97 results about "Impressions materials" patented technology

The disclosure relates to a method for improving digital dentistry including: providing a 3D digital impression of a craniofacial anatomy; the digital impression described in terms a plurality of cells, providing a database of a plurality of dental procedures and their corresponding criteria for allowing applicability; analyzing the cells with respect to the criteria; determining, in response to the analysis, which of the dental procedures the digital impression is usable for and which of the dental procedures the digital impression is not usable for.

An improved dental impression tray system provides a way to accommodate multiple arch sizes. The tray is adjustable and has an anterior section with two distal ends and a posterior section with two distal ends. The two sections are connected together at their distal ends. A mesh membrane extends between the sections to maintain the impression material. The ends of the posterior section include a plurality of vertical pins and a vertical opening is located adjacent each distal end of said anterior section. To adjust the size of the tray, the distal ends of the anterior section can be disconnected from said distal ends of the posterior section and then reconnected by inserting the pins into the opening. Further size adjustments can be made by removing additional pins and inserting the next remaining pins into the openings.

A method for optical intraoral imaging of oral anatomical structures via an intraoral scanner, the method comprising providing initial data related to the oral anatomical structures and / or the intraoral scanner, using the initial data to calculate the number of intraoral images to be captured via the intraoral scanner, obtaining the number of intraoral images at a given location in the oral anatomical structure via the intraoral scanner, and rendering a two-dimensional intraoral image that is more optimally exposed from at least one of the obtained intraoral images and the initial data, or from a plurality of the obtained intraoral images. The present teachings also relate to a system, a dental scanner, a software product, a use, and a storage medium.

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.

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.

The utility model relates to the technical field of dental implants, and discloses a dental implant mold taking device which comprises a tray main body, extension plates are connected in the tray main body in a sliding manner, the extension plates are symmetrically distributed, a pressing groove is formed in one side of each extension plate, an elastic spring is fixedly connected in each pressing groove, and the elastic springs are fixedly connected in the tray main body. The two sides of the tray body are each provided with a plurality of pop-up openings, one side of each elastic spring is fixedly connected with a pressing block, and the interiors of the pressing grooves and the pop-up openings are slidably connected with the pressing blocks. According to the dental implant mold taking device, through the arrangement that the size of the tray main body can be conveniently adjusted, the tray main body can be suitable for more gingiva with different sizes during use, so that the tray main body is more accurate during dental implant mold taking of a patient, and uniform distribution of an impression material can be ensured; therefore, the accuracy and the efficiency during dental implant mold taking are effectively improved.

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 utility model relates to the technical field of dental medical treatment, and discloses a dental tray which comprises a rigid plastic tray, a demolding mechanism and a clamping mechanism. According to the dental tray, a slidable and detachable mechanism is designed so that the bottom plate can be separated from the rigid plastic tray, impression materials solidified on the bottom plate can be separated from the tray by rotating the threaded rod, and the process comprises the steps that when the threaded rod rotates, the guide blocks move along the guide rails; the bottom plate is pushed to gradually slide out of the mounting groove formed in the inner wall of the tray, so that materials subjected to impression are taken out together, a threaded rod locking mechanism and the guide supporting effect of the mounting groove are designed, the situation that the materials displace in the impression process is effectively prevented, in addition, the tray is further specially provided with a clamping mechanism, and the clamping mechanism is convenient to use. According to the tray, the guide blocks and the bottom plate can be quickly disassembled and assembled, so that the bottom plate is replaceable, smooth demolding is ensured, and the practicability and convenience of the tray are improved.

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.

