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392results about "Artificial teeth" patented technology
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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
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
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
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
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
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
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
Zirconia denture crystallization furnace
The utility model relates to dental medical instrument technical field discloses a kind of zirconia denture crystallization furnaces, including base and crystallization furnace main body, the inside of the base is provided with feeding mechanism, the inside of the crystallization furnace main body is provided with gas control mechanism;The feeding mechanism includes motor one, the inside of the base is fixedly connected in the outside of motor one, the driving end of motor one is fixedly connected with disc, the left end of the disc is fixedly connected spiral protrusion, the inside of the base is fixedly connected with cylinder, the inner wall of the cylinder is slidably connected with sliding column, the right end of the sliding column is fixedly connected with rack plate.In the utility model, annular plate on placing tray can prevent zirconia denture from sliding or falling during transportation, after reaching specified position, sealing ring and heat insulation pad are in close contact, ensure the sealing property of heating chamber, reduce scald risk, improve work efficiency while automatic operation, reduce labor intensity.
Owner:SHANGHAI SENYI MEDICAL TECH CO LTD
Polymerizable dental composition
The present invention relates to a polymerizable dental composition comprising a specific monomeric system containing at least a specific high viscosity performer monomer and a specific low viscosity thinner monomer with similar refractive indices. The present invention also relates to the use of the specific monomeric system for the preparation of a crosslinked dental composition. Finally, the present invention relates to the use of a specific compound for stabilizing a polymerized dental composition.
Owner:DENTSPLY SIRONA INC +1
Precision adjustment method and mechanism of five-axis linkage denture engraving and milling machine
The present application relates to the technical field of five-axis linkage false tooth engraving, in particular to a precision adjustment method and mechanism of a five-axis linkage false tooth engraving and milling machine, comprising the following steps: preparation before debugging; measuring the geometric precision of X, Y and Z axes; measuring the geometric precision of the electric spindle; measuring the positioning precision of X, Y and Z axes; respectively leveling A and B axes, and preliminarily measuring and calculating external offset A and B; finding the intersection coordinates of A and B axes, and preliminarily measuring and calculating external offset X / Y / Z; cutting a standard correction block, measuring the correction block precision; and completing precision debugging. Through multiple precision adjustment steps, the precision of each axis position is measured, the whole is adjusted in precision according to the precision adjustment standard, so that the precision of the false tooth engraving and milling machine during operation can meet the standard, the false tooth is more precise during processing, and the five-axis linkage false tooth engraving and milling machine can also move stably, thereby ensuring the precision and smooth surface quality of the false tooth cutting part.
Owner:NANJING CHAMLION LASER TECH CO LTD
Zirconium dioxide denture based on digital design
The application relates to the technical field of dentures and discloses a zirconia denture based on digital design, which comprises a denture body and a connecting member; the denture body is installed on the connecting member, the denture body is divided into a surface layer and an inner layer, the surface layer is a high-transparency zirconia layer, and the inner layer is a high-strength zirconia layer; the connecting member is fixedly connected on an implant abutment through screws, the connecting member comprises a positioning limiting piece and a fine adjustment assembly; the fine adjustment assembly comprises 3-4 uniformly-distributed fine adjustment screws which are matched with threaded holes at the bottom of the denture body, and the denture body can be slightly adjusted in angle and gap by rotating the fine adjustment screws. Through layered bionic design, the double-layer structure of natural tooth dentin and tooth enamel is simulated, the surface layer high-transparency zirconia guarantees permeability and beauty, the inner layer high-strength zirconia guarantees mechanical properties, gradient transition design avoids interlayer peeling, and the problem that the existing dentures cannot be both beautiful and strong is solved.
