Dental tooth cleaning instrument with a mechanically driven tooth cleaning tool

Claim 1

Dental tooth cleaning instrument including an elongate handpiece comprising a gripping sleeve; a tooth cleaning tool having a cleaning head on a shaft mounting said tool; a motor-driven vibration generator being arranged in the gripping sleeve, said generator comprising a base part vibratably mounted in a forward end portion of the gripping sleeve, a rear end of the gripping sleeve being detachably connectable with a connecting piece by a rotatable plug-in coupling formed with a coupling pin and a coupling recess for receiving said pin; a rear end of the shaft being detachably connected with the base part; an element arranged at the forward end portion of the shaft through which rotation is effected for alternatively tightening and releasing a screw connection; the cleaning head being detachably connected to the forward end of the shaft by said screw connection; the cleaning head having a plurality of wires at a forward end thereof, said wires lying laterally side by side and ending in a common working surface and being attached in a pot-shaped sleeve of the cleaning head, said sleeve receiving and enclosing the wires; a selective rinsing and cooling device which includes a medium channel extending longitudinally from the coupling piece through the gripping sleeve, the base part, the shaft, the wire packet and ends at the working surface thereof, the shaft being angled within a range of about 20° to 50° relative to the cleaning head; an illumination device in the gripping sleeve, said illumination device having a light-exiting opening at the forward end of the gripping sleeve on the side towards which the shaft is angled; and including a plurality of different and selectively interchangeable cleaning heads.