramic block for dental restoration, preparation method therefor and use thereof
Disclosed is a pre-sintered ceramic block for a dental restoration, which has a low pre-sintering temperature, contains a silica main crystal phase, but does not contain or contains a small amount of lithium metasilicate crystal phase. The pre-sintered ceramic block has a low hardness, with a Vickers hardness of 0.5-3 GPa, which is significantly lower than that of a ceramic block containing a lithium metasilicate crystal phase, and same is suitable for dry machining and also wet machining when being machined into a dental restoration.
Owner:SHENZHEN UPCERA DENTAL TECH
Method for defining different layer elements of an artificial tooth element - Patents.com
The present invention relates to a method for defining different layer elements of an artificial tooth element, the method comprising the steps of: defining an interface between an inner core element (38) and an outer layer element (50) at least partially surrounding the inner core element (38); selecting an additional layer element (60, 62, 64, 66) from a provided selection list including a plurality of additional layer elements; and automatically positioning at least one selected additional layer element (60, 62, 64, 66) in a spatially defined relationship relative to the core element (38) and / or the outer layer element (50).
Owner:VITA ZAHNFABRIK H RAUTER GMBH & CO KG
Equipment for assembling and disassembling dental implant
The invention relates to the technical field of dental implants, and discloses equipment for assembling and disassembling a dental implant, the equipment comprises a robot body, a robot right arm and a robot left arm, the robot right arm and the robot left arm are mounted on the robot body, and a first clamping mechanism is mounted at the tail end of the robot right arm; the first clamping mechanism is used for releasably clamping the dental implant and can drive the dental implant to move and rotate around the axis of the dental implant, and a torque sensor is mounted on the right arm of the robot and is used for acquiring the rotating torque applied to the dental implant; a first clamping mechanism is mounted at the tail end of the robot left arm, a second clamping mechanism is mounted at the tail end of the robot left arm, the second clamping mechanism is used for clamping a tool rod, and the first clamping mechanism and the second clamping mechanism are matched to be used for mounting a dental implant on the tool rod to form an implant loading unit or dismounting the dental implant from the tool rod. Through cooperative work of the right arm and the left arm of the robot, rapid connection and separation of the dental implant and the tool rod are realized, and the consistency of product quality is ensured.
Owner:SHANDONG HANZHANG MEDICAL TECHNOLOGY CO LTD
Checking a physical dental element using motion tracking
Disclosed is a method for checking a geometric form of a physical dental element using motion tracking and augmented reality. The method comprises a receiving of a three-dimensional digital model comprising a three-dimensional digital dental element, as well as repeatedly: a receiving of optical imaging data from an optical sensor device, a detecting of structural elements within the optical imaging data, a determining of a target position for the three-dimensional digital dental element using the reference points defined by the structural elements, and a controlling of an electronic display device for displaying an augmented reality view on the physical dental element augmented with the three-dimensional digital dental element.
Owner:EXOCAD
Dental ceramic coloring liquid with shielding property
The invention relates to a dental ceramic coloring liquid with shielding property. The present invention provides a dental ceramic coloring liquid which is capable of suppressing a decrease in mechanical strength of a dental ceramic after sintering, has good storage stability, and is capable of imparting shielding properties. The present invention relates to a dental ceramic coloring liquid comprising an organosilicon compound. The organosilicon compound is preferably hydrophilic. The organosilicon compound is preferably a silicone compound. The organosilicon compound is preferably an alkylsilane compound.
Owner:KURARAY NORITAKE DENTAL
Zirconium dioxide false tooth polishing device
The utility model discloses a zirconium dioxide false tooth polishing device, which relates to the technical field of false tooth polishing, and comprises a mounting main body, and further comprises a sealing door which is arranged on the mounting main body and is rotationally connected with the mounting main body; the placing groove is formed in the mounting main body and is fixedly connected with the mounting main body; the dust storage barrel is arranged in the placing groove and is used for collecting dust; the grip is arranged on the mounting main body and is fixedly connected with the mounting main body; the polishing mechanism is arranged on the mounting main body; and the dust collection mechanism is arranged on the mounting main body and the polishing mechanism. According to the device, by arranging the dust collection mechanism, dust generated in the grinding work can be cleaned in time, the cleanliness of the working environment and the safety of workers are guaranteed, meanwhile, dust on false teeth is cleaned in time, and the judgment on the cleaning degree of the surfaces of the false teeth can be more accurate during working.
