Dental burs bring cutting hard tissues – tooth or bone. They are made from steel, stainless steel, tungsten carbide and diamond grit. There may be a bewildering selection of dental burs in almost any dental catalogue, but for basic veterinary only use a few burs are required.
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 go with the nose cone from the slow speed handpiece when the prophy angle or contra angle is taken off. They are utilized for diamond cutting discs or long 40mm burs. The key usage of HP burs is within the trimming of small herbivore cheek teeth.
Latch-type Shank (RA)
These shanks squeeze into the latch with the contra-angle on slow speed handpieces. They can be 20mm long and accessible in precisely the same shapes as FG burs.
Friction Grip Shank (FG)
These shanks squeeze into the turbine of the high-speed handpiece. The standard length is 20mm long, but longer surgical lengths can be found which are generally required 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. Small the number, the lesser the top. The very best sizes to work with initially are 1, 2, and 4.
Pear Head
These heads can be used 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 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 can be obtained as 12 or 30 bladed burs in carbide steel or as diamond heads of assorted shapes. They’re also available as white stone, for composite, or green stone, for amalgam.
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