Abstract: A dental scaler comprises an elongated housing having a forward end at which a dental scaling tool is removably connectable, and a rearward end for connection to a source of pressure working fluid. A substantially rigid elongated tubular member is resiliently supported in the housing. A vibration imparting device is coupled to an intermediate portion of the elongated tubular member, and is driven by the pressure working fluid to vibrate the elongated tubular member. A dental scaling tool is connected at the forward end portion of the elongated tubular member, and is vibrated by the vibrations produced by the vibration device.