The cutting surfaces of dental
burs are made of a multi-fluted
tungsten carbide, a diamond-coated tip, or a stainless steel multi-fluted rosehead. There are many types and classifications of burs. Some of the most common are the round bur (sizes ¼ to 10) or inverted cone (sizes 33½ to 90L). Burs are also classified by: - The type of material the bur is made of - The shank type and total length of the bur - The shape of the head - The size of the grit - The maximum diameter of the head For instance, a latch type, or right angle bur, is only used in the slow-speed handpiece with contra-angle attachment. A long shank or shaft is only used in slow speed when the contra-angle is not in use, and finally, a friction grip bur, which is a small bur, is used only in the high-speed handpiece. There are many bur shapes that are utilized in various specific procedures.
Operative burs Flat fissure, pear-shaped, football, round, tapered, flame, chamfer, bevel, end cut, bud bur, steel, inverted cone, diamond, brown stone, and green-stone ==Restorative instruments==