Abstract: A cartridge for receiving and dispensing a paste has a cartridge body having a front end with a lateral outlet opening for dispensing the paste material. The cartridge body has a longitudinal center axis and the outlet opening has a central axis inclined forwardly relatively to the longitudinal center axis. The outlet opening has a width measured in the direction perpendicular to the longitudinal center axis and an axial length measured in the direction of the longitudinal center axis. The width and the length are different, and the width is preferably greater than the axial length.

Abstract: A dental nozzle, cartridge, capsule or container having a porous or foam flow through applicator connected at the discharge end thereof; and having a body portion containing or receiving a low viscosity dental material. In one form, a displaceable plunger or piston is disposed within the body portion to extrude the dental material through the discharge orifice and attached flow through applicator. The foam or porous applicator may be connected to the discharge end at the time of manufacture as by molding, or by mechanically connecting or by adhering the same to the discharge orifice as part of the assembly process. The flow through applicator may be made in a variety of shapes to provide improved and controlled application of a low viscosity dental material to a dental site. Additionally, the porosity of the porous or foam material may be matched to the viscosity of the dental material to control the flow of dental material therethrough.

Abstract: A method of venting during sealing the cartridge. The cartridge body has an external wall, a generally cylindrical internal chamber wall having an internal chamber wall diameter and enclosing a cartridge chamber, and at least one channel wall forming a channel (or groove) in the chamber wall. The piston has a generally cylindrical plug wall positioned adjacent to the generally cylindrical internal chamber wall. The cylindrical plug wall has a diameter substantially equal to the diameter of the cylindrical internal chamber wall. Dental material is conveyed into the cartridge chamber. The piston is pressed into the cartridge chamber while venting gas from the cartridge chamber through the channel prior to forming a hermetic seal around the dental material in the cartridge chamber.

Abstract: A dental bleach that includes a bleaching agent and a thickening agent. The bleaching agent is typically a peroxide and the thickening agent is polyvinylpyrrolidone. A viscous or sticky dental bleach results. Optionally, a basic agent, light or heat may be added to accelerate bleaching. Bleaching may take place with the use of a dental tray. Bleach may be placed into the dental tray from a single barrel, double barrel or multi-barrel syringe containing the components of the bleach. Bleach may be placed against a flexible strip which is placed onto teeth to be bleached.

Abstract: Device for dispensing multi-component compounds, in particular for dental purposes. It is equipped with a timer for indicating one or more times which are relevant to the working of the compound. This timer can be triggered by the start and/or the end of the running of the device.

Abstract: A dental applicator for applying amalgam or other filling material to a tooth is provided, in which a plunger is arranged to reciprocate into and out of a barrel to thereby eject and administer the amalgam or filling material. The barrel and/or plunger are fabricated from plastic and/or metal or metallic material provided with a coating, to inhibit or totally prevent amalgam residue from solidifying and adhering to the barrel or plunger.

Abstract: A multi-component, mixing, storage and dispensing package (10) has a housing 11, a displaceable cavity block (20) having at least one cavity (21) therein. A vent spike block (40) having at least one spike (42) held in an opposing relation to at least one cavity (21) is provided within the housing (11). When cavity block (21) is caused to move toward the vent spike block (40) spike (42) is caused to enter a cavity (21). A vent (43) is in fluid communication through the spike (42) with a mix channel (51) and a mixing and dispensing tip (50).

Abstract: Bone tissue fragments are collected from liquid fluid being evacuated by suction from a surgical operation in bone tissue. Liquid is allowed to pass into the cylindrical sieve through one open end thereof and through the sieve wall from the inside to the outside thereof. Bone tissue fragments are collected on the inside surface of the sieve and are scraped off and deposited outside the sieve.

