Dental burs can be used cutting hard tissues – tooth or bone. They are made from steel, stainless, tungsten carbide and diamond grit. There can be a bewildering array of dental burs in a dental catalogue, but also for basic veterinary just use a few burs are essential.
All burs have a shank along with a head. You’ll 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 squeeze into the nose cone in the slow speed handpiece when the prophy angle or contra angle is slowly removed. They are utilised for diamond cutting discs or long 40mm burs. The main use of HP burs is in the trimming of small herbivore cheek teeth.
Latch-type Shank (RA)
These shanks go with the latch with the contra-angle on slow speed handpieces. They are generally 20mm long and for sale in the same shapes as FG burs.
Friction Grip Shank (FG)
These shanks squeeze into the turbine of your high-speed handpiece. The typical length is 20mm long, but longer surgical lengths are available that can be needed for veterinary work.
Round Head
These heads bring cavity preparation, creating access points, undercuts and channels for luxator blades in extraction. Sizes cover anything from 1/4 to 9. The lesser the quantity, smaller the 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. Probably the most useful sizes are 330 and 330L
Crosscut Tapered Fissure Head
These heads can be used 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 are used for finishing restorations, soft tissue recontouring, alveolaplasty, enameloplasty and odontoplasty. They could be obtained as 12 or 30 bladed burs in carbide steel or as diamond heads of varied shapes. They’re also available as white stone, for composite, or green stone, for amalgam.
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