Finishing burs are
used for finishing restorations, soft tissue re-contouring, enameloplasting & odontoplasty
. Finishing burs can be obtained as 12 or 30 bladed burs in carbide or diamond head in a variety of shapes. Finishing burs are also available in white stone for composite and green stone for amalgam.
Do finishing burs cut enamel?
Excess removal and contouring was done with a 10-bladed carbide-finishing bur (Safe End SE8-10 [SS White Burs]) because it
selectively removes the composite while conserving enamel
, unlike a diamond bur. Figure 3. A 20-bladed carbide bur (Safe End SE8-20) was then used to create a smooth surface ready for polishing.
What is a round bur used for?
Round burs are used for
cavity preparation and creating access points
, but they can also create undercuts and channels for blades during a dental extraction. Cross-cut tapered fissure burs are extremely efficient at cutting, which means there’s less debris.
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.
Which part of the bur cuts polishes or finishes?
head
: part of bur that cuts, polishes or finishes (various sizes, shapes and shanks) 2.
How are cutting burs identified?
These burs are identified by
number ranges
, the numbers describe the size, shape, and variation of the bur. it is important to know the number ranges of the burs because the dentist will often ask for a bur by its number. Cutting burs have six to eight cutting blades or surfaces.
What is a 330 bur?
In Stock – SKU: 15001. SS White solid carbide burs are made with high quality fine-grain tungsten carbide, which produces a blade that is sharper and wears longer compared to less expensive coarse grain tungsten carbide.
What are the three parts of a bur?
Each bur comprises 3 parts:
the shank, neck, and head
. The shank, which is inserted into the handpiece, is usually the longest part of the bur. The neck comes next and it is connected to the head, which contains the cutting blade or the bur.
What do dental bur numbers mean?
They gave a 15-digit number for specifying a particular bur. … 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.
What are the three main types of abrasive burs?
- Diamond burs. This type of dental bur is used for polishing teeth and when smooth cutting is required. …
- Carbide burs. Carbide burs offer a smoother finish on the teeth than diamond burs. …
- Steel burs. This type of dental bur is used to prepare a tooth for cavity treatments. …
- Ceramic burs.
Which is better carbide or diamond?
Superabrasive, diamond plated tools have a major edge over
carbide
—longevity and cut-rate set diamond tools apart from the rest. … Additionally, diamond tools have a closer cut tolerance than carbide does. When used in a cutting capacity, such as a diamond hole saw, diamond tools sand and erode the work material.
What design of Bur is a 33 1 2?
| A B | what type of bur is a 33 1/2 inverted cone | this in an advantage when a diamond bur is used cutting ability | finishing bur commonly used for what restorative material composite resin | what is used t hold the disc in the low-speed hand piece contra-angle attachment |
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What mechanism is used to hold the bur in a high speed handpiece?
| What is the definition of the term Mandrel? A metal shaft on which a sandpaper disc or abrasive material is mounted | How many rpm can the high-speed handpiece reach? 450,000 RPM | What mechanism is used to hold the bur in a high-speed handpiece? Friction grip |
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What are the most commonly used finishing burs?
Diamond burs
are most commonly used with high speed handpieces, meaning they are most commonly available as a friction grip shank. Diamond is the hardest material available and is used to grind away tooth tissue, usually enamel. The grinding motion of a diamond bur leaves a rough finish.
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 is a handpiece bur?
Designed for use in the straight- or laboratory-style handpieces, these burs can be used for a wide variety of tasks in a dental laboratory. Some burs are designed for trimming precious alloys, while other are for shaping dental models or ceramic restorations. …
