Abstract: A device (1) to allow a cleaning of a nozzle element (10) of a dental tool, wherein the nozzle element (10) ejects a powder-gas-mixture, being transported by a first channel (11) of the nozzle element (10), and a fluid, being transported by a second channel (12) of the nozzle element (10), wherein the nozzle element (10) is configured to eject the powder-gas-mixture and the fluid such that the ejected fluid surrounds the ejected powder-gas-mixture, the device (1) comprising:-an interface section (22) configured to connect the device (1) to the nozzle element (10) of the dental tool and-an entrance section (21) configured to introduce a cleaning medium into the device (1), wherein the device (1) is configured to guide the cleaning medium into the first channel (11) and the second channel (12) of the nozzle element (10) to clean the first channel (11) and the second channel (12).

Abstract: A dispensing device for dispensing a powder preferably from a closed container, the device including a first side, a second side, a powder passage extending through the device and being configured to transfer powder from the first side to the second side, and a ventilation passage extending through the device and being configured to transfer ambient air from the second side to the first side, where the ventilation passage has a first passage length from the surface of the second side up to its ventilation opening and, the powder passage has a second passage length from the surface of the second side up to its powder opening, where the first passage length is larger than the second passage length.

Abstract: The invention relates to the use of a powder in a powder jet device for cleaning tooth surfaces by powder spraying, wherein the powder comprises cyclodextrin. The invention also relates to a process for cleaning tooth surfaces with a powder jet device, wherein the powder comprises cyclodextrin and the invention relates to a powder or powder mixture for use in a powder jet device, wherein the powder or powder mixture comprises cyclodextrin.

Abstract: Powder chamber for an air polishing device, extending from a top end to a bottom end along an axis, said powder chamber including at least two wall sections, where a first wall section forms a first angle with respect to the axis, and where a second wall section forms a second angle with respect to the axis, where the angles are measured in a measuring direction from the axis to the appropriate wall section in such a manner so that the acute angles are obtained, where the measuring direction from the top end to the bottom end is counted positive, and where the measuring direction from the bottom end to the top end is counted negative, where the second wall section is arranged below the first wall section, and where the second angle is smaller than the first angle.

Abstract: The invention relates to a powder for use in treating tooth surfaces with a powder jet device, wherein the powder comprises at least one organic compound, wherein the at least one organic compound has a melting point <165° C. and a solubility in water at 25° C. of <10 g/l.

Abstract: Nozzle system for a powder blasting device including a first nozzle element for transporting a powder-gas mixture stream along a transporting direction and a second nozzle element, where the second nozzle element surrounds the first nozzle element such that at least one channel is formed between the first nozzle element and the second nozzle element, where the channel is provided for transporting a liquid stream, where the first nozzle element and the second nozzle element are arranged such that in operation the powder-gas-mixture stream ejected by the first nozzle element is encased by the liquid stream ejected by the channel for forming an output stream of the nozzle system, where the first nozzle element has an acceleration part having a first cross section and a spreading part having a second cross section, where the spreading part is arranged downstream of the acceleration part.

Abstract: A tube section for a pinch valve, includes an inner tube element for transporting a medium, the inner tube being transferrable between an open state, in which the medium can flow through the inner tube element, and a closed state, in which the medium is hindered to flow through the inner tube element, and an outer tube element, surrounding the inner tube element, for creating a collecting region between the inner tube and the outer tube to collect the medium in case of a leakage of the inner tube, wherein the inner tube element and the outer tube element are configured for transferring the inner tube element between an open state and a closed state, in particular in dependency of a force acting on the outer tube element.

Abstract: A suction device for suctioning material during a dental treatment, the suction device including a handpiece having a suction aperture to allow passage of suctioned material, an attachment for splatter protection designed for being mounted on the handpiece, the attachment including a mounting section for an exchangeable or a permanent mounting of the attachment to the handpiece, a suction opening for the passage of suctioned material through the suction opening and the suction aperture when the attachment is mounted on the handpiece, and at least a side wall extending from the suction opening and forming a working channel designed to surround a molar, partially or at least two sides of the molar and, in particular, simultaneously to host a dental tool, the channel having at least one introduction section for introduction of a dental tool into the working channel.

Abstract: A storage device for powder used for treatment of a tooth, including a housing surrounding a storage volume, and a closable opening through which the storage volume is accessible, where the storage device has a tapered shape towards the opening, where within the storage volume a powder is accommodated, and the housing is made of a rigid material.

