Which 1SXM Excavation Bur Do You Need?
Pick the shank (RA, long RA-L or HP), then the head size; every active product in the collection is linked once below, and the last three digits of each Busch number are the ISO head size.
1SXM excavation burs, RA (latch)
| Busch No. |
US No. |
Pattern or size |
| 1SXM 010 |
2SXM |
ISO size 010 (1.0 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 012 |
3SXM |
ISO size 012 (1.2 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 014 |
4SXM |
ISO size 014 (1.4 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 016 |
5SXM |
ISO size 016 (1.6 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 018 |
6SXM |
ISO size 018 (1.8 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 021 |
7SXM |
ISO size 021 (2.1 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 023 |
8SXM |
ISO size 023 (2.3 mm) · round, SXM-Cut · RA · pack of 6 |
| 1SXM 027 |
10SXM |
ISO size 027 (2.7 mm) · round, SXM-Cut · RA · pack of 2 |
1SXM excavation burs, RA-L (long latch)
| Busch No. |
US No. |
Pattern or size |
| 1SXM 010 |
2SXM |
ISO size 010 (1.0 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 012 |
3SXM |
ISO size 012 (1.2 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 014 |
4SXM |
ISO size 014 (1.4 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 016 |
5SXM |
ISO size 016 (1.6 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 018 |
6SXM |
ISO size 018 (1.8 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 021 |
7SXM |
ISO size 021 (2.1 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 023 |
8SXM |
ISO size 023 (2.3 mm) · round, SXM-Cut · RA-L · pack of 2 |
| 1SXM 027 |
10SXM |
ISO size 027 (2.7 mm) · round, SXM-Cut · RA-L · pack of 2 |
1SXM excavation burs, HP (straight handpiece)
| Busch No. |
US No. |
Pattern or size |
| 1SXM 010 |
2SXM |
ISO size 010 (1.0 mm) · round, SXM-Cut · HP · pack of 2 |
| 1SXM 012 |
3SXM |
ISO size 012 (1.2 mm) · round, SXM-Cut · HP · pack of 2 |
| 1SXM 014 |
4SXM |
ISO size 014 (1.4 mm) · round, SXM-Cut · HP · pack of 2 |
| 1SXM 016 |
5SXM |
ISO size 016 (1.6 mm) · round, SXM-Cut · HP · pack of 2 |
| 1SXM 018 |
6SXM |
ISO size 018 (1.8 mm) · round, SXM-Cut · HP · pack of 2 |
| 1SXM 021 |
7SXM |
ISO size 021 (2.1 mm) · round, SXM-Cut · HP · pack of 2 |
| 1SXM 023 |
8SXM |
ISO size 023 (2.3 mm) · round, SXM-Cut · HP · pack of 2 |
Special Cutting-Edge Geometry
The Busch 1SX and its specialized variant, the 1SXM Excavation Bur, feature a unique cutting-edge geometry that actively reduces vibrations during use. This results in a noticeably gentler excavation experience for the patient while maintaining the accuracy required for effective caries removal and cavity preparation. Both burs are high-precision round carbide instruments primarily used in operative dentistry.
Key Design Features
-
Green ring on the shank and a gold-plated neck for easy identification
-
Extremely slender neck on the 1SXM variant, providing a clearer view of the working area
- Optimized for minimally invasive procedures where visibility and precision are critical
- Reduced vibration design for patient-friendly operation
- Made in Germany — manufactured to the highest quality standards
Why Choose the 1SXM Excavation Bur?
The slender neck design of the 1SXM Excavation Bur is specifically engineered to enhance visibility in the working area, which is essential when performing minimally invasive restorative procedures. This makes it particularly well-suited for accessing posterior regions or tight interproximal areas where a standard bur neck would obstruct the clinician's line of sight.
Clinical Use
The 1SXM is used at low speed for excavating carious dentin in minimally invasive cavity preparation, where its slender neck keeps the working area visible. The RA-L versions add length for deeper or harder-to-reach cavities, and the HP versions fit a straight handpiece.
Care and Reconditioning
Clean, disinfect and sterilize reusable rotary instruments between patients following the manufacturer instructions and the symbols on each package, and replace an instrument once it loses cutting or polishing performance or shows damage. Our Dental Bur Reprocessing & Sterilization Guide covers the workflow for Busch rotary instruments; maximum speeds are in the Dental Bur Speed Chart.
Compare With
Related Busch collections: 1SX Cavity Preparation Burs, Round Burs, Composite and Amalgam Removal Burs, and Dental Spoon Excavators. For bur numbers and terminology, see the US Bur Numbers page, the Bur Comparison Chart, and the Dental Bur Glossary.
FAQ
What is the difference between the Busch 1SX and the 1SXM? The 1SXM features an extremely slender neck compared to the standard 1SX, offering a clearer view of the working area for enhanced precision in minimally invasive procedures.
What type of bur is the 1SXM? It is a high-precision round carbide bur designed for dental excavation and cavity preparation.
How do I identify a 1SXM bur? These burs are identified by a green ring on the shank and a gold-plated neck.
Manufacturer literature: Busch 1SXM brochure (PDF).