Definition : Small instruments designed to be held and rotated by a device (e.g., handpiece, drilling machine) to excavate, perforate, reshape, and/or excise objects, tissue, or other anatomic parts. These instruments typically consist of a shank of steel or other hard metal with a well-differentiated working head of various shapes (e.g., cone, cylinder, inverted cone, pear) on the distal end; a tapered, notched, or elongated proximal end to fit into the rotary device; and a neck that connects the shank to the working part. Dedicated burs are used in a variety of dental and surgical (e.g., orthopedic, ophthalmic, endaural) procedures.
Entry Terms : "Cutting Burs" , "Burrs"
UMDC code : 10519