A dental scaler for use in cleaning dental implants. The scaler includes a handle having a generally central axis extending along the length thereof, a handle tip end affixed to the handle, and a rod affixed to the handle tip end, wherein the rod comprises at least six sections, one angle, and a curved tip.

An artificial tooth 30 to be polished is fixed at a tooth neck 32 side and rotated about a tooth axis 33. Abrasives, preferably elastic abrasives formed by kneading abrasive grains into or supporting abrasive grains on an elastic material, are ejected together with a compressed gas at an ejection pressure of from 0.1 MPa to 0.5 MPa onto an occlusal portion 31 side of the artificial tooth 30 while the artificial tooth 30 is being rotated. The abrasives are ejected at an inclination angle with respect to the tooth axis 33 of the artificial tooth 30 of from 0 to 90, and preferably from 15 to 75. Portions on the occlusal portion 31 and side surfaces 38 of the artificial tooth 30 are thereby polished at the same time by the abrasive sliding over these portions.

An artificial tooth 30 to be polished is fixed at a tooth neck 32 side and rotated about a tooth axis 33. Abrasives, preferably elastic abrasives formed by kneading abrasive grains into or supporting abrasive grains on an elastic material, are ejected together with a compressed gas at an ejection pressure of from 0.1 MPa to 0.5 MPa onto an occlusal portion 31 side of the artificial tooth 30 while the artificial tooth 30 is being rotated. The abrasives are ejected at an inclination angle with respect to the tooth axis 33 of the artificial tooth 30 of from 0 to 90, and preferably from 15 to 75. Portions on the occlusal portion 31 and side surfaces 38 of the artificial tooth 30 are thereby polished at the same time by the abrasive sliding over these portions.

The mixing device for mixing a powder with a pressurized gas, comprising a mixing chamber (20) with an inlet area (22), which has at least one inlet opening (24), by way of which powder and/or pressurized gas and/or a mixture thereof may be introduced into the mixing chamber (20), and at least one outlet area (26), which is designed for withdrawing from the mixing chamber (20) a main flow (HR) of a gas or powder or a powder and gas mixture directed along the mixing chamber (20) which essentially extends from the inlet area (22) to the outlet area (26), characterized in that a regulating device (10) is arranged along and/or in continuation of the main flow (HR), regulating the main flow (HR) of the gas or powder or powder and gas mixture.

The mixing device for mixing a powder with a pressurized gas, comprising a mixing chamber (20) with an inlet area (22), which has at least one inlet opening (24), by way of which powder and/or pressurized gas and/or a mixture thereof may be introduced into the mixing chamber (20), and at least one outlet area (26), which is designed for withdrawing from the mixing chamber (20) a main flow (HR) of a gas or powder or a powder and gas mixture directed along the mixing chamber (20) which essentially extends from the inlet area (22) to the outlet area (26), characterized in that a regulating device (10) is arranged along and/or in continuation of the main flow (HR), regulating the main flow (HR) of the gas or powder or powder and gas mixture.

A 3-dimentional strip for stripping a tooth is provided. Some or whole of at least one side of both sides includes a abrasive face to abrade an interdental area, an upper portion includes a predetermined thickness along a longitudinal direction, and a lower portion includes a thickness decreased toward an end of the longitudinal direction and increased toward the other end of the longitudinal direction. The thickness on the other end is greater than the thickness of the upper portion.

A 3-dimentional strip for stripping a tooth is provided. Some or whole of at least one side of both sides includes a abrasive face to abrade an interdental area, an upper portion includes a predetermined thickness along a longitudinal direction, and a lower portion includes a thickness decreased toward an end of the longitudinal direction and increased toward the other end of the longitudinal direction. The thickness on the other end is greater than the thickness of the upper portion.

Handheld dust collector (or disposable dust cabinet) for sandblasting small objects, such as extraoral sandblasting of dental devices. The apparatus may comprise a bag with an open, resealable end. An access panel on the bag allows a user to insert their fingers into the bag, such as with integrated finger cots. A filter may be provided to allow air to escape from the bag. Methods of treatment are disclosed.

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.