32 results about "Dental use" patented technology

The invention provides a rapid sintering method of zirconia ceramic for dentistry and zirconia ceramic, the rapid sintering method of zirconia ceramic for dentistry comprises the following steps: obtaining a pre-sintered body prepared from zirconia powder with stable yttrium oxide, and obtaining a standard active sintering temperature of the zirconia powder; the pre-sintered body is subjected to final sintering in a preset final sintering stage, the zirconia ceramic is obtained, the preset highest sintering temperature in the preset final sintering stage is higher than the standard active sintering temperature, and the difference value between the preset highest sintering temperature and the standard active sintering temperature ranges from 10 DEG C to 60 DEG C. According to the embodiment of the invention, the preset highest sintering temperature in the preset final sintering stage is set to exceed the standard active sintering temperature by 10-60 DEG C, so that the highest sintering temperature of the final sintering process is improved, the final sintering time of the zirconia ceramic is shortened, the production efficiency of the zirconia ceramic product is improved, and the production cost is reduced. And meanwhile, the material can obtain excellent mechanical properties and transparency within an extremely short time.

1. The name of the design product: dental bone powder conveyor. 2. The use of the design product: bone powder conveyor for dental use. 3. The design features of the design product: in shape. 4. The picture or photo that best shows the design features: perspective view.

1. Name of the product in this design: Ultrasonic air-blasting periodontal treatment device with graphical user interface. 2. Purpose of this design: For dental use in removing tartar and plaque from the surface of teeth, especially irritants such as tartar and plaque located below the gum line. 3. The key design features of this product are its shape, pattern, color, and the graphical user interface and displayed content on the screen. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color. 6. Purpose of the graphical user interface: to select cleaning modes, set different parameters, and display equipment operating status information.

1. The name of the design product: mouth opener (for dental use). 2. The use of the design product: the design product is used for dental mouth opener. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

1. Name of the design product: automatic positive pressure film press for dental use. 2. Use of the design product: for making dental film. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view 2.

A weighted blanket having a weighted insert positioned between two outer layers with said weighted insert having a plurality of sealed pockets.

The present invention provides a paste-form two-pack type dental curable composition having an adequate working time range and superior bond strength to dentin, in addition to showing small variation in working time, small decline in bond strength to dentin, and low risk of paste solidification over extended storage. The present invention relates to a paste-form two-pack type dental curable composition comprising: a first agent that comprises an acidic group-containing polymerizable monomer (A), an acidic group-free polymerizable monomer (B), an organic peroxide (C), a nitrogen atom-containing ligand (D), and a filler (E); and a second agent that comprises an acidic group-free polymerizable monomer (B), a thiourea compound (F), and a filler (E).

The utility model belongs to dental instrument field, concretely is a kind of biological ceramic material conveyor for dentistry. Biological ceramic material conveyor for dentistry, including vertical presser body, the one side of vertical presser body is connected with the curved metal pipeline, for conveying dental material by metal pipeline;Vertical presser body near metal pipeline side is equipped with handle, handle can slide in groove and pass through guide wire and specify the location of dental material. Vertical presser body other side is equipped with pressurizing needle, for pressurizing and extruding dental material bubble or interstice. Guide wire is connected to handle, and the diameter of both ends of guide wire is greater than the middle section. The utility model integrates the integrated instrument of conveying and vertical pressurizing function, can realize the accurate conveying and dense tamping of material without changing tool.

The invention belongs to the technical field of medicine, and particularly relates to a material disinfection device, in particular to a dental sterilization system and a working method thereof.The dental sterilization system selects a corresponding cleaning mode through a control module according to the type of an appliance needing to be cleaned; according to the cleaning mode, the sterilization bin, the first electromagnetic valve, the high-pressure steam tank, the second electromagnetic valve, the third electromagnetic valve, the sewage pump, the steam generation device, the water inlet pump, the fourth electromagnetic valve and the vacuum pump are controlled to work, cleaning of the appliances is completed, then complete cleaning of the appliances is achieved, and the sterilization and disinfection effect is ensured.

