Gold Cura
Gold Cura Special-Shape Diamond Burs FG – EX Series, Pack of 5
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Direct answer: Gold Cura Special-Shape Diamond Burs FG combine double-cone and pear-shaped profiles for specialised occlusal contouring, guide grooves, cavity preparation and localised restorative reduction. Choose EX-11, EX-12, EX-20, EX-21, EX-26 or EX-31. Each order contains 5 identical burs of the selected code.
Special-Shape EX Diamond Burs: Key Facts
| Available codes | EX-11, EX-12, EX-20, EX-21, EX-26 and EX-31 |
|---|---|
| Profile families | Double-cone / football-like and pear-shaped special profiles |
| Typical applications | Occlusal anatomy, guide grooves, cavity shaping, axial contouring and CAD/CAM preparation |
| Shank | FG / friction grip |
| Pack size | 5 identical burs of the selected EX code |
When to Use Each EX Bur
EX codes represent different head geometries, not a single small-to-large size series. Comparable MANI-style catalogues identify EX-11 and EX-12 as double-cone profiles and EX-20, EX-21, EX-26 and EX-31 as pear-type profiles. Confirm the exact Gold Cura dimensions and photographed shape before use.
| Code | Relative profile | When to use it |
|---|---|---|
| EX-11 | Broad, shorter double-cone | For occlusal concavity development, broad anatomical contouring, posterior reduction and shaping where a double-cone profile follows opposing slopes. |
| EX-12 | Longer / larger double-cone | For more extensive occlusal anatomy, wider concave contouring and broader posterior surface reduction than EX-11. |
| EX-20 | Small pear profile | For conservative cavity preparation, localised occlusal reduction, rounded internal form and smaller restorative access. |
| EX-21 | Medium pear profile | A versatile option for routine occlusal and axial reduction, guide grooves, cavity shaping and selected CAD/CAM preparation. |
| EX-26 | Broad pear profile | For larger posterior preparations, extensive occlusal reduction and broad rounded internal contouring where a larger head is appropriate. |
| EX-31 | Compact narrow pear | For conservative localised preparation, narrow occlusal areas, small cavities and precise rounded contouring. |
Simple selection rule: choose EX-11 or EX-12 for double-cone occlusal contouring; choose EX-20, EX-21, EX-26 or EX-31 according to the required pear-profile width and access.
Special EX vs Standard Bur Shapes
| Shape | Best suited for |
|---|---|
| Double-cone EX | Occlusal slopes, concavities and broad anatomical contouring |
| Pear EX | Rounded cavity form, guide grooves and controlled restorative reduction |
| Ball round | Rounded entry and localised concave preparation |
| Taper flat-end | Defined tapered walls and flat terminal form |
How to Select and Use the Correct EX Profile
- Identify the required geometry. Do not select only by code number.
- Use the smallest profile that creates the planned contour.
- Maintain the intended orientation. Double-cone and pear burs can alter anatomy rapidly if tilted.
- Use suitable cooling, speed and light pressure.
- Finish with a less aggressive instrument when required.
Frequently Asked Questions
What are special-shape EX diamond burs used for?
They are used for specialised occlusal contouring, guide grooves, cavity preparation and restorative reduction where standard shapes are less suitable.
Are all EX burs the same shape?
No. EX-11 and EX-12 are double-cone profiles, while EX-20, EX-21, EX-26 and EX-31 are pear-type profiles in comparable catalogues.
Which EX bur is best for conservative pear-shaped preparation?
EX-20 or the compact EX-31 may be appropriate, depending on the required access and photographed head form.
Which EX bur is best for general pear-shaped preparation?
EX-21 is the intermediate, versatile option.
Which EX bur is used for broad occlusal contouring?
EX-11 or EX-12 is selected for double-cone contouring; EX-26 is the broad pear option.
Is this a mixed pack?
No. The pack contains five identical burs of the selected EX code.
Are the published competitor dimensions Gold Cura specifications?
No. Confirm Gold Cura dimensions, grit and maximum speed from the supplied product information.
Can these burs be sterilised and reused?
Follow the supplied cleaning, sterilisation, reuse and replacement instructions.
Related Gold Cura Dental Burs
- Endo Access Diamond Burs FG
- Ball Round Diamond Burs FG
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- Dental Burs & Bur Kits
Professional-use dental instrument. Confirm the selected geometry, dimensions, grit, speed, cooling and processing instructions before use.
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