A dental tool for use with an ultrasonic transducer, the tool comprises a substantially elongate tool defined by a shaft having a proximal end with a coupling attachment at the proximal end for attachment to an ultrasonic transducer, and a distal end having a tip configured for performing a dental procedure,...http://www.google.es/patents/US7140878?utm_source=gb-gplus-sharePatente US7140878 - Microendodontics ultrasonic surgical dental tool having water port and method of making same
Microendodontics ultrasonic surgical dental tool having water port and ...