1. The name of the design product: head-mounted spotlight (for dental use). 2. The use of the design product: head-mounted spotlight for dental use. 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 name of the design product: disposable saliva suction tube (for stomatology). 2. The use of the design product: the disposable saliva suction tube for oral treatment. 3. The design points of the design product: the shape of the product. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to an abrasive blank and a dental prosthesis, and a method for preparing the same. The invention provides a grinding blank with a multi-layer structure and excellent aesthetics and a preparation method thereof. The present invention pertains to a dental polishing blank having a polishing blank part having a laminated structure of two or more layers, in which a main body layer (3) is present on the inside of an enamel layer (1), the main body layer (3) has a bottom surface and a side surface, and the side surface has a shape having a portion perpendicular to the bottom surface.

The utility model discloses a hydrophobic and breathable rubber barrier for oral medicine, and belongs to the technical field of oral medical assistance. In order to solve the problem that a user cannot breathe smoothly due to the airtight characteristic of a rubber barrier, the rubber barrier comprises a rubber barrier perforated plate and rubber barrier cloth, the rubber barrier cloth comprises at least one hydrophobic breathable area, the hydrophobic breathable area is made of an elastic synthetic fiber material, a latex material structure is arranged on the periphery of the hydrophobic breathable area, and the latex material structure corresponds to the position of a punching point area of the rubber barrier punching plate; the hydrophobic breathable area and the latex material structure are fixed through a binder; and the elastic modulus of the elastic synthetic fiber material is lower than that of the latex material. The oral cavity treatment device is used for oral cavity treatment.

The disclosure is directed to compositions and methods related to colorimetric detection for dental uses (e.g., detecting the presence or absence of a dental caries, and / or cavity or cavities, or precursor thereof), including a rapid unambiguous color indicator that allows for visualization by an unassisted eye based on a localized oral pH reading.

The present invention provides a zirconia pre-sintered body that exhibits suitable shade, translucency, and strength with short firing. The present invention relates to a zirconia pre-sintered body comprising a multilayer structure including at least three layers containing zirconia and a stabilizer capable of reducing a phase transformation of zirconia, the zirconia comprising predominantly monoclinic crystal system, the multilayer structure including at least two layers that differ from one another in the content of the stabilizer relative to the total mole of the zirconia and the stabilizer, the multilayer structure including at least two layers having substantially the same stabilizer content relative to the total mole of the zirconia and the stabilizer, the zirconia pre-sintered body containing a color component in all of the layers having substantially the same stabilizer content, and the layers having substantially the same stabilizer content differing from one another in the composition of the color component.

The present invention provides a zirconia composite sintered body that exhibits excellent machinability while possessing strength and translucency suited for dental use. The present invention relates to a zirconia composite sintered body comprising ZrO2, HfO2, a stabilizer capable of preventing a phase transformation of zirconia, and Nb2O5 and / or Ta2O5, wherein the total content of ZrO2 and HfO2 is 78 to 97.5 mol %, the content of the stabilizer is 1 to 12 mol %, and the total content of Nb2O5 and Ta2O5 is 1 to 9 mol % in total 100 mol % of ZrO2, HfO2, the stabilizer, Nb2O5, and Ta2O5, and the zirconia composite sintered body further comprises a Group I element, and TiO2.

The present invention provides a zirconia composite sintered body that exhibits excellent machinability while possessing strength and translucency suited for dental use. The present invention relates to a zirconia composite sintered body comprising ZrO2, HfO2, a stabilizer capable of preventing a phase transformation of zirconia, and Nb2O5 and / or Ta2O5, wherein the total content of ZrO2 and HfO2 is 78 to 97.5 mol %, the content of the stabilizer is 1 to 12 mol %, and the total content of Nb2O5 and Ta2O5 is 1 to 9 mol % in total 100 mol % of ZrO2, HfO2, the stabilizer, Nb2O5, and Ta2O5, and the zirconia composite sintered body further comprises a Group I element.