The invention discloses an elastomer impression material as well as a preparation method and application thereof, and relates to the technical field of impression materials. The elastomer impression material comprises a primary impression and a light body, wherein the primary impression and the light body respectively comprise a polysiloxane compound, hydrogen-containing silicone oil, a catalyst, a filler, a pigment and a fluorescent pigment. The marking efficiency of the light body in the indicating process is improved through cooperation of the pigment and the fluorescent pigment, the marking face is mainly used for marking a large continuous face, the light body is mainly used for marking lines such as gingival lines, pit fissures and palate, the color between the light body and the initial impression and the color tone and effect of fluorescent light are combined, and the marking efficiency of the light body in the indicating process is improved. The positions of gingiva, soft tissue, prepared teeth and the like of the teeth and the transition and boundary of the structure are clearly and accurately marked, the machine learning process is accelerated, and the tedious link of manual marking is omitted. The preparation method is simple, convenient and rapid, the oral cavity diagnosis and treatment efficiency and precision are improved, and a more efficient and more accurate solution is provided for application of artificial intelligence in the dental field.

The utility model relates to the technical field of oral clinic, and discloses an oral clinic impression material blending device which comprises a base, a stirring kettle fixedly installed on the upper portion of the base, a cover plate installed on the upper portion of the stirring kettle, a movable disc movably installed on the upper surface of the cover plate, and a first motor fixedly installed on the upper surface of the cover plate. A first gear is fixedly installed at the output end of the first motor, a second gear is fixedly installed on the outer side of the movable disc, an auger rod is movably installed on the lower surface of the movable disc, a rotating wheel is fixedly installed at the upper end of the auger rod, and the outer side of the rotating wheel is sleeved with a transmission belt. A stirring rod is fixedly installed on the lower portion of the movable disc. And through the arrangement of the movable disc, the first motor, the first gear, the second gear, an auger rod, a rotating wheel, a second motor, a transmission belt and a stirring rod, stirring can be more uniform, and the production quality of the impression material can be improved.

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.

An impression tray for orthodontics, which is composed of an arc-shaped sheet body capable of fitting with the dental arch space in the labial and buccal sides and the vestibular area, and a handle for supporting the arc-shaped sheet body. The cross-section of the arc-shaped sheet body is C-shaped, and a plurality of holes for temporarily holding impression material are provided on the arc-shaped sheet body. The arc-shaped sheet body has a C-shaped central side surface suitable for covering the lower teeth and the upper teeth simultaneously, and the top wall and the bottom wall of the arc-shaped sheet body are formed in a wavy curved surface manner suitable for the labial and buccal frenum parts. Thus, the impression tray can not only avoid excessive stimulation to the patient, but also is easy to demold, and is convenient for cleaning and disinfection.

The present invention provides a dental tray for making an initial impression of an edentulous jaw, the dental tray comprising: a body provided with a plurality of through holes for fixing an impression material; the handle is connected with the body; wherein the body is similar to an anatomical part in an oral cavity in shape. According to the method, the applicability, the universality and the accuracy of the preparation of the primary impression of most patients with complete toothless teeth can be improved.

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 invention discloses a rapid mold taking device for oral clinical dental implants, and relates to the technical field of dental implants. The rapid mold taking device for the oral clinical dental implant comprises a machine body, a V-shaped plate, a driving mechanism and a dental membrane mechanism, the driving mechanism comprises a right-angle square tube and a supporting plate, a micro driver is fixedly installed at the top end of the right-angle square tube, a threaded rod is rotatably installed at the center of the supporting plate, and the end of the threaded rod and the output end of the micro driver are fixedly installed; the dental membrane mechanism comprises a connecting plate and a U-shaped baffle, a push plate is fixedly connected to the side of the surface of the connecting plate, a dental tray is fixedly mounted at the end, away from the threaded rod, of the connecting plate, a square hole is formed in the middle of an inner cavity of the dental tray, a round hole is formed in the side of the inner cavity of the dental tray, and a limiting square column is fixedly connected to the middle of the surface of the U-shaped baffle. The device can be adjusted, the impression powder is fully contained, the device can adapt to teeth of different patients, and the device is convenient to take, safe, reliable and convenient to use.

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.

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.

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.