54 results about "Impressions materials" patented technology

The utility model belongs to the technical field of dentistry, and particularly relates to an automatic dental alginate impression material distributing device which comprises a shell, a weighing sensor is fixedly connected to the bottom of the inner wall of the shell, two positioning blocks are fixedly connected to the top of the weighing sensor, a tray is fixedly connected to the tops of the positioning blocks, and the tray is fixedly connected to the bottom of the shell. A button is fixedly connected to the bottom of the tray, a buzzer is fixedly connected to the top of the weighing sensor, a detachable plate is clamped to the side face of the shell, a pretreatment device used for crushing large materials in advance is arranged at the top of the shell, and the pretreatment device comprises a pretreatment box. The pretreatment box penetrates through and is fixedly connected to the top of the shell, and a rotating shaft is rotationally connected to the top of the inner wall of the pretreatment box. The problems that large materials cannot be crushed, a discharge port can be blocked, manual intervention is needed for cleaning and screening, time is wasted, and the material distribution efficiency is low are solved.

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.

Provided is an impression material cartridge gasket including: a gasket body that moves up and down along the inner wall surface of a cylinder according to the charging and discharging of a liquid chemical; and a sealing member coupled to the outer circumferential surface of the gasket body. The gasket body includes: a contact jaw that is formed, protruding radially outward, along the height direction of a side wall and contacts the inner wall surface of the cylinder; an air retention groove which is recessed radially inward from the lower portion of the contact jaw and in which air is retained; and an accommodation groove which is recessed radially inward between the upper surface of the gasket body and the contact jaw and to which the sealing member is coupled. At least one air vent hole is provided on a plate surface of the contact jaw in a circumferential direction.

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 a composite closed window transfer rod, which is arranged on an implant abutment and comprises an impression transfer cap and an impression transfer main body, the impression transfer cap comprises a fixing part and a connecting part, the fixing part is used for fixing impression materials, and the connecting part is provided with a concave first blind hole; the impression transfer main body comprises a clamping part and a rotary connection part, the clamping part is clamped in the first blind hole to connect the impression transfer cap and the impression transfer main body, and the rotary connection part is in threaded connection with the implant abutment, so that the impression transfer cap and the impression transfer main body are fixedly connected with the implant abutment, and window closing transfer and impression taking during false tooth repair are facilitated. The annular groove between the two layers of flanges of the fixing part of the impression transfer cap has a flow guide function and can be better combined with the impression material, the two flat sections of the two layers of flanges have a positioning function, the impression transfer cap is prevented from rotating in the impression material, displacement of the impression transfer cap is avoided, and the precision of window closing transfer and mold taking is improved.

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;

The oral cavity impression tray comprises a tray body provided with a tray handle and a tongue-shaped plate, the tray body is provided with a first notch and a second notch which correspond to dentitions on the two sides, and a plurality of blocking strips which are used for blocking impression materials and are of the same structure are arranged on the outer sides of the first notch and the second notch. One side of the first notch is connected with a positive pressure pipe for blowing air to the first notch and the second notch, a first overflow frame and a second overflow frame which are located behind the blocking strip are fixedly arranged on the outer side of the first notch and the outer side of the second notch correspondingly, and one side of the second notch is connected with a negative pressure pipe. The negative pressure pipe is provided with a first suction pipe and a second suction pipe which extend into the first overflow frame and the second overflow frame. According to the utility model, the impression material can be prevented from being mistakenly swallowed and sucked at the throat part, the safety of a patient is ensured, the strong negative pressure formed by ultrahigh adaptation of the tray body and mouth mucosa after the impression material is solidified can be removed, and the tray body is ensured to be smoothly taken out.

The invention provides a dental silicone rubber impression composition, a dental silicone rubber impression material kit and a preparation method and application of the dental silicone rubber impression composition and the dental silicone rubber impression material kit, D50 of reinforcing filler in the impression composition is 5-22 microns, and the particle size distribution of the reinforcing filler in the impression composition meets the conditions that D60-D40 is smaller than or equal to 12 m and D40-D20 is smaller than or equal to 12 m at the same time. The particle size distribution of the reinforcing filler in the impression material is controlled to be concentrated enough, so that the initial setting time of the silicone rubber impression material is controllable, and meanwhile, the silicone rubber impression material with relatively high overall strength is also obtained.

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.

This invention provides a dental silicone rubber impression composition, a material kit, and a method for preparing the same. The impression composition includes a reinforcing filler with a nanometer-sized particle size, and the particle size distribution of the reinforcing filler satisfies D[4,3]-D[3,2]=A, where A is 0~200nm. The above-mentioned solution provided by this invention ensures that the dental silicone rubber impression material has lower roughness while maintaining its mechanical properties. It also avoids the agglomeration of reinforcing particles within the silicone rubber matrix, which could affect the overall flowability of the impression material, and improves processing difficulty. Furthermore, the impression material exhibits a faster curing speed.

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.

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.

