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Dental burs are used for cutting hard tissues - tooth or
bone. They are made of steel, stainless steel, tungsten carbide
and diamond grit. There can be a bewildering range of dental
burs in any dental catalogue, but for basic veterinary use
only a few burs are needed.
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All burs have a shank and a head. There are three main types
of shank - Long Straight Shank (HP), Latch-type Shank (RA)
and Friction Grip Shank (FG).
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3 burs - from left
HP, RA and FG
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Long Straight Shank (HP)
These shanks fit into the nose cone of the
slow speed handpiece once the prophy angle or
contra angle is removed. They are used 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 fit into the latch of the contra-angle
on slow speed handpieces. They are generally
20mm long and available in the same shapes as
FG burs.
Friction Grip Shank (FG)
These shanks fit into the turbine of a high-speed handpiece. The
standard length is 20mm long, but longer surgical lengths are available
and these are commonly needed for veterinary work.
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Round Head
These heads are used for cavity preparation,
creating access points, undercuts and
channels for luxator blades in extraction.
Sizes range from 1/4 to 9. The smaller
the number, the smaller the head. The
best sizes to use initially are 1, 2,
and 4.
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FG round burs sizes
1,2 and 4
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Pear Head
These heads are used for cavity preparation,
access points and splitting roots of small teeth.
The most useful sizes are 330 and 330L
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Crosscut Tapered Fissure Head
These heads are used for sectioning multi-rooted
teeth and reducing crown height when disarming
dogs. The most useful sizes are 700/700L
and 701/701L.
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Taper fissure burs
(fr L) 700L, 701L, 701, 558
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Finishing Burs
These heads are used for 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 various shapes. They are also available
as white stone, for composite, or green stone, for amalgam.
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FG finishing burs
- diamond, 2 carbides and white stone
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