Abstract: A syringe-type device for supplying dental material to a dental restoration site includes a syringe body, a syringe connecting body, and an activation component. The syringe body has an outlet and a dental material retaining space for retaining therein a dental material. The syringe connecting body has an upstream opening and a downstream opening and is connectable to the syringe body such that dental material which has exited the syringe body through the outlet thereof flows through the upstream opening into the syringe connecting body and subsequently flows through the downstream opening to the dental restoration site. The activation component is disposable at the outlet of the syringe body and, in a non-actuated condition thereof, at least partially blocks the flow of dental material from the syringe body into the syringe connecting body and, in an actuated condition thereof, permits a relatively greater flow of dental material.

Abstract: An improved assembly of a syringe and a nozzle tip and method of use. The syringe includes nozzle tip having a sleeve portion that fits on the free end of the syringe barrel and a curved nozzle end. The nozzle tip may include a filter screen of preselected mesh size. In use, a preselected amount of marrow blood may be aspirated through the curved aspirating nozzle end and filter screen into the syringe barrel where it mixes with bone regeneration material therein to form a viscous fluid mixture. The nozzle tip is removed from the syringe and the mixture is expelled from the syringe and applied to a surgical site by depressing the syringe plunger.

Abstract: A process and device for decanting dental filling substances (2) into special individual containers (3) for use in dental treatment. Storage container (1) is connected leakproof and pressure sealed to conically shaped jet (4) of individual container (3). By applying pressure, dental filling substance (2) is squeezed from storage container (1) through jet (4) into the container body, thereby pushing ahead of it axially movable piston (7) until same reaches a final position determined by circuit-controlled limit stop (10). Thus, a precise dosage can be guaranteed during a long service life, even while filling several individual containers (3) simultaneously. Sensor (11), placed within the range of limit stop (10), records the final position of stop rod (6) conveying the movement of piston (7).

Abstract: To provide a capsule for a dental restoration material, by which an admixture can be administered to a site of a patient to be restored in a good state without substantially containing airbubbles, immediately after admixing a dental restoration material made of two components of a powder component and a liquid component, in the capsule including a capsule main body for forming a mixing compartment accommodating a powder component therein; a liquid cup for forming a liquid component-accommodating chamber accommodating a liquid component therein, which is engaged with the capsule main body; a plunger having, in the front end thereof, a rod-like protrusion for breaking through a second aperture in the front end of the liquid cup and then breaking through the first aperture in a front end of the capsule main body, which is engaged with the liquid cup; and a nozzle fixed or set in a front end portion of the capsule main body; provided is a mechanism in which the liquid cup engaged with the capsule main body is bac

Abstract: A dental capsule or cartridge for packing, storing and dispensing a dental filling material and the like having a body portion for containing a predetermined amount of dental material having a discharge nozzle connected at one end of the body portion and having the other end opened and sealable by a displaceable piston. A sealing cap is integrally formed at the discharge end of the discharge nozzle and is connected thereto by a frangible or weakened portion whereby upon the application of a breaking force, the sealing cap is readily separated from the discharge end of the nozzle to expose or form the discharge orifice. The sealing cap may also be provided on one end thereof with a cavity or sealing spike by which the discharge orifice may be resealed, if desired. A vent is also provided adjacent the open end of the capsule to facilitate the filling of the capsule, and which is sealed by the seating of the displaceable piston in the open end.

Abstract: A syringe is provided that has an opaque barrel and a light colored outlet portion. The opaque barrel protects dental composite material or other light-activating material contained in the barrel from premature exposure to light. The light colored outlet portion has a color that is similar to that of the dental composite material. The outlet portion may be tubular and extend coaxially within the barrel beyond the barrel. The outlet portion may include a divider that divides the material into at least two separate portions.

Abstract: A dental delivery tool sized and configured to deliver a dental composition into a dental preparation includes: (A) a hollow body configured to deliver a dental composition therefrom; and (B) a plurality of fibers coupled to at least a portion of the hollow body. A portion of the fibers extend a length “L” distally beyond the rim of the hollow body. A portion of the fibers are coupled along the wall a distance “D” proximally with respect to the rim. The distance “D” is at least about two and one half times greater than the length “L”. Employing the tool, which may be a delivery tip, for example, the interior walls of a dental preparation may be conveniently brushed or cleaned during a procedure in which a dental composition is delivered using the dental delivery tool.

