A dentistry hand piece is provided wherein a rotation of a drive motor is converted into an oscillation of a receiving part for a dentistry tool. The conversion of the rotation into the oscillation takes place in an attachment head (3) of the hand piece. The longitudinal axis (51) of the receiving part...http://www.google.se/patents/US6030216?utm_source=gb-gplus-sharePatent US6030216 - Dentistry hand piece
