Dental burs are used for cutting hard tissues – tooth or bone. They’re made from steel, stainless, tungsten carbide and diamond grit. There might be a bewildering array of dental burs in any dental catalogue, however for basic veterinary use only several burs are essential.
All burs have a very shank as well as a head. There are three main kinds 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 in the slow speed handpiece as soon as the prophy angle or contra angle is removed. They are utilised for diamond cutting discs or long 40mm burs. The key using HP burs influences trimming of small herbivore cheek teeth.
Latch-type Shank (RA)
These shanks match the latch in the contra-angle on slow speed handpieces. They sometimes are 20mm long and available in the identical shapes as FG burs.
Friction Grip Shank (FG)
These shanks match the turbine of your high-speed handpiece. The common length is 20mm long, but longer surgical lengths can be purchased that are normally required 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 vary from 1/4 to 9. Smaller the number, the smaller the pinnacle. The best sizes to use initially are 1, 2, and 4.
Pear Head
These heads can be used 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. 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 are often obtained as 12 or 30 bladed burs in carbide steel or as diamond heads of various shapes. They’re also like white stone, for composite, or green stone, for amalgam.
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