Abstract: A self-shielding aspirating dental syringe includes a body having proximal and distal ends and a cavity therein for receiving a medicine cartridge. The distal end has a double-ended needle attached thereto, and the proximal end has a opening for inserting the cartridge into the cavity, and to which a plunger assembly may be attached. A shield is slidable on the body between retracted and extended positions for uncovering and covering the needle, respectively. Cooperating detents and detent pockets are molded on the shield and body for securing the shield in the extended position. A lever is molded on the shield that is pivotable for directing the detents radially outwardly to disengage the detents from the distal detent pockets and allow retraction of the shield from the extended position. A latch is molded on the shield for locking the lever and preventing subsequent retraction of the shield from the extended position.

Abstract: A cartridge and a method of venting prior during sealing the cartridge. The cartridge body has an external wall, a generally cylindrical internal chamber wall having an internal chamber wall diameter and enclosing a cartridge chamber, and at least one channel wall forming a channel (or groove) in the chamber wall. The piston has a generally cylindrical plug wall positioned adjacent to the generally cylindrical internal chamber wall. The cylindrical plug wall has a diameter substantially equal to the diameter of the cylindrical internal chamber wall. Dental material is conveyed into the cartridge chamber. The piston is pressed into the cartridge chamber while venting gas from the cartridge chamber through the channel prior to forming a hermetic seal around the dental material in the cartridge chamber.

Abstract: The invention relates to a syringe for delivering flowable and/or highly viscous materials with a syringe tube, which has an outlet nozzle, a material container, which is disposed therein, a handle, which is disposed at the end of the syringe tube opposite to the outlet nozzle, and a syringe piston, which can be moved through the handle into the syringe tube.

Abstract: The syringe system has a two separate pathways for delivering two materials for mixing. The syringe system has a plunger unit with two plungers that engage two barrels of a dual barrel cartridge to push the two materials into two separate lumens in a nipple on the dual barrel cartridge. The nipple has side portals for directing the materials away from each other as the materials are pushed out of the side portals. The nipple is inserted into a delivery chamber of a delivery tip that houses a static mixing element. The sidewalls of the delivery chamber mate with surfaces of the nipple such that the materials continue to have separate pathways after being pushed out of the side portals and reach the static mixing element.

Abstract: A dispenser for controllably heating a compule of dental material removably inserted in the dispenser and for extruding dental material from the compule. The dispenser includes an elongated tubular barrel having a substantially semi-cylindrical front end to accommodate the body of the compule, a cavity at the front end of the dispenser open to the atmosphere and a slot disposed transverse to the longitudinal axis of the for accommodating an end flange of the compule when the compule is inserted into the dispenser. The dispenser further includes a plunger reciprocally mounted in the tubular barrel in alignment with the longitudinal axis of the cavity for engaging the compule to express dental material from said compule by means of a motorized assembly or manual control under the control of the operator and a heating unit disposed in the cavity at the front end of the dispenser for heating the compule.

Abstract: A capsule contains dental restoration material for applying directly to a site to be restored. A capsule main body has a mixing compartment for a powder component and a first aperture forming portion to form an outlet hole. A liquid cup has a compartment for a liquid component and a second aperture forming portion to form an outlet hole for the liquid component. A stopper is provided on an external surface near a rear end portion for inhibiting sliding of the cup into the main body while the second aperture forming portion is being broken through, but not inhibiting the cup to slide into the main body when a large force is applied. A plunger has a projection for breaking through the second and first aperture forming portions. A nozzle has a rear end portion with a shape corresponding to the tip portion of the main body.

