41 results about "Dental impression" patented technology

Systems and methods are provided for scanning a dental impression to obtain a digital model of a patient's dentition as an input to computer aided design (CAD) and computer aided manufacturing (CAM) methods for producing dental prostheses. Systems and methods are provided for scanning a physical impression of a patient's dentition and constructing a virtual surface image of the patient's dentition from the scan data thereby obtained. The virtual surface image of the patient's dentition is constructed using isosurfaces and density gradients of a volumetric image and then directly creating a surface image based upon void spaces that correspond to the patient's dentition.

1. Name of the product in this design: Digital Impression Apparatus for Oral Cavity. 2. Purpose of this design: To collect data and obtain three-dimensional morphological data of oral cavity or dental models. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to an optical impression-capturing device that is capable of capturing images for the three-dimensional reconstitution of a dental object representing at least part of at least one dental arch, the device comprising: in a support part of the dental impression tray type suitable for at least partially covering the dental object, an optical assembly having: - a light-emitting system comprising light sources (3') for illuminating the dental object; - optical modules (1) having light-measuring sensors distributed in a bottom wall (4) of the support part oriented, during image capture, towards the dental object, the optical modules (1) being capable of capturing the direct light rays emitted by the light-emitting system and indirect light rays originating from the optical assembly and from the dental object; and also means (2) for protecting the optical modules (1) that allow the passage of light rays.

The utility model relates to an oral cavity digital impression instrument (1) based on an optical-mechanical system. The oral cavity digital impression instrument comprises a core component (10); a lighting member (20) provided at one end of the core member (10); and a base member (30) provided at the other end of the core member (10), the base member (30) being equipped with a protective window (31), the core member (10) and the base member (30) being integrally formed. According to the utility model, the optical-mechanical integrated design scheme is adopted, so that the possibility that liquid enters the inner cavity of the protection window from the engine base part and the core part is fundamentally avoided, and the problem that the protection window fogs when the humidity is changed is solved.

1. The name of the design product: hand grab the dental impression (penguin). 2. The use of the design product: for infants to grind teeth, relieve pain during the teething period, and prevent infants from biting their fingers. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

Systems and methods for providing oral devices using at-home dental impression kits are disclosed herein. An example method includes scheduling an at-home dental impression kit to be sent to a user that includes at least (i) one or more dental trays and (ii) one or more sets of dental putty that are configured to capture the gingiva of the user without distorting the gum lines of the user. The example method further includes scanning a first impression that is representative of the user's upper jaw, and a second impression that is representative of the user's lower jaw. The example method further includes generating a digital rendering of an oral device, and uploading the digital rendering to an application for viewing by the user. The example method further includes fabricating the oral device based upon digital rendering, and scheduling the oral device to be sent to the user.

A model generator generates an impression scan by scanning a polyvinyl impression and generates a stone model using the polyvinyl impression as a negative mold. A comparative analysis of the impression scan and a scan of the stone model determines a digital scaling factor that scales the impression scan to align with the stone model scan. A scan alteration system receives impression scans for dental component production processing and selects digital scaling factors generated by the model generator that scale the impression scans to align with theoretical stone model scans that would be produced by an applicable modeling and scanning process to generate a scaled surface model for use in dental component production.

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.

Title: Optical impression taking device The invention relates to an optical impression taking device capable of taking pictures for the three-dimensional reconstruction of a dental object representing at least a part of at least one dental arch and comprising, in a support piece of the dental impression holder type adapted to cover at least partially the dental object, an optical assembly having: a light emission system comprising light sources (3') to illuminate the dental object;optical modules (1) with light measurement sensors distributed in a back wall (4) of the support piece oriented, during image capture, towards the dental object, said optical modules (1) being capable of capturing direct light radiation emitted by the light emission system, and indirect light coming from the optical assembly and the dental object. In addition, it includes means of protection (2) for the optical modules (1), said means of protection (2) allowing the passage of light rays. Figure for the abbreviation: Fig. 1;

