Transducer-actuated subgingival for tool-chip

摘要

(57) provides a transducer actuated subgingival tool for conducting fluid near the surface of the tooth and contacts with the surface of the tooth gingival under the tool, [Abstract] The present invention, the working tip has. A step portion provided on the surface of the outer wall of the chip between the fluid inlet end, an outlet end of the subgingival, and the outlet end of the subgingival and the inlet end, the working tip, the fluid inside the chip I and a passage wall. The passage wall portion is formed in the inlet end generally along the central axis in the longitudinal direction of the inlet end of the chip.