Carbide Dental Bur

Carbide dental bur is a type of cutter used in a dental drill, including three parts the head, the neck, and the shank. The carbide burs are made of tungsten carbide.
The heads of tungsten carbide burs contain the blades that remove material. These blades may be positioned at different angles in order to change the property of the bur. More obtuse angles will produce a negative rake angle which increases the strength and longevity of the bur. More acute angles will produce a positive rake angle which has a sharper blade, but which dulls more quickly. The heads of other commonly used burs are covered in a fine grit which has a similar cutting function to blades.

There are various shapes of burs that include round, inverted cone, straight fissure, tapered fissure, and pear-shaped burs. Additional cuts across the blades of burs were added to increase cutting efficiency, but their benefit has been minimized with the advent of high-speed handpieces. These extra cuts are called crosscuts.


Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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