Abstract: A dental instrument is configured to be positioned adjacent the teeth and gums of a patient without injuring or causing pain to sensitive teeth or gums. The dental instrument includes: (i) a main body having a proximal end and a distal end, the main body being configured to be grasped by a practitioner; (ii) an elastomeric member coupled to the distal end of the main body such that abutment of the elastomeric member against the teeth or gums of a patient does not injure or cause pain to the teeth or gums; and (iii) a plurality of fibers disposed on the elastomeric member. The fibers can be used to remove air bubbles from impression material, or for a variety of other uses. The instrument may be in the form of an applicator or delivery tip, for example. The instrument can have a non-slip gripping surface.

Abstract: This disclosure is directed to a capsule construction for dispensing the entire volume of dental composite material contained therein, wherein the capsule includes a body portion defining a reservoir for containing a predetermined amount of dental material and having an opening at one end and a connected angularly disposed discharge nozzle with a passageway extending therethrough terminating at a discharge orifice at the other end of the body portion. A displaceable piston in the form of an elongated rod or cylinder seals the open end of the capsule body portion. The piston is formed of a flexible material which is sufficiently rigid to extrude the material within the reservoir when displaced, e.g. by a syringe device, yet sufficiently flexible to negotiate the angular turn at the nozzle end so as to extend through the passageway of the discharge nozzle to effect the extrusion of all of the material contained within the reservoir.

Abstract: A kneading device adapted for preparing calcium phosphate-based cement and for applying the cement directly to a required site which comprises a cylinder 1 which includes a hollow cylindrical body portion 11 and a nozzle 12 formed at the distal end of the cylindrical body portion; a plug 2 having an axial through-hole 21 slidably disposed within the proximal end of the cylindrical body portion; a piston assembly 3 which includes a shaft 31 extending through the through-hole 21 of the plug 2 for axial and rotatable movement, a kneading element 32 at the distal end of the shaft 31 within the cylindrical body portion, and a handle 34 formed at the proximal end of the shaft 31 external of the cylindrical body portion; a cover member 4 attached to and forming a closure for the nozzle 12; and a stop member 5 for locating the plug 2 in position at the proximal end of the cylindrical body portion.

Abstract: There is provided a capsule for dental restoration material, which can administer to a site to be restored of a patient with a mixture in a good state where air bubbles are not substantially contained, immediately after mixing. In the capsule for dental restoration material for directly administering to a restoration site of a tooth with the mixture prepared by subjecting a dental restoration material comprising two components of definite amounts of previously weighed powder component and liquid component accommodated in a cylindrical mixing compartment in an isolated state from each other to making the liquid component flow into the mixing compartment and mixing the both components, an air-permeable filter that does not pass the powder component therethrough but can ventilate air within the mixing compartment into the outside of the mixing compartment is placed in at least a part of a peripheral wall of the mixing compartment.

Abstract: A dental handpiece arranged to be coupled to a capsule containing a composite material and for delivering and/or retracting the composite material to and from the mouth of a patient. The handpiece includes an elongate tubular member having a hollow chamber for receiving a reversible electric motor, a battery for supplying electric power to the motor and a drive shaft coupled to the motor. The drive shaft is restrained from longitudinal movement but contains a threaded portion for engagement with a threaded bore of a longitudinally movable plunger. The plunger is arranged to force outward movement of the composite material from the reservoir of the capsule. A manually operated electric switch is preferably mounted in the wall of the handpiece with a portion extending internally and externally of the wall.

Abstract: A dispenser for controllably heating a compule of dental material removably inserted in the dispenser and for extruding dental material from the compule. The dispenser includes an elongated tubular barrel having a substantially semi-cylindrical front end to accommodate the body of the compule, a cavity at the front end of the dispenser open to the atmosphere and a slot disposed transverse to the longitudinal axis of the for accommodating an end flange of the compule when the compule is inserted into the dispenser. The dispenser further includes a housing having one end connected to the tubular barrel and an opposite end having an extended handle in the form of a pistol grip, a plunger reciprocally mounted in the tubular barrel having a piston extending in alignment with the longitudinal axis of the cavity and a manually movable lever arm coupled to the plunger by means of a rack and pinion mechanism to dispense dental material from from the dispenser.

