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US 6,976,844 B2Granted
Ultrasonic microtube dental instruments and methods of using same
AssigneeSan Diego Swiss Machining, Inc.
InventorsTeresa Hickok, Clifford Ruddle
Life of this patent
Estimating the term…
Abstract
Systems and methods related to ultrasonic microtube dental instruments designed to cut around a broken instrument by allowing the broken instrument to be placed within a lumen of the microtube instrument while simultaneously boring with the broken instrument and being guided by the broken instrument.
Claims10
A method of removing a broken instrument from a root canal of a tooth, the method comprising:
- getting an instrument, the instrument having a distal end including a cutting surface and a lumen extending from said cutting surface;
- placing said lumen over a proximal end of said broken instrument so as to place said cutting surface in contact with said tooth;
- ultrasonically driving said instrument to cut into said tooth with said cutting surface so as to loosen said broken instrument relative to said tooth;
- and
- removing said broken instrument.
2 more elements
Dependencies are inferred from the claim text.