A scanning head for an oral digital impression instrument has a housing and a lens, the housing having a closed first end and an open second end, and a first side and an opposite second side extending between the first end and the second end and provided with a window portion; the lens is fastened at the inner wall of the shell and consists of a first volume of a truncated frustum part and a cuboid-shaped second volume connected with the first volume, the first volume takes the back surface of the lens as the top surface and a diagonal plane starting from the back surface as the peripheral surface and is provided with a bottom surface opposite to the top surface, and the diagonal plane forms an angle ranging from 0 to 90 degrees relative to the thickness direction of the lens; the second volume has the front face of the lens as a bottom face, the bottom face of the frustum portion as a top face, and has a thickness between the top face and the bottom face. Through beveling and grinding the non-effective surface of the lens, the edge thickness of the lens is reduced, and the inlet height of the scanning head is further reduced. The utility model further provides an oral cavity digital impression instrument with the scanning head.

The invention belongs to the technical field of impression materials, and discloses a transparent silicone rubber material for dental impression as well as a preparation method and application of the transparent silicone rubber material. The transparent silicone rubber material is composed of a substrate material and a catalyst, the substrate material is prepared from the following components: vinyl terminated polydimethylsiloxane, polymethylphenyl siloxane oil, nano silicon dioxide, methyltriethoxysilane and polyether modified polysiloxane; the catalyst is prepared from the following components: hydrogen-containing silicone oil, platinum (0)-1, 3-diethylene-1, 1, 3, 3-tetramethyl disiloxane, 1-ethynyl-1-cyclohexanol and cerium oxide. The obtained transparent silicone rubber material has excellent transparency, the light transmittance is larger than 90%, the elasticity modulus can reach 1.41 MPa, the normal-temperature compression rate is as low as 1.81%, the curing time is moderate, the curing time is shortened to a certain degree while the clinical operation time is guaranteed, and the biological safety reaches the standard.

1. The name of the design product: hand holding the dental impression (milk bottle). 2. The use of the design product: for infants to grind teeth, relieve pain during the teething period, and prevent infants from biting their fingers. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The invention relates to an impression tray for creating a dental impression of at least one tooth, comprising: a base element with a base surface, a first boundary element, and a second boundary element, wherein the first boundary element and the second boundary element are arranged at the base element to form a receiving tray between the first boundary element, the base surface and the second boundary element, that is adapted to receive a first dental impression material, wherein the base element comprises a cavity that at least partially extends underneath the base surface so that the cavity and the receiving tray are separated by a base layer of the base element, and wherein the base element comprises an aperture that is in fluid communication with the cavity and adapted to allow the injection of a second dental impression material into the cavity.

Systems and methods for providing oral devices using at-home dental impression kits are disclosed herein. An example method includes scheduling an at-home dental impression kit to be sent to a user that includes at least (i) one or more dental trays and (ii) one or more sets of dental putty that are configured to capture the gingiva of the user without distorting the gum lines of the user. The example method further includes scanning a first impression that is representative of the user’s upper jaw, and a second impression that is representative of the user’s lower jaw. The example method further includes generating a digital rendering of an oral device, and uploading the digital rendering to an application for viewing by the user. The example method further includes fabricating the oral device based upon digital rendering, and scheduling the oral device to be sent to the user.

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.

A method according to the disclosure herein includes producing a mold having a base is based on a digital model of a patient mouth, a first mold portion monolithically formed with the mold base and defining a U-shaped recess, and a second mold portion shaped to correspond the U-shaped recess; aligning the first mold portion and the second mold portion; filling the U-shaped recess with a wax; and removing the second mold portion to result in a wax mold comprising the wax, the mold base, and the first mold portion.

To easily generate three-dimensional data necessary for creating a fabricated object, even when a user does not know the position information of a patient's missing teeth or abutment teeth.SOLUTION: Implemented in a computer are: a determination unit configured to identify specific colored portions corresponding to a fabricated object on a three-dimensional tooth model according to three-dimensional tooth data; a generation unit configured to generate three-dimensional data of the fabricated object on the three-dimensional tooth model based on the specific portions identified by the determination unit; and an output unit configured to output the three-dimensional data of the fabricated object generated by the generation unit.SELECTED DRAWING: Figure 3

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.

