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Burs designed to be held and spun by a rotary device (e.g., handpiece, drilling machine) to perform therapeutic or cosmetic procedures on or around the finger nails. These devices 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) and materials (e.g., diamond, metal carbide) on the distal end; a tapered, notched, or elongated proximal end to fit into a rotary device; and a neck that connects the shank to the working part. Dedicated fingernail burs are used in a variety of procedures, including nail shaping, filing, and debridement under the nails; some burs may be also used for toenail care.
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