Abstract: A syringe apparatus for mixing and delivering a two-part material has (i) a syringe barrel and a plunger. The apparatus also has a paddle slidably coupled to the plunger. A distal insertion end of the plunger has a slot therein. A proximal end of the paddle is slidably coupled within the slot. The paddle is movable between an extended position and a contracted position with respect to the plunger. Upon placing material into the barrel, such as through an opening in the wall of the barrel, the paddle can be employed to mix the material. After such mixing, the plunger is pressed further into the barrel without removing the paddle, thereby expressing the mixed material from the barrel and compressing the paddle into the slot of the plunger.

Abstract: A dispensing system for dispensing first and second materials to a desired location within the mouth of a patient, includes: (i) a two-part material delivery system; (ii) a delivery tip configured to deliver material to a specific location within a patient's mouth; and (iii) a flexible adaptor configured to flexible couple the delivery tip in fluid communication with the two-part material delivery system The flexible adaptor enables a practitioner to move the delivery tip to a specific location within the patient's mouth while the delivery system is remotely held.

Abstract: This disclosure is directed to a capsule construction for dispensing an ultra dense composite dental restorative material by a syringing technique wherein the capsules include a body portion defining a reservoir having an internal diameter (D) and a connected nozzle angularly disposed relative to the axis of the body portion and having a passageway terminating in a discharge orifice. The nozzle passageway and discharge orifice have an internal diameter (d) so that the ratio of diameters {fraction (d/D)} is equal to 1 or slightly less than 1. Bi-directional pistons are provided for extruding the ultra dense material from the capsule. Also, the internal surfaces of the capsules may be coated with lubricating liquid compatible to the ultra dense composite material to be dispensed thereby, and a removable sealing member for sealing the discharge orifice.

Abstract: A syringe assembly for applying a bonding agent to an inner surface of an orthodontic band includes a syringe and a hollow dispensing tip. The dispensing tip is detachably coupled to the syringe and is discarded after each patient, so that the risk of cross-contamination is substantially reduced. The dispensing tip provides a convenient extension of the syringe and facilitates application of the bonding agent in a continuous ribbon directly onto an inner surface of the orthodontic band without the use of an auxiliary hand instrument such as a spatula or the like.

Abstract: A dispensing system for dispensing first and second materials to a desired location within the mouth of a patient, includes: (i) a two-part material delivery system; (ii) a hollow delivery tip configured to deliver material to a specific location within a patient's mouth; and (iii) a hollow, flexible adaptor configured to flexible couple the delivery tip in fluid communication with the two-part material delivery system. The flexible adaptor enables the practitioner to move the delivery tip to a specific location within the patient's mouth without requiring that the delivery system be moved adjacent the mouth. Thus, the flexible adaptor enables a practitioner to deliver freshly mixed first and second materials to a specific desired location within the mouth of a patient.

Abstract: An nozzle for storage and application of liquid dental material, such as primer or adhesive, to a preparation site at a patient's teeth, gums or mouth. The nozzle includes a hollow nozzle for containing the liquid dental material. The hollow nozzle can include a flocked, open tip through which the liquid dental material is dispensed. The nozzle also includes a storage block having a plurality of cavities formed therein. A plurality of hollow nozzles can be inserted into the cavities to form substantially air-tight seals between the open tips of the hollow nozzles and the exterior of the cavities. An end of the hollow nozzles opposite from the open tip and exposed above the block includes a breakable seal. Accordingly, the hollow nozzles can be stored in the block for an extended period of time. To apply the liquid dental material to a preparation site, an applicator can be attached to the end of the hollow nozzle exposed above the block.

