Dental burs are used for cutting hard tissues – tooth or bone. They may be made of steel, stainless steel, tungsten carbide and diamond grit. There may be a bewildering variety of dental burs in almost any dental catalogue, but for basic veterinary just use several burs are needed.
All burs use a shank and a head. You’ll find three main types of shank – Long Straight Shank (HP), Latch-type Shank (RA) Grip Shank (FG)
Long Straight Shank (HP)
These shanks match the nose cone from the slow speed handpiece after the prophy angle or contra angle is slowly removed. They are used for diamond cutting discs or long 40mm burs. The primary utilization of HP burs is in the trimming of small herbivore cheek teeth.
Latch-type Shank (RA)
These shanks match the latch in the contra-angle on slow speed handpieces. They are often 20mm long and accessible in the identical shapes as FG burs.
Friction Grip Shank (FG)
These shanks squeeze into the turbine of your high-speed handpiece. The standard length is 20mm long, but longer surgical lengths are available and the are commonly necessary for veterinary work.
Round Head
These heads can be used cavity preparation, creating access points, undercuts and channels for luxator blades in extraction. Sizes range between 1/4 to 9. The smaller the amount, the lesser the head. The best 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. Essentially 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. Essentially the most useful sizes are 700/700L and 701/701L.
Finishing Burs
These heads can be 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 numerous shapes. They are also available as white stone, for composite, or green stone, for amalgam.
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