An adaptor for coupling a dental irrigation tip to an ultrasonic dental handpiece is disclosed. The dental handpiece is connected to a fluid source. The adaptor comprises an elongated body having a distal end for connection to the irrigation tip and a proximal end for connection to the dental handpiece. The elongated body has a through bore in fluid communication with the dental handpiece and the irrigation tip. In an alternate embodiment, the adaptor may replace the ultrascaling dental handpiece.