Owner:WUHAN CHUANGYANYUAN MEDICAL INSTR CO LTD
Combined body of fixed false tooth and movable false tooth
Owner:SHANGHAI CHENXIN MEDICAL DEVICES CO LTD
Unsintered zirconia composite and method for manufacturing same, dental mill blank, and method for manufacturing dental prosthesis
The present invention provides an unfired zirconia composite and a dental mill blank, with which a dental prosthesis can be manufactured with a single sintering operation without a pre-sintering operation and which have appropriate strength to withstand machining. The present invention pertains to: an unfired zirconia composite composed of an unfired zirconia molded body and a resin, wherein the resin is embedded in the unfired zirconia molded body; and a dental mill blank including said unfired zirconia composite.
Owner:KURARAY NORITAKE DENTAL
Computer implementation method for digitally designing the geometric shape of adjacent teeth
Disclosed are systems and techniques for designing a digital dental matrix with improved interproximal contacts, including generating a digital three-dimensional model of a patient's desired future dental structure, where the future dental structure represents the intended shape of at least one tooth of the patient; selecting one or more pairs of adjacent teeth within the 3D model; for each selected pair of teeth, determining a position and orientation within the interproximal space of the adjacent teeth to insert a digital 3D geometric shape having one or more initial parameters; and inserting the digital 3D geometric shape at the determined position and orientation.
Owner:SOLVENTUM INTELLECTUAL PROPERTIES CO
Method for applying an opaque imparting liquid for zirconia
To provide a liquid material which can only adjust transparency by applying on a part of a zirconia crown having high transparency, without coloring. The present invention provides an opaque imparting liquid used for a prosthesis device cut and machined from a dental zirconia for cutting and machining, comprising; (a) 10 to 39 wt.% of a water-soluble aluminum compound and / or a water-soluble lanthanum compound, (b) 60 to 89 wt.% of water, and (c) 1 to 20 wt.% of an organic solvent.
Owner:SHOFU INC
Tray for false tooth processing
The utility model is applicable to the technical field of false tooth processing, and discloses a tray for false tooth processing, which is characterized in that a hollow frame is fixedly mounted at the top of the inner side of a bearing plate, a sliding block is mounted in the hollow frame in a sliding manner, a plurality of groups of first placing grooves are formed in the top of the hollow frame, and a second placing groove is formed in the top of the sliding block; and a pushing mechanism is slidably installed on the outer side of the hollow frame and is in transmission connection with the outer side of the sliding frame, and limiting mechanisms are arranged at the two ends of the side edge of the pushing mechanism and are slidably installed on the outer side of the hollow frame. According to the technical scheme provided by the utility model, the side wall of the second placing groove can move to carry out propping and limiting treatment on the false tooth base material placed in the second placing groove, so that propping and limiting treatment can be synchronously carried out on a large number of false tooth base materials, and the situation that the carving stability of the false tooth base materials is influenced due to random shaking of the false tooth base materials is avoided; and the false tooth processing quality is further improved.
Owner:SUNSTAR DENTAL LAB LTD
Removable anti-loosening false tooth
The removable anti-loosening false tooth comprises a false tooth main body, a tooth root connecting block is arranged at the bottom of the false tooth main body through a connecting groove with internal threads, and a tooth root sleeve for performing outer protection positioning on the tooth root connecting block is arranged at a bottom port of the connecting groove and located at the bottom of the false tooth main body; through the false tooth main body, the connecting groove, the tooth root connecting block, the tooth root main body and the threaded connecting part, the false tooth main body is fixed on the threaded connecting part on the tooth root connecting block through threads of the connecting groove for connection and fixation, so that the false tooth main body and the tooth root connecting block can be quickly fixed, and the tooth root sheath is positioned and sleeved outside the tooth root connecting block for protection; according to the structural connection mode, the false tooth main body only needs to be screwed to be separated from the tooth root connecting block in the picking and replacing process, so that the worn false tooth main body can be conveniently picked and replaced, and the problem of gingival injury caused by picking and replacing by virtue of a tool is avoided.
Owner:MAOMING JINGUANQIAO DENTURE CO LTD
Manufacturing method of novel implanted immediate denture
The invention provides a manufacturing method of a novel implanted immediate denture. The method comprises the steps that first oral cavity data are obtained, the first oral cavity data comprise three-dimensional data of an edentulous jaw model and three-dimensional data of a false tooth model, and the false tooth model is located at a planned position relative to the edentulous jaw model; acquiring second oral cavity data, wherein the second oral cavity data comprises scanning data of a plurality of base stations mounted in the oral cavity; based on the first oral cavity data and the second oral cavity data, determining a position relationship between the plurality of bases and the false tooth model; a plurality of holes are formed in the preformed denture corresponding to the denture model based on the position relation, and each hole is used for containing one abutment in the multiple abutments; and fixedly connecting a plurality of abutment to the preformed denture. According to the denture manufacturing method, a digital scanning technology is adopted, and a hole is accurately formed in a preformed denture, so that the preformed denture is tightly connected with an abutment. According to the process, the manufacturing process is simplified, and the highly customized false tooth with excellent precision can be efficiently produced.
