Abstract: A dispenser includes a guide shaft, a housing, accommodating the guide shaft, and supporting the guide shaft movably frontward and rearward along an axial direction, a slide block slidably mounted on the guide shaft, a piston shaft having one end mounted on the slide block, and another end projecting from the housing as the slide block moves frontward, a handle projecting from the housing, a slide bar having one end rotatably supported on the housing, and another end approaching the handle when rotated, and an engaging piece provided on the one end of the slide bar and engaging a guide groove formed in the guide shaft, wherein the engaging piece moves the guide shaft frontward when the other end of the slide bar is rotated to approach the handle due to an operation of a user.

Abstract: A dispenser includes a guide shaft, a housing, accommodating the guide shaft, and supporting the guide shaft movably frontward and rearward along an axial direction, a slide block slidably mounted on the guide shaft, a piston shaft having one end mounted on the slide block, and another end projecting from the housing as the slide block moves frontward, a handle projecting from the housing, a slide bar having one end rotatably supported on the housing, and another end approaching the handle when rotated, and an engaging piece provided on the one end of the slide bar and engaging a guide groove formed in the guide shaft, wherein the engaging piece moves the guide shaft frontward when the other end of the slide bar is rotated to approach the handle due to an operation of a user.

Abstract: A dental syringe that facilitates the expulsion of air from a syringe body when dental material is injected into the syringe body from a discharge port of the syringe body and the discharge of the dental material from the syringe body during use for treatment. The syringe includes a syringe body, a plunger, and an O-ring that is mounted in an engagement groove formed at a front end portion of the plunger. The engagement groove includes a shallow groove at the front end side and a deep groove at the rear end side. When the dental material is injected into the syringe body, the O-ring engages with the shallow groove, and when discharging the dental material, the O-ring engages with the deep groove.

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: Provided is a dental syringe that enables easy discharge of air within a syringe body 1 to the exterior while injecting dental material into the syringe body 1 from a discharge port 1a of the syringe body 1 and easy discharge of the dental material that has been injected into the syringe body 1 during use for treatment. A dental syringe includes a syringe body 1, a plunger 2, and an O-ring 3 to be mounted in an engagement groove 2a formed along a circumferential direction of a front end portion of the plunger 2. The engagement groove 2a includes a shallow groove 2aa at the front end side and a deep groove 2ab at the rear end side.

Abstract: An nozzle tip capable of securely and unremovably locking after temporary fixing at a tip-end of a discharging portion of a mixing tip is provided. The nozzle tip includes an insertion portion having a cylindrical portion for temporary fixing, a taper portion, and a cylindrical portion for engaging. The cylindrical portion for temporary fixing has the same outer diameter as an inner diameter of a protrusion portion of the mixing tip. The taper portion is continuously provided on the cylindrical portion for temporary fixing and has a step portion. The cylindrical portion for engaging is continuously provided on the step portion of the taper portion and has an outer diameter which is equal to the diameter of the taper portion at the step portion and a length longer than a length of the protrusion portion of the mixing tip.

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: To minimize used titanium materials, a container for an implant fixture has a housing main body 1, an implant fixture holding member 2, and a cap 3, the main body 1 is made of glass or the like and has guide grooves 1a in an axial direction, the holding member 2 is made of titanium and includes a bottom part 2a contacting with a top of a dental implant fixture X, and three or more guide parts 2b surrounding the fixture X, the guide part 2b has an insertion lock part 2ba to be locked in the guide groove 1a, the cap 3 is made of a resin, has a press part 3a, and seals the upper surface of the main body 1, and the press part 3a contacts with an engagement hole Xa and/or an upper surface Xb of the fixture X to press the fixture X.

Abstract: To minimize used titanium materials, a container for an implant fixture has a housing main body 1, an implant fixture holding member 2, and a cap 3, the main body 1 is made of glass or the like and has guide grooves 1a in an axial direction, the holding member 2 is made of titanium and includes a bottom part 2a contacting with a top of a dental implant fixture X, and three or more guide parts 2b surrounding the fixture X, the guide part 2b has an insertion lock part 2ba to be locked in the guide groove 1a, the cap 3 is made of a resin, has a press part 3a, and seals the upper surface of the main body 1, and the press part 3a contacts with an engagement hole Xa and/or an upper surface Xb of the fixture X to press the fixture X.