Abstract: A dispensing device for dispensing a powder preferably from a closed container, the device including a first side, a second side, a powder passage extending through the device and being configured to transfer powder from the first side to the second side, and a ventilation passage extending through the device and being configured to transfer ambient air from the second side to the first side, where the ventilation passage has a first passage length from the surface of the second side up to its ventilation opening and, the powder passage has a second passage length from the surface of the second side up to its powder opening, where the first passage length is larger than the second passage length.

Abstract: A powder for use in a powder jet device for cleaning tooth surfaces by powder spraying, where the powder comprises at least 90 wt.-% of particles of a first material and 0.1-10 wt.-% of a second material, where the second material is coated on a surface of the particles of the first material and a solubility of the first material in water is ?1 g/L.

Abstract: The invention relates to the use of a powder in a powder jet device for cleaning tooth surfaces by powder spraying, wherein the powder comprises cyclodextrin. The invention also relates to a process for cleaning tooth surfaces with a powder jet device, wherein the powder comprises cyclodextrin and the invention relates to a powder or powder mixture for use in a powder jet device, wherein the powder or powder mixture comprises cyclodextrin.

Abstract: A powder chamber, in particular for powder polishing devices, including a casing and two functional sectors, whereby the two functional sectors are arranged to be opposite to each other, and whereby at least one functional sector is designed to provide an opening for a working medium such as air or a mixture of powder and air, and whereby the two functional sectors are designed to allow the powder chamber to be locked. The two functional sectors are preferably arranged along an axis and are rotationally symmetric.

Abstract: The invention relates to the use of a powder in a powder jet device for cleaning tooth surfaces by powder spraying, wherein the powder comprises rhamnose and/or arabinose. The invention also relates to a process for cleaning tooth surfaces with a powder jet device, wherein a powder comprising rhamnose and/or arabinose is used.

Abstract: The invention relates to a powder for use in a powder jet device for cleaning teeth, wherein the powder comprises granules having an average particle size of 20 ?m to 220 ?m and the granules comprise primary particles and a binder, wherein the primary particles have an average particle size smaller than the average particle size of the granules. The invention also relates to a process for preparing the powder and the use of the powder for cleaning teeth.

Abstract: Teeth cleaning system, in particular dental powder jet cleaning system, including a powder container having an inlet for compressed air, and where the powder container has an outlet for a powder/air mixture, and where the outlet communicates with a pipe system via which a fluid is passed, in particular a powder/air mixture which is formed in the powder container and from which powder container can be led, where a flow resistance of the inlet is configured relative to a flow resistance of the outlet and/or of the pipepipe system in such a way that a predetermined pressure loss is set across the inlet.

Abstract: A powder chamber, especially for or of a dental powder jet apparatus, including at least one conductive region, which is electrically conductive, where the at least one conductive region includes a contact surface, which is formed within the powder chamber.

Abstract: A mixing chamber for a handpiece of a medical device, in particular a dental abrasive jet device, having a first supply line for a first fluid stream, in particular a liquid fluid flow, and a second supply line for a second fluid flow, in particular a powder/air mixture, where the two supply lines extend along a central axis and the second supply line-ends within the mixing chamber in an outlet the mixing chamber having a mixing region, in which the first fluid flow is deflected towards the second fluid flow, downstream of the outlet, and an accelerating region in which the first supply line extends parallel to the second supply line over the length of at least 3 mm.

Abstract: A nozzle element (1) for a dental treatment device, in particular for a dental treatment device intended for a subgingival cleaning of at least a part of a surface of a root of a tooth (3), comprising: a basic body (2) being elongated in a longitudinal direction (L) and configured to be introduced at least partially into a periodontal pocket (7) a first feed channel (10) for transporting a powder-gas-mixture (12), wherein said first feed channel (10) is incorporated inside the basic body (2), a first outlet opening (11) of said first feed channel (10) in an end region (E) of the elongated basic body (2) for ejecting the powder-gas-mixture (12), wherein said first outlet opening (11) is preferably configured for a lateral ejection of the powder-gas-mixture (12) in a first ejection (E1) direction being slanted relative to the longitudinal direction (L), wherein the nozzle element (1) is configured for providing at least a part of at least one pressure relief channel at the end region (E) of the basic body (2).