24 results about "Permlastic" 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.

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.

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 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 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 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.

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.

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.

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 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.

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 utility model provides an oral post nuclear impression material infusion assembly which comprises an infusion head, a hollow flow channel is formed in the infusion head, and an outlet communicated with the flow channel is formed in the bottom of the infusion head. The middle section of the infusion head is provided with an easy-to-shear opening, and the easy-to-shear opening is located outside the root canal and used for shearing off the easy-to-shear opening after infusion is completed, and the cut infusion head is left in the root canal to be shaped together with an impression material. Due to the fact that the easy-to-shear opening is formed in the infusion head, the easy-to-shear opening can be sheared off after a root canal impression material is infused, and the cut infusion head is left in the root canal to be shaped together with the impression material, on one hand, the strength and the toughness of the root canal impression are greatly improved, on the other hand, the infusion head does not need to be pulled out of the root canal, and the cost is reduced. Therefore, cavitation bubbles are prevented from being generated in the root canal when the infusion head is pulled out, the strength of the root canal impression is further improved, and the risk that the root canal is broken can be effectively reduced.

A dental alginate impression material according to one aspect of the present invention contains an alginate, calcium sulfate, and an aminocarboxylic acid.

A bite fork or bite tray device with channels to facilitate flow of impression material through the substrate while held inside a patient's oral cavity to obtain bite registration or impression consisting of full or partial teeth impression or full or partial gum impression or alveolar bone or alveolar process or alveolar ridge or a combination of these. A process for use of the system for prescription or design or manufacture of an appliance by providing the necessary steps.

1. The name of the design product: water bottle (dental impression material). 2. The use of the design product: the design product is used for containing special measuring water bottle for dental impression material. 3. The design points of the design product: in the shape, pattern and combination of the design. 4. The picture or photo that best indicates the design points: perspective view 1.

Methods and apparatus for securing a dental restoration prosthesis such as a bridge or crown implant, to the jaw of a patient are provided. A dental implant is inserted into the jaw and is secured to the jawbone by osteointegration. An abutment is connected with the implant. The dental prosthesis is fitted over the abutment. A screw is inserted through an opening in the prosthesis that engages threads on the abutment to secure the prosthesis to the jaw. A cavity is formed proximal of the head of the screw below the proximal surface of the prosthesis. A flowable, two-part dental impression material is injected into the cavity. The impression material reacts to form an elastomeric plug that fills the cavity and excludes particles and liquids from the cavity. The elastomeric plug is removable from the cavity to expose the head of the screw to allow the prosthesis to be removed for adjustment or repair. Once the adjustment or repair is complete, the prosthesis is reconnected with the abutment by reinserting and tightening the screw. The elastomeric plug is inserted back into the cavity.

The invention provides an imitated dental arch former, and relates to the technical field of formers. A guide rod is fixed in the arc-shaped supporting block, the guide rod is of a bent rod structure, and the radian of the guide rod is the same as that of the arc-shaped supporting block; impression materials are adhered to the bottoms of the arc-shaped supporting blocks. According to the device, through the arrangement of the forming part, when the upper teeth extrude the auxiliary rod, if the bottom of the sliding rod cannot be completely clamped into the forming position, the two electric cylinders are controlled to stretch, when the two electric cylinders stretch, the auxiliary rod can be driven to move upwards, and at the moment, the auxiliary rod moves upwards under limiting of the upper teeth; when the impression material is completely extruded into a forming position by the bottom of the sliding rod, the two electric cylinders are controlled to stop stretching, and compared with an existing device, the device is better in adjustability and does not need to be taken out for adjustment; through the arrangement of the illuminating lamp, the oral cavity is illuminated by the illuminating lamp, so that the forming position is convenient to observe, and the practicability is high.

The utility model relates to the technical field of oral cavity medical instruments, in particular to a disposable oral cavity impression which comprises a lower tooth base layer impression frame, the front portion and the rear portion of the outer surface of the lower tooth base layer impression frame are respectively provided with five through installation fixing clamping holes, and the inner lower wall of the lower tooth base layer impression frame is fixedly connected with a flexible tongue system silica gel block. An impression mounting groove is formed between the inner lower wall of the lower tooth base layer impression frame and the flexible tongue system silica gel block, a plurality of penetrating permeation holes are formed in the inner lower wall of the impression mounting groove, a lower tooth buffer layer structure is movably clamped in the impression mounting groove, and a connecting block is fixedly connected to the right part of the outer surface of the lower tooth base layer impression frame. According to the disposable oral cavity impression, due to the reasonable structural design, the lower tooth buffer layer, the flexible silica gel block and the like, the disposable oral cavity impression is convenient to install and use, can be attached to the oral cavity structure, enables impression materials to be evenly distributed and is convenient and fast to operate, and therefore the impression manufacturing quality and efficiency are greatly improved.

A device for orally collecting multiple biomarkers of a subject includes one or more plates composed of a thermoplastic or other impression material that softens at a temperature of about 150 deg F. and hardens to complete rigidity at temperatures below about 100 deg F. The plates are shaped to fit in the subject's mouth and receive bite impressions of the teeth in the upper and / or lower jaw. The plates extend out of the mouth and provide a gripping portion that the subject pinches to create fingerprint impressions on the softened plates. A rigid body provides a mounting portion for the plates and a handle portion for a person other than the subject to hold while the samples are being collected. Roughened structures, protrusions, or grooves may be formed in the plates and body in areas that contact the subject's inner cheek surfaces, collecting and retaining saliva and skin cells.

[Problem] The purpose of the present invention is to propose an artificial nail molding method that makes it possible to easily and quickly take, in advance, a mold of human nails with high accuracy. [Solution] An artificial nail molding device comprises: an accommodation container 2000 that is in the shape of a rectangular parallelepiped elongated in the finger width direction so that customer's fingers can be inserted therein, and that comprises a vibration applying unit 4000; and an alginate impression material 3000 for acquiring a mold of nails of the customer's fingers accommodated in the accommodation container 2000. The vibration applying unit 4000 applies vibration to the alginate impression material 3000 in a state in which the customer's fingers are inserted therein.