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2 materials · 88 items
Round burs, technically referred to as excavators, serve the targeted removal of carious dentine. The spherical working part corresponds to figure 001 and is available in all common diameters as well as in an extended version.
The robust blade geometry allows controlled, tissue-preserving work at low speed with clear tactile feedback.
Direct from the Swiss manufacturer in Appenzell. Swiss made to ISO 13485, CE-MDR, stock items ready to ship within 48 hours.
The head size depends on the extent of the caries, not on the type of tooth. Large heads work faster, small ones give more control in areas that are hard to reach.
| Situation | Head size | Drive |
|---|---|---|
| Opening the cavity | Medium to large | Contra-angle handpiece, low speed |
| Broad excavation | Large | Contra-angle handpiece |
| Caries close to the pulp | Small | Contra-angle handpiece, very low speed |
| Proximal area | Small | Contra-angle handpiece, extended |
| Cervical region | Small to medium | Contra-angle handpiece |
They are the same instrument. Round bur is the clinical term for the spherical shape, excavator describes the purpose, namely clearing out carious dentine.
The German name comes from the shape: the spherical head with its blades resembles a rose blossom. In the classification of rotary instruments it carries figure number 001. Do not confuse it with the hand excavator, which works without a drive.
The sizes of rotary instruments are , while the overall designation follows ISO 6360. From the number you can read material, shank type, length, shape and size.
Carbide round burs can be reused when reprocessed by a validated procedure. Once the blades are rounded and the instrument smears instead of cutting, it should be replaced.
The RA shank for the contra-angle handpiece, the FG shank for the turbine, HP for the straight handpiece. Caries excavation is usually carried out in the contra-angle handpiece at low speed.
Relevant for round burs: material group 500 stands for tungsten carbide, 806 for galvanically bonded diamond. The last group gives the diameter of the working part in tenths of a millimetre. An instrument with the same ISO number is interchangeable regardless of manufacturer.
Carbide for excavation. It cuts in a controlled way at low speed and gives noticeable feedback on dentine hardness, which helps distinguish carious from sound dentine.
Diamond-coated round instruments grind rather than cut. They suit enamel and corrections on hard materials, not excavation. For further preparation, diamond burs are available, and for removing old fillings carbide burs.
In the low range of the contra-angle handpiece, with light pressure. High speed removes the tactile feedback that provides the actual control during excavation.
The maximum permissible speed is stated with each item. It is an upper limit, not a recommendation: when excavating you deliberately work below it in order to feel the boundary between carious and sound dentine.
You buy from the manufacturer without intermediaries. That means direct quality control and short routes: stock items are ready to ship within 48 hours, with no need to wait for a sales representative.