Owner:SHANGHAI STOMATOLOGICAL HOSPITAL FUDAN UNIV +1
Tooth shading, transparency and glazing
Systems, methods, and / or computer-readable media described herein provide technical solutions to the highly technical problems of machine generation of dental restorations. In particular, these systems, methods and / or computer readable media may provide technical solutions to aid in the creation of dental restorations that more closely resemble a natural tooth (including its internal optical structure). These systems, methods and / or computer readable media may help in virtually rendering a tooth, including its internal optical structure, and apply these renderings (e.g., digital models) to the fabrication of the dental restoration.
Owner:ALIGN TECHNOLOGY INC
Artificial anterior tooth for naturalistic appearance
An artificial anterior tooth having a more naturalistic or lifelike appearance for use in the design and / or production of a dental prosthesis and / or dental restoration is provided. The lingual-facing surface of an artificial anterior tooth is provided with a plurality of furrows in predetermined locations on the lingual-facing surface to correspond with a plurality of furrows on the labial-facing surface in predetermined locations on the labial-facing surface, so as to impart variable, lifelike color and / or translucency properties throughout the tooth.
Owner:DENTSPLY SIRONA INC
Dental porcelain paste containing inorganic salt
To provide a dental porcelain paste that can maintain a consistent paste form even during long-term storage and produces almost no carbonization or bubbles during firing, even when containing organic components.SOLUTION: This dental porcelain paste, used for making dental prosthetic devices, includes a base glass (a) with an average particle size (D50) of 1-20 μm, hydrophobic silica particles (b) with an average primary particle size of 1-50 nm, an organic solvent (c) with a boiling point of 100-300°C, and inorganic salts (d).SELECTED DRAWING: None
Owner:SHOFU INC
Intelligent complete denture design method based on multi-task collaborative deep learning
The invention discloses a complete denture intelligent design method based on multi-task collaborative deep learning, and is applied to the technical field of oral rehabilitation. Comprising the following steps: generating an edentulous jaw model after tissue surface buffering through an edentulous jaw buffering area mask self-encoding network; generating a model after undercut filling by adopting an in-place lane direction undercut filling algorithm; generating a complete denture arrangement position based on the multi-rigid body posture prediction network; segmenting an abutment boundary from the edentulous jaw model by using a deep learning model; taking the base boundary and the tooth arrangement position of the complete denture as constraint conditions, constructing a composite loss function in combination with the curvature of the generated surface, and generating a base model by using a conditional generative adversarial network. According to the automatic core tooth arrangement step, errors caused by human factors are reduced, the consistency and reliability of denture design quality are remarkably improved, the wearing comfort and long-term stability of final dentures are enhanced, and popularization and application of a high-quality complete denture repair technology in primary medical institutions are facilitated.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY
Method for determining internal structure of artificial tooth, method for manufacturing artificial tooth, artificial tooth, data processing device, computer program, and computer-readable medium
The invention relates to a method for determining an internal structure (30) of an artificial tooth (24). The method includes acquiring outer shell data describing an outer shell (28) of the artificial tooth (24). First reference geometry information is also defined or acquired. This information describes a first reference geometry (B1) that divides the outer shell (28) of the artificial tooth (24) into a first shell portion (28a) and a second shell portion (28b). Furthermore, a first compressive strain shell (32) is produced by virtual compressive strain on the first shell portion (28a) in one direction with respect to the first reference geometry (B1). At least one sub-volume (34, 36) of the artificial tooth (24) is also derived, said sub-volume being delimited by the first compressive strain shell layer (32). The invention also relates to a method for producing an artificial tooth (24) having a predetermined shell layer (28). The invention also relates to an artificial tooth (24), a data processing device, a computer program and a computer readable medium.
Owner:IVOCLAR VIVADENT AG
Feeding door of false tooth processing equipment
The utility model relates to the field of false tooth processing, in particular to a false tooth processing equipment feeding door which comprises a support, a door body, a push-pull assembly and a limiting assembly, the door body is installed on the support in a sliding mode, the push-pull assembly is installed on the door body to push the door body to slide along the support and control opening and closing of the feeding door, and the limiting assembly is fixed to the support. Therefore, the sliding range of the door body is limited. The feeding door of the false tooth processing equipment solves the problems that an existing manual feeding door is tedious in structure, short in service life and the like, and is simple in structure, low in cost and convenient to operate so as to meet the requirements of dental production experiments of different scales.
Owner:SHENZHEN XIANGTONG PHOTOELECTRIC TECH