Abstract: A hand-operated disposable device for controllably dispensing medications having a paste-like or cream-like consistency includes a transparent plastic container member having a cylindrical medication-holding bore, and a plunger member which slidably engages the bore. The bore has a series of annular grooves corresponding to incremental volumes of the bore, and the plunger has a lip which interacts with the grooves.

Abstract: An improved amalgam or resin carrier, which has a plunger and lever mechanism similar to the well-known lever-actuated carrier and which has an easily replaceable sleeve or barrel for holding highly filled materials. The barrel may be easily removed for maintenance, cleaning, or replacement. In an alternate configuration, the barrel may be preloaded with a packable composite dental resin, thus allowing quick and easy clinical use. The preloaded barrel may be manufactured in the form of a disposable cartridge, and is especially suitable for use with light-activated materials.

Abstract: A dental cartridge or capsule for dispensing a dental material, such as an amalgam, cement, or glass ionomer. A body portion has a reduced diameter end. A frangible seal is placed adjacent or within the reduced diameter end. A delivery portion or cap has a metal cannula extending there through. The delivery portion or cap is snap fit onto the reduced diameter end. The metal cannula is positioned within the delivery portion or cap so as to rupture the frangible seal in the reduced diameter end of the body portion when the delivery portion or cap is snap fit onto the reduced diameter end. A material placed within the body portion of the dental cartridge is sealed within the body portion, and prevented from entering and thereby possibly clogging the delivery portion of the dental cartridge having a relatively small diameter bore or lumen prior to placement of the delivery portion or cap. In another embodiment the frangible seal is formed by a twist-off tab at the end of the reduced diameter portion.

Abstract: A manually operated ejector receiving a cartridge containing viscous material, the chamber of which is provided with a lock for holding the cartridge, said lock being disposed for displacement in its lengthwise direction independently of the piston of the ejector.

Abstract: A dropping container includes a cylindrical body, a dropping portion having a pressure valve for closing an opening in the dropping container body such that it can be opened by pressure and a thin tube which is open to the outside. The pressure valve includes a sealing plug portion formed of an elastic body or a rigid body and a pressing member, formed of an elastic body, for pressing the sealing plug portion against the opening to close the opening, a movable plug supplies the content of the cylindrical body to the dropping portion.

Abstract: A syringe for dental material has a cylinder with a dispensing socket and an open end opposite the dispensing socket. A plunger is inserted through the open end into the cylinder and is guided in the cylinder. The plunger is made of a porous, sintered material.

Abstract: A dental capsule or syringe and method for packaging, storing and/or dispensing a low viscosity or liquid-like dental material in which the liquid dental material is saturated in a sponge or cellular foam-like filler confined within the body portion or chamber of the dental capsule and sealed therein by a displaceable piston; and whereby the liquid dental material is dispensed therefrom by imparting a compressive force onto the sponge or foam filler, causing the liquid dental material to be squeezed and dispensed therefrom in a controlled manner by the displacement of the piston sealing the open end of the capsule. The discharge orifice may be sealed either by a suitable detachable sealing cap or by an integrally molded seal which must be severed prior to use.

Abstract: A dispensing cartridge for use with a hand-held applicator has a chamber with a first section and a second section. The second section has a smaller cross-sectional area than the first section such that the chamber has a stepped configuration. A piston is slidably received in the chamber and has a head portion that is received in the second section and a tail portion that is received in the first section. As a force is applied to the tail portion, the head portion advances to expel material through an outlet opening. The cartridge is especially useful for dispensing compositions having a relatively high viscosity such as dental pastes and the like.

Abstract: A dispensing cartridge especially suitable for use with a hand-held applicator for dispensing liquids having a relatively low viscosity has a chamber and at least one compressible, porous material received in the chamber. Each of the porous materials receives a quantity of a liquid composition. As a piston is advanced in the chamber, each porous material is compressed to cause the composition or compositions to be discharged through an outlet opening.

