Dental burs are used for cutting hard tissues – tooth or bone. They are manufactured from steel, stainless steel, tungsten carbide and diamond grit. There is a bewildering array of dental burs in almost any dental catalogue, but also for basic veterinary use only several burs are expected.
All burs possess a shank as well as a head. You can find three main kinds of shank – Long Straight Shank (HP), Latch-type Shank (RA) and Friction Grip Shank (FG)
Long Straight Shank (HP)
These shanks match the nose cone of the slow speed handpiece after the prophy angle or contra angle is taken off. They are utilized for diamond cutting discs or long 40mm burs. The principle utilization of HP burs influences trimming of small herbivore cheek teeth.
Latch-type Shank (RA)
These shanks go with the latch in the contra-angle on slow speed handpieces. They sometimes are 20mm long and for sale in exactly the same shapes as FG burs.
Friction Grip Shank (FG)
These shanks go with the turbine of an high-speed handpiece. The conventional length is 20mm long, but longer surgical lengths can be obtained which are normally essential for veterinary work.
Round Head
These heads can be used for cavity preparation, creating access points, undercuts and channels for luxator blades in extraction. Sizes range from 1/4 to 9. The lesser the telephone number, the smaller your head. The most effective sizes to make use of initially are 1, 2, and 4.
Pear Head
These heads can be used for cavity preparation, access points and splitting roots of small teeth. The most useful sizes are 330 and 330L
Crosscut Tapered Fissure Head
These heads bring sectioning multi-rooted teeth and reducing crown height when disarming dogs. Probably the most useful sizes are 700/700L and 701/701L.
Finishing Burs
These heads can be used finishing restorations, soft tissue recontouring, alveolaplasty, enameloplasty and odontoplasty. They may be obtained as 12 or 30 bladed burs in carbide steel or as diamond heads of various shapes. Fortunately they are available as white stone, for composite, or green stone, for amalgam.
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