Abstract: Provided is an implant fixture storage case capable to prevent mistake in combination. The implant fixture storage case comprises an implant fixture holding member (20) for holding an implant fixture and which has a length based on the implant fixture to be held, and a storage main body (10) on which a value related to the length of the implant fixture is displayed, and which holds the implant fixture holding member thereinside and has at least one part being transparent, and a position display means (12) provided to the storage main body based on a position of an end portion of the implant fixture holding member, wherein the end portion of the implant fixture holding member and the position display means are viewable at the same time.

Abstract: Provided is a scanning instrument that can obtain information about position and inclination of a central axis of an implant fixture used for an implant bridge with a high accuracy. A scanning instrument (10, 110) to be attached to an analog (20) that is embedded in a model, the scanning instrument comprising a main body (11, 111) having a cylindrical shape, a fixation member (12) to attach the main body to the analog, and a reference point (13) to obtain information about position and inclination of a central axis of the analog by using a pattern projection method.

Abstract: Provided is a dental gypsum powder having flowability, setting time, and strength of a set material that are suitable for producing a dental model. The dental gypsum powder contains 100 parts by weight of gypsum hemihydrate, 2 to 4 parts by weight of gypsum dihydrate, from 0.5 to 3 parts by weight of potassium sulfate, from 0.05 to 0.8 parts by weight of a polycarboxylate water reducing agent, and not contain more than 0.3 parts by weight of other additives. It is preferred that the amount of the polycarboxylate water reducing agent is from 0.15 to 0.3 parts by weight per 100 parts by weight of gypsum hemihydrate, and the amount of the potassium sulfate is from 25% by weight to the same amount of the amount of the gypsum dihydrate.

Abstract: [Problems to be Solved] To provide a blister pack which can be easily torn off and peeled by automatically adjusting a position of tearing off and peeling even if a seal member becomes diagonally with respect to a longitudinal direction of a main body portion (storage recess portion) of the blister pack. [Solution] The blister pack includes a main body portion 1 and seal member 2. The main body portion 1 includes a rectangular storage recess portion (1a) recessed at a center thereof and a plane portion for seal member adhesion (1b) provided around the storage recess portion (1a). The plane portion for seal member adhesion (1) is formed in a direction parallel with the longitudinal direction of the storage recess portion (1a), and on the right and left sides. The seal member (2) has a gripping part (2a) protruding at least one end in the longitudinal direction of the main body portion (1).

Abstract: To provide a zirconia-based composite ceramic sintered compact capable of being colored to white appropriate for a dental prosthesis while maintaining its mechanical and physical properties, and also provide a method for producing the same. The method for producing the zirconia-based composite ceramic sintered compact includes semi-sintering a zirconia-alumina composite ceramic containing an alumina particle and a zirconia particle comprising of tetragonal zirconia containing ceria of 8 to 12 mol %, forming the composite ceramic; dipping the formed composite ceramic in a neodymium ion solution or complex solution; drying the dipped composite ceramic; and finally sintering it.

Abstract: To provide a dental mixer capable of easily, certainly locking a mixing tip to a syringe body, easily removing the mixing tip, and thereby having easy handling property. The dental mixer includes a syringe body 1 and a sleeve 3. The mixing tip 2 includes a housing 2a, a paste guiding member 2b and a plate spring-shaped locking members 2c and 2c. The plate spring-shaped locking members 2c and 2c have pawl portions 2ca and 2ca on the tip-end side thereof, and the pawl portions 2ca and 2ca are locked, by elasticity, with locking grooves 1c and 1c between the syringes 1a and 1a. The sleeve 3 has a shape to cover at least the pawl portions 2ca and 2ca when sliding toward the outlet side of the housing 2a, and thereby to prevent the locking of the pawl portions 2ca and 2ca by elasticity from canceling.

Abstract: The invention provides a plastic impression tray for a lower jaw having an outer wall, an inner wall and a bottom portion and forming a U-shaped flat surface. A rim with a particular height is provided along each of upper ends of the outer wall and the inner wall, through holes with particular widths are provided with a particular relationship between the distance between the adjacent through holes and a width of the through hole, circular through holes with particular diameters are provided between the through holes in the bottom portion, and bottom portion through holes with particular widths and lengths are provided on a line connecting the bottom portion sides of the through holes which are positioned at the closest side to the end portion of the U-shaped portion in the end portion thereof, or in a closer side to the end portion than the line, respectively.

Abstract: To provide a dental abutment having an embedded part embedded into an embedding hole of a block and fixed in the embedding hole. An uniform gap for a dental adhesive can be formed along an approximately entire circumference between an outer peripheral surface of the embedded part and an inner surface of the embedding hole. The dental abutment includes a gingiva contact part 1 having a forward-thicker truncated conical shape on the intraoral side; a fitting part 2 projecting toward the jawbone side from the jawbone-side contact surface 1a of the gingiva contact part 1, and fitted into an end part on the intraoral side of the implant fixture so as not to rotate; and an embedded part 3 to be embedded. Three or more projecting line parts 5 are formed on an outer peripheral surface 3a of the embedded part 3 so as to form the uniform gap.

Abstract: A stopper storage case has openings and drill blade insertion paths. The openings are large enough to allow a spring-like engagement portion of the stopper to pass. Each drill blade insertion path is large enough to allow a drill blade to pass. Concave parts extend from the respective openings to the drill blade insertion paths and can store stoppers of different lengths. Each of the concave parts has a protrusion to be engaged in a groove in the outer peripheral surface of the stopper. Stopper holding overhangs formed at the top of each concave part are elastic enough not to interfere with insertion of the stopper from above into the concave part and removal of the stopper from inside the concave part.

