Abstract: A device for dispensing a material has a container for holding the material, a piston movably arranged within the container and a spindle in cooperation with the piston. The device is configured such that the spindle and the container are rotatable relative to each other to move the piston for dispensing the material. The piston and the spindle are adapted to anti-twist lock against each other in a first axial position of the piston relative to spindle. And in a second axial position of the piston relative to spindle the anti-twist lock between the piston and the spindle is suspended. The device helps minimizing any residual dental material upon attempting to empty the device.

Abstract: A method of processing a dental package (1) which hasthe steps of providing a dental material, providing a cartridge (10) for storing the dental material, providing a first label (20), providing material specific information that is associated with the dental material, providing a second label (30), the second label being circumferentially smaller than the first label, marking at least one of the first and second label with the material specific information; and attaching the second label onto the first label such that the material specific information is enclosed between the first and second label, and such that the second label does nowhere project over the first label.

Abstract: A syringe (1) for dispensing a dental substance. The syringe has a container (11) that forms at least a first and a second component chamber (111, 112) and a plunger (12) having a first and a second plunger rod (121, 122). The first and second plunger rod (121, 122) are at least partially arranged in the first and second chambers, respectively, for a movement from a full position to an empty position over a displacement length. The syringe (1) further has an actuator (13) that is guided for a movement relative to the container (11). The movement of the actuator (13) is restricted for a predetermined actuation stroke being defined by a length between a rear position and a front position of the actuator (13). The plunger has a toothing and the teeth of the toothing are spaced at a pitch P. The actuator has at least a first pawl (139a) that meshes into the toothing of the plunger (12).

Abstract: The present invention is directed to a plunger, a plunger assembly, and a system for storing a substance or substances, preferably flowable substances, and a method of filling and sealing a substance in a storing system. In particular, the present invention provides for substantially air-free filling and storing of substances in a delivery system.

Abstract: A container for storing and dispensing a liquid has a generally cup-shaped receptacle formed by a circumferential side wall and a front wall. A piston is slidably accommodated within the receptacle. The receptacle and the piston in combination form a chamber in which the liquid is received. The piston forms a sealing structure bearing on an inner surface of the side wall. The inner surface of the side wall has an arithmetic average surface roughness of between 0.05 ?m and 4.5 ?m R?a.#191 The container allows for air to penetrate in the chamber while it provides for the liquid to be captured therein.

Abstract: A dispenser for a pasty material has a container, a cover and a handle. The dispenser is operable by twisting the cover and the handle relative to each other in a dispensing direction for dispensing material and, alternatively, in an opposite closing direction. The container having an outlet for the material and the cover having a dispensing opening. The container and the cover are arranged relative to each other for a rotation between a closed position, in which the cover closes the outlet, and an open position, in which the dispensing opening opens the outlet. A first engagement mechanism is provided for enabling the container and the handle to engage with each other in at least one angular position during twisting in the closing direction. The first engagement mechanism further forming a freewheel mechanism with respect to a rotation in the dispensing direction.

Abstract: A plunger assembly for a cartridge for dispensing dental material. The plunger assembly has a receptacle, an activator, and a passageway extending through the receptacle along a longitudinal axis. The passageway forms a chamber for storing at least a component of the dental material and has an outlet for the chamber. The activator has a piston for extruding the component from the chamber and a plug for the outlet. The activator is movable to unplug the outlet and to subsequently extrude the component in a single stroke. The plunger assembly helps for reliably emptying the chamber and helps facilitating dispensation of dental materials.

Abstract: A device for dispensing a material, being provided with a plunger assembly which has a screw with a first thread portion and a second thread portion. The first and second thread portion differ in shape and, in combination, form one continuous screw thread. The plunger assembly further has a nut which engages the screw thread by a nut thread. The nut thread corresponds in shape to a negative shape of the first thread portion. The invention help minimizing efforts in the assembly of a device using the plunger assembly.

Abstract: The invention is directed to a process for taking a dental impression and/or conducting a dental retraction, the process comprising the steps of (a) providing a composition (A) having the consistency (a1), composition (A) comprising curable components, and a catalyst suitable to initiate or catalyze the curing of the curable components, composition (A) being contained in a device, (b) applying a portion (I) of composition (A) with a consistency (a2) into the sulcus of a tooth, (c) applying a portion (II) of composition (A) with a consistency (a1) in contact with composition (A) applied in step (b), (d) removing portion (I) together with portion (II) of composition (A) from the surface of the tooth, consistency (a2) being higher than consistency (a1).