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 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 provides a scanning rod and a digital method for taking a complete impression of the root canal using the scanning rod, relating to the field of oral medicine. The method includes: scanning the patient's oral cavity using an intraoral scanner to obtain an initial digital model of the dentition; injecting a silicone rubber lightweight material into the root canal post using a syringe, and inserting the scanning rod into the root canal post while waiting for the impression material to cure; scanning the affected tooth with the scanning rod and a predetermined number of teeth on either side of the affected tooth using the intraoral scanner to obtain the scanning rod and the digital model of the dentition. The digital method for taking a complete impression of the root canal using the scanning rod provided by this invention avoids the problems of reduced accuracy and patient discomfort caused by large-area impression taking. By matching the digital model of the dentition, the scanning rod and the digital model of the dentition, and the digital impression of the post, the post data obtained is reduced, and the accuracy of the post is improved.

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: digital silica gel pad toothpaste. 2. The use of the design product: silica gel toothpaste for teething of infants. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The invention relates to an oral impression material blending device which comprises a mounting support, a liquid storage tank, a pump and a driving motor are mounted on the mounting support, and a first connecting piece of a cylindrical structure is fixedly connected to an output shaft of the driving motor; the first connecting piece is rotationally sleeved with a second connecting piece, a sealed cavity is formed by the second connecting piece and the outer wall of the first connecting piece, and the second connecting piece is installed on the installation support. An inlet and an outlet of the pump are correspondingly communicated with the liquid storage tank and the sealed cavity through guide pipes; a water flow sensor is arranged on the guide pipe for communicating the outlet of the pump with the sealed cavity; the lower portion of the first connecting piece penetrates out of the lower end of the second connecting piece, and a plurality of connecting piece clamping blocks are arranged on the outer wall of the first connecting piece in the circumferential direction at intervals. A first connecting piece through hole is formed in the cylinder wall, corresponding to the sealing cavity, of the first connecting piece; and a control panel is also arranged on the mounting bracket. The device is compact in structure and convenient to use, the efficiency is improved, and the dosage of liquid added during film printing material blending can be accurately controlled.

This invention relates to the field of dental medical device technology, providing a method and apparatus for testing the curing state of silicone rubber impression materials. The testing method includes: placing the silicone rubber impression material to be tested between a connector and a test base, with a portion entering the hole structure of the connector under pressure, forming a force-transmitting connection structure with a first slider and a second slider; controlling a driving device to move the entire force-transmitting connection structure toward a displacement sensor; after the first slider reaches a preset displacement, controlling the driving device to retract; acquiring the rebound displacement of the second slider; and determining the curing state of the silicone rubber impression material based on the rebound displacement. This invention automates and intelligently judges the testing process, reduces manual operation, improves testing efficiency, and allows for flexible adjustment of the preset displacement and preset rebound distance according to different testing needs, thereby comprehensively and accurately reflecting the curing characteristics of the silicone rubber impression material.

This invention discloses a jaw position recording device for digital complete dentures, relating to the field of oral clinical medicine. It includes an intraoral jaw position recording main body, a handle, a facial marking plate, an intelligent detection module, and a data processing and transmission module. The intraoral jaw position recording main body also includes a personalized maxillary tray and a mandibular occlusal base. An interface is provided at the center of the tray, and both the handle and the facial marking plate are adapted to the interface. One of the handle or the facial marking plate is detachably connected to the tray. The tray is used to hold impression material to obtain jaw position impressions, the handle is used to cooperate with the tray to perform jaw position recording operations, and the facial marking plate is used to provide reference marks for facial scanning. This invention can simultaneously collect jaw position and facial data, solving the problems of data fragmentation, insufficient personalization, and low communication efficiency in existing technologies. It improves the accuracy, aesthetics, and treatment efficiency of complete denture restorations and is suitable for jaw position recording and design in digital complete denture restorations.

A customized tray using a shape memory material, and a manufacturing method therefor are disclosed. The customized tray using a shape memory material, according to one embodiment of the present application, may comprise a body part, which is manufactured using a shape memory material, has, in the upper surface thereof, an accommodating recess for accommodating a tooth part of a patient, and has, along the inner periphery of the accommodating recess, an impression material space into which an impression material for obtaining an impression of the tooth part is injected.

A digital intermaxillary relationship recording device for denture fabrication is disclosed, which completes the acquisition of intermaxillary relationships necessary for denture fabrication during the patient's first visit, determines the aesthetic position of the anterior teeth using a facial scanner, and allows for the accurate fabrication and provision of dentures on the same day or in two visits. One aspect of the present invention of the digital intermaxillary relationship recording device for denture fabrication includes a maxillary plate on which impression material is provided on the upper surface so as to be able to acquire an impression of the maxillary gums, a mandibular plate on which impression material is provided on the lower surface so as to be able to acquire an impression of the mandibular gums, and an anterior tooth guide member which can be detachably coupled to the anterior end of the maxillary plate, can acquire an index relationship with the lips after coupling, and can reproduce the aesthetic position of the anterior teeth via a facial scanner in the coupled state.

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.