The invention discloses a dental impression silicone rubber material and a preparation method thereof, and relates to the technical field of dental impression materials. The raw materials of the dental impression silicone rubber material comprise a matrix component and a catalytic component in a mass ratio of 1: (0.8-1.2), the catalytic component contains a ternary self-assembly catalyst, and the effective content of Al in the ternary self-assembly catalyst is 500-900 ppm, the effective content of Pt in the ternary self-assembly catalyst is 100-500 ppm, and the effective content of Ti in the ternary self-assembly catalyst is 800-1100 ppm. According to the invention, sol constructed by Al and Ti is used as a carrier to load Pt, so that a stable ternary network structure is formed. Pt is physically isolated in a water environment by the structure, electrons are transferred to Pt through oxygen vacancies, the d-band center is reduced, and the catalytic efficiency is improved. On the premise of maintaining or shortening the curing time, the Pt ion release amount can be remarkably reduced, and the cytotoxicity can be reduced.

The utility model discloses a disinfecting and flushing device for an oral cavity impression, and relates to the technical field of oral cavity impression disinfection. Comprising a flushing cylinder with a supporting rod arranged at the bottom, the bottom of the flushing cylinder is connected with a disinfection cylinder communicated with an inner cavity of the flushing cylinder, an annular pipe is installed at the upper end of the outer wall of the flushing cylinder, the annular pipe is connected with a flushing pipe extending into the flushing cylinder, a disinfectant conveying pipe is arranged on one side of the disinfection cylinder, and a U-shaped rod is arranged on the flushing cylinder in a liftable mode. One arm of the U-shaped rod is located in an inner cavity of the flushing cylinder and connected with a containing basket for containing the oral cavity impression, the outer wall of the flushing cylinder is fixedly connected with a guide sleeve, and one arm of the U-shaped rod is located outside the flushing cylinder and movably penetrates through the guide sleeve. According to the disinfecting and flushing device for the oral impression, the oral impression is placed in the placing basket, water can be conveniently discharged from the flushing pipe to clean the oral impression, and the placing basket can be conveniently moved downwards into the disinfecting cylinder, so that the oral impression can be soaked and disinfected through a disinfectant, and the oral impression can be conveniently taken out from the placing basket after being cleaned.

This invention discloses a three-quadrant split-type oral impression tray and its usage method. The tray is composed of a left posterior tooth component, a right posterior tooth component, and an anterior tooth component that can be detachably assembled. The left and right posterior tooth components are symmetrically structured, and each has a pair of L-shaped protrusions along its length. The anterior tooth component has corresponding mating grooves at the L-shaped protrusions. The metal connectors adopt a foolproof asymmetrical tenon design. After being inserted into the mating grooves, they achieve smooth locking through precise clearance tolerances. At the same time, magnetic suction pieces are pre-installed in the mating grooves. The tray can be quickly disassembled into three independent units, adapting to various scenarios of partial impression taking for single jaw full teeth, anterior teeth, and anterior teeth and unilateral posterior teeth. When taking an impression, the surface contact between each component and the oral tissue ensures stable support. When demolding, linear separation is achieved by disassembling the components to disperse resistance. All connectors and mating structures are located at the bottom of the tray, completely avoiding encroachment on the operating space outside the oral cavity.

1. The name of the design product: hand grab the dental impression (rabbit). 2. The use of the design product: for infant pacification, teething and play. 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 present invention is related to a curable composition for dental impression comprising: a curable base composition and a surfactant system comprising a first surfactant, which is at least one compound having formula (I) and a fluorotelomer having formula (II), which works synergistically with the fluorotelomer so as to permit the composition to surprisingly have a lower contact angle; these results are reached with relatively low concentrations of biodegradable surfactants.