Abstract: A pen-like dispenser for dispensing a dental material has a handle and a cover which are attached for rotation relative to each other about a longitudinal axis of the dispenser, and a cartridge for holding the dental material and a screw plunger for extruding the dental material from the cartridge by screwing action. The cartridge and the cover in combination form a rotary slide valve which is operable by rotation about the longitudinal axis between a storage position, in which the cover closes a dispensing outlet of the cartridge, and a dispensing position, in which an opening in the cover opens the dispensing outlet of the cartridge. A relative rotation between the screw plunger and the handle about the longitudinal axis is restricted, and a relative rotation between the cartridge and the cover about the longitudinal axis is enabled within a predetermined rotation angle and restricted otherwise.

Abstract: A device for dispensing a dental material comprises a container for containing the material and an outlet which is closed by a closure. A breakable seal is arranged between the closure and the container. The device further is operable between a storage position in which the outlet is closed and an operational position in which the outlet is open. An initial operation toward the operational position causes the seal to break, whereby the closure is captured in the device. The device may provide a relatively long shelf life for the material, and may facilitate preparation of the material for use.

Abstract: The present invention is directed to a plunger, a plunger assembly, and a system for storing a substance or substances, preferably flowable substances, and a method of filling and sealing a substance in a storing system. In particular, the present invention provides for substantially air-free filling and storing of substances in a delivery system.

Abstract: An application tip for dispensing a dental material has a tubular dispensing end made of a plastic material. The dispensing end being formed of a circumferential wall having a thickness T1 and which forms a dispensing opening of a diameter Di1 and having a diameter-to-thickness-ratio Di1:T1 at the opening which is 13 or greater. The wall thickness increases in a direction away from the opening. The application tip preferably facilitates appropriately depositing the dental material.

Abstract: A dispensing device for a dental material, comprises a container that has a passageway with a front opening for releasing the dental material, and a rear opening. The device has a first fill opening in the passageway arranged between the rear opening and the front opening. The device further has a second fill opening. The device is adapted to receive a piston in the passageway which is movable between the rear opening and the front opening.

Abstract: A device for dispensing a dental material has a cartridge with a dispensing end. The dispensing end has a dispensing opening for the dental material. The dispensing end further has in essence an axially symmetric shape with a truncation. The truncation provides the dispensing end with a generally flat dispensing surface through which the dispensing opening extends. The device has further a cap received on the dispensing end. The cap and the dispensing end are rotatable relative to each other between an open position, in which an orifice in the cap uncovers the dispensing surface, and a closed position, in which a closed space is formed between the cap and the dispensing surface. The device allows for a relatively convenient dispensation of dental material, in particular for a dispensation of a dental composite filling material.

Abstract: A container for storing and dispensing a liquid has a generally cup-shaped receptacle formed by a circumferential side wall and a front wall. A piston is slidably accommodated within the receptacle. The receptacle and the piston in combination form a chamber in which the liquid is received. The piston forms a sealing structure bearing on an inner surface of the side wall. The inner surface of the side wall has an arithmetic average surface roughness of between 0.05 ?m and 4.5 ?m R?a.#191 The container allows for air to penetrate in the chamber while it provides for the liquid to be captured therein.

Abstract: The present invention is directed to a plunger, a plunger assembly, and a system for storing a substance or substances, preferably flowable substances, and a method of filling and sealing a substance in a storing system. In particular, the present invention provides for substantially air-free filling and storing of substances in a delivery system.

Abstract: The present disclosure provides for a micro-needle device (100, 200, 300, 400) that includes a micro-needle array (102, 202, 302, 402) and a liquid connection port (104, 204, 304, 404). The micro-needle array includes a base (106, 206, 306, 406), a sidewall (108, 208, 308, 408) and a top (110, 210, 310, 410), where the base includes two or more of an elongate micro-needle (112, 212, 312, 412) having an interior surface (114, 214, 314, 414) defining an opening 8116, 216, 316, 416) through the elongate micro-needle. The base has a first major surface (118, 218, 318, 418) and a second major surface (120, 220, 320, 420) through which the opening of the elongate micro-needle passes to provide a passage across the base. The top has an interior surface (122, 222, 322, 422) and the sidewall has an interior surface (126, 226, 326, 426), where the interior surface of the side wall, the interior surface of the top and the first major surface of the base define a volume (130, 230, 330, 430).

Abstract: A micro-needle device (100, 200, 300) for delivering a dental local anesthetic that includes a micro-needle array (102, 202, 302) and a hollow spheroid shaped container (108, 208, 308). The micro-needle array has a base (104, 204, 304)and two or more of an elongate micro-needle (106, 206, 306). The elongate micro-needle has an interior surface (110, 210, 310) defining an opening (112, 212, 312) through the elongate micro-needle and the base has a first major surface (114, 214, 314) and a second major surface (116, 216, 316) through which the opening of the elongate micro-needle passes to provide a passage across the base. The hollow spheroid shaped container includes an inside surface (120, 220, 320), where the first major surface of the base and the inside surface of the hollow spheroid shaped container define a volume that is in fluid connection with each opening of the two or more of the elongate micro-needle.