What is it?

A dental burr is a type of burr (cutter) used in a rotary handpiece. The burrs are usually made of tungsten carbide or diamond. The three parts to a burr are the head, the neck, and the shank

What is it used for?

Dental burs are used for cutting hard tissues - tooth or bone. They are made of steel, stainless steel, tungsten carbide and diamond grit. There are various shapes of burrs that include round, inverted cone, straight fissure, tapered fissure, and pear-shaped burrs. Additional cuts across the blades of burrs were added to increase cutting efficiency, but their benefit has been minimized with the advent of high-speed handpieces.