Abstract: For easier and surer fixing to a syringe holder, a mixing tip fixed at two portions of a top end of a syringe holder (X) containing two parallel syringes (Y, Y) comprising: a housing (2) including a mixing element (1); a paste guiding member (3) including paste inlets (3a) attached to nozzles of two syringes (Y, Y), and flow paths (3b) to introduce pastes extruded from the syringes into the housing (2) through the paste inlets (3a); and two locking members fixed at or integrally formed with the paste guiding member (3) or the housing (2) to be locked to the syringe holder (X), wherein the two locking members are a pawl part (4) locked with a locking hole (Xa) formed at the syringe holder (X) and a projection part (5) inserted into a hole part (Xb) provided at the syringe holder (X), or two pawl parts (4, 4).

Abstract: To minimize an amount of unmixed fluids remaining inside, the mixing element includes right-handed and left-handed spiral blades (1) having a shape twisted 180 degrees and being alternately and continuously provided in the axial direction to make end parts (1a) of the adjacent spiral blades to orthogonally cross, turbulence generating parts (1c) divided by an extension face (1ca) ad a rising face (1cb) are formed at four portions, which continue toward a front-side side edge (1aL1) and an outer periphery at a part spirally continuing to the back side from the front-side side edge (1aL1) and are surrounded by a front-side end edge (1cL1), an axial-side edge (1cL2) and a front-side edge (1cR1), and an inflow part (1d) formed by notching a portion from an end-part starting edge to a back-side end edge is formed at a back-side side edge opposed to positions of the turbulence generating part (1c).

Abstract: To prevent photo-activation of a photopolymerization catalyst in pastes of an adhesive for a dental bracket in a mixing tip and to enable a dentist to visually confirm the pastes, a mixing tip includes a housing (2) having a mixing element (1), a paste guiding member (3) fixed to the housing (2), and a locking member fixed or integrally formed on the paste guiding member (3) or the housing (2), the guiding member includes paste inlets (3a) and flow path parts (3b), the locking member has a pawl part locked with a locking hole of the syringe holder and a projection part inserted to a hole part of the syringe holder, or has two pawl parts locked with two locking holes, and the housing (2) and the paste guiding member (3) are made of a colored plastic material only transmitting light except light having the photo-activating wavelength.

Abstract: For easier and surer fixing to a syringe holder, a mixing tip fixed at two portions of a top end of a syringe holder (X) containing two parallel syringes (Y, Y) comprising: a housing (2) including a mixing element (1); a paste guiding member (3) including paste inlets (3a) attached to nozzles of two syringes (Y, Y), and flow paths (3b) to introduce pastes extruded from the syringes into the housing (2) through the paste inlets (3a); and two locking members fixed at or integrally formed with the paste guiding member (3) or the housing (2) to be locked to the syringe holder (X), wherein the two locking members are a pawl part (4) locked with a locking hole (Xa) formed at the syringe holder (X) and a projection part (5) inserted into a hole part (Xb) provided at the syringe holder (X), or two pawl parts (4, 4).

Abstract: To minimize an amount of unmixed fluids remaining inside, the mixing element includes right-handed and left-handed spiral blades (1) having a shape twisted 180 degrees and being alternately and continuously provided in the axial direction to make end parts (1a) of the adjacent spiral blades to orthogonally cross, turbulence generating parts (1c) divided by an extension face (1ca) ad a rising face (1cb) are formed at four portions, which continue toward a front-side side edge (1aL1) and an outer periphery at a part spirally continuing to the back side from the front-side side edge (1aL1) and are surrounded by a front-side end edge (1cL1), an axial-side edge (1cL2) and a front-side edge (1cR1), and an inflow part (1d) formed by notching a portion from an end-part starting edge to a back-side end edge is formed at a back-side side edge opposed to positions of the turbulence generating part (1c).

Abstract: In order to suppress adhesion of oral contamination substances such as protein and oral bacteria causing oral disorders such as ozostomia on a surface of a dental prosthesis, so as to prevent a biofilm such as dental plaque from being formed thereon, the coating material composition for a dental prosthesis comprises 1 to 150 g/l of a copolymer of 2-methacryloyloxyethylphosphorylcholine and a (meth)acrylate contained in at least one solvent selected from water, ethanol, propanol, butanol, pentanol and acetone, an amount of the 2-methacryloyloxyethylphosphorylcholine component in the copolymer being 3 to 90% by mole.