Abstract: Bone tissue fragments are collected from liquid fluid being evacuated by suction from a surgical operation in bone tissue. Liquid is allowed to pass into a cylindrical sieve through one open end thereof and through the sieve wall from the inside to the outside thereof. Bone tissue fragments are collected on the inside surface of the sieve and are scrapped off and deposited outside the sieve.

Abstract: A manually operated ejector device for containing a cartridge loaded with viscous material, having a chamber with a front end adapted to contain the cartridge and a back end, a piston disposed in the chamber for engagement in the cartridge, a handle arranged at the back end of the chamber, and a lever displaceable relative to the chamber and the handle for driving the piston in order to drive the latter in its longitudinal direction toward the front end of the chamber. To improve the safety of the handling of the ejector device, the piston has a spring case and a plunger, the spring case having a chamber whose one end is closed and whose other, front end has an opening, the transition between the chamber and the opening being limited by an abutment surface facing the chamber.

Abstract: A dental container type applicator in the form of a capsule, dental tip or squeeze bottle having a body portion terminating in a discharge nozzle having a discharge orifice upon which minute fibers or flocking is adhered about the external surface of the discharge nozzle in the vicinity of the discharge orifice to permit the user to spread, burnish or distribute the dental material onto a tooth as it is being expressed from the dental capsule, tip or squeeze bottle without obstructing the flow of dental material therefrom as the dental material is being expressed.

Abstract: The invention pertains to a device (10) for mixing and delivering a multicomponent molding compound. The device has a receptacle (16) having pistons (58,60) that can be operated by means of a drive unit for emptying at least two film bags (22,24) filled with individual components of the multicomponent molding compound, a static mixer (30) and a headpiece (28), connected to the film bags (22,24). The headpiece has separated flow channels (52) open towards the film bags (22,24) and leading into the static mixer (30). The static mixer (30), the headpiece (28) and the film bags (22, 24) form an integral unit (32) which is disposable, the unit inserted into and removed from the receptacle (16) after its use.

Abstract: An actuating device for dispensing of a paste-like material, especially in the dental field, from a capsule or cartridge has an abutment for the support of the capsule or cartridge at the actuating device in the direction of dispensing. The abutment is provided at a collar-shaped projection and is a part of at least one securing tongue. The securing tongues are provided at the housing of the actuating device and can be released for releasing the capsule or cartridge.

Abstract: A medicine dispenser adapted to administer liquid medicine via a retromolar pad area including a liquid collecting cylinder body and a soft plastic protective cover. The liquid collecting cylinder body includes a liquid discharge tube extending centrally from a top face thereof. The cylinder body is integrally formed with the liquid discharge tube, the latter having an open end at a top end. The protective tube has an internal hole matching the shape of the liquid discharge tube so that the latter can be fitted entirely into the internal hole of the protective tube. The deepest part of the internal hole of the protective tube is formed with a liquid discharge hole that is substantially at a right angle to the protective tube body so that liquid medicine flowing from the liquid discharge tube can bend at the rear section of the internal hole of the protective tube and out laterally from the liquid discharge hole.

Abstract: A dental applicator for applying amalgam or other filling material to a tooth is provided, in which a plunger is arranged to reciprocate into and out of a barrel to thereby eject and administer the amalgam or filling material. The barrel and/or plunger are fabricated from plastic and/or metal or metallic material provided with a coating, to inhibit or totally prevent amalgam residue from solidifying and adhering to the barrel or plunger.

Abstract: A syringe for dispensing a viscous material has a cylindrical housing with a first and a second end. An outlet member is connected to the first end of the cylindrical housing. A deformable dispensing body is slidable in the cylindrical housing from the second end to the first end for dispensing the viscous material in a dispensing direction of the syringe. The deformable dispensing body is insertable into the outlet member and deformable to the shape of the outlet member, but has a dimensionally stable trailing end.