How do you read a bur number?
How do you read a bur number?
Code: This is our order number. 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.
What does HP mean in dental burs?
Long Straight Shank
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).
What is the difference between a diamond bur and a carbide bur?
Overall carbide and diamond burs are functionally different. When using a carbide bur the bur is using small blades to slice away small pieces of the tooth while with diamond burs you are grinding the tooth down and leaving it with a rough surface that requires polishing later on with a separate tool.
What do dental bur numbers mean?
, The first set of 3 digits specifies the material of the cutting head. The designation 330 represents SS cutting head, 500 represents tungsten carbide, whereas 806 and 807 represent diamond instruments. 806 and 807 burs are manufactured by electroplating and sintering processes, respectively.
How long do diamond burs last?
Diamond burs wear after multiple use and they should be changed after 5 teeth preparations at most. A diamond bur should not be used for teeth preparation after try-in procedures of metal or zirconia substructures.
What are the three parts of a bur?
The dental bur [4,8,9] has three parts: the head, the neck, and the shank. The head contains the blades, which produce cutting action by rotary motion. The blades are positioned at various degree angles in order to change the property of the bur.
What is the name of the most common lab bur?
What is the most commonly used bur in the laboratory? Acrylic bur.
What dental handpiece is the most versatile?
10 Cards in this Set
| What is the definition of the term Mandrel? | A metal shaft on which a sandpaper disc or abrasive material is mounted |
|---|---|
| Which hand piece is considered the most versatile handpiece used in dentistry? | Low speed handpiece |
| The low speed handpiece is available in speed ranging from 10,000 RPM to: | 30,000 RPM |
Which is the correct numbering system for Dental Burs?
The U.S numbering system is most commonly used for carbide burs and is generally a 1 to 4 digit number dependant on the bur. The ISO numbering system was introduced in 1979, labelling dental burs with a 15 digit code that are broken down into 6 sections: A guide to burs!
Why do we need a dental numbering system?
Since the dental burs are used worldwide, a single standard numbering system, which gives a unique specification for each bur in any part of the world, is mandatory. Though the existing systems have tried to attain this goal, they have their own advantages and limitations that are explained in detail in this article.
Why are Dental Burs used throughout the world?
A single number or name should represent the particular material or instrument throughout the world. Since the dental burs are used worldwide, a single standard numbering system, which gives a unique specification for each bur in any part of the world, is mandatory.
What’s the difference between 68 and 68 Dental Burs?
For example, 68 represents a straight fissure bur with a head diameter of 1 mm, whereas the same bur according to the ISO system has to be mentioned as 500314107000010. The numbering was done starting from 1 for round burs and proceeded in an ascending order for the available bur head sizes in the same shape and then to the next shape.
