A powder delivery nozzle (12) for a personal care appliance (10) comprises a body (28), guidance tip (38), powder chamber (50), and flexible membrane (56). The body (28) includes an air-liquid channel (30) for delivery of air and/or liquid from a proximal end to a distal end thereof. The guidance tip (38), located at the distal end of the body (28), includes an orifice (40) coupled to the air-liquid channel (30) and is configured to expel a pulse of air and/or liquid. The powder chamber (50) is configured for storing a powder (52) and having an air intake port (42) and a powder outlet port (44). The flexible membrane (56) is disposed between the powder chamber (50) and the air-liquid channel (30). Responsive to delivery of a pulse of air and/or liquid via the air-liquid channel (30), a pulse of pressure is applied to the flexible membrane (56) for actuating a release of powder expelled from the powder chamber (50) via the powder outlet port (44). A method and personal care appliance are also disclosed.

A powder delivery nozzle (12) for a personal care appliance (10) comprises a body (28), guidance tip (38), powder chamber (50), and flexible membrane (56). The body (28) includes an air-liquid channel (30) for delivery of air and/or liquid from a proximal end to a distal end thereof. The guidance tip (38), located at the distal end of the body (28), includes an orifice (40) coupled to the air-liquid channel (30) and is configured to expel a pulse of air and/or liquid. The powder chamber (50) is configured for storing a powder (52) and having an air intake port (42) and a powder outlet port (44). The flexible membrane (56) is disposed between the powder chamber (50) and the air-liquid channel (30). Responsive to delivery of a pulse of air and/or liquid via the air-liquid channel (30), a pulse of pressure is applied to the flexible membrane (56) for actuating a release of powder expelled from the powder chamber (50) via the powder outlet port (44). A method and personal care appliance are also disclosed.

A dental burr for preparing tooth for fabrication may include a shank designed to engage with a dental handpiece; and a burr body extending from the shank. The burr body may have a lip distal from the shank, the lip defining an opening into a cavity within the burr body, the cavity being sized to accommodate a tooth; and an indented edge extending from an area of the burr body proximate to the lip to the lip, wherein an exterior surface of the indented edge, the lip, and an inner surface of the cavity be an abrasive surface. The burr body may also have at least one debris vent extending therethrough.

A dental burr for preparing tooth for fabrication may include a shank designed to engage with a dental handpiece; and a burr body extending from the shank. The burr body may have a lip distal from the shank, the lip defining an opening into a cavity within the burr body, the cavity being sized to accommodate a tooth; and an indented edge extending from an area of the burr body proximate to the lip to the lip, wherein an exterior surface of the indented edge, the lip, and an inner surface of the cavity be an abrasive surface. The burr body may also have at least one debris vent extending therethrough.

An oral care appliance in which a cleaning agent is injected from a supply tank and a method for use of such an appliance in oral care for the teeth of one or two arches using a mouthpiece is disclosed herein.

An oral care appliance in which a cleaning agent is injected from a supply tank and a method for use of such an appliance in oral care for the teeth of one or two arches using a mouthpiece is disclosed herein.

The present invention relates to a powder mixture, in particular for the remineralization of teeth, a powder jet device, in particular for application in the field of dentistry, a use of the powder mixture for producing a means for the remineralization of teeth 5 and to a method for the remineralization of teeth, and a use of a powder mixture in a dental apparatus. The powder mixture comprises a deposition powder which is designed to adhere to tooth surfaces.

A medical or dental system with at least one first transmitting and/or receiving unit and at least one second transmitting and/or receiving unit, wherein the at least two transmitting and/or receiving units are designed for the capacitive coupling of electric signals into and/or out of a human body, so that an electric path which extends through the human body of the user and/or of the person to be treated can be established for the transmission of electric signals between the at least one first transmitting and/or receiving unit and the at least one second transmitting and/or receiving unit, in order to transmit data between the at least two transmitting and/or receiving units.

A medical or dental system with at least one first transmitting and/or receiving unit and at least one second transmitting and/or receiving unit, wherein the at least two transmitting and/or receiving units are designed for the capacitive coupling of electric signals into and/or out of a human body, so that an electric path which extends through the human body of the user and/or of the person to be treated can be established for the transmission of electric signals between the at least one first transmitting and/or receiving unit and the at least one second transmitting and/or receiving unit, in order to transmit data between the at least two transmitting and/or receiving units.

The present invention relates to a powder mixture, in particular for the remineralization of teeth, a powder jet device, in particular for application in the field of dentistry, a use of the powder mixture for producing a means for the remineralization of teeth and to a method for the remineralization of teeth, and a use of a powder mixture in a dental apparatus. The powder mixture comprises a deposition powder which is designed to adhere to tooth surfaces.