The present invention pertains to a method for treating the surface of 1-5 mol % (preferably, 3 mol %) yttria stabilized zirconia (1-5 mol % (3 mol %) yttria stabilized tetragonal zirconia polycrystal; 3Y-TZP), which is suitable for dental use, with plasma composed of nitrogen and argon mixed gas (N2 / Ar). 3Y-TZP treated by the method has excellent antibacterial properties, osseointegration ability, and adhesive performance, and thus has the advantage of being applicable to dental implants etc.

The present invention provides a dental curable composition suitable for use as a structural color-based composite resin (CR) that has high radiopaqueness in its hardened form, is suitable for aesthetic restoration, and is suitable as a low-flow type flowable CR with fluidity, low dripping, and good moldability, allowing the paste to be directly filled into the cavity from the tip of a needle. [Solution] A dental curable composition comprising: a radical polymerizable monomer component (A); spherical inorganic powder (b) having a specific average particle size and particle size distribution, consisting of spherical inorganic particles having a refractive index greater than that of (A) and its cured form; a photopolymerization initiator; and an X-ray opaque filler (D) consisting of crystalline rare earth metal fluoride particles, wherein the full width at half maximum of the maximum intensity peak derived from the crystalline rare earth metal fluoride in the X-ray diffraction pattern is 0.3° or more, wherein the X-ray opaque filler (D) is composed of aggregated X-ray opaque filler (D1) and dispersed X-ray opaque filler (D2) in predetermined proportions.

The present invention provides a dental workpiece that exhibits excellent machinability in a sintered state while possessing suitable strength for dental use. The present invention relates to a dental workpiece that exhibits an erosion rate of 8.0 μm / g or more, or a product of erosion rate (μm / g)×average crystal grain size (μm) greater than or equal to 15 μm2 / g when a spherical alumina slurry with an average particle diameter of 3.0 μm is projected in a micro slurry-jet erosion test, and that has a biaxial flexural strength of 300 MPa or more as measured in compliance with ISO 6872:2015.

The present invention provides a dental ceramic coloring solution capable of inhibiting a decrease in the strength of a dental ceramic and capable of imparting a pink color tone required in dental use. The present invention relates to a coloring solution for coloring a dental ceramic, which comprises a coloring component and a solvent, the aforementioned coloring component comprising an Er component and a Co component.

The utility model discloses an oral cavity dilator for the department of stomatology, and belongs to the technical field of medical instruments, the oral cavity dilator comprises two extension parts which move close to or away from each other and a supporting part which is fixedly arranged at one end of each extension part and is used for supporting the oral cavity; the oral cavity dilator further comprises an adjusting mechanism, an air bag and an inflation assembly, wherein the adjusting mechanism is arranged at the ends, away from the supporting part, of the extending parts and used for enabling the two extending parts to move, the air bag is fixedly arranged on the side, close to the oral cavity, of the supporting part and used for abutting against the oral cavity, and the inflation assembly is connected with the extending parts and used for enabling the air bag to expand or contract. According to the oral cavity dilator for the stomatology department, by arranging the inflation assembly connected with the extension parts, when the distance between the two extension parts is adjusted through the adjusting mechanism, the air bag can be inflated synchronously, so that the air bag is expanded to further abut against the oral cavity, the stability and the supporting force of the oral cavity dilator are improved through close contact, and meanwhile the design of the air bag enables the oral cavity dilator to be more stable. And the oppression and discomfort on oral tissues can be reduced.

The present invention provides a zirconia pre-sintered body that can be fired into a sintered body having translucency and strength suited for dental use (particularly, at the dental clinic), even with a short firing time. The present invention relates to a zirconia pre-sintered body comprising: zirconia; and a stabilizer capable of inhibiting a phase transformation of zirconia, wherein the zirconia predominantly comprises a monoclinic crystal system, and the zirconia pre-sintered body comprises a plurality of layers that differ from each other in the content of the stabilizer relative to the total mole of the zirconia and the stabilizer.

