Dental burs bring cutting hard tissues – tooth or bone. They’re made of steel, stainless, tungsten carbide and diamond grit. There can be a bewildering variety of dental burs in a dental catalogue, but for basic veterinary use only a couple of burs are essential.
All burs use a shank along with a head. You will find three main types of shank – Long Straight Shank (HP), Latch-type Shank (RA) and Friction Grip Shank (FG)
Long Straight Shank (HP)
These shanks fit into the nose cone with the slow speed handpiece once the prophy angle or contra angle is removed. They are utilized for diamond cutting discs or long 40mm burs. The principle use of HP burs is in the trimming of small herbivore cheek teeth.
Latch-type Shank (RA)
These shanks fit into the latch in the contra-angle on slow speed handpieces. They are generally 20mm long and obtainable in exactly the same shapes as FG burs.
Friction Grip Shank (FG)
These shanks fit into the turbine of a high-speed handpiece. The conventional length is 20mm long, but longer surgical lengths can be found and the can be needed 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. Small the number, the lesser the pinnacle. The top sizes to utilize initially are 1, 2, and 4.
Pear Head
These heads can be used cavity preparation, access points and splitting roots of small teeth. One of the most useful sizes are 330 and 330L
Crosscut Tapered Fissure Head
These heads can be used for sectioning multi-rooted teeth and reducing crown height when disarming dogs. One of 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 assorted shapes. Also, they are like white stone, for composite, or green stone, for amalgam.
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