Abstract: Provided is a dental prosthesis component which is a member to configure a dental prosthesis provided with an artificial tooth root, which have high strength and a good esthetic property. The dental prosthesis component (12),(13) to configure a dental prosthesis (10) provided with an artificial tooth root (12), which are made of Zr-14Nb alloy, wherein a surface layer containing ZrO2 and having a thickness of less than 80 ?m as a main ingredient is formed on the components, and the surface has a brightness of Gly 8.0 or more of the color sheets according to Practical Color Co-ordinate System 201.

Abstract: This invention is achieved to provide a water-flow ultrasonic oral-cavity cleaning device and a method for water-flow ultrasonic oral-cavity cleaning for surely and efficiently cleaning an oral cavity. In the water-flow ultrasonic oral-cavity cleaning device 1, cleaning liquid W1 from a cleaning-liquid supplying device 2 is supplied into a transducer case 21 through a supply port 26. Ultrasonic waves S1 are propagated into the cleaning liquid W1 from an ultrasonic transducer 22 mounted in a transducer mounting part 23 inside the transducer case 21. The water-flow of the cleaning liquid W1 is collected at the apical-part inside the transducer case 21, and then emitted from the issue 27 into the oral cavity, wherein power supply of 100W or less is supplied to the ultrasonic transducer 22 of 50 mm or less in diameter to propagate the ultrasonic waves S1 of 100 kHz or more to 3 MHz or less in frequency into the cleaning liquid W1.

Abstract: An orthodontic bracket with a positioning guide is produced by thinly coating a first dental photopolymerizable composition 1 on a bonding surface of each orthodontic bracket B, building a second dental photopolymerizable composition 2 adhesive to the first composition 1 on the bonding surface, adhering it to a tooth surface of a dentition gypsum model 3 reproducing a patient's dentition, a separating material being previously coated on the tooth surface of the gypsum model 3, polymerizing/curing the first and second compositions 1 and 2 by irradiating light, thinly coating a third dental photopolymerizable composition 4 on a tongue side and/or a cheek side entire surface around the orthodontic bracket B on the gypsum model 3, the third composition 4 being easily abraded when an occlusal pressure is acted, and polymerizing/curing the third composition 4 by irradiating light to be integrated with at least the second composition 2.

Abstract: Method for regeneration of mesenchymal tissue from mesenchymal cells on a porous sheet composed of bioabsorbable polymer material.

Abstract: For easily seeding cells in its scaffold, a porous cell scaffold is produced by steps of filling a guiding solution with kinematic viscosity being 50 to 450% of that of a culture medium, in a whole continuous small hole structure having hole diameters of 5 to 3200 ?m and an average hole diameter of 50 to 1500 ?m, of a sheet-shaped or block-shaped scaffold having a thickness of 2 mm or more, supplying thereafter a culture medium with cells being suspended to an upper side of the scaffold, sucking the guiding solution from a lower side of the scaffold by low suction force, and entering thereby the culture medium with cells being suspended into the whole small hole structure, where a water absorber such as a filter paper is preferably used for sucking the guiding solution by low suction force.

Abstract: An indicator is useful for detecting pressure points on a denture. The indicator is made of a composition that easily adheres to oral mucosa, has a proper viscosity in an oral cavity environment, can be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. The composition includes a fatty acid ester having a melting point of 30 to 50° C., a water-soluble high polymer, and a metal oxide. Preferably, the fatty acid is 40 to 95% by weight of the composition, the water-soluble high polymer is 1 to 59% by weight of the composition, and the metal oxide is 0.1 to 50% by weight of the composition.

Abstract: A dispensing container according to the invention includes a container body having a rod-like shape. The dispensing container is therefore compact and the user can hold the dispensing container as if the user holds a pen and use the thumb, the index finger, and any other finger to apply pressure to the dispensing container so as to dispense a drug solution. A heat insulating grip is attached to the outer circumferential surface of the container body, whereby heat originating from the body temperature of a finger of the user will not be transferred to the drug solution or volatilize it. No excessive dispensing that is not intended by the user will therefore occur. Since the container body is thin and hence unlikely crashed, the user can make adjustment of the pressure applied by the thumb, the index finger, and any other finger to readily extract a single droplet.

Abstract: To provide a dental hydraulic temporary sealing material composition setting faster than conventional composition, excellent adhesiveness with cavity, and extremely good operativity of filling in an oral cavity, the dental hydraulic temporary sealing material composition includes calcium sulfate, a vinyl acetate resin, an inorganic filler, alcohols having a boiling point of 110° C. or more, and a nonionic surfactant, whereby water on a cavity can adhere, without being repelled, to a paste surface due to hydrophilic effect between an organic solvent having proper hydrophilicity and the nonionic surfactant, the water can permeate and diffuse rapidly and stably through the inside of the paste by the hydrophilic effect so as to set faster than conventional composition, and since the hydrophilic effect is effective for adhesiveness with cavity, filling property in an oral cavity becomes extremely good.

Abstract: [Problems to be Solved] To provide fluoroaluminosilicate glass powder enabling to improve acid resistance of dental glass ionomor cement and a production method thereof. [Solution] A lanthanum compound eluted in the presence of polycarboxylic acid and water exists only in a surface layer of a fluoroaluminosilicate glass powder. An amount of the fluoroaluminosilicate glass powder is preferably 1 to 5% by weight in terms of oxide. The fluoroaluminosilicate glass powder is produced by mixing an aqueous solution of a lanthanum compound and a fluoroaluminosilicate glass powder not containing lanthanum, and heating them. The aqueous solution of lanthanum compound is an aqueous solution of a water solvable lanthanum compound, preferably an aqueous solution of lanthanum nitrite and/or an aqueous solution of lanthanum chloride.