The application discloses a preparation method of high-performance titanium-zirconium alloy small-specification rod for dentistry, and comprises the following steps: firstly, taking titanium-zirconium alloy cylindrical ingot with oxygen content less than 0.15% to perform hot forming isothermal forging; secondly, performing finish forging; thirdly, after warm rolling, performing cross rolling in square, circular, flat and flat hole type in turn and two-pass circular hole type rolling; fourthly, performing cold rotary forging; and fifthly, performing vacuum annealing. By limiting the oxygen content in the raw material ingot, combining with the isothermal forging, finish forging, warm rolling and cold rotary forging processes, the grain is fully refined, the raw material ingot is fully deformed, the rod organization uniformity and stability are improved, and therefore, the titanium-zirconium alloy small-specification rod with high purity, low oxygen content, high strength and plasticity and good matching property is obtained, and is suitable for the dentistry.

1. Name of the designed product: lower side portion of the top surface portion and the front and rear side surface portions of a blank holder for dental use. 2. Use of the designed product: the designed product as a whole is used as a blank holder for dental use, and the claimed portion is used as a lower side portion of the top surface portion and the front and rear side surface portions of a blank holder for dental use. 3. Design points of the designed product: in the shape of the portion shown in solid line. 4. Picture or photograph best indicating the design points: perspective view. 5. Other matters: the claimed design is a partial design. The portion not claimed in the design is shown in broken line and single-dot chain line in the drawing. The single-dot chain line is a line indicating the boundary between the portion intended to be accepted for design registration and the other portion.

The utility model relates to the technical field of mouth mirrors, and discloses a telescopic mouth mirror for oral medicine, which comprises a main rod, sliding grooves are arranged on two sides inside the main rod, sliding blocks are slidably mounted on the inner walls of the sliding grooves, connecting rods are fixedly mounted on the outer surfaces of the sliding blocks, mounting grooves are arranged on the surface of a mirror frame, and mounting blocks are mounted inside the mounting grooves. Fixing grooves are formed in the two sides of the mounting block, telescopic rods are fixedly mounted in the fixing grooves, springs are wound around the outer sides of the telescopic rods, connecting plates are fixedly mounted at the outer ends of the telescopic rods, positioning balls are rotationally mounted on the outer surfaces of the connecting plates, positioning grooves are formed in the inner walls of the mounting grooves, and lenses are fixedly mounted on the upper portions of the mounting blocks. Through the arrangement of the lens frame, the mounting grooves, the mounting blocks, the fixing grooves, the telescopic rods, the springs, the positioning beads, the positioning grooves and the lenses, the lenses can be conveniently disassembled, and use of medical staff is facilitated.

The invention provides a dental lithium silicate glass composition, a dental lithium silicate glass ceramic and a dental crown restoration. The dental lithium silicate glass composition can provide a dental lithium silicate glass ceramic capable of efficiently precipitating main crystals (lithium disilicate and / or lithium metasilicate) even after heat treatment. The dental lithium silicate glass composition is composed of the following components (excluding Al2O3): 60.0-80.0 wt% of SiO2; li2O: 10.0 wt% to 17.0 wt%; k2O: 0.5 to 10.0 wt%; zrO2: 0.5 to 5.0 wt%; 1.0 to 6.0 wt% of a nucleating agent; 0.0 wt% of a glass stabilizer; and 0 to 10.0 wt% of a coloring agent.

A dental irrigation system delivers highly oxygenated water to each dental office chair, thus enhancing oral hygiene and patient outcomes, and includes water flowing into a hydrophobic microporous hollow fiber gas infusion module connected directly to the main waterline. Simultaneously, oxygen from an oxygen generator is introduced into the gas infusion module, facilitating efficient dissolution into the water and ensuring a bubble-free mixture. The highly oxygenated water then passes through a water filtration system, removing impurities to guarantee cleanliness and safety for dental use. Subsequently, the oxygen-enriched water enters a distribution header, directing it through individual water lines to each dental office chair and irrigation system. Additionally, the system can be implemented for home use with an oxygen-enhanced water flosser or oral irrigator.