Carbide dental burscarbide dental burs are made of tungsten carbide, a metal that is extremely hard (about three times stiffer than steel) and can withstand high temperatures. Because of their hardness, carbide dental burs can maintain a sharp cutting edge and be used many times without becoming dull. However, carbide dental burs are brittle and have a tendency to fracture under pressure. They are best operated at high speeds with light pressure.Carbide dental burs are used most commonly for excavating and preparing cavities, finishing cavity walls, finishing restoration surfaces, drilling old fillings, finishing crown preparations, contouring bone, removing impacted teeth, and separating crowns and bridges. Carbide dental burs are defined by their shank and by their head. The type of handpiece being used determines which type of shank is needed. The procedure to be performed determines the type of cutting designhead shape that is chosen. Types of carbide bur shanksthe three main types of shanks are friction grip (fg), right angle (ra) (also known as latch-type), and handpiece (hp).it is important to know which type of shank you want when choosing a bur because each type is designed to fit into a certain type of handpiece.
Zhuzhou, China
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Gorge.Cheung (Rydmet Carbide Technologies Limited)
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