Owner:SHANDONG MAIER DENTAL MATERIALS CO LTD
METHOD FOR PRODUCING A DENTAL PROSTHESIS BY FILLING A SPACE
Owner:HERAEUS KULZER GMBH
Method and device for producing a dental restoration and use thereof
A method for fabricating a dental restoration (12) from at least one material of a first material type is described. In this method, a region of the dental restoration (12) made from the material of the first material type has at least two sections of different color and at least two sections of different color brightness. The method comprises providing a first starting material (M1) with a first color, a first color brightness, and a first opacity. Furthermore, the method comprises providing a second starting material (M2) with a second color, a second color brightness, and a second opacity. The region of the dental restoration (12) made from the material of the first material type is then constructed by spatially arranging a plurality of volume segments, each volume segment being formed exclusively from one or more selected components of the first starting material (M1) and the second starting material (M2).Furthermore, a device (10) for the production of a dental restoration (12) is presented. Its use is also described.
Owner:IVOCLAR VIVADENT AG
Accurate bubble-preventing positioning clamp for complete dentures
Owner:QINGDAO HUAXINHUA DENTAL
A digital mandibular precise positioning and customized removable denture preparation integrated method
The application discloses a kind of digital lower jaw accurate positioning and customized removable denture preparation integrated method, it is related to stomatology technical field. Including: initial diagnosis data collection;Digital modeling and jaw position adjustment;Design treatment jaw position guide plate;Try on jaw position guide plate, check lower jaw movement, confirm facial form beautiful, prepare silicon rubber final impression, record the actual occlusion relationship of patient;Based on occlusion relationship preparation-final denture, the obtained-final denture is carried out clinical evaluation.The application is for complex oral conditions, such as occlusion disorder, temporomandibular joint disorder patient, by obtaining personalized fitting removable denture, adjusting the relative position relationship of upper and lower jaw bones, relieving abnormal stress of joint, assisting the stability and recovery of temporomandibular joint, realizing the unity of stability and aesthetic effect of stomatognathic system after repair.
Owner:WEST CHINA STOMATOLOGICAL HOSPITAL OF SICHUAN UNIV
Process for producing a zirconia dental article
The invention relates to a process of producing a dental zirconia article, the process comprising the steps of processing a radiation-curable zirconia sol A as construction material in an additive-manufacturing process comprising a radiation-curing step to obtain a zirconia gel article, the zirconia gel article having the shape of a dental article with an outer and an inner surface, applying a radiation-curable zirconia sol Bx on at least a portion of the outer surface of the zirconia gel article,radiation-curing the radiation-curable zirconia sol Bx of step (b), transforming the zirconia gel article into a zirconia aerogel article, the radiation-curable zirconia sol A being same or different from the radiation-curable zirconia sol Bx with respect to chemical composition and / or physical properties. The invention also relates to a dental ceramic zirconia article obtainable by the process described in any of the proceeding claims.
Owner:SOLVENTUM INTELLECTUAL PROPERTIES CO
Defect repairing device for porcelain prosthesis
The utility model discloses a defect repairing device for a baked porcelain restoration, which belongs to the field of baked porcelain restoration and comprises a handle, an anti-slip sleeve is fixedly sleeved on the outer wall of the handle, an adsorption component is arranged on the side wall of the handle and comprises a sliding seat fixedly connected to the side wall of the handle, and a limiting block is fixedly connected to the side wall of the sliding seat. Through cooperative use of all the devices, in the polishing process of the polishing head, tooth powder generated during polishing can be rapidly adsorbed through cooperation of the suction rod, a suction box, a vacuum generator and a negative pressure pipe and high-speed adsorption force, the powder is adsorbed through a filter plate and an adsorption plate, and the tooth powder is adsorbed through the suction box, the suction box, the vacuum generator and the negative pressure pipe; tooth powder is prevented from remaining at the tooth grinding position to affect the adhesion strength of porcelain repair, the repair efficiency can be improved through adsorption in the grinding process, the cleaning assembly is matched, the grinding efficiency can be improved through mutual cooperation of a flushing box, a nozzle and an air pipe and water flow, and the repair effect is further improved.
Owner:GUANGDONG YUECHENG DENTAL TECH DEV CENT
Novel dental prosthetic material and patient-customized dental prosthesis comprising same
The present invention relates to a novel dental prosthetic material and a patient-customized dental prosthesis comprising same, the material improving water resistance, reproducing a color similar to an actual tooth, and thus improving the aesthetic appearance even after prosthetic treatment. In addition, patient-customized prosthetic treatment can be performed using a 3D printer on a tooth requiring prosthetic treatment. The material exhibits enhanced physical properties compared to existing photocurable resin compositions and has excellent adhesive strength, thereby preventing a dental prosthesis from detaching after treatment.
Owner:GRAPHY
System and method for coloring a dental prosthesis
Disclosed are example embodiments of methods and systems for automatically coloring a dental prosthesis. One of the systems includes: a memory configured to store a computer-aided manufacturing (CAM) file of the dental prosthesis; a holding apparatus for securing the dental prosthesis; one or more outlets for dispensing coloring fluid; an coloring fluid controller configured to control the one or more outlets to dispense coloring fluid at a preset size and frequency based at least on the CAM file; and a motion controller configured to move the holding apparatus or the one or more outlets based at least on the CAM file.
Owner:JAMES R GLIDEWELL DENTAL CERAMICS
Metal porcelain tooth capable of preventing edge collapse
The utility model discloses a prevent edge collapse porcelain metal porcelain tooth, related to metal porcelain tooth technical field, including metal tooth body and porcelain body, metal tooth body includes fixed part and movable part, and the fixed part is installed on the natural tooth, and the movable part is provided with the slot that is matched with movable part side wall shape on, and the flexible strip is fixedly connected between the edge part of fixed part and movable part, and the middle part of fixed part is inserted with the slot and is connected with the rubber pad between the groove fixedly, and the fixed part and the inner wall of groove are all smooth surface, and a plurality of weakening grooves are equidistantly seted up on the rubber pad. The utility model discloses a metal tooth body is set up as the fixed part of fixed natural tooth and the movable part that can be opposite fixed part movable, and the rubber pad of weakening groove is seted up between the both, and the pressure is transferred, when the tooth bites to the hard thing, the rubber pad will be deformed (be pressed flat), makes the porcelain body can get the buffer, has reduced the phenomenon that porcelain collapses when porcelain body suffers the hard thing obstruction suddenly.
Owner:HAINAN DINGYUAN MEDICAL INSTR CO LTD
Method for making a digitalized complete denture
The application discloses a kind of production methods of digital active complete denture, first according to the oral data of patient, pours and takes plaster model;The plaster model is scanned, and detection type active denture is made;Detection and adjustment of each production index are detected and adjusted by wearing detection type active denture, and each production index of detection and adjustment is input into software, the arrangement of artificial tooth and the design of base are completed, and then resin base and artificial tooth are made respectively, resin base, artificial tooth and upper and lower jaw plaster model are assembled on bite frame, silicon rubber is used to print upper and lower jaw artificial tooth negative mould, and finished product resin tooth is placed in negative mould, fixed, filled with glue, polished, and then obtained.The production cycle of the method is short, which reduces the burden of patients and also reduces the operation difficulty of doctors.
Owner:δΈεε
Apparatus for processing artificial tooth with disinfection and sterilization function
An apparatus for processing an artificial tooth with a disinfection and sterilization function includes: a work bed unit in which a tooth mother material selected from a titanium material or a zirconia material is installed and fixed, and in which a wet-type die that processes a titanium material and a dry-type die that processes a zirconia material are separately disposed; a processing tool unit that has a driving spindle to which a processing tool is coupled at an end thereof and that processes the tooth mother material while moving close to or away from the tooth mother material; and a disinfection / sterilization module that is coupled in a detachable type in the work bed unit and can simultaneously reduce powder and perform disinfection.
Owner:ZEUS TECH CO LTD
A device for removing an oral ceramic restoration and a method of using the same
The application provides a kind of oral ceramic restoration dismantling device and its using method, belong to oral ceramic restoration dismantling technical field.The application oral ceramic restoration dismantling device includes for emitting laser beam thulium-doped fiber laser, for the transmission device for focusing laser beam passes through, for the collimator for coupling laser beam into optical fiber, for the output optical fiber of output laser beam, ceramic restoration 5 and abutment, the laser beam of the output optical fiber output and the surface of ceramic restoration are perpendicular to each other, the output optical fiber, ceramic restoration and abutment are located on the same straight line.The application oral ceramic restoration dismantling device is convenient to operate, solves the destructive of existing oral ceramic restoration dismantling method to abutment and restoration, and the problem of poor comfort.
Owner:HOSPITAL OF STOMATOLOGY SUN YAT SEN UNIV +1
A method for realizing color continuous gradient transition by using DLP light curing 3D printing
The application provides a method for realizing color continuous gradient transition by using DLP light curing 3D printing, and belongs to the technical field of additive manufacturing. The steps comprise: providing a dual-wavelength DLP light curing printing device, adjusting a printing focal plane, segmenting and slicing a three-dimensional digital model, setting dual-wavelength exposure parameters, preparing a photosensitive resin slurry containing components such as pH responsive dyes and photoacid generators, completing layer-by-layer printing through reciprocating dynamic switching of visible light curing forming and ultraviolet light color regulation, and obtaining a target workpiece after post-processing. The method realizes high-resolution, continuous gradient integrated forming of multi-color materials through single-light-machine dual-wavelength (365nm ultraviolet light and 460nm visible light) ultra-high-speed dynamic switching combined with a specific formula of photosensitive resin slurry.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY
Apparatus and method for manufacturing a dental milling block with a graduated color and / or translucency profile
Apparatus and processes by providing for gradually interleaving layers of zirconia powders having different concentrations of colorants and yttria to obtain color and translucency gradients that more closely mimic natural teeth, in which apparatus includes a comb having a multiplicity of tines that is extended vertically into a mold configured to hold at least two layers of differently constituted powders, such that adjacent layers of the powders form an interface. The comb is reciprocated to create a textured surface pattern on a topmost layer of powder and additionally may be used to penetrate an interface between adjacent layers, thereby redistributing the particles near the interface.
Owner:THE ARGEN CORP
SiCN LAYERS AND METHODS OF MAKING SiCN LAYERS
The present disclosure provides for making silicon carbonitride (SiCN) layers or a quaternized SiCN layers on a structure and medical apparatus including the structure having the SiCN layer or a QSiCN layer. The presence of the SiCN layer or a QSiCN layer on the substrate give the substrate one or more of following characteristics: anti-bacterial, osseointegrative and anti-corrosive.
Owner:UNIV OF FLORIDA RESEARCH FOUNDATION INC
Fluorescent glass ceramics and glasses containing cerium and tin
Owner:IVOCLAR VIVADENT AG
A new method for making an immediate denture
This disclosure presents a novel method for fabricating immediate implant-supported dentures. The method includes: acquiring first oral data, which includes three-dimensional data of a edentulous jaw model and three-dimensional data of a denture model, the denture model being located at a planned position relative to the edentulous jaw model; acquiring second oral data, which includes scanned data of multiple abutments installed within the oral cavity; determining the positional relationship between the multiple abutments and the denture model based on the first and second oral data; forming multiple holes in a prefabricated denture corresponding to the denture model based on the positional relationship, each hole accommodating one of the multiple abutments; and fixing the multiple abutments to the prefabricated denture. This denture fabrication method employs digital scanning technology to precisely drill holes in the prefabricated denture, ensuring a tight connection with the abutments. This process simplifies the fabrication process and enables the efficient production of highly customized, high-precision dentures.
Owner:SHANGHAI STOMATOLOGICAL HOSPITAL FUDAN UNIV +1