Disclosed is a dental impression-taking tray comprising a frame unit and a molding unit made of different materials, wherein, after margin formation through thermoforming of a tray molding unit, final impression taking and intermaxillary relation acquisition may be performed immediately at once in a clinic during a patient's first visit. The dental impression-taking tray according to one aspect of the present invention may comprise a maxillary tray and a mandibular tray, each comprising a non-deformable frame unit arranged in a U-shape along the dental arch, and a thermoformable unit arranged and coupled to enclose an outer surface of the frame unit and capable of being thermoformed in response to temperature changes.

The utility model provides a stable and accurate dental impression manufacturing device, which relates to the field of dental impression manufacturing equipment, and comprises a handle, the bottom of the handle is fixedly connected with a stabilizing component, a limiting block is driven to move, and when a movable column is not limited by a limiting groove, the movable column is rotated; a movable column drives an adjusting block and a fixed shell arranged on the adjusting block to rotate, then a servo motor is started, the servo motor drives a second threaded rod, the second threaded rod drives a sliding shell arranged on the second threaded rod to slide along the fixed shell while rotating, and the second threaded rod drives a first threaded rod to rotate; the first threaded rod drives the sliding inner shell and the fixing piece to extend out, meanwhile, the fixing piece and the jaw of a patient are fixed, then the movable column and the limiting block on the movable column are moved into the limiting groove again, and the probability that the edge of a false tooth is not attached to the gingiva is reduced through the device; and the influence on the stability and comfort of the false tooth is reduced.

The invention relates to an oral cavity digital impression instrument and a control method thereof, and belongs to the technical field of medical instruments. The oral cavity digital impression instrument comprises a processing chip and a network module, the method is applied to the processing chip, and comprises the following steps: acquiring positioning information through the network module; and when the positioning information is not within the first preset range, switching the oral cavity digital impression instrument into a locking state, and sending position abnormal information to the server through the network module. The technical problem of low safety in the prior art can be solved.

This invention proposes a method for fabricating an immediate digital implant guide, comprising: S1: acquiring a patient's dental impression and taking CBCT images; S2: identifying the positioning anchor point information on the CBCT image, registering it with the positioning anchor point coordinates of the dental model tray, placing the simulated implant according to the missing tooth location, and obtaining its spatial coordinate position information; S3: pouring quick-setting plaster to fabricate a plaster positive mold; S4: fixing the plaster positive mold onto a guide ring placement device, calculating the movement parameters of each axis of the guide ring placement device, and operating the guide ring placement device to move the guide pin and plaster positive mold to the required positions and angles respectively; S5: curing the guide ring onto the surface of the plaster positive mold using light curing, removing the guide pin, fabricating a film on the surface of the plaster positive mold, shaping and trimming, polishing, and sterilizing before use. This method improves the implantation accuracy and is simple, fast, economical, and practical. This invention also proposes a corresponding coordinate transformation mold and guide ring placement device.

A computer-implemented method and system of determining a material surface from a volumetric density file includes generating a density frequency distribution of a volumetric density file of a dental impression and determining an iso-value of density between air and a particular material in the density frequency distribution. A computer-implemented method and system of creating a digital model from a CT scan of a physical dental impression includes selecting an iso-value of density for a digital volumetric density file having one or more voxels, generating one or more digital surface points in virtual 3D space for each of one or more voxels, and selecting a subset of digital surface points from the one or more digital surface points. A computer-implemented method and system of optimizing a digital surface includes moving one or more digital surface points to satisfy a criteria of optimum digital surface selection.

The utility model relates to the technical field of oral cavity digital impression instruments, in particular to a calibration device for an oral cavity digital impression instrument, which comprises a calibration device body, the left end of the calibration device body is provided with a working end, and the right end of the calibration device body is connected with a wire harness. A protection device is movably connected to the outer surface of the calibration device body in a penetrating manner, the protection device comprises a first shell, the right end of the first shell is fixedly connected with a second shell, the second shell and the first shell are of an integrated structure, the height of the first shell is smaller than that of the second shell, a notch is formed in the second shell, and the first shell is fixedly connected with the second shell. The width of the second shell is the same as that of the first shell. According to the calibration device for the oral cavity digital impression instrument, the working end can be protected by arranging the protection device, and sundries and the like are prevented from being in contact with the working end.