What are burs in dentistry?
5 min read
Asked by: Natalie Johnson
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. All burs have a shank and a head.
How many types of Bur are there?
Four types of virtual burs of different sizes: spherical bur (a), cylindrical bur (b), conical bur (c), and cylinder- conical bur (d)
What are the different types of dental burs?
Five Types of Dental Burs and When to Use Them
- Diamond burs.
- Carbide Burs.
- Steel Burs.
- Ceramic burs.
- Cross-cut tapered fissure.
What are 3 uses of surgical burs?
A surgical bur or chisel and mallet may then be used to divide the torus from the surface of the mandible.
Surgical Bur
- Cyst.
- Odontogenic Cyst.
- Treatment Duration.
- Instrument Sterilization.
- Osteotomy.
- General Anesthesia.
- Scaler.
- Osteomyelitis.
What are the burs used for cavity preparation?
Ceramic Burs are ideal for dentin removal and cavity preparation. Cylindrical burs are used for the removal of amalgam restorations. Finishing Burs are designed to add the finishing touches – shape and finer detail – to restorations. Flat-end Cylinder Burs are used for intra-oral tooth preparation.
Which bur is used to remove decay?
Removing Dental Caries
Dental caries are removed using a round tungsten carbide bur at a slow speed.
What do the colors on dental burs mean?
Classifying dental burs according to their grit size
This coding is standardised by the ISO regulatory and the most common colours are: White: Superfine. Yellow: Extra fine. Red: Fine. Blue: Standard.
How are burs classified?
The two most common types of dental burs are tungsten carbide burs and diamond burs. Within those general categories, there are sub-types of burs that come in different shapes, blade configurations, and head angles to suit a variety of procedures.
What is a burr tool?
Burrs or burs (sometimes called rotary files) are small cutting tools; not to be confused with small pieces of metal formed from cutting metal, used in die grinders, rotary tools, or dental drills.
How are burs identified?
They can be distinguished, in addition to the ISO numbering, by the specific colouring found on the coloured ring on the neck of the bur.
Which bur is used for crown preparation?
The 5850-016 or 5850-018 diamond burs are used to develop the shoulder for anterior crown preparations.
What burs are used for amalgam fillings?
For most composite or amalgam procedures, restorations can be finished with either 12-fluted carbide finishing burs or fine-grit diamond burs.
What are the 3 types of Bur shanks?
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).
How are burs classified?
The two most common types of dental burs are tungsten carbide burs and diamond burs. Within those general categories, there are sub-types of burs that come in different shapes, blade configurations, and head angles to suit a variety of procedures.
What is a 330 bur?
Description. Short Pear Carbide Bur. 8-fluted. Measures 0.8 mm in diameter and is 1.6 mm long. Great for starting the occlusal portion with convergent walls for class II amalgam preparations and keeping the depth at 1.5 mm!
How are burs identified?
They can be distinguished, in addition to the ISO numbering, by the specific colouring found on the coloured ring on the neck of the bur.
Which bur is used for crown preparation?
The 5850-016 or 5850-018 diamond burs are used to develop the shoulder for anterior crown preparations.
Which bur is used for chamfer?
012 – Round end taper (Chamfer), Coarse Diamond Bur – 5/pack. The round end taper (chamfer) bur is commonly used for crown preps. The round end taper (chamfer) bur is commonly used for full crown preps and veneers.
How many times can a dental bur be used?
For this reason, especially in prosthetic prepartions, diamond burs should be changed after every 5 preparations. Also, diamond burs that were used in try-in stages of metal and zirconia should not be used for tooth preparation.
How do you read a bur size?
The first three digits indicate the shape (which is the same as the ISO#), and the last three digits indicate the head diameter. For example, item #801-009 is a #801 shape bur with a head diameter of 0.9mm.
Are dental burs reusable?
Here is what the FDA says about reusing dental burs on September 4, 2019: “The FDA considers all diamond-coated burs single-use unless the manufacturer has a 510k clearance on file.”
Are burs disposable?
Most bur and diamond companies now offer low–cost disposable burs and diamonds that lower the cost of purchase to the point that it is more economical to discard them than to sterilize them.
How do you clean dental burs?
Ultrasonic Cleaning: Burs may be ultrasonically cleaned after inserting them in bur holders (or blocks) to prevent damage. A cycle of 10 minutes is recommended, using a enzymatic clean- er, followed by a cold water rinse (2 min.). Be sure to follow manufacturers’ instructions.
Do dental burs need to be sterilized?
Conclusions: Dental burs and endodontic files, as packaged by the manufacturer, are not sterile and should therefore be sterilized before first use.
How do you stop dental burs from rusting?
Carbon steel items — burs, hand instruments, cutting edges of orthodontic instruments, and grasping surfaces of forceps — are prone to rusting and dulling. Spraying or dipping instruments with solutions containing sodium nitrite decreases rust.
Are carbide burs reusable?
BRASSELER USA CARBIDE Burs are reusable devices. BRASSELER USA CARBIDE Burs fit into a dental handpiece, which provides the rotation, allowing the user to cut hard structures in the mouth, e.g., teeth or bone. BRASSELER USA CARBIDE Burs can also be used to cut hard metals